X-Git-Url: http://git.uio.no/git/?p=u%2Fmrichter%2FAliRoot.git;a=blobdiff_plain;f=MUON%2FAliMUONTrackReconstructor.cxx;h=2ce0754f3b176bac15276cefbc31ade5c28127e1;hp=61679d4096fc000c72e95c24c4240bbdc31d86a0;hb=96ebe67e954961b3c45067cd239082c0d43cd009;hpb=42c4004e4015c008faa9b61f6c4238e3f1d42b93 diff --git a/MUON/AliMUONTrackReconstructor.cxx b/MUON/AliMUONTrackReconstructor.cxx index 61679d4096f..2ce0754f3b1 100644 --- a/MUON/AliMUONTrackReconstructor.cxx +++ b/MUON/AliMUONTrackReconstructor.cxx @@ -12,1160 +12,1190 @@ * about the suitability of this software for any purpose. It is * * provided "as is" without express or implied warranty. * **************************************************************************/ -/* -$Log$ -Revision 1.9 2001/03/12 17:45:48 hristov -Changes needed on Sun with CC 5.0 -Revision 1.8 2001/01/26 22:05:41 morsch -Unresolved conflicts resolved. +/* $Id$ */ -Revision 1.7 2001/01/26 21:54:46 morsch -Use access functions to AliMUONHit member data. +//----------------------------------------------------------------------------- +/// \class AliMUONTrackReconstructor +/// MUON track reconstructor using the original method +/// +/// This class contains as data: +/// - the parameters for the track reconstruction +/// +/// It contains as methods, among others: +/// - MakeTracks to build the tracks +//----------------------------------------------------------------------------- +#include "AliMUONTrackReconstructor.h" -Revision 1.6 2001/01/26 20:00:53 hristov -Major upgrade of AliRoot code +#include "AliMUONConstants.h" +#include "AliMUONVCluster.h" +#include "AliMUONVClusterStore.h" +#include "AliMUONTrack.h" +#include "AliMUONTrackParam.h" +#include "AliMUONTrackExtrap.h" -Revision 1.4 2000/12/21 22:14:38 morsch -Clean-up of coding rule violations. +#include "AliLog.h" -Revision 1.3 2000/10/02 21:28:09 fca -Removal of useless dependecies via forward declarations - -Revision 1.2 2000/06/15 07:58:49 morsch -Code from MUON-dev joined - -Revision 1.1.2.7 2000/06/09 22:06:29 morsch -Some coding rule violations corrected. Will soon be obsolete. - -Revision 1.1.2.6 2000/05/02 07:15:29 morsch -Put back TH1.h and TH2.h includes. - -Revision 1.1.2.5 2000/02/17 18:12:43 morsch -Corrections in trackf_read_spoint causing segmentation violations in previous version (I. Chevrot) -New histos (I. Chevrot) - -Revision 1.1.2.4 2000/02/15 18:01:08 morsch -Log messages - -Revision 1.1.2.3 2000/02/15 17:59:01 morsch -Log message added - -Revision 1.1.2.2 2000/02/15 18:54:56 morsch -Reference between track contributing to reconstructed hit and particle corrected -*/ - -#include "AliCallf77.h" -#include "AliMUONTrackReconstructor.h" -#include "AliRun.h" -#include "AliMUON.h" -#include "AliMC.h" - -#include "AliMUONHit.h" -#include "AliMUONPadHit.h" -#include "AliMUONDigit.h" -#include "AliMUONRawCluster.h" -#include "AliMUONReconstHit.h" - -#include "AliPDG.h" - -#include -#include -#include -#include -#include -#include #include -#include +#include +#include +#include -#ifndef WIN32 -# define reco_init reco_init_ -# define cutpxz cutpxz_ -# define sigmacut sigmacut_ -# define xpreci xpreci_ -# define ypreci ypreci_ -# define reconstmuon reconstmuon_ -# define reconstmuon2 reconstmuon2_ -# define trackf_read_geant trackf_read_geant_ -# define trackf_read_fit trackf_read_fit_ -# define trackf_read_spoint trackf_read_spoint_ -# define chfill chfill_ -# define chfill2 chfill2_ -# define chf1 chf1_ -# define chfnt chfnt_ -# define hist_create hist_create_ -# define hist_closed hist_closed_ -# define rndm rndm_ -# define fcn fcn_ -# define trackf_fit trackf_fit_ -# define prec_fit prec_fit_ -# define fcnfit fcnfit_ -# define reco_term reco_term_ -#else -# define reco_init RECO_INIT -# define cutpxz CUTPXZ -# define sigmacut SIGMACUT -# define xpreci XPRECI -# define ypreci YPRECI -# define reconstmuon RECONSTMUON -# define reconstmuon2 RECONSTMUON2 -# define trackf_read_geant TRACKF_READ_GEANT -# define trackf_read_fit TRACKF_READ_FIT -# define trackf_read_spoint TRACKF_READ_SPOINT -# define chfill CHFILL -# define chfill2 CHFILL2 -# define chf1 CHF1 -# define chfnt CHFNT -# define hist_create HIST_CREATE -# define hist_closed HIST_CLOSED -# define rndm RNDM -# define fcn FCN -# define trackf_fit TRACKF_FIT -# define prec_fit PREC_FIT -# define fcnfit FCNFIT -# define reco_term RECO_TERM -#endif +// Functions to be minimized with Minuit +void TrackChi2(Int_t &nParam, Double_t *gradient, Double_t &chi2, Double_t *param, Int_t flag); -extern "C" +/// \cond CLASSIMP +ClassImp(AliMUONTrackReconstructor) // Class implementation in ROOT context +/// \endcond + + //__________________________________________________________________________ +AliMUONTrackReconstructor::AliMUONTrackReconstructor() + : AliMUONVTrackReconstructor() { -void type_of_call reco_init(Double_t &, Double_t &, Double_t &); -void type_of_call reco_term(); -void type_of_call cutpxz(Double_t &); -void type_of_call sigmacut(Double_t &); -void type_of_call xpreci(Double_t &); -void type_of_call ypreci(Double_t &); -void type_of_call reconstmuon(Int_t &, Int_t &, Int_t &, Int_t &, Int_t &); -void type_of_call reconstmuon2(Int_t &, Int_t &, Int_t &); -void type_of_call trackf_read_fit(Int_t &, Int_t &, Int_t &, Int_t *, Double_t *, Double_t *); -void type_of_call trackf_read_geant(Int_t *, Double_t *, Double_t *, Double_t *, Int_t *, Int_t *, Double_t *, Double_t *, Double_t *, Double_t *,Int_t &, Double_t *, Double_t *, Double_t *, Int_t &, Int_t &, Double_t *, Double_t *, Double_t *, Double_t *); -void type_of_call trackf_read_spoint(Int_t *, Double_t *, Double_t *, Double_t *, Int_t *, Int_t *, Double_t *, Double_t *, Double_t *, Double_t *,Int_t &, Double_t *, Double_t *, Double_t *, Int_t &, Int_t &, Double_t *, Double_t *, Double_t *, Double_t *); -void type_of_call chfill(Int_t &, Float_t &, Float_t &, Float_t &); -void type_of_call chfill2(Int_t &, Float_t &, Float_t &, Float_t &); -void type_of_call chf1(Int_t &, Float_t &, Float_t &); -void type_of_call chfnt(Int_t &, Int_t &, Int_t *, Int_t *, Float_t *, Float_t *, Float_t *, Float_t *, Float_t *, Float_t *, Float_t *, Float_t *); -void type_of_call hist_create(); -void type_of_call hist_closed(); -void type_of_call fcnf(Int_t &, Double_t *, Double_t &, Double_t *, Int_t); -void type_of_call fcn(Int_t &, Double_t *, Double_t &, Double_t *, Int_t &, Int_t &); -void type_of_call trackf_fit(Int_t &, Double_t *, Double_t *, Double_t &, Double_t &, Double_t &, Double_t &, Double_t &); -void type_of_call prec_fit(Double_t &, Double_t &, Double_t &, Double_t &, Double_t&, Double_t &, Double_t &, Double_t &, Double_t &, Double_t &, Double_t &, Double_t &, Double_t &, Double_t &, Double_t &); -void type_of_call fcnfitf(Int_t &, Double_t *, Double_t &, Double_t *, Int_t); -void type_of_call fcnfit(Int_t &, Double_t *, Double_t &, Double_t *, Int_t &, Int_t &); -Float_t type_of_call rndm() {return gRandom->Rndm();} -void type_of_call fit_trace(Float_t &, Float_t &, Float_t &, Float_t &, Float_t &, Float_t &, Int_t &, Int_t &, Int_t &, Int_t &); + /// Constructor } -static TTree *gAliNtupleGlobal; -static TFile *gAliFileGlobal; -static TTree *gAliTreeK1; -static TTree *gAliTrH1; -static TClonesArray *gAliHits2; //List of hits for one track only -static TClonesArray *gAliParticles2; //List of particles in the Kine tree - + //__________________________________________________________________________ +AliMUONTrackReconstructor::~AliMUONTrackReconstructor() +{ +/// Destructor +} -// variables of the tracking ntuple -struct { - Int_t ievr; // number of event - Int_t ntrackr; // number of tracks per event - Int_t istatr[500]; // 1 = good muon, 2 = ghost, 0 = something else - Int_t isignr[500]; // sign of the track - Float_t pxr[500]; // x momentum of the reconstructed track - Float_t pyr[500]; // y momentum of the reconstructed track - Float_t pzr[500]; // z momentum of the reconstructed track - Float_t zvr[500]; // z vertex - Float_t chi2r[500]; // chi2 of the fit of the track with the field map - Float_t pxv[500]; // x momentum at vertex - Float_t pyv[500]; // y momentum at vertex - Float_t pzv[500]; // z momentum at vertex -} NtupleSt; + //__________________________________________________________________________ +void AliMUONTrackReconstructor::MakeTrackCandidates(const AliMUONVClusterStore& clusterStore) +{ + /// To make track candidates (assuming linear propagation if the flag fgkMakeTrackCandidatesFast is set to kTRUE): + /// Start with segments station(1..) 4 or 5 then follow track in station 5 or 4. + /// Good candidates are made of at least three clusters. + /// Keep only best candidates or all of them according to the flag fgkTrackAllTracks. + + TClonesArray *segments; + AliMUONTrack *track; + Int_t iCandidate = 0; + Bool_t clusterFound; -ClassImp(AliMUONTrackReconstructor) + AliDebug(1,"Enter MakeTrackCandidates"); -//___________________________________________________ -AliMUONTrackReconstructor::AliMUONTrackReconstructor() -{ -// Constructor -// - fSPxzCut = 3.0; - fSSigmaCut = 4.0; - fSXPrec = 0.01; - fSYPrec = 0.144; + // Loop over stations(1..) 5 and 4 and make track candidates + for (Int_t istat=4; istat>=3; istat--) { + + // Make segments in the station + segments = MakeSegmentsInStation(clusterStore,istat); + + // Loop over segments + for (Int_t iseg=0; isegGetEntriesFast(); iseg++) + { + AliDebug(1,Form("Making primary candidate(1..) %d",++iCandidate)); + + // Transform segments to tracks and put them at the end of fRecTracksPtr + track = new ((*fRecTracksPtr)[fRecTracksPtr->GetLast()+1]) AliMUONTrack((AliMUONObjectPair*)((*segments)[iseg])); + fNRecTracks++; + + // Printout for debuging + if ((AliLog::GetDebugLevel("MUON","AliMUONTrackReconstructor") >= 2) || (AliLog::GetGlobalDebugLevel() >= 2)) { + cout<GetTrackParamAtCluster()->First())->GetCovariances().Print(); + } + + // Look for compatible cluster(s) in the other station + if (AliMUONReconstructor::GetRecoParam()->MakeTrackCandidatesFast()) + clusterFound = FollowLinearTrackInStation(*track, clusterStore, 7-istat); + else clusterFound = FollowTrackInStation(*track, clusterStore, 7-istat); + + // Remove track if no cluster found + if (!clusterFound) { + fRecTracksPtr->Remove(track); + fNRecTracks--; + } + + } + + // delete the array of segments + delete segments; + } + + fRecTracksPtr->Compress(); // this is essential before checking tracks + + // Keep all different tracks or only the best ones as required + if (AliMUONReconstructor::GetRecoParam()->TrackAllTracks()) RemoveIdenticalTracks(); + else RemoveDoubleTracks(); + + AliDebug(1,Form("Number of good candidates = %d",fNRecTracks)); + } -//_____________________________________________________________________________ -void AliMUONTrackReconstructor::Reconst2(Int_t &ifit, Int_t &idebug, Int_t &nev) + //__________________________________________________________________________ +void AliMUONTrackReconstructor::FollowTracks(const AliMUONVClusterStore& clusterStore) { -// -// - reconstmuon2(ifit,idebug,nev); + /// Follow tracks in stations(1..) 3, 2 and 1 + AliDebug(1,"Enter FollowTracks"); + + AliMUONTrack *track, *nextTrack; + AliMUONTrackParam *trackParam, *nextTrackParam; + Int_t currentNRecTracks; + Bool_t clusterFound; + + Double_t sigmaCut2 = AliMUONReconstructor::GetRecoParam()->GetSigmaCutForTracking() * + AliMUONReconstructor::GetRecoParam()->GetSigmaCutForTracking(); + + for (Int_t station = 2; station >= 0; station--) { + + // Save the actual number of reconstructed track in case of + // tracks are added or suppressed during the tracking procedure + // !! Do not compress fRecTracksPtr until the end of the loop over tracks !! + currentNRecTracks = fNRecTracks; + + for (Int_t iRecTrack = 0; iRecTrack UncheckedAt(iRecTrack); + + // Fit the track: + // Do not take into account the multiple scattering to speed up the fit + // Calculate the track parameter covariance matrix + // If "station" is station(1..) 3 then use the vertex to better constrain the fit + if (station==2) Fit(*track, kFALSE, kTRUE, kTRUE); + else Fit(*track, kFALSE, kFALSE, kTRUE); + + // Remove the track if the normalized chi2 is too high + if (track->GetNormalizedChi2() > sigmaCut2) { + fRecTracksPtr->Remove(track); + fNRecTracks--; + continue; + } + + // save parameters from fit into smoothed parameters to complete track afterward + if (AliMUONReconstructor::GetRecoParam()->ComplementTracks()) { + + if (station==2) { // save track parameters on stations 4 and 5 + + // extrapolate track parameters and covariances at each cluster + track->UpdateCovTrackParamAtCluster(); + + // save them + trackParam = (AliMUONTrackParam*) track->GetTrackParamAtCluster()->First(); + while (trackParam) { + trackParam->SetSmoothParameters(trackParam->GetParameters()); + trackParam->SetSmoothCovariances(trackParam->GetCovariances()); + trackParam = (AliMUONTrackParam*) track->GetTrackParamAtCluster()->After(trackParam); + } + + } else { // or save track parameters on last station only + + // save parameters from fit + trackParam = (AliMUONTrackParam*) track->GetTrackParamAtCluster()->First(); + trackParam->SetSmoothParameters(trackParam->GetParameters()); + trackParam->SetSmoothCovariances(trackParam->GetCovariances()); + + // save parameters extrapolated to the second chamber of the same station if it has been hit + nextTrackParam = (AliMUONTrackParam*) track->GetTrackParamAtCluster()->After(trackParam); + if (nextTrackParam->GetClusterPtr()->GetChamberId() < 2*(station+2)) { + + // reset parameters and covariances + nextTrackParam->SetParameters(trackParam->GetParameters()); + nextTrackParam->SetZ(trackParam->GetZ()); + nextTrackParam->SetCovariances(trackParam->GetCovariances()); + + // extrapolate them to the z of the corresponding cluster + AliMUONTrackExtrap::ExtrapToZCov(nextTrackParam, nextTrackParam->GetClusterPtr()->GetZ()); + + // save them + nextTrackParam->SetSmoothParameters(nextTrackParam->GetParameters()); + nextTrackParam->SetSmoothCovariances(nextTrackParam->GetCovariances()); + + } + + } + + } + + // Printout for debuging + if ((AliLog::GetDebugLevel("MUON","AliMUONTrackReconstructor") >= 2) || (AliLog::GetGlobalDebugLevel() >= 2)) { + cout<GetTrackParamAtCluster()->First())->GetCovariances().Print(); + } + + // Look for compatible cluster(s) in station(0..) "station" + clusterFound = FollowTrackInStation(*track, clusterStore, station); + + // Try to recover track if required + if (!clusterFound && AliMUONReconstructor::GetRecoParam()->RecoverTracks()) + clusterFound = RecoverTrack(*track, clusterStore, station); + + // remove track if no cluster found + if (!clusterFound) { + fRecTracksPtr->Remove(track); + fNRecTracks--; + } + + } + + // Compress fRecTracksPtr for the next step + fRecTracksPtr->Compress(); + + // Keep only the best tracks if required + if (!AliMUONReconstructor::GetRecoParam()->TrackAllTracks()) RemoveDoubleTracks(); + + } + + // Last fit of track candidates with all stations + // Take into account the multiple scattering and remove bad tracks + Int_t trackIndex = -1; + track = (AliMUONTrack*) fRecTracksPtr->First(); + while (track) { + + trackIndex++; + nextTrack = (AliMUONTrack*) fRecTracksPtr->After(track); // prepare next track + + Fit(*track, kTRUE, kFALSE, kTRUE); + + // Printout for debuging + if (AliLog::GetGlobalDebugLevel() >= 3) { + cout << "FollowTracks: track candidate(0..) " << trackIndex << " after final fit" << endl; + track->RecursiveDump(); + } + + // Remove the track if the normalized chi2 is too high + if (track->GetNormalizedChi2() > sigmaCut2) { + fRecTracksPtr->Remove(track); + fNRecTracks--; + } + + // save parameters from fit into smoothed parameters to complete track afterward + if (AliMUONReconstructor::GetRecoParam()->ComplementTracks()) { + + // save parameters from fit + trackParam = (AliMUONTrackParam*) track->GetTrackParamAtCluster()->First(); + trackParam->SetSmoothParameters(trackParam->GetParameters()); + trackParam->SetSmoothCovariances(trackParam->GetCovariances()); + + // save parameters extrapolated to the second chamber of the same station if it has been hit + nextTrackParam = (AliMUONTrackParam*) track->GetTrackParamAtCluster()->After(trackParam); + if (nextTrackParam->GetClusterPtr()->GetChamberId() < 2) { + + // reset parameters and covariances + nextTrackParam->SetParameters(trackParam->GetParameters()); + nextTrackParam->SetZ(trackParam->GetZ()); + nextTrackParam->SetCovariances(trackParam->GetCovariances()); + + // extrapolate them to the z of the corresponding cluster + AliMUONTrackExtrap::ExtrapToZCov(nextTrackParam, nextTrackParam->GetClusterPtr()->GetZ()); + + // save them + nextTrackParam->SetSmoothParameters(nextTrackParam->GetParameters()); + nextTrackParam->SetSmoothCovariances(nextTrackParam->GetCovariances()); + + } + + } + + track = nextTrack; + + } + + fRecTracksPtr->Compress(); + } -//_____________________________________________________________________________ -void AliMUONTrackReconstructor::Reconst(Int_t &ifit, Int_t &idebug, Int_t bgdEvent, Int_t &nev, Int_t &idres, Int_t &ireadgeant, Option_t *option,Text_t *filename) + //__________________________________________________________________________ +Bool_t AliMUONTrackReconstructor::FollowTrackInStation(AliMUONTrack &trackCandidate, const AliMUONVClusterStore& clusterStore, Int_t nextStation) { - // - // open kine and hits tree of background file for reconstruction of geant hits - // call tracking fortran program - static Bool_t first=kTRUE; - static TFile *pFile; - const char *addBackground = strstr(option,"Add"); - - if (addBackground ) { // only in case of background with geant hits - if(first) { - fFileName=filename; - cout<<"filename "< forward propagation + // - nextStation < station(1...) 5 => backward propagation + Int_t ch1, ch2; + if (nextStation==4) { + ch1 = 2*nextStation+1; + ch2 = 2*nextStation; + } else { + ch1 = 2*nextStation; + ch2 = 2*nextStation+1; + } + + Double_t chi2WithOneCluster = 1.e10; + Double_t chi2WithTwoClusters = 1.e10; + Double_t maxChi2WithOneCluster = 2. * AliMUONReconstructor::GetRecoParam()->GetSigmaCutForTracking() * + AliMUONReconstructor::GetRecoParam()->GetSigmaCutForTracking(); // 2 because 2 quantities in chi2 + Double_t maxChi2WithTwoClusters = 4. * AliMUONReconstructor::GetRecoParam()->GetSigmaCutForTracking() * + AliMUONReconstructor::GetRecoParam()->GetSigmaCutForTracking(); // 4 because 4 quantities in chi2 + Double_t bestChi2WithOneCluster = maxChi2WithOneCluster; + Double_t bestChi2WithTwoClusters = maxChi2WithTwoClusters; + Bool_t foundOneCluster = kFALSE; + Bool_t foundTwoClusters = kFALSE; + AliMUONTrack *newTrack = 0x0; + AliMUONVCluster *clusterCh1, *clusterCh2; + AliMUONTrackParam extrapTrackParam; + AliMUONTrackParam extrapTrackParamAtCluster1; + AliMUONTrackParam extrapTrackParamAtCluster2; + AliMUONTrackParam bestTrackParamAtCluster1; + AliMUONTrackParam bestTrackParamAtCluster2; + + Int_t nClusters = clusterStore.GetSize(); + Bool_t *clusterCh1Used = new Bool_t[nClusters]; + for (Int_t i = 0; i < nClusters; i++) clusterCh1Used[i] = kFALSE; + Int_t iCluster1; + + // Get track parameters + AliMUONTrackParam extrapTrackParamAtCh(*(AliMUONTrackParam*)trackCandidate.GetTrackParamAtCluster()->First()); + + // Add MCS effect + AliMUONTrackExtrap::AddMCSEffect(&extrapTrackParamAtCh,AliMUONConstants::ChamberThicknessInX0(),1.); + + // Add MCS in the missing chamber if any (only 1 chamber can be missing according to tracking criteria) + if (ch1 < ch2 && extrapTrackParamAtCh.GetClusterPtr()->GetChamberId() > ch2 + 1) { + // extrapolation to the missing chamber + AliMUONTrackExtrap::ExtrapToZCov(&extrapTrackParamAtCh, AliMUONConstants::DefaultChamberZ(ch2 + 1)); + // add MCS effect + AliMUONTrackExtrap::AddMCSEffect(&extrapTrackParamAtCh,AliMUONConstants::ChamberThicknessInX0(),1.); + } + + //Extrapolate trackCandidate to chamber "ch2" + AliMUONTrackExtrap::ExtrapToZCov(&extrapTrackParamAtCh, AliMUONConstants::DefaultChamberZ(ch2)); + + // Printout for debuging + if ((AliLog::GetDebugLevel("MUON","AliMUONTrackReconstructor") >= 2) || (AliLog::GetGlobalDebugLevel() >= 2)) { + cout<= 1) || (AliLog::GetGlobalDebugLevel() >= 1)) { + cout << "FollowTrackInStation: look for clusters in chamber(1..): " << ch2+1 << endl; + } + + // Create iterators to loop over clusters in both chambers + TIter nextInCh1(clusterStore.CreateChamberIterator(ch1,ch1)); + TIter nextInCh2(clusterStore.CreateChamberIterator(ch2,ch2)); + + // look for candidates in chamber 2 + while ( ( clusterCh2 = static_cast(nextInCh2()) ) ) { + + // try to add the current cluster fast + if (!TryOneClusterFast(extrapTrackParamAtCh, clusterCh2)) continue; + + // try to add the current cluster accuratly + chi2WithOneCluster = TryOneCluster(extrapTrackParamAtCh, clusterCh2, extrapTrackParamAtCluster2); + + // if good chi2 then try to attach a cluster in the other chamber too + if (chi2WithOneCluster < maxChi2WithOneCluster) { + Bool_t foundSecondCluster = kFALSE; + + // Printout for debuging + if ((AliLog::GetDebugLevel("MUON","AliMUONTrackReconstructor") >= 1) || (AliLog::GetGlobalDebugLevel() >= 1)) { + cout << "FollowTrackInStation: found one cluster in chamber(1..): " << ch2+1 + << " (Chi2 = " << chi2WithOneCluster << ")" << endl; + cout << " look for second clusters in chamber(1..): " << ch1+1 << " ..." << endl; + } + + // add MCS effect for next step + AliMUONTrackExtrap::AddMCSEffect(&extrapTrackParamAtCluster2,AliMUONConstants::ChamberThicknessInX0(),1.); + + // copy new track parameters for next step + extrapTrackParam = extrapTrackParamAtCluster2; + + //Extrapolate track parameters to chamber "ch1" + AliMUONTrackExtrap::ExtrapToZ(&extrapTrackParam, AliMUONConstants::DefaultChamberZ(ch1)); + + // reset cluster iterator of chamber 1 + nextInCh1.Reset(); + iCluster1 = -1; + + // look for second candidates in chamber 1 + while ( ( clusterCh1 = static_cast(nextInCh1()) ) ) { + iCluster1++; + + // try to add the current cluster fast + if (!TryOneClusterFast(extrapTrackParam, clusterCh1)) continue; + + // try to add the current cluster accuratly + chi2WithTwoClusters = TryTwoClusters(extrapTrackParamAtCluster2, clusterCh1, extrapTrackParamAtCluster1); + + // if good chi2 then create a new track by adding the 2 clusters to the "trackCandidate" + if (chi2WithTwoClusters < maxChi2WithTwoClusters) { + foundSecondCluster = kTRUE; + foundTwoClusters = kTRUE; + + // Printout for debuging + if ((AliLog::GetDebugLevel("MUON","AliMUONTrackReconstructor") >= 1) || (AliLog::GetGlobalDebugLevel() >= 1)) { + cout << "FollowTrackInStation: found second cluster in chamber(1..): " << ch1+1 + << " (Global Chi2 = " << chi2WithTwoClusters << ")" << endl; + } + + if (AliMUONReconstructor::GetRecoParam()->TrackAllTracks()) { + // copy trackCandidate into a new track put at the end of fRecTracksPtr and add the new clusters + newTrack = new ((*fRecTracksPtr)[fRecTracksPtr->GetLast()+1]) AliMUONTrack(trackCandidate); + UpdateTrack(*newTrack,extrapTrackParamAtCluster1,extrapTrackParamAtCluster2); + fNRecTracks++; + + // Tag clusterCh1 as used + clusterCh1Used[iCluster1] = kTRUE; + + // Printout for debuging + if ((AliLog::GetDebugLevel("MUON","AliMUONTrackReconstructor") >= 1) || (AliLog::GetGlobalDebugLevel() >= 1)) { + cout << "FollowTrackInStation: added two clusters in station(1..): " << nextStation+1 << endl; + if (AliLog::GetGlobalDebugLevel() >= 3) newTrack->RecursiveDump(); + } + + } else if (chi2WithTwoClusters < bestChi2WithTwoClusters) { + // keep track of the best couple of clusters + bestChi2WithTwoClusters = chi2WithTwoClusters; + bestTrackParamAtCluster1 = extrapTrackParamAtCluster1; + bestTrackParamAtCluster2 = extrapTrackParamAtCluster2; + } + + } + + } + + // if no clusterCh1 found then consider to add clusterCh2 only + if (!foundSecondCluster) { + foundOneCluster = kTRUE; + + if (AliMUONReconstructor::GetRecoParam()->TrackAllTracks()) { + // copy trackCandidate into a new track put at the end of fRecTracksPtr and add the new cluster + newTrack = new ((*fRecTracksPtr)[fRecTracksPtr->GetLast()+1]) AliMUONTrack(trackCandidate); + UpdateTrack(*newTrack,extrapTrackParamAtCluster2); + fNRecTracks++; + + // Printout for debuging + if ((AliLog::GetDebugLevel("MUON","AliMUONTrackReconstructor") >= 1) || (AliLog::GetGlobalDebugLevel() >= 1)) { + cout << "FollowTrackInStation: added one cluster in chamber(1..): " << ch2+1 << endl; + if (AliLog::GetGlobalDebugLevel() >= 3) newTrack->RecursiveDump(); + } + + } else if (!foundTwoClusters && chi2WithOneCluster < bestChi2WithOneCluster) { + // keep track of the best single cluster except if a couple of clusters has already been found + bestChi2WithOneCluster = chi2WithOneCluster; + bestTrackParamAtCluster1 = extrapTrackParamAtCluster2; + } + + } + } - pFile->cd(); - if(gAliHits2) gAliHits2->Clear(); - if(gAliParticles2) gAliParticles2->Clear(); - if(gAliTrH1) delete gAliTrH1; - gAliTrH1=0; - if(gAliTreeK1) delete gAliTreeK1; - gAliTreeK1=0; - // Get Hits Tree header from file - char treeName[20]; - sprintf(treeName,"TreeH%d",bgdEvent); - gAliTrH1 = (TTree*)gDirectory->Get(treeName); - // printf("gAliTrH1 %p of treename %s for event %d \n",gAliTrH1,treeName,bgdEvent); - if (!gAliTrH1) { - printf("ERROR: cannot find Hits Tree for event:%d\n",bgdEvent); + + } + + // look for candidates in chamber 1 not already attached to a track + // if we want to keep all possible tracks or if no good couple of clusters has been found + if (AliMUONReconstructor::GetRecoParam()->TrackAllTracks() || !foundTwoClusters) { + + // Printout for debuging + if ((AliLog::GetDebugLevel("MUON","AliMUONTrackReconstructor") >= 1) || (AliLog::GetGlobalDebugLevel() >= 1)) { + cout << "FollowTrackInStation: look for single clusters in chamber(1..): " << ch1+1 << endl; } - // set branch addresses - TBranch *branch; - char branchname[30]; - AliMUON *pMUON = (AliMUON*) gAlice->GetModule("MUON"); - sprintf(branchname,"%s",pMUON->GetName()); - if (gAliTrH1 && gAliHits2) { - branch = gAliTrH1->GetBranch(branchname); - if (branch) branch->SetAddress(&gAliHits2); + + // add MCS effect for next step + AliMUONTrackExtrap::AddMCSEffect(&extrapTrackParamAtCh,AliMUONConstants::ChamberThicknessInX0(),1.); + + //Extrapolate trackCandidate to chamber "ch1" + AliMUONTrackExtrap::ExtrapToZCov(&extrapTrackParamAtCh, AliMUONConstants::DefaultChamberZ(ch1)); + + // reset cluster iterator of chamber 1 + nextInCh1.Reset(); + iCluster1 = -1; + + // look for second candidates in chamber 1 + while ( ( clusterCh1 = static_cast(nextInCh1()) ) ) { + iCluster1++; + + if (clusterCh1Used[iCluster1]) continue; // Skip cluster already used + + // try to add the current cluster fast + if (!TryOneClusterFast(extrapTrackParamAtCh, clusterCh1)) continue; + + // try to add the current cluster accuratly + chi2WithOneCluster = TryOneCluster(extrapTrackParamAtCh, clusterCh1, extrapTrackParamAtCluster1); + + // if good chi2 then consider to add clusterCh1 + // We do not try to attach a cluster in the other chamber too since it has already been done above + if (chi2WithOneCluster < maxChi2WithOneCluster) { + foundOneCluster = kTRUE; + + // Printout for debuging + if ((AliLog::GetDebugLevel("MUON","AliMUONTrackReconstructor") >= 1) || (AliLog::GetGlobalDebugLevel() >= 1)) { + cout << "FollowTrackInStation: found one cluster in chamber(1..): " << ch1+1 + << " (Chi2 = " << chi2WithOneCluster << ")" << endl; + } + + if (AliMUONReconstructor::GetRecoParam()->TrackAllTracks()) { + // copy trackCandidate into a new track put at the end of fRecTracksPtr and add the new cluster + newTrack = new ((*fRecTracksPtr)[fRecTracksPtr->GetLast()+1]) AliMUONTrack(trackCandidate); + UpdateTrack(*newTrack,extrapTrackParamAtCluster1); + fNRecTracks++; + + // Printout for debuging + if ((AliLog::GetDebugLevel("MUON","AliMUONTrackReconstructor") >= 1) || (AliLog::GetGlobalDebugLevel() >= 1)) { + cout << "FollowTrackInStation: added one cluster in chamber(1..): " << ch1+1 << endl; + if (AliLog::GetGlobalDebugLevel() >= 3) newTrack->RecursiveDump(); + } + + } else if (chi2WithOneCluster < bestChi2WithOneCluster) { + // keep track of the best single cluster except if a couple of clusters has already been found + bestChi2WithOneCluster = chi2WithOneCluster; + bestTrackParamAtCluster1 = extrapTrackParamAtCluster1; + } + + } + } - gAliTrH1->GetEntries(); - // get the Kine tree - sprintf(treeName,"TreeK%d",bgdEvent); - gAliTreeK1 = (TTree*)gDirectory->Get(treeName); - if (!gAliTreeK1) { - printf("ERROR: cannot find Kine Tree for event:%d\n",bgdEvent); + + } + + // fill out the best track if required else clean up the fRecTracksPtr array + if (!AliMUONReconstructor::GetRecoParam()->TrackAllTracks()) { + if (foundTwoClusters) { + UpdateTrack(trackCandidate,bestTrackParamAtCluster1,bestTrackParamAtCluster2); + + // Printout for debuging + if ((AliLog::GetDebugLevel("MUON","AliMUONTrackReconstructor") >= 1) || (AliLog::GetGlobalDebugLevel() >= 1)) { + cout << "FollowTrackInStation: added the two best clusters in station(1..): " << nextStation+1 << endl; + if (AliLog::GetGlobalDebugLevel() >= 3) newTrack->RecursiveDump(); + } + + } else if (foundOneCluster) { + UpdateTrack(trackCandidate,bestTrackParamAtCluster1); + + // Printout for debuging + if ((AliLog::GetDebugLevel("MUON","AliMUONTrackReconstructor") >= 1) || (AliLog::GetGlobalDebugLevel() >= 1)) { + cout << "FollowTrackInStation: added the best cluster in chamber(1..): " << bestTrackParamAtCluster1.GetClusterPtr()->GetChamberId()+1 << endl; + if (AliLog::GetGlobalDebugLevel() >= 3) newTrack->RecursiveDump(); + } + + } else { + delete [] clusterCh1Used; + return kFALSE; } - // set branch addresses - if (gAliTreeK1) - gAliTreeK1->SetBranchAddress("Particles", &gAliParticles2); - gAliTreeK1->GetEvent(0); - // get back to the first file - TTree *treeK = gAlice->TreeK(); - TFile *file1 = 0; - if (treeK) file1 = treeK->GetCurrentFile(); - file1->cd(); + } else if (foundOneCluster || foundTwoClusters) { - } // end if addBackground + // remove obsolete track + fRecTracksPtr->Remove(&trackCandidate); + fNRecTracks--; + + } else { + delete [] clusterCh1Used; + return kFALSE; + } + + delete [] clusterCh1Used; + return kTRUE; - // call tracking fortran program - reconstmuon(ifit,idebug,nev,idres,ireadgeant); -} - -//________________________________________________________________________________ -void AliMUONTrackReconstructor::Init(Double_t &seff, Double_t &sb0, Double_t &sbl3) -{ - // - // introduce in fortran program somme parameters and cuts for tracking - // create output file "reconst.root" (histos + ntuple) - cutpxz(fSPxzCut); // Pxz cut (GeV/c) to begin the track finding - sigmacut(fSSigmaCut); // Number of sigmas delimiting the searching areas - xpreci(fSXPrec); // Chamber precision in X (cm) - ypreci(fSYPrec); // Chamber precision in Y (cm) - reco_init(seff,sb0,sbl3); -} - -//__________________________________________ -void AliMUONTrackReconstructor::FinishEvent() -{ - // Finish - // TTree *treeK = gAlice->TreeK(); - // TFile *file1 = 0; - // if (treeK) file1 = treeK->GetCurrentFile(); - // file1->cd(); } -//_____________________________________ -void AliMUONTrackReconstructor::Close() + //__________________________________________________________________________ +Double_t AliMUONTrackReconstructor::TryTwoClusters(const AliMUONTrackParam &trackParamAtCluster1, AliMUONVCluster* cluster2, + AliMUONTrackParam &trackParamAtCluster2) { - // - // write histos and ntuple to "reconst.root" file - reco_term(); +/// Test the compatibility between the track and the 2 clusters together (using trackParam's covariance matrix): +/// return the corresponding Chi2 accounting for covariances between the 2 clusters +/// return trackParamAtCluster1 & 2 + + // extrapolate track parameters at the z position of the second cluster (no need to extrapolate the covariances) + trackParamAtCluster2.SetParameters(trackParamAtCluster1.GetParameters()); + trackParamAtCluster2.SetZ(trackParamAtCluster1.GetZ()); + AliMUONTrackExtrap::ExtrapToZ(&trackParamAtCluster2, cluster2->GetZ()); + + // set pointer to cluster2 into trackParamAtCluster2 + trackParamAtCluster2.SetClusterPtr(cluster2); + + // Set differences between track and the 2 clusters in the bending and non bending directions + AliMUONVCluster* cluster1 = trackParamAtCluster1.GetClusterPtr(); + TMatrixD dPos(4,1); + dPos(0,0) = cluster1->GetX() - trackParamAtCluster1.GetNonBendingCoor(); + dPos(1,0) = cluster1->GetY() - trackParamAtCluster1.GetBendingCoor(); + dPos(2,0) = cluster2->GetX() - trackParamAtCluster2.GetNonBendingCoor(); + dPos(3,0) = cluster2->GetY() - trackParamAtCluster2.GetBendingCoor(); + + // Calculate the error matrix from the track parameter covariances at first cluster + TMatrixD error(4,4); + error.Zero(); + if (trackParamAtCluster1.CovariancesExist()) { + // Save track parameters at first cluster + TMatrixD paramAtCluster1Save(trackParamAtCluster1.GetParameters()); + + // Save track coordinates at second cluster + Double_t nonBendingCoor2 = trackParamAtCluster2.GetNonBendingCoor(); + Double_t bendingCoor2 = trackParamAtCluster2.GetBendingCoor(); + + // copy track parameters at first cluster for jacobian calculation + AliMUONTrackParam trackParam(trackParamAtCluster1); + + // add MCS effect to the covariance matrix at first cluster + AliMUONTrackExtrap::AddMCSEffect(&trackParam,AliMUONConstants::ChamberThicknessInX0(),1.); + + // Get the pointer to the parameter covariance matrix at first cluster + const TMatrixD& kParamCov = trackParam.GetCovariances(); + + // Calculate the jacobian related to the transformation between track parameters + // at first cluster and track coordinates at the 2 cluster z-positions + TMatrixD jacob(4,5); + jacob.Zero(); + // first derivative at the first cluster: + jacob(0,0) = 1.; // dx1/dx + jacob(1,2) = 1.; // dy1/dy + // first derivative at the second cluster: + TMatrixD dParam(5,1); + for (Int_t i=0; i<5; i++) { + // Skip jacobian calculation for parameters with no associated error + if (kParamCov(i,i) == 0.) continue; + // Small variation of parameter i only + for (Int_t j=0; j<5; j++) { + if (j==i) { + dParam(j,0) = TMath::Sqrt(kParamCov(i,i)); + if (j == 4) dParam(j,0) *= TMath::Sign(1.,-paramAtCluster1Save(4,0)); // variation always in the same direction + } else dParam(j,0) = 0.; + } + + // Set new track parameters at first cluster + trackParam.SetParameters(paramAtCluster1Save); + trackParam.AddParameters(dParam); + trackParam.SetZ(cluster1->GetZ()); + + // Extrapolate new track parameters to the z position of the second cluster + AliMUONTrackExtrap::ExtrapToZ(&trackParam,cluster2->GetZ()); + + // Calculate the jacobian + jacob(2,i) = (trackParam.GetNonBendingCoor() - nonBendingCoor2) / dParam(i,0); // dx2/dParami + jacob(3,i) = (trackParam.GetBendingCoor() - bendingCoor2 ) / dParam(i,0); // dy2/dParami + } + + // Calculate the error matrix + TMatrixD tmp(jacob,TMatrixD::kMult,kParamCov); + error = TMatrixD(tmp,TMatrixD::kMultTranspose,jacob); + } + + // Add cluster resolution to the error matrix + error(0,0) += cluster1->GetErrX2(); + error(1,1) += cluster1->GetErrY2(); + error(2,2) += cluster2->GetErrX2(); + error(3,3) += cluster2->GetErrY2(); + + // invert the error matrix for Chi2 calculation + if (error.Determinant() != 0) { + error.Invert(); + } else { + AliWarning(" Determinant error=0"); + return 1.e10; + } + + // Compute the Chi2 value + TMatrixD tmp2(dPos,TMatrixD::kTransposeMult,error); + TMatrixD result(tmp2,TMatrixD::kMult,dPos); + + return result(0,0); + } -//________________________________________________________ -void chfill(Int_t &id, Float_t &x, Float_t &y, Float_t &w) + //__________________________________________________________________________ +void AliMUONTrackReconstructor::UpdateTrack(AliMUONTrack &track, AliMUONTrackParam &trackParamAtCluster) { - // - // fill histo like hfill in fortran - char name[5]; - sprintf(name,"h%d",id); - TH1F *h1 = (TH1F*) gDirectory->Get(name); - h1->Fill(x); + /// Add 1 cluster to the track candidate + /// Update chi2 of the track + + // Compute local chi2 + AliMUONVCluster* cluster = trackParamAtCluster.GetClusterPtr(); + Double_t deltaX = trackParamAtCluster.GetNonBendingCoor() - cluster->GetX(); + Double_t deltaY = trackParamAtCluster.GetBendingCoor() - cluster->GetY(); + Double_t localChi2 = deltaX*deltaX / cluster->GetErrX2() + + deltaY*deltaY / cluster->GetErrY2(); + + // Flag cluster as being not removable + trackParamAtCluster.SetRemovable(kFALSE); + trackParamAtCluster.SetLocalChi2(0.); // --> Local chi2 not used + + // Update the chi2 of the new track + track.SetGlobalChi2(track.GetGlobalChi2() + localChi2); + + // Update TrackParamAtCluster + track.AddTrackParamAtCluster(trackParamAtCluster,*cluster); + track.GetTrackParamAtCluster()->Sort(); + } -//_________________________________________________________ -void chfill2(Int_t &id, Float_t &x, Float_t &y, Float_t &w) + //__________________________________________________________________________ +void AliMUONTrackReconstructor::UpdateTrack(AliMUONTrack &track, AliMUONTrackParam &trackParamAtCluster1, AliMUONTrackParam &trackParamAtCluster2) { - // - // fill histo like hfill2 in fortran - char name[5]; - sprintf(name,"h%d",id); - TH2F *h2 = (TH2F*) gDirectory->Get(name); - h2->Fill(x,y,w); + /// Add 2 clusters to the track candidate + /// Update track and local chi2 + + // Update local chi2 at first cluster + AliMUONVCluster* cluster1 = trackParamAtCluster1.GetClusterPtr(); + Double_t deltaX = trackParamAtCluster1.GetNonBendingCoor() - cluster1->GetX(); + Double_t deltaY = trackParamAtCluster1.GetBendingCoor() - cluster1->GetY(); + Double_t localChi2AtCluster1 = deltaX*deltaX / cluster1->GetErrX2() + + deltaY*deltaY / cluster1->GetErrY2(); + trackParamAtCluster1.SetLocalChi2(localChi2AtCluster1); + + // Flag first cluster as being removable + trackParamAtCluster1.SetRemovable(kTRUE); + + // Update local chi2 at second cluster + AliMUONVCluster* cluster2 = trackParamAtCluster2.GetClusterPtr(); + deltaX = trackParamAtCluster2.GetNonBendingCoor() - cluster2->GetX(); + deltaY = trackParamAtCluster2.GetBendingCoor() - cluster2->GetY(); + Double_t localChi2AtCluster2 = deltaX*deltaX / cluster2->GetErrX2() + + deltaY*deltaY / cluster2->GetErrY2(); + trackParamAtCluster2.SetLocalChi2(localChi2AtCluster2); + + // Flag first cluster as being removable + trackParamAtCluster2.SetRemovable(kTRUE); + + // Update the chi2 of the new track + track.SetGlobalChi2(track.GetGlobalChi2() + localChi2AtCluster1 + localChi2AtCluster2); + + // Update TrackParamAtCluster + track.AddTrackParamAtCluster(trackParamAtCluster1,*cluster1); + track.AddTrackParamAtCluster(trackParamAtCluster2,*cluster2); + track.GetTrackParamAtCluster()->Sort(); + } -//__________________________________________ -void chf1(Int_t &id, Float_t &x, Float_t &w) + //__________________________________________________________________________ +Bool_t AliMUONTrackReconstructor::RecoverTrack(AliMUONTrack &trackCandidate, const AliMUONVClusterStore& clusterStore, Int_t nextStation) { - // - // fill histo like hf1 in fortran - char name[5]; - sprintf(name,"h%d",id); - TH1F *h1 = (TH1F*) gDirectory->Get(name); - h1->Fill(x,w); + /// Try to recover the track candidate in the next station + /// by removing the worst of the two clusters attached in the current station + /// Return kTRUE if recovering succeeds + AliDebug(1,"Enter RecoverTrack"); + + // Do not try to recover track until we have attached cluster(s) on station(1..) 3 + if (nextStation > 1) return kFALSE; + + Int_t worstClusterNumber = -1; + Double_t localChi2, worstLocalChi2 = 0.; + + // Look for the cluster to remove + for (Int_t clusterNumber = 0; clusterNumber < 2; clusterNumber++) { + AliMUONTrackParam *trackParamAtCluster = (AliMUONTrackParam*)trackCandidate.GetTrackParamAtCluster()->UncheckedAt(clusterNumber); + + // check if current cluster is removable + if (!trackParamAtCluster->IsRemovable()) return kFALSE; + + // Pick up cluster with the worst chi2 + localChi2 = trackParamAtCluster->GetLocalChi2(); + if (localChi2 > worstLocalChi2) { + worstLocalChi2 = localChi2; + worstClusterNumber = clusterNumber; + } + } + + // Reset best cluster as being NOT removable + ((AliMUONTrackParam*)trackCandidate.GetTrackParamAtCluster()->UncheckedAt((worstClusterNumber+1)%2))->SetRemovable(kFALSE); + + // Remove the worst cluster + trackCandidate.RemoveTrackParamAtCluster((AliMUONTrackParam*)trackCandidate.GetTrackParamAtCluster()->UncheckedAt(worstClusterNumber)); + + // Re-fit the track: + // Do not take into account the multiple scattering to speed up the fit + // Calculate the track parameter covariance matrix + Fit(trackCandidate, kFALSE, kFALSE, kTRUE); + + // Look for new cluster(s) in next station + return FollowTrackInStation(trackCandidate,clusterStore,nextStation); + } -//_________________ -void hist_create() + //__________________________________________________________________________ +void AliMUONTrackReconstructor::SetVertexErrXY2ForFit(AliMUONTrack &trackCandidate) { - // - // Create an output file ("reconst.root") - // Create some histograms and an ntuple - - gAliFileGlobal = new TFile("reconst.root","RECREATE","Ntuple - reconstruction"); - - gAliNtupleGlobal = new TTree("ntuple","Reconst ntuple"); - gAliNtupleGlobal->Branch("ievr",&NtupleSt.ievr,"ievr/I"); - gAliNtupleGlobal->Branch("ntrackr",&NtupleSt.ntrackr,"ntrackr/I"); - gAliNtupleGlobal->Branch("istatr",&NtupleSt.istatr[0],"istatr[500]/I"); - gAliNtupleGlobal->Branch("isignr",&NtupleSt.isignr[0],"isignr[500]/I"); - gAliNtupleGlobal->Branch("pxr",&NtupleSt.pxr[0],"pxr[500]/F"); - gAliNtupleGlobal->Branch("pyr",&NtupleSt.pyr[0],"pyr[500]/F"); - gAliNtupleGlobal->Branch("pzr",&NtupleSt.pzr[0],"pzr[500]/F"); - gAliNtupleGlobal->Branch("zvr",&NtupleSt.zvr[0],"zvr[500]/F"); - gAliNtupleGlobal->Branch("chi2r",&NtupleSt.chi2r[0],"chi2r[500]/F"); - gAliNtupleGlobal->Branch("pxv",&NtupleSt.pxv[0],"pxv[500]/F"); - gAliNtupleGlobal->Branch("pyv",&NtupleSt.pyv[0],"pyv[500]/F"); - gAliNtupleGlobal->Branch("pzv",&NtupleSt.pzv[0],"pzv[500]/F"); - - // test aliroot - - new TH1F("h100","particule id du hit geant",20,0.,20.); - new TH1F("h101","position en x du hit geant",100,-200.,200.); - new TH1F("h102","position en y du hit geant",100,-200.,200.); - new TH1F("h103","chambre de tracking concernee",15,0.,14.); - new TH1F("h104","moment ptot du hit geant",50,0.,100.); - new TH1F("h105","px au vertex",50,0.,20.); - new TH1F("h106","py au vertex",50,0.,20.); - new TH1F("h107","pz au vertex",50,0.,20.); - new TH1F("h108","position zv",50,-15.,15.); - new TH1F("h109","position en x du hit reconstruit",100,-300.,300.); - new TH1F("h110","position en y du hit reconstruit",100,-300.,300.); - new TH1F("h111","delta x station 1",100,-0.3,0.3); - new TH1F("h112","delta x station 2",100,-0.3,0.3); - new TH1F("h113","delta x station 3",100,-0.3,0.3); - new TH1F("h114","delta x station 4",100,-0.5,0.5); - new TH1F("h115","delta x station 5",100,-0.5,0.5); - new TH1F("h116","delta x station 1",100,-2,2); - new TH1F("h117","delta x station 2",100,-2,2); - new TH1F("h121","delta y station 1",100,-0.04,0.04); - new TH1F("h122","delta y station 2",100,-0.04,0.04); - new TH1F("h123","delta y station 3",100,-0.04,0.04); - new TH1F("h124","delta y station 4",100,-0.04,0.04); - new TH1F("h125","delta y station 5",100,-0.04,0.04); - - /* char hname[30]; - char hname1[30]; - for (int i=0;i<10;i++) { - sprintf(hname,"deltax%d",i); - sprintf(hname1,"h12%d",i); - new TH1F(hname1,hname ,100,-0.4,0.4); - sprintf(hname,"deltay%d",i); - sprintf(hname1,"h13%d",i); - new TH1F(hname1,hname ,100,-0.4,0.4); - } - */ - new TH2F("h2000","VAR X st. 5",30,3.0,183.0,100,0.,25.); - new TH2F("h2001","VAR Y st. 5",30,3.0,183.0,100,0.,25.); - - new TH2F("h2500","P vs X HHIT",30,3.0,183.0,200,0.,200.); - new TH2F("h2501","P vs X HHIT**2",30,3.0,183.0,200,0.,5000.); - new TH2F("h2502","P vs X EPH2 st. 5",30,3.0,183.0,100,0.,0.000005); - new TH2F("h2503","P vs X EAL2 st. 5",30,3.0,183.0,100,0.,0.01); - //new TH2F("h2504","P vs X EXM2 st. 5",30,3.0,183.0,100,0.,1.5); - new TH2F("h2504","P vs X EXM2 st. 5",30,3.0,183.0,100,0.,0.1); - new TH2F("h2505","P vs X EYM2 st. 5",30,3.0,183.0,100,0.,30.); - - new TH2F("h2507","P vs X EPH st. 5",30,3.0,183.0,100,0.,0.003); - new TH2F("h2508","P vs X EAL st. 5",30,3.0,183.0,100,0.,0.3); - //new TH2F("h2509","P vs X EXM st. 5",30,3.0,183.0,100,0.,1.5); - new TH2F("h2509","P vs X EXM st. 5",30,3.0,183.0,100,0.,0.4); - new TH2F("h2510","P vs X EYM st. 5",30,3.0,183.0,100,0.,30.); - - new TH2F("h2511","P vs X EPH cut st. 5",30,3.0,183.0,100,0.,0.01); - new TH2F("h2512","P vs X EAL cut st. 5",30,3.0,183.0,100,0.,0.3); - //new TH2F("h2513","P vs X EXM cut st. 5",30,3.0,183.0,100,0.,1.5); - new TH2F("h2513","P vs X EXM cut st. 5",30,3.0,183.0,100,0.,0.4); - new TH2F("h2514","P vs X EYM cut st. 5",30,3.0,183.0,100,0.,30.); - // 4 - new TH2F("h2400","P vs X HHIT",30,3.0,183.0,200,0.,200.); - new TH2F("h2401","P vs X HHIT**2",30,3.0,183.0,200,0.,5000.); - new TH2F("h2402","P vs X EPH2 st. 4",30,3.0,183.0,100,0.,0.000005); - new TH2F("h2403","P vs X EAL2 st. 4",30,3.0,183.0,100,0.,0.05); - //new TH2F("h2404","P vs X EXM2 st. 4",30,3.0,183.0,100,0.,1.5); - new TH2F("h2404","P vs X EXM2 st. 4",30,3.0,183.0,100,0.,0.1); - new TH2F("h2405","P vs X EYM2 st. 4",30,3.0,183.0,100,0.,30.); - - new TH2F("h2407","P vs X EPH st. 4",30,3.0,183.0,100,0.,0.003); - new TH2F("h2408","P vs X EAL st. 4",30,3.0,183.0,100,0.,0.3); - //new TH2F("h2409","P vs X EXM st. 4",30,3.0,183.0,100,0.,1.5); - new TH2F("h2409","P vs X EXM st. 4",30,3.0,183.0,100,0.,0.1); - new TH2F("h2410","P vs X EYM st. 4",30,3.0,183.0,100,0.,30.); - - new TH2F("h2411","P vs X EPH cut st. 4",30,3.0,183.0,100,0.,0.01); - new TH2F("h2412","P vs X EAL cut st. 4",30,3.0,183.0,100,0.,0.3); - //new TH2F("h2413","P vs X EXM cut st. 4",30,3.0,183.0,100,0.,1.5); - new TH2F("h2413","P vs X EXM cut st. 4",30,3.0,183.0,100,0.,0.1); - new TH2F("h2414","P vs X EYM cut st. 4",30,3.0,183.0,100,0.,30.); - // 3 - new TH1F("h2301","P2",30,3.0,183.0); - new TH2F("h2302","P2 vs X EPH2 st. 3",30,3.0,183.0,100,0.,0.0006); - new TH2F("h2303","P2 vs X EAL2 st. 3",30,3.0,183.0,100,0.,0.0005); - //new TH2F("h2304","P2 vs X EXM2 st. 3",30,3.0,183.0,100,0.,1.5); - new TH2F("h2304","P2 vs X EXM2 st. 3",30,3.0,183.0,100,0.,2.); - new TH2F("h2305","P2 vs X EYM2 st. 3",30,3.0,183.0,100,0.,3.); - - new TH2F("h2307","P vs X EPH2 st. 3",30,3.0,183.0,100,0.,0.0006); - new TH2F("h2308","P vs X EAL2 st. 3",30,3.0,183.0,100,0.,0.005); - //new TH2F("h2309","P vs X EXM2 st. 3",30,3.0,183.0,100,0.,1.5); - new TH2F("h2309","P vs X EXM2 st. 3",30,3.0,183.0,100,0.,2.); - new TH2F("h2310","P vs X EYM2 st. 3",30,3.0,183.0,100,0.,3.); - - new TH2F("h2311","P vs X EPH cut st. 3",30,3.0,183.0,100,0.,0.06); - new TH2F("h2312","P vs X EAL cut st. 3",30,3.0,183.0,100,0.,0.05); - //new TH2F("h2313","P vs X EXM cut st. 3",30,3.0,183.0,100,0.,1.5); - new TH2F("h2313","P vs X EXM cut st. 3",30,3.0,183.0,100,0.,6.); - new TH2F("h2314","P vs X EYM cut st. 3",30,3.0,183.0,100,0.,7.); - - new TH2F("h2315","P2 vs X EPH cut st. 3",30,3.0,183.0,100,0.,0.06); - new TH2F("h2316","P2 vs X EAL cut st. 3",30,3.0,183.0,100,0.,0.05); - //new TH2F("h2317","P2 vs X EXM cut st. 3",30,3.0,183.0,100,0.,1.5); - new TH2F("h2317","P2 vs X EXM cut st. 3",30,3.0,183.0,100,0.,6.); - new TH2F("h2318","P2 vs X EYM cut st. 3",30,3.0,183.0,100,0.,7.); - - // 2 - new TH1F("h2201","P2",30,3.0,183.0); - new TH2F("h2202","P2 vs X EPH2 st. 2",30,3.0,183.0,100,0.,0.0006); - new TH2F("h2203","P2 vs X EAL2 st. 2",30,3.0,183.0,100,0.,0.005); - //new TH2F("h2204","P2 vs X EXM2 st. 2",30,3.0,183.0,100,0.,1.5); - new TH2F("h2204","P2 vs X EXM2 st. 2",30,3.0,183.0,100,0.,7.); - new TH2F("h2205","P2 vs X EYM2 st. 2",30,3.0,183.0,100,0.,5.); - - new TH2F("h2207","P vs X EPH2 st. 2",30,3.0,183.0,100,0.,0.0006); - new TH2F("h2208","P vs X EAL2 st. 2",30,3.0,183.0,100,0.,0.005); - //new TH2F("h2209","P vs X EXM2 st. 2",30,3.0,183.0,100,0.,1.5); - new TH2F("h2209","P vs X EXM2 st. 2",30,3.0,183.0,100,0.,7.); - new TH2F("h2210","P vs X EYM2 st. 2",30,3.0,183.0,100,0.,5.); - - new TH2F("h2211","P vs X EPH cut st. 2",30,3.0,183.0,100,0.,0.05); - new TH2F("h2212","P vs X EAL cut st. 2",30,3.0,183.0,100,0.,0.2); - //new TH2F("h2213","P vs X EXM cut st. 2",30,3.0,183.0,100,0.,1.5); - new TH2F("h2213","P vs X EXM cut st. 2",30,3.0,183.0,100,0.,11.); - new TH2F("h2214","P vs X EYM cut st. 2",30,3.0,183.0,100,0.,10.); - - new TH2F("h2215","P2 vs X EPH cut st. 2",30,3.0,183.0,100,0.,0.05); - new TH2F("h2216","P2 vs X EAL cut st. 2",30,3.0,183.0,100,0.,0.2); - //new TH2F("h2217","P2 vs X EXM cut st. 2",30,3.0,183.0,100,0.,1.5); - new TH2F("h2217","P2 vs X EXM cut st. 2",30,3.0,183.0,100,0.,11.); - new TH2F("h2218","P2 vs X EYM cut st. 2",30,3.0,183.0,100,0.,10.); - - // 1 - new TH2F("h2102","P2 vs X EPH2 st. 2",30,3.0,183.0,100,0.,0.0006); - new TH2F("h2103","P2 vs X EAL2 st. 2",30,3.0,183.0,100,0.,0.005); - //new TH2F("h2104","P2 vs X EXM2 st. 2",30,3.0,183.0,100,0.,1.5); - new TH2F("h2104","P2 vs X EXM2 st. 2",30,3.0,183.0,100,0.,7.); - new TH2F("h2105","P2 vs X EYM2 st. 2",30,3.0,183.0,100,0.,7.); - - new TH2F("h2107","P vs X EPH2 st. 2",30,3.0,183.0,100,0.,0.0006); - new TH2F("h2108","P vs X EAL2 st. 2",30,3.0,183.0,100,0.,0.005); - //new TH2F("h2109","P vs X EXM2 st. 2",30,3.0,183.0,100,0.,1.5); - new TH2F("h2109","P vs X EXM2 st. 2",30,3.0,183.0,100,0.,7.); - new TH2F("h2110","P vs X EYM2 st. 2",30,3.0,183.0,100,0.,7.); - - new TH2F("h2111","P vs X EPH cut st. 2",30,3.0,183.0,100,0.,0.1); - new TH2F("h2112","P vs X EAL cut st. 2",30,3.0,183.0,100,0.,0.2); - //new TH2F("h2113","P vs X EXM cut st. 2",30,3.0,183.0,100,0.,1.5); - new TH2F("h2113","P vs X EXM cut st. 2",30,3.0,183.0,100,0.,11.); - new TH2F("h2114","P vs X EYM cut st. 2",30,3.0,183.0,100,0.,11.); - - new TH2F("h2115","P2 vs X EPH cut st. 2",30,3.0,183.0,100,0.,0.1); - new TH2F("h2116","P2 vs X EAL cut st. 2",30,3.0,183.0,100,0.,0.2); - //new TH2F("h2117","P2 vs X EXM cut st. 2",30,3.0,183.0,100,0.,1.5); - new TH2F("h2117","P2 vs X EXM cut st. 2",30,3.0,183.0,100,0.,11.); - new TH2F("h2118","P2 vs X EYM cut st. 2",30,3.0,183.0,100,0.,11.); - - // 2,3,4,5 - new TH1F("h2701","P2 fit 2",30,3.0,183.0); - new TH2F("h2702","P2 vs X EPH2 st. 1 fit 2",30,3.0,183.0,100,0.,0.0006); - new TH2F("h2703","P2 vs X EAL2 st. 1 fit 2",30,3.0,183.0,100,0.,0.005); - // new TH2F("h2704","P2 vs X EXM2 st. 1 fit 2",30,3.0,183.0,100,0.,1.5); - new TH2F("h2704","P2 vs X EXM2 st. 1 fit 2",30,3.0,183.0,100,0.,2.); - new TH2F("h2705","P2 vs X EYM2 st. 1 fit 2",30,3.0,183.0,100,0.,3.); - - new TH2F("h2707","P vs X EPH2 st. 1 fit 2",30,3.0,183.0,100,0.,0.0006); - new TH2F("h2708","P vs X EAL2 st. 1 fit 2",30,3.0,183.0,100,0.,0.005); - //new TH2F("h2709","P vs X EXM2 st. 1 fit 2",30,3.0,183.0,100,0.,1.5); - new TH2F("h2709","P vs X EXM2 st. 1 fit 2",30,3.0,183.0,100,0.,2.); - new TH2F("h2710","P vs X EYM2 st. 1 fit 2",30,3.0,183.0,100,0.,3.); - - new TH2F("h2711","P vs X EPH cut st. 1 fit 2",30,3.0,183.0,100,0.,0.07); - new TH2F("h2712","P vs X EAL cut st. 1 fit 2",30,3.0,183.0,100,0.,0.2); - //new TH2F("h2713","P vs X EXM cut st. 1 fit 2",30,3.0,183.0,100,0.,1.5); - new TH2F("h2713","P vs X EXM cut st. 1 fit 2",30,3.0,183.0,100,0.,6.); - new TH2F("h2714","P vs X EYM cut st. 1 fit 2",30,3.0,183.0,100,0.,7.); - - new TH2F("h2715","P2 vs X EPH cut st. 1 fit 2",30,3.0,183.0,100,0.,0.07); - new TH2F("h2716","P2 vs X EAL cut st. 1 fit 2",30,3.0,183.0,100,0.,0.2); - //new TH2F("h2717","P2 vs X EXM cut st. 1 fit 2",30,3.0,183.0,100,0.,1.5); - new TH2F("h2717","P2 vs X EXM cut st. 1 fit 2",30,3.0,183.0,100,0.,6.); - new TH2F("h2718","P2 vs X EYM cut st. 1 fit 2",30,3.0,183.0,100,0.,7.); - - // 1,3,4,5 - new TH1F("h2801","P2 fit 1",30,3.0,183.0); - new TH2F("h2802","P2 vs X EPH2 st. 2 fit 1",30,3.0,183.0,100,0.,0.0006); - new TH2F("h2803","P2 vs X EAL2 st. 2 fit 1",30,3.0,183.0,100,0.,0.005); - //new TH2F("h2804","P2 vs X EXM2 st. 2 fit 1",30,3.0,183.0,100,0.,1.5); - new TH2F("h2804","P2 vs X EXM2 st. 2 fit 1",30,3.0,183.0,100,0.,2.); - new TH2F("h2805","P2 vs X EYM2 st. 2 fit 1",30,3.0,183.0,100,0.,3.); - - new TH2F("h2807","P vs X EPH2 st. 2 fit 1",30,3.0,183.0,100,0.,0.0006); - new TH2F("h2808","P vs X EAL2 st. 2 fit 1",30,3.0,183.0,100,0.,0.005); - //new TH2F("h2809","P vs X EXM2 st. 2 fit 1",30,3.0,183.0,100,0.,1.5); - new TH2F("h2809","P vs X EXM2 st. 2 fit 1",30,3.0,183.0,100,0.,2.); - new TH2F("h2810","P vs X EYM2 st. 2 fit 1",30,3.0,183.0,100,0.,3.); - - new TH2F("h2811","P vs X EPH cut st. 2 fit 1",30,3.0,183.0,100,0.,0.05); - new TH2F("h2812","P vs X EAL cut st. 2 fit 1",30,3.0,183.0,100,0.,0.2); - //new TH2F("h2813","P vs X EXM cut st. 2 fit 1",30,3.0,183.0,100,0.,1.5); - new TH2F("h2813","P vs X EXM cut st. 2 fit 1",30,3.0,183.0,100,0.,5.); - new TH2F("h2814","P vs X EYM cut st. 2 fit 1",30,3.0,183.0,100,0.,7.); - - new TH2F("h2815","P2 vs X EPH cut st. 2 fit 1",30,3.0,183.0,100,0.,0.05); - new TH2F("h2816","P2 vs X EAL cut st. 2 fit 1",30,3.0,183.0,100,0.,0.2); - //new TH2F("h2817","P2 vs X EXM cut st. 2 fit 1",30,3.0,183.0,100,0.,1.5); - new TH2F("h2817","P2 vs X EXM cut st. 2 fit 1",30,3.0,183.0,100,0.,5.); - new TH2F("h2818","P2 vs X EYM cut st. 2 fit 1",30,3.0,183.0,100,0.,7.); - - - new TH2F("h1111","dx vs x station 1",30,-250.,250.,30,-0.5,0.5); - new TH2F("h1112","dx vs x station 2",30,-250.,250.,30,-0.5,0.5); - new TH2F("h1113","dx vs x station 3",30,-250.,250.,30,-0.5,0.5); - new TH2F("h1114","dx vs x station 4",30,-250.,250.,30,-0.5,0.5); - new TH2F("h1115","dx vs x station 5",30,-250.,250.,30,-0.5,0.5); - new TH2F("h1121","dy vs y station 1",30,-250.,250.,30,-0.04,0.04); - new TH2F("h1122","dy vs y station 2",30,-250.,250.,30,-0.04,0.04); - new TH2F("h1123","dy vs y station 3",30,-250.,250.,30,-0.04,0.04); - new TH2F("h1124","dy vs y station 4",30,-250.,250.,30,-0.04,0.04); - new TH2F("h1125","dy vs y station 5",30,-250.,250.,30,-0.04,0.04); - - // fin de test - - new TH1F("h500","Acceptance en H st. 4",500,0.,500.); - new TH1F("h600","Acceptance en H st. 5",500,0.,500.); - new TH1F("h700","X vertex track found",200,-10.,10.); - new TH1F("h701","Y vertex track found",200,-10.,10.); - new TH1F("h800","Rap. muon gen.",100,0.,5.); - new TH1F("h801","Rap. muon gen. recons.",100,0.,5.); - new TH1F("h802","Rap. muon gen. ghost ",100,0.,5.); - new TH1F("h900","Pt muon gen.",100,0.,20.); - new TH1F("h901","Pt muon gen. recons.",100,0.,20.); - new TH1F("h902","Pt muon gen. ghost",100,0.,20.); - new TH1F("h910","phi muon gen.",100,-10.,10.); - new TH1F("h911","phi muon gen. recons.",100,-10.,10.); - new TH1F("h912","phi muon gen. ghost",100,-10.,10.); - new TH2F("h1001","Y VS X hit st. 1",300,-300.,300.,300,-300.,300.); - new TH2F("h1002","Y VS X hit st. 2",300,-300.,300.,300,-300.,300.); - new TH2F("h1003","Y VS X hit st. 3",300,-300.,300.,300,-300.,300.); - new TH2F("h1004","Y VS X hit st. 4",300,-300.,300.,300,-300.,300.); - new TH2F("h1005","Y VS X hit st. 5",300,-300.,300.,300,-300.,300.); - // Histos variance dans 4 - new TH2F("h11","VAR X st. 4",30,3.0,183.0,100,0.,2.); - new TH2F("h12","VAR Y st. 4",30,3.0,183.0,100,0.,600.); - new TH2F("h13","VAR PHI st. 4",30,3.0,183.0,100,0.,0.0001); - new TH2F("h14","VAR ALM st. 4",30,3.0,183.0,100,0.,0.05); - new TH1F("h15","P",30,3.0,183.0); - new TH1F("h411","VAR X st. 4",100,-1.42,1.42); - new TH1F("h412","VAR Y st. 4",100,-25.,25.); - new TH1F("h413","VAR PHI st. 4",100,-0.01,0.01); - new TH1F("h414","VAR ALM st. 4",100,-0.23,0.23); - // histo2 - new TH2F("h211","histo2-VAR X st. 4",30,3.0,183.0,100,0.,2.); - new TH2F("h212","histo2-VAR Y st. 4",30,3.0,183.0,100,0.,600.); - new TH1F("h213","histo2-VAR X st. 4",100,-1.42,1.42); - new TH1F("h214","histo2-VAR Y st. 4",100,-25.,25.); - new TH1F("h215","histo2-P",30,3.0,183.0); - - // Histos variance dans 2 - new TH2F("h21","VAR X st. 2",30,3.0,183.0,100,0.,3.); - new TH2F("h22","VAR Y st. 2",30,3.0,183.0,100,0.,7.); - new TH2F("h23","VAR PHI st. 2",30,3.0,183.0,100,0.,0.006); - new TH2F("h24","VAR ALM st. 2",30,3.0,183.0,100,0.,0.005); - new TH1F("h25","P",30,3.0,183.0); - new TH1F("h421","VAR X st. 2",100,-1.72,1.72); - new TH1F("h422","VAR Y st. 2",100,-2.7,2.7); - new TH1F("h423","VAR PHI st. 2",100,-0.08,0.08); - new TH1F("h424","VAR ALM st. 2",100,-0.072,0.072); - // histo2 - new TH2F("h221","histo2-VAR X st. 2",30,3.0,183.0,100,0.,3.); - new TH2F("h222","histo2-VAR Y st. 2",30,3.0,183.0,100,0.,7.); - new TH1F("h223","histo2-VAR X st. 2",100,-1.72,1.72); - new TH1F("h224","histo2-VAR Y st. 2",100,-2.7,2.7); - new TH1F("h225","histo2-P",30,3.0,183.0); - - // Histos variance dans 1 - new TH2F("h31","VAR X st. 1",30,3.0,183.0,100,0.,2.); - new TH2F("h32","VAR Y st. 1",30,3.0,183.0,100,0.,0.5); - new TH2F("h33","VAR PHI st. 1",30,3.0,183.0,100,0.,0.006); - new TH2F("h34","VAR ALM st. 1",30,3.0,183.0,100,0.,0.005); - new TH1F("h35","P",30,3.0,183.0); - new TH1F("h431","VAR X st. 1",100,-1.42,1.42); - new TH1F("h432","VAR Y st. 1",100,-0.72,0.72); - new TH1F("h433","VAR PHI st. 1",100,-0.08,0.08); - new TH1F("h434","VAR ALM st. 1",100,-0.072,0.072); - // Histos variance dans 1 - new TH2F("h41","VAR X st. 1 fit 5,4,3,2,V",30,3.0,183.0,100,0.,4.); - new TH2F("h42","VAR Y st. 1 fit 5,4,3,2,V",30,3.0,183.0,100,0.,20.); - new TH2F("h43","VAR PHI st. 1 fit 5,4,3,2,V",30,3.0,183.0,100,0.,0.005); - new TH2F("h44","VAR ALM st. 1 fit 5,4,3,2,V",30,3.0,183.0,100,0.,0.005); - new TH1F("h45","P",30,3.0,183.0); - new TH1F("h441","VAR X st. 1 fit 5,4,3,2,V",100,-2.,2.); - new TH1F("h442","VAR Y st. 1 fit 5,4,3,2,V",100,-4.5,4.5); - new TH1F("h443","VAR PHI st. 1 fit 5,4,3,2,V",100,-0.072,0.072); - new TH1F("h444","VAR ALM st. 1 fit 5,4,3,2,V",100,-0.072,0.072); - // histo2 - new TH2F("h241","histo2-VAR X st. 1 fit 5,4,3,2,V",30,3.0,183.0,100,0.,4.); - new TH2F("h242","histo2-VAR Y st. 1 fit 5,4,3,2,V",30,3.0,183.0,100,0.,20.); - new TH1F("h243","histo2-VAR X st. 1 fit 5,4,3,2,V",100,-2.,2.); - new TH1F("h244","histo2-VAR Y st. 1 fit 5,4,3,2,V",100,-4.5,4.5); - new TH1F("h245","histo2-P",30,3.0,183.0); - - // Histos variance dans 2 - new TH2F("h51","VAR X st. 2 fit 5,4,3,1,V",30,3.0,183.0,100,0.,0.5); - new TH2F("h52","VAR Y st. 2 fit 5,4,3,1,V",30,3.0,183.0,100,0.,2.); - new TH2F("h53","VAR PHI st. 2 fit 5,4,3,1,V",30,3.0,183.0,100,0.,0.005); - new TH2F("h54","VAR ALM st. 2 fit 5,4,3,1,V",30,3.0,183.0,100,0.,0.01); - new TH1F("h55","P",30,3.0,183.0); - new TH1F("h451","VAR X st. 2 fit 5,4,3,1,V",100,-0.72,0.72); - new TH1F("h452","VAR Y st. 2 fit 5,4,3,1,V",100,-1.42,1.42); - new TH1F("h453","VAR PHI st. 2 fit 5,4,3,1,V",100,-0.072,0.072); - new TH1F("h454","VAR ALM st. 2 fit 5,4,3,1,V",100,-0.1,0.1); - new TH1F("h999","PTOT",30,3.0,183.0); - // histo2 - new TH2F("h251","histo2-VAR X st. 2 fit 5,4,3,1,V",30,3.0,183.0,100,0.,0.5); - new TH2F("h252","histo2-VAR Y st. 2 fit 5,4,3,1,V",30,3.0,183.0,100,0.,2.); - new TH1F("h253","histo2-VAR X st. 2 fit 5,4,3,1,V",100,-0.72,0.72); - new TH1F("h254","histo2-VAR Y st. 2 fit 5,4,3,1,V",100,-1.42,1.42); - new TH1F("h255","histo2-P",30,3.0,183.0); - // Histos variance dans 3 - new TH2F("h61","VAR X st. 3 fit 4,5,V",30,3.0,183.0,100,0.,5.); - new TH2F("h62","VAR Y st. 3 fit 4,5,V",30,3.0,183.0,100,0.,2.); - new TH2F("h63","VAR PHI st. 3 fit 4,5,V",30,3.0,183.0,100,0.,0.0006); - new TH2F("h64","VAR ALM st. 3 fit 4,5,V",30,3.0,183.0,100,0.,0.0006); - new TH1F("h65","P",30,3.0,183.0); - new TH1F("h461","VAR X st. 3 fit 4,5,V",100,-2.25,2.25); - new TH1F("h462","VAR Y st. 3 fit 4,5,V",100,-1.42,1.42); - new TH1F("h463","VAR PHI st. 3 fit 4,5,V",100,-0.024,0.024); - new TH1F("h464","VAR ALM st. 3 fit 4,5,V",100,-0.024,0.024); - // histo2 - new TH2F("h261","histo2-VAR X st. 3 fit 4,5,V",30,3.0,183.0,100,0.,5.); - new TH2F("h262","histo2-VAR Y st. 3 fit 4,5,V",30,3.0,183.0,100,0.,2.); - new TH1F("h263","histo2-VAR X st. 3 fit 4,5,V",100,-2.25,2.25); - new TH1F("h264","histo2-VAR Y st. 3 fit 4,5,V",100,-1.42,1.42); - new TH1F("h265","Phisto2-",30,3.0,183.0); - // Histos dx,dy distribution between chambers inside stations - new TH1F("h71","DX in st. ID-70",100,-5.,5.); - new TH1F("h81","DY in st. ID-80",100,-5.,5.); - new TH1F("h72","DX in st. ID-70",100,-5.,5.); - new TH1F("h82","DY in st. ID-80",100,-5.,5.); - new TH1F("h73","DX in st. ID-70",100,-5.,5.); - new TH1F("h83","DY in st. ID-80",100,-5.,5.); - new TH1F("h74","DX in st. ID-70",100,-5.,5.); - new TH1F("h84","DY in st. ID-80",100,-5.,5.); - new TH1F("h75","DX in st. ID-70",100,-5.,5.); - new TH1F("h85","DY in st. ID-80",100,-5.,5.); + /// Compute the vertex resolution square from natural vertex dispersion and + /// multiple scattering effets according to trackCandidate path in absorber + /// It is necessary to account for multiple scattering effects here instead of during the fit of + /// the "trackCandidate" to do not influence the result by changing track resolution at vertex + AliDebug(1,"Enter SetVertexForFit"); + + Double_t nonBendingReso2 = AliMUONReconstructor::GetRecoParam()->GetNonBendingVertexDispersion() * + AliMUONReconstructor::GetRecoParam()->GetNonBendingVertexDispersion(); + Double_t bendingReso2 = AliMUONReconstructor::GetRecoParam()->GetBendingVertexDispersion() * + AliMUONReconstructor::GetRecoParam()->GetBendingVertexDispersion(); + + // add multiple scattering effets + AliMUONTrackParam paramAtVertex(*((AliMUONTrackParam*)(trackCandidate.GetTrackParamAtCluster()->First()))); + paramAtVertex.DeleteCovariances(); // to be sure to account only for multiple scattering + AliMUONTrackExtrap::ExtrapToVertexUncorrected(¶mAtVertex,0.); + const TMatrixD& kParamCov = paramAtVertex.GetCovariances(); + nonBendingReso2 += kParamCov(0,0); + bendingReso2 += kParamCov(2,2); + + // Set the vertex resolution square + trackCandidate.SetVertexErrXY2(nonBendingReso2,bendingReso2); } -//_____________________________________________________________________________ -void chfnt(Int_t &ievr, Int_t &ntrackr, Int_t *istatr, Int_t *isignr, Float_t *pxr, Float_t *pyr, Float_t *pzr, Float_t *zvr, Float_t *chi2r, Float_t *pxv, Float_t *pyv, Float_t *pzv) + //__________________________________________________________________________ +void AliMUONTrackReconstructor::Fit(AliMUONTrack &track, Bool_t includeMCS, Bool_t fitWithVertex, Bool_t calcCov) { - // - // fill the ntuple - NtupleSt.ievr = ievr; - NtupleSt.ntrackr = ntrackr; - for (Int_t i=0; i<500; i++) { - NtupleSt.istatr[i] = istatr[i]; - NtupleSt.isignr[i] = isignr[i]; - NtupleSt.pxr[i] = pxr[i]; - NtupleSt.pyr[i] = pyr[i]; - NtupleSt.pzr[i] = pzr[i]; - NtupleSt.zvr[i] = zvr[i]; - NtupleSt.chi2r[i] = chi2r[i]; - NtupleSt.pxv[i] = pxv[i]; - NtupleSt.pyv[i] = pyv[i]; - NtupleSt.pzv[i] = pzv[i]; + /// Fit the track + /// w/wo multiple Coulomb scattering according to "includeMCS". + /// w/wo constraining the vertex according to "fitWithVertex". + /// calculating or not the covariance matrix according to "calcCov". + + Double_t benC, errorParam, invBenP, nonBenC, x, y; + AliMUONTrackParam *trackParam; + Double_t arg[1], fedm, errdef, globalChi2; + Int_t npari, nparx; + Int_t status, covStatus; + + // Instantiate gMinuit if not already done + if (!gMinuit) gMinuit = new TMinuit(6); + // Clear MINUIT parameters + gMinuit->mncler(); + // Give the fitted track to MINUIT + gMinuit->SetObjectFit(&track); + if ((AliLog::GetDebugLevel("MUON","AliMUONTrackReconstructor") >= 2) || (AliLog::GetGlobalDebugLevel() >= 2)) { + // Define print level + arg[0] = 1; + gMinuit->mnexcm("SET PRI", arg, 1, status); + // Print covariance matrix + gMinuit->mnexcm("SHO COV", arg, 0, status); + } else { + arg[0] = -1; + gMinuit->mnexcm("SET PRI", arg, 1, status); + } + // No warnings + gMinuit->mnexcm("SET NOW", arg, 0, status); + // Define strategy + //arg[0] = 2; + //gMinuit->mnexcm("SET STR", arg, 1, status); + + // set flag w/wo multiple scattering according to "includeMCS" + track.FitWithMCS(includeMCS); + if (includeMCS) { + // compute cluster weights only once + if (!track.ComputeClusterWeights()) { + AliWarning("cannot take into account the multiple scattering effects"); + track.FitWithMCS(kFALSE); } - gAliNtupleGlobal->Fill(); -} - -//________________ -void hist_closed() -{ - // - // write histos and ntuple to "reconst.root" file - gAliFileGlobal->Write(); + } + + track.FitWithVertex(fitWithVertex); + if (fitWithVertex) SetVertexErrXY2ForFit(track); + + // Set fitting function + gMinuit->SetFCN(TrackChi2); + + // Set fitted parameters (!! The order is very important for the covariance matrix !!) + trackParam = (AliMUONTrackParam*) (track.GetTrackParamAtCluster()->First()); + // could be tried with no limits for the search (min=max=0) ???? + // mandatory limits in non Bending to avoid NaN values of parameters + gMinuit->mnparm(0, "X", trackParam->GetNonBendingCoor(), 0.03, -500.0, 500.0, status); + gMinuit->mnparm(1, "NonBenS", trackParam->GetNonBendingSlope(), 0.001, -0.5, 0.5, status); + // mandatory limits in Bending to avoid NaN values of parameters + gMinuit->mnparm(2, "Y", trackParam->GetBendingCoor(), 0.10, -500.0, 500.0, status); + gMinuit->mnparm(3, "BenS", trackParam->GetBendingSlope(), 0.001, -0.5, 0.5, status); + gMinuit->mnparm(4, "InvBenP", trackParam->GetInverseBendingMomentum(), 0.003, -0.4, 0.4, status); + + // minimization + gMinuit->mnexcm("MIGRAD", arg, 0, status); + + // Calculate the covariance matrix more accurately if required + if (calcCov) gMinuit->mnexcm("HESSE", arg, 0, status); + + // get results into "invBenP", "benC", "nonBenC" ("x", "y") + gMinuit->GetParameter(0, x, errorParam); + trackParam->SetNonBendingCoor(x); + gMinuit->GetParameter(1, nonBenC, errorParam); + trackParam->SetNonBendingSlope(nonBenC); + gMinuit->GetParameter(2, y, errorParam); + trackParam->SetBendingCoor(y); + gMinuit->GetParameter(3, benC, errorParam); + trackParam->SetBendingSlope(benC); + gMinuit->GetParameter(4, invBenP, errorParam); + trackParam->SetInverseBendingMomentum(invBenP); + + // global result of the fit + gMinuit->mnstat(globalChi2, fedm, errdef, npari, nparx, covStatus); + track.SetGlobalChi2(globalChi2); + + // Get the covariance matrix if required + if (calcCov) { + // Covariance matrix according to HESSE status + // If problem then keep only the diagonal terms (variances) + Double_t matrix[5][5]; + gMinuit->mnemat(&matrix[0][0],5); + if (covStatus == 3) trackParam->SetCovariances(matrix); + else trackParam->SetVariances(matrix); + } else trackParam->DeleteCovariances(); + } -//________________________________________________________________________ -void trackf_read_fit(Int_t &ievr, Int_t &nev, Int_t &nhittot1, Int_t *izch, Double_t *xgeant, Double_t *ygeant) + //__________________________________________________________________________ +void TrackChi2(Int_t & /*nParam*/, Double_t * /*gradient*/, Double_t &chi2, Double_t *param, Int_t /*flag*/) { - - // introduce aliroot variables in fortran common - // tracking study from geant hits - // - - AliMUON *pMUON = (AliMUON*) gAlice->GetModule("MUON"); - TTree *treeH = gAlice->TreeH(); - Int_t ntracks = (Int_t)treeH->GetEntries(); - cout<<"ntrack="<ResetHits(); - treeH->GetEvent(track); - - if (pMUON) { - -// Loop over hits - for(AliMUONHit* mHit=(AliMUONHit*)pMUON->FirstHit(-1); - mHit; - mHit=(AliMUONHit*)pMUON->NextHit()) - { - if (mHit->Chamber() > 10) continue; - Int_t ftrack = mHit->Track(); - Int_t id = gAlice->Particle(ftrack)->GetPdgCode(); - - if (id==kMuonPlus||id==kMuonMinus) { - xgeant[nhittot1] = mHit->Y(); - ygeant[nhittot1] = mHit->X(); - izch[nhittot1] = mHit->Chamber(); -// printf("id %d ch %d x %f y %f\n",id,izch[nhittot1],xgeant[nhittot1],ygeant[nhittot1]); - nhittot1++; - } - } // hit loop - } // if pMUON - } // track loop - - ievr=nev; - gAliFileGlobal->cd(); + /// Return the "Chi2" to be minimized with Minuit for track fitting. + /// Assumes that the trackParamAtCluster are sorted according to increasing Z. + /// Track parameters at each cluster are updated accordingly. + /// Vertex is used according to the flag "trackBeingFitted->GetFitWithVertex()". + /// Multiple Coulomb scattering is taken into account according to the flag "trackBeingFitted->GetFitWithMCS()". + + AliMUONTrack *trackBeingFitted = (AliMUONTrack*) gMinuit->GetObjectFit(); + AliMUONTrackParam* trackParamAtCluster = (AliMUONTrackParam*) trackBeingFitted->GetTrackParamAtCluster()->First(); + Double_t dX, dY; + chi2 = 0.; // initialize chi2 + + // update track parameters + trackParamAtCluster->SetNonBendingCoor(param[0]); + trackParamAtCluster->SetNonBendingSlope(param[1]); + trackParamAtCluster->SetBendingCoor(param[2]); + trackParamAtCluster->SetBendingSlope(param[3]); + trackParamAtCluster->SetInverseBendingMomentum(param[4]); + trackBeingFitted->UpdateTrackParamAtCluster(); + + // Take the vertex into account in the fit if required + if (trackBeingFitted->FitWithVertex()) { + Double_t nonBendingReso2,bendingReso2; + trackBeingFitted->GetVertexErrXY2(nonBendingReso2,bendingReso2); + if (nonBendingReso2 == 0. || bendingReso2 == 0.) chi2 += 1.e10; + else { + AliMUONTrackParam paramAtVertex(*trackParamAtCluster); + AliMUONTrackExtrap::ExtrapToZ(¶mAtVertex, 0.); // vextex position = (0,0,0) + dX = paramAtVertex.GetNonBendingCoor(); + dY = paramAtVertex.GetBendingCoor(); + chi2 += dX * dX / nonBendingReso2 + dY * dY / bendingReso2; + } + } + + // compute chi2 w/wo multiple scattering + chi2 += trackBeingFitted->ComputeGlobalChi2(trackBeingFitted->FitWithMCS()); + } -//______________________________________________________________________________ -void trackf_read_geant(Int_t *itypg, Double_t *xtrg, Double_t *ytrg, Double_t *ptotg, Int_t *idg, Int_t *izch, Double_t *pvert1g, Double_t *pvert2g, Double_t *pvert3g, Double_t *zvertg, Int_t &nhittot1, Double_t *cx, Double_t *cy, Double_t *cz, Int_t &ievr,Int_t &nev,Double_t *xgeant, Double_t *ygeant, Double_t *clsize1, Double_t *clsize2) + //__________________________________________________________________________ +void AliMUONTrackReconstructor::ComplementTracks(const AliMUONVClusterStore& clusterStore) { - // - // introduce aliroot variables in fortran common - // tracking study from geant hits - // - - AliMUON *pMUON = (AliMUON*) gAlice->GetModule("MUON"); + /// Complete tracks by adding missing clusters (if there is an overlap between + /// two detection elements, the track may have two clusters in the same chamber) + /// Re-fit track parameters and covariances + AliDebug(1,"Enter ComplementTracks"); - // TTree *treeK = gAlice->TreeK(); - TTree *treeH = gAlice->TreeH(); - Int_t ntracks = (Int_t)treeH->GetEntries(); - cout<<"ntrack="<GetSigmaCutForTracking() * + AliMUONReconstructor::GetRecoParam()->GetSigmaCutForTracking(); + Bool_t foundOneCluster, trackModified; + AliMUONVCluster* cluster; + AliMUONTrackParam *trackParam, *nextTrackParam, copyOfTrackParam, trackParamAtCluster, bestTrackParamAtCluster; -// -// Loop over tracks -// - - for (Int_t track=0; trackResetHits(); - treeH->GetEvent(track); + // Remove double track to complete only "good" tracks + RemoveDoubleTracks(); + + AliMUONTrack *track = (AliMUONTrack*) fRecTracksPtr->First(); + while (track) { + trackModified = kFALSE; + + trackParam = (AliMUONTrackParam*)track->GetTrackParamAtCluster()->First(); + while (trackParam) { + foundOneCluster = kFALSE; + bestChi2OfCluster = 2. * sigmaCut2; // 2 because 2 quantities in chi2 + chamberId = trackParam->GetClusterPtr()->GetChamberId(); + detElemId = trackParam->GetClusterPtr()->GetDetElemId(); - if (pMUON) { -// -// Loop over hits -// - for(AliMUONHit* mHit=(AliMUONHit*)pMUON->FirstHit(-1); - mHit; - mHit=(AliMUONHit*)pMUON->NextHit()) - { - if (maxidg<=20000) { - - if (mHit->Chamber() > 10) continue; - TParticle *particle; - Int_t ftrack = mHit->Track(); - Int_t id = gAlice->Particle(ftrack)->GetPdgCode(); - -// if (id==kMuonPlus||id==kMuonMinus) { - - // inversion de x et y car le champ est inverse dans le programme tracking - xtrg[maxidg] = 0; - ytrg[maxidg] = 0; - xgeant[maxidg] = mHit->Y(); // x-pos of hit - ygeant[maxidg] = mHit->X(); // y-pos of hit - clsize1[maxidg] = 0; // cluster size on 1-st cathode - clsize2[maxidg] = 0; // cluster size on 2-nd cathode - cx[maxidg] = mHit->Py(); // Px of hit - cy[maxidg] = mHit->Px(); // Py of hit - cz[maxidg] = mHit->Pz(); // Pz of hit - izch[maxidg] = mHit->Chamber(); - /* - Int_t pdgtype = Int_t(mHit->fParticle); // particle number - itypg[maxidg] = gMC->IdFromPDG(pdgtype); - */ - itypg[maxidg] = 0; - if (id==kMuonPlus) itypg[maxidg] = 5; - if (id==kMuonMinus) itypg[maxidg] = 6; - - //printf("ich, itypg[maxidg] %d %d\n",izch[maxidg],itypg[maxidg]); - - ptotg[maxidg] = mHit->Momentum(); // P of hit - - particle = gAlice->Particle(ftrack); - Float_t thet = particle->Theta(); - thet = thet*180./3.1416; - - //cout<<"chambre "<Particle(iparent)->GetPdgCode(); - - if (id2==443) id2=114; - else id2=116; - - if (id2==116) { - nres++; - } - //printf("id2 %d\n",id2); - idg[maxidg] = 30000*id1+10000*idum+id2; - - pvert1g[maxidg] = particle->Py(); // Px vertex - pvert2g[maxidg] = particle->Px(); // Py vertex - pvert3g[maxidg] = particle->Pz(); // Pz vertex - zvertg[maxidg] = particle->Vz(); // z vertex - - // cout<<"x="<GetTrackParamAtCluster()->After(trackParam); - if (gAliHits2) gAliHits2->Clear(); - gAliTrH1->GetEvent(track); - - // Loop over hits - AliMUONHit *mHit; - for (int i=0;iGetEntriesFast();i++) - { - mHit=(AliMUONHit*) (*gAliHits2)[i]; - if (mHit->Chamber() > 10) continue; - if (maxidg<=20000) { - - // inversion de x et y car le champ est inverse dans le programme tracking !!!! - xtrg[maxidg] = 0; // only for reconstructed point - ytrg[maxidg] = 0; // only for reconstructed point - xgeant[maxidg] = mHit->Y(); // x-pos of hit - ygeant[maxidg] = mHit->X(); // y-pos of hit - clsize1[maxidg] = 0; // cluster size on 1-st cathode - clsize2[maxidg] = 0; // cluster size on 2-nd cathode - cx[maxidg] = mHit->Py(); // Px of hit - cy[maxidg] = mHit->Px(); // Py of hit - cz[maxidg] = mHit->Pz(); // Pz of hit - izch[maxidg] = mHit->Chamber(); // chamber number - ptotg[maxidg] = mHit->Momentum(); // P of hit - - Int_t ftrack = mHit->Track(); - Int_t id1 = ftrack; // track number - Int_t idum = track+1; - - TClonesArray *fPartArray = gAliParticles2; -// TParticle *Part=NULL; - Int_t id = ((TParticle*) fPartArray->UncheckedAt(ftrack))->GetPdgCode(); - if (id==kMuonPlus||id==kMuonMinus) { - if (id==kMuonPlus) itypg[maxidg] = 5; - else itypg[maxidg] = 6; - } else itypg[maxidg]=0; - - Int_t id2=0; // set parent to 0 for background !! - idg[maxidg] = 30000*id1+10000*idum+id2; - - - pvert1g[maxidg] = 0; // Px vertex - pvert2g[maxidg] = 0; // Py vertex - pvert3g[maxidg] = 0; // Pz vertex - zvertg[maxidg] = 0; // z vertex - maxidg ++; - - } // check limits (maxidg) - } // hit loop - } // track loop - } // if gAliTrH1 - - ievr = nev; - nhittot1 = maxidg ; - cout<<"nhittot1="<=19) nbres++; - printf("nres, nbres %d %d \n",nres,nbres); - - gAliFileGlobal->cd(); - + // recover track parameters from local fit and put them into a copy of trackParam + copyOfTrackParam.SetZ(trackParam->GetZ()); + copyOfTrackParam.SetParameters(trackParam->GetSmoothParameters()); + copyOfTrackParam.SetCovariances(trackParam->GetSmoothCovariances()); + + // Create iterators to loop over clusters in current chamber + TIter nextInCh(clusterStore.CreateChamberIterator(chamberId,chamberId)); + + // look for one second candidate in the same chamber + while ( ( cluster = static_cast(nextInCh()) ) ) { + + // look for a cluster in another detection element + if (cluster->GetDetElemId() == detElemId) continue; + + // try to add the current cluster fast + if (!TryOneClusterFast(copyOfTrackParam, cluster)) continue; + + // try to add the current cluster accurately + chi2OfCluster = TryOneCluster(copyOfTrackParam, cluster, trackParamAtCluster); + + // if better chi2 then prepare to add this cluster to the track + if (chi2OfCluster < bestChi2OfCluster) { + bestChi2OfCluster = chi2OfCluster; + bestTrackParamAtCluster = trackParamAtCluster; + foundOneCluster = kTRUE; + } + + } + + // add new cluster if any + if (foundOneCluster) { + UpdateTrack(*track,bestTrackParamAtCluster); + bestTrackParamAtCluster.SetAloneInChamber(kFALSE); + trackParam->SetAloneInChamber(kFALSE); + trackModified = kTRUE; + } + + trackParam = nextTrackParam; + } + + // re-fit track parameters if needed + if (trackModified) Fit(*track, kTRUE, kFALSE, kTRUE); + + track = (AliMUONTrack*) fRecTracksPtr->After(track); + } + } -//________________________________________________________________________ -void trackf_read_spoint(Int_t *itypg, Double_t *xtrg, Double_t *ytrg, Double_t *ptotg, Int_t *idg, Int_t *izch, Double_t *pvert1g, Double_t *pvert2g, Double_t *pvert3g, Double_t *zvertg, Int_t &nhittot1, Double_t *cx, Double_t *cy, Double_t *cz, Int_t &ievr,Int_t &nev,Double_t *xgeant, Double_t *ygeant,Double_t *clsize1, Double_t *clsize2) - + //__________________________________________________________________________ +void AliMUONTrackReconstructor::ImproveTracks() { - // - // introduce aliroot variables in fortran common - // tracking study from reconstructed points - // - AliMUON *pMUON = (AliMUON*) gAlice->GetModule("MUON"); - - cout<<"numero de l'evenement "<TreeR(); - Int_t nent=(Int_t)treeR->GetEntries(); - if (nev < 10) - printf("Found %d entries in the tree (must be one per cathode per event! + 1empty)\n", - nent); -// + /// Improve tracks by removing clusters with local chi2 highter than the defined cut + /// Recompute track parameters and covariances at the remaining clusters + AliDebug(1,"Enter ImproveTracks"); + + Double_t localChi2, worstLocalChi2; + Int_t worstChamber, previousChamber; + AliMUONTrack *track, *nextTrack; + AliMUONTrackParam *trackParamAtCluster, *worstTrackParamAtCluster, *previousTrackParam, *nextTrackParam; + Double_t sigmaCut2 = AliMUONReconstructor::GetRecoParam()->GetSigmaCutForImprovement() * + AliMUONReconstructor::GetRecoParam()->GetSigmaCutForImprovement(); + + // Remove double track to improve only "good" tracks + RemoveDoubleTracks(); + + track = (AliMUONTrack*) fRecTracksPtr->First(); + while (track) { - Int_t mult1, mult2; + // prepare next track in case the actual track is suppressed + nextTrack = (AliMUONTrack*) fRecTracksPtr->After(track); - if (pMUON) { - Int_t mpoi=0; - for (Int_t ich=0;ich<10;ich++) { - printf("chambre %d\n",ich+1); - TClonesArray *reconstPoints = pMUON->RawClustAddress(ich); - - pMUON->ResetRawClusters(); - treeR->GetEvent(nent-1); - Int_t npoints = (Int_t) reconstPoints->GetEntries(); - if (!npoints) continue; - printf("\n ch %d npoints = %d\n",ich+1,npoints); - // Loop over reconstruted points - for (Int_t ipoi=0; ipoiUncheckedAt(ipoi); - - mult1=point->fMultiplicity[0]; - mult2=point->fMultiplicity[1]; - xtrg[mpoi]=(Double_t) point->fY[0]; - ytrg[mpoi]=(Double_t) point->fX[0]; - izch[mpoi]=ich+1; - Int_t itrack = point->fTracks[1]; - Int_t ihit = point->fTracks[0]; - xgeant[mpoi] = 0; - ygeant[mpoi] = 0; - clsize1[mpoi] = mult1; - clsize2[mpoi] = mult2; - Int_t id1, id2, idum; - id1=id2=idum=-1; - itypg[mpoi]=0; - ihit = ihit-1; - if (ihit >=0 && itrack >=0) { - gAlice->ResetHits(); - gAlice->TreeH()->GetEvent(itrack); - TClonesArray *pMUONhits = pMUON->Hits(); - AliMUONHit* mHit; - mHit=(AliMUONHit*) (pMUONhits->UncheckedAt(ihit)); - Int_t id = (Int_t) mHit->Particle(); - xgeant[mpoi] = mHit->Y(); - ygeant[mpoi] = mHit->X(); - if (id == kMuonPlus) itypg[mpoi]=5; - if (id == kMuonMinus) itypg[mpoi]=6; - TParticle *particle; - particle = gAlice->Particle(mHit->Track()); - TParticle* particleM=gAlice->Particle(particle->GetFirstMother()); - Int_t iparent=particleM->GetPdgCode(); - printf("\n Particle Id:%d %d \n", id, iparent); - if (iparent == 443) id2=114; - if (iparent == 553) id2=116; - } - id1=itrack; - idum=itrack+1; - idg[mpoi] = 30000*id1+10000*idum+id2; - mpoi++; - } // loop over points - } // loop over chamber - ievr = nev; - cout<<"evenement "<mnseti('track fitting'); - - gMinuit->mnparm(0, "invmom", pest[0], pstep[0], -c[0], c[0], ierflg); - gMinuit->mnparm(1, "azimuth", pest[1], pstep[1], -c[1], c[1], ierflg); - gMinuit->mnparm(2, "deep", pest[2], pstep[2], -c[2], c[2], ierflg); - if (ivertex==1) { - gMinuit->mnparm(3, "x ", pest[3], pstep[3], -c[3], c[3], ierflg); - gMinuit->mnparm(4, "y ", pest[4], pstep[4], -c[4], c[4], ierflg); - } - - gMinuit->mnexcm("SET NOGR", arglist, 0, ierflg); - gMinuit->mnexcm("MINIMIZE", arglist, 0, ierflg); - gMinuit->mnexcm("EXIT" , arglist, 0, ierflg); - - gMinuit->mnpout(0, chname, pxzinv, epxz, b1, b2, ierflg); - gMinuit->mnpout(1, chname, tphi, efi, b1, b2, ierflg); - gMinuit->mnpout(2, chname, talam, exs, b1, b2, ierflg); - if (ivertex==1) { - gMinuit->mnpout(3, chname, xvert, exvert, b1, b2, ierflg); - gMinuit->mnpout(4, chname, yvert, eyvert, b1, b2, ierflg); - } - - delete gMinuit; -} - -//________________________________________________________________________________ -void fcnf(Int_t &npar, Double_t *grad, Double_t &fval, Double_t *pest, Int_t iflag) -{ - // - // function called by trackf_fit - Int_t futil = 0; - fcn(npar,grad,fval,pest,iflag,futil); -} - -//____________________________________________________________________________ -void prec_fit(Double_t &pxzinv, Double_t &fis, Double_t &alams, Double_t &xvert, Double_t &yvert, Double_t &pxzinvf, Double_t &fif, Double_t &alf, Double_t &xvertf, Double_t &yvertf, Double_t &epxzinv, Double_t &efi, Double_t &exs, Double_t &exvert, Double_t &eyvert) -{ - // - // minuit fits for tracking finding - - static Double_t arglist[10]; - static Double_t c1[5] = {0.001, 0.001, 0.001, 1., 1.}; - static Double_t c2[5] = {0.5, 0.5, 0.5, 120., 120.}; - static Double_t emat[9]; - static Double_t b1, b2; - Double_t fmin, fedm, errdef; - Int_t npari, nparx, istat; - - TString chname; - Int_t ierflg = 0; + if (worstChamber%2 == 0) { // Modify flags in next chamber + + nextTrackParam->SetRemovable(kFALSE); + if (!nextTrackParam->IsAloneInChamber()) // Make sure both clusters in second chamber are not removable anymore + ((AliMUONTrackParam*) track->GetTrackParamAtCluster()->After(nextTrackParam))->SetRemovable(kFALSE); + + } else { // Modify flags in previous chamber + + previousTrackParam->SetRemovable(kFALSE); + if (!previousTrackParam->IsAloneInChamber()) // Make sure both clusters in second chamber are not removable anymore + ((AliMUONTrackParam*) track->GetTrackParamAtCluster()->Before(previousTrackParam))->SetRemovable(kFALSE); + + } + + } else { // Worst cluster not alone in its chamber + + if (previousTrackParam) previousChamber = previousTrackParam->GetClusterPtr()->GetChamberId(); + else previousChamber = -1; + + if (previousChamber == worstChamber) { // the second cluster on the same chamber is the previous one + + previousTrackParam->SetAloneInChamber(kTRUE); + // transfert the removability to the second cluster + if (worstTrackParamAtCluster->IsRemovable()) previousTrackParam->SetRemovable(kTRUE); + + } else { // the second cluster on the same chamber is the next one + + nextTrackParam->SetAloneInChamber(kTRUE); + // transfert the removability to the second cluster + if (worstTrackParamAtCluster->IsRemovable()) nextTrackParam->SetRemovable(kTRUE); + + } + + } - TMinuit *gMinuit = new TMinuit(5); - gMinuit->mninit(5,10,7); - gMinuit->SetFCN(fcnfitf); - - arglist[0] = -1.; - gMinuit->mnexcm("SET PRINT", arglist, 1, ierflg); + // Remove the worst cluster + track->RemoveTrackParamAtCluster(worstTrackParamAtCluster); - // gMinuit->mnseti('track fitting'); - - gMinuit->mnparm(0,"invmom", pxzinv, c1[0], -c2[0], c2[0], ierflg); // 0.003, 0.5 - gMinuit->mnparm(1,"azimuth ", fis, c1[1], -c2[1], c2[1], ierflg); - gMinuit->mnparm(2,"deep ", alams, c1[2], -c2[2], c2[2], ierflg); - gMinuit->mnparm(3,"xvert", xvert, c1[3], -c2[3], c2[3], ierflg); - gMinuit->mnparm(4,"yvert", yvert, c1[4], -c2[4], c2[4], ierflg); - - gMinuit->mnexcm("SET NOGR", arglist, 0, ierflg); - arglist[0] = 2.; - gMinuit->mnexcm("MINIMIZE", arglist, 0, ierflg); - gMinuit->mnexcm("EXIT", arglist, 0, ierflg); - - gMinuit->mnpout(0, chname, pxzinvf, epxzinv, b1, b2, ierflg); - gMinuit->mnpout(1, chname, fif, efi, b1, b2, ierflg); - gMinuit->mnpout(2, chname, alf, exs, b1, b2, ierflg); - gMinuit->mnpout(3, chname, xvertf, exvert, b1, b2, ierflg); - gMinuit->mnpout(4, chname, yvertf, eyvert, b1, b2, ierflg); - - gMinuit->mnemat(emat, 3); - gMinuit->mnstat(fmin, fedm, errdef, npari, nparx, istat); - - delete gMinuit; + // Re-fit the track: + // Take into account the multiple scattering + // Calculate the track parameter covariance matrix + Fit(*track, kTRUE, kFALSE, kTRUE); + + // Printout for debuging + if ((AliLog::GetDebugLevel("MUON","AliMUONTrackReconstructor") >= 1) || (AliLog::GetGlobalDebugLevel() >= 1)) { + cout << "ImproveTracks: track " << fRecTracksPtr->IndexOf(track)+1 << " improved " << endl; + } + + } + + track = nextTrack; + } + + // compress the array in case of some tracks have been removed + fRecTracksPtr->Compress(); + } -//____________________________________________________________________ -void fcnfitf(Int_t &npar, Double_t *grad, Double_t &fval, Double_t *xval, Int_t iflag) + //__________________________________________________________________________ +void AliMUONTrackReconstructor::Finalize() { - // - // function called by prec_fit - Int_t futil = 0; - fcnfit(npar,grad,fval,xval,iflag,futil); + /// Recompute track parameters and covariances at each attached cluster from those at the first one + + AliMUONTrack *track; + + track = (AliMUONTrack*) fRecTracksPtr->First(); + while (track) { + + // update track parameters if not already done + if (!track->IsImproved()) track->UpdateCovTrackParamAtCluster(); + + track = (AliMUONTrack*) fRecTracksPtr->After(track); + + } + } +