* provided "as is" without express or implied warranty. *
**************************************************************************/
-#include "AliRICH.h"
-#include "AliRICHRecon.h"
-#include "AliRICHParam.h"
-#include <AliLoader.h>
-#include <AliStack.h>
-#include <Riostream.h>
-#include <TCanvas.h>
-#include <TParticle.h>
-#include <TStyle.h>
-#include <TF1.h>
-#include <TH2.h>
-#include <TMath.h>
-#include <TRandom.h>
-#include <TMinuit.h>
-#include <TNtuple.h>
+//////////////////////////////////////////////////////////////////////////
+// //
+// AliRICHRecon //
+// //
+// RICH class to perfom pattern recognition based on Hough transfrom //
+// for single chamber //
+//////////////////////////////////////////////////////////////////////////
+
+#include "AliRICHRecon.h" //class header
#include <TMath.h>
-#include <TGraph.h>
-#include <TLine.h>
-#include <TPolyLine.h>
-#include <TMarker.h>
-#include <TText.h>
-#include <TProfile.h>
#include <TRotation.h>
-#include <TSystem.h>
#include <TVector3.h>
-#include <TEventList.h>
-
-#define NPointsOfRing 201
-
-// Geometry of the RICH at Star...
-
-static const Int_t nPadX = AliRICHParam::NpadsY();
-static const Int_t nPadY = AliRICHParam::NpadsX();
-static const Float_t PadSizeX = AliRICHParam::PadSizeY();
-static const Float_t PadSizeY = AliRICHParam::PadSizeX();
-static const Float_t spacer = AliRICHParam::DeadZone();
-static const Float_t degree = 180/3.1415926535;
-
-static const Float_t pi = TMath::Pi();
-
-static const Float_t RadiatorWidth = AliRICHParam::FreonThickness();
-static const Float_t QuartzWidth = AliRICHParam::QuartzThickness();
-static const Float_t GapWidth = AliRICHParam::RadiatorToPads();
-
-static const Float_t fDTheta = 0.001; // Step for sliding window
-//static const Float_t fWindowWidth = 0.040; // Hough width of sliding window
-static const Float_t fWindowWidth = 0.060; // Hough width of sliding window
-
-static const Int_t fThetaBin = 750; // Hough bins
-static const Float_t fThetaMin = 0.0; // Theta band min
-static const Float_t fThetaMax = 0.75; // Theta band max
-
-static const Float_t Xmin = -AliRICHParam::PcSizeY()/2.;
-static const Float_t Xmax = AliRICHParam::PcSizeY()/2.;
-static const Float_t Ymin = -AliRICHParam::PcSizeX()/2.;
-static const Float_t Ymax = AliRICHParam::PcSizeX()/2.;
-
-
-// Global variables...
-
-Bool_t fDebug = kFALSE;
-Bool_t kDISPLAY = kFALSE;
-Bool_t kWEIGHT = kFALSE;
-Bool_t kBACKGROUND = kFALSE;
-Bool_t kMINIMIZER = kFALSE;
-//
-
-Int_t TotEvents = 0;
-
-static Float_t xGraph[3000],yGraph[3000];
-
-static Int_t NRings = 0;
-static Int_t NevTOT = 0;
-
-TMinuit *gMyMinuit ;
-
-void fcn(Int_t &npar, Double_t *gin, Double_t &f, Double_t *par, Int_t iflag);
-
-// Float_t fEmissionPoint;
-// Float_t fTrackTheta;
-// Float_t fTrackPhi;
-// Float_t fXtoentr;
-// Float_t fYtoentr;
-
-//
-
-TFile *outputfile;
-
-TH1F *h1_photons,*h1_photacc,*h1_hough;
-TH2F *h2_tvsppos, *h2_tvspneg,*h2_func;
-
-TH2F *h2_disp;
-
-TH2F *h2_test1, *h2_test2, *h2_test4, *h2_testmap;
-TH2F *h2_dist_p;
-
-TH1F *h1_photons1, *h1_photons2;
-TH1F *h1_houghpos, *h1_houghneg;
-TH1F *h1_mass;
-TH2F *h2_mvsp;
-
-TH1F *h1_hcs, *h1_hcsw;
-
-TH1F *h1_nprotons;
-
-TProfile *hp_1pos, *hp_1neg;
-TProfile *hp_1posnorm, *hp_1negnorm;
-TH2F *h2_1pos, *h2_1neg;
-TH2F *h2_1posnorm, *h2_1negnorm;
-TH2F *h2_mvst;
-
-TH1F *h1_deltap, *h1_deltapop;
-TH1F *h1_diffTrackTheta, *h1_diffTrackPhi;
-TH1F *h1_photaccspread;
-
-TH2F *h2_diffpos, *h2_diffneg;
-TH2F *h2_map, *h2_mapw;
-
-TH1F *photris;
-
-TNtuple *hn;
-
-TCanvas *StarCanvas,*Display,*Displayhcs;
-TGraph *gra;
-TLine *line;
-TPolyLine *poll;
-TPolyMarker *polm;
-TMarker *Point, *TrackPoints, *Photon, *PhotonAcc;
-TText *text;
-
-AliRICHRecon::AliRICHRecon(const char*, const char*)
-{
-
- fRich = (AliRICH*)gAlice->GetDetector("RICH");
-
-}
-
-void AliRICHRecon::InitRecon()
-{
-
- outputfile = new TFile("Anal.root","RECREATE","My Analysis histos");
- if(kDISPLAY) Display = new TCanvas("Display","RICH Display",0,0,1200,750);
-
- h1_photons = new TH1F("h1_photons","photons",750,0.,0.75);
- h1_photacc = new TH1F("h1_photacc","photons",750,0.,0.75);
- h1_hough = new TH1F("h1_hough","hough",750,0.,0.75);
- h1_houghpos= new TH1F("h1_houghpos","hough",750,0.,0.75);
- h1_houghneg= new TH1F("h1_houghneg","hough",750,0.,0.75);
-
- h2_tvsppos = new TH2F("h2_tvsppos","thetac vs p",100,0.,5.,750,0.,0.75);
- h2_tvspneg = new TH2F("h2_tvspneg","thetac vs p",100,0.,5.,750,0.,0.75);
- h2_func = new TH2F("h2_func"," func ",800,0.,0.8,100,-100.,100.);
- h2_mvsp = new TH2F("h2_mvsp","mass vs p",100,0.,5.,200,0.,2.);
- h2_mvst = new TH2F("h2_mvst","mass vs t",750,0.,0.75,200,0.,2.);
- h2_map = new TH2F("h2_map","h2_map",160,0.,160.,96,0.,96.);
- h2_mapw = new TH2F("h2_mapw","h2_mapw",160,0.,160.,96,0.,96.);
-
- h2_dist_p = new TH2F("h2_dist_p","h2_dist_p",100,0.,5.,100,0.,5.);
- //
-
- h2_disp = new TH2F("h2_disp","STAR-RICH Event Display",165,Xmin,Xmax,100,Ymin,Ymax);
-
- // h2_test1 = new TH2F("h2_test1","test1 map",165,-64.,64.,100,-42.,42.);
- h2_test2 = new TH2F("h2_test2","test2 map",165,-64.,64.,100,-42.,42.);
- // h2_test4 = new TH2F("h2_test4","test4 map",165,-64.,64.,100,-42.,42.);
- h2_testmap= new TH2F("h2_testmap","test map",165,-64.,64.,100,-42.,42.);
-
- //
- h1_photons1 = new TH1F("h1_photons1","photons",750,0.,0.75);
- h1_photons2 = new TH1F("h1_photons2","photons",750,0.,0.75);
- //
- h1_hcs = new TH1F("h1_hcs","hcs",750,0.,750.);
- h1_hcsw = new TH1F("h1_hcsw","hcsw",750,0.,750.);
- //
- h1_nprotons = new TH1F("h1_nprotons","n prot",30,0.,30.);
- //
- hp_1pos = new TProfile("hp_1pos","Nphot vs thetac pos",250,0.,0.75);
- hp_1neg = new TProfile("hp_1neg","Nphot vs thetac neg",250,0.,0.75);
- hp_1posnorm = new TProfile("hp_1posnorm","Nphot vs thetac pos norm",250,0.,0.75);
- hp_1negnorm = new TProfile("hp_1negnorm","Nphot vs thetac neg norm",250,0.,0.75);
- //
- h2_1pos = new TH2F("h2_1pos","Nphot vs p pos",100,0.,5.,30,0.,30.);
- h2_1neg = new TH2F("h2_1neg","Nphot vs p neg",100,0.,5.,30,0.,30.);
- h2_1posnorm = new TH2F("h2_1posnorm","Nphot vs p pos norm",100,0.,5.,30,0.,30.);
- h2_1negnorm = new TH2F("h2_1negnorm","Nphot vs p neg norm",100,0.,5.,30,0.,30.);
-
- h1_deltap = new TH1F("h1_deltap","delta_p",200,-0.5,0.5);
- h1_deltapop = new TH1F("h1_deltapop","deltapop",200,-1.,1.);
- h1_diffTrackTheta = new TH1F("h1_diffTrackTheta","delta theta",200,-0.25,0.25);
- h1_diffTrackPhi = new TH1F("h1_diffTrackPhi","delta phi",200,-0.25,0.25);
-
- h1_photaccspread = new TH1F("h1_photaccspread","photons spread",200,-0.1,0.1);
-
- //
-
- h1_mass = new TH1F("h1_mass","mass",200,0.,2.);
- photris = new TH1F("photris","photris",1000,0.,1.);
- h2_diffneg = new TH2F("h2_diffneg","diff neg",100,-2.5,2.5,100,-2.5,2.5);
- h2_diffpos = new TH2F("h2_diffpos","diff pos",100,-2.5,2.5,100,-2.5,2.5);
-
- hn = new TNtuple("hn","ntuple",
-"Run:Trig:VertZ:Pmod:Pt:Eta:TrackTheta:TrackPhi:TrackThetaFit:TrackPhiFit:Charge:ThetaCerenkov:NPhotons:NPhotonsFit:InRing:MassOfParticle:HoughArea:Multiplicity:TPCLastZ");
-}
-
-void AliRICHRecon::StartProcessEvent()
-{
-
- Float_t TrackThetaStored = 0;
- Float_t TrackPhiStored = 0;
- Float_t ThetaCerenkovStored = 0;
- Int_t HoughPhotonsStored = 0;
-
- SetFreonScaleFactor(0.994);
-
- if(kDISPLAY)
- {
- DrawEvent(0);
-// waiting();
- }
-
- Rich()->GetLoader()->LoadHits();
- Rich()->GetLoader()->LoadRecPoints();
- Rich()->GetLoader()->LoadDigits();
- gAlice->GetRunLoader()->LoadHeader();
- gAlice->GetRunLoader()->LoadKinematics();
-
- Rich()->GetLoader()->TreeR()->GetEntry(0);
-
- Float_t clusX[7][500],clusY[7][500];
- Int_t clusQ[7][500];
- Int_t nClusters[7];
-
- for (Int_t ich=0;ich<7;ich++) {
- nClusters[ich] = Rich()->ClustersOld(ich+1)->GetEntries();
- for(Int_t k=0;k<nClusters[ich];k++) {
- AliRICHRawCluster *pCluster = (AliRICHRawCluster *)Rich()->ClustersOld(ich+1)->At(k);
- clusX[ich][k] = pCluster->fX;
- clusY[ich][k] = pCluster->fY;
- clusQ[ich][k] = pCluster->fQ;
- pCluster->Print();
- }
- }
-
- Int_t nPrimaries = (Int_t)Rich()->GetLoader()->TreeH()->GetEntries();
-
- for(Int_t i=0;i<nPrimaries;i++){
-
- Rich()->GetLoader()->TreeH()->GetEntry(i);
-
- Int_t iPrim = 0;
-
- AliRICHhit* pHit=0;
-
- for(Int_t j=0;j<Rich()->Hits()->GetEntries();j++) {
-
- pHit = (AliRICHhit*)Rich()->Hits()->At(j);
- if(pHit->GetTrack() > nPrimaries) continue;
- iPrim++;
- }
-
- if(iPrim>1) Fatal("StartProcessEvent"," more than 1 prim to hit!!! = %3i", iPrim);
- TParticle *pParticle = gAlice->GetRunLoader()->Stack()->Particle(pHit->GetTrack());
- Float_t pmod = pParticle->P();
- Float_t pt = pParticle->Pt();
- Float_t TrackEta = pParticle->Eta();
- Int_t q = (Int_t)TMath::Sign(1.,pParticle->GetPDG()->Charge());
-
- SetTrackMomentum(pmod);
- SetTrackPt(pt);
- SetTrackEta(TrackEta);
- SetTrackCharge(q);
-
- TVector3 pGlob(pHit->MomFreoX(),pHit->MomFreoY(),pHit->MomFreoZ());
- TVector3 pLocal = Rich()->C(pHit->Chamber())->G2Lvector(pGlob);
-
- Float_t primGlobalX = pHit->X();
- Float_t primGlobalY = pHit->Y();
- Float_t primGlobalZ = pHit->Z();
- TVector3 primGlobal(primGlobalX,primGlobalY,primGlobalZ);
- TVector3 primLocal = Rich()->C(pHit->Chamber())->G2L(primGlobal);
-
-// Float_t pmodFreo = pLocal.Mag();
- Float_t TrackTheta = pLocal.Theta();
- Float_t TrackPhi = pLocal.Phi();
-
- SetTrackTheta(TrackTheta);
- SetTrackPhi(TrackPhi);
-
- Int_t MaxInd = 0;
- Float_t MinDist = 999.;
-
- for(Int_t j=0;j<nClusters[pHit->Chamber()];j++)
- {
- Float_t diffx = primLocal.X() - clusX[pHit->Chamber()][j];
- Float_t diffy = primLocal.Y() - clusY[pHit->Chamber()][j];
-
- Float_t diff = sqrt(diffx*diffx + diffy*diffy);
-
- if(diff < MinDist)
- {
- MinDist = diff;
- MaxInd = j;
- }
-
- }
-
- Float_t diffx = primLocal.X() - clusX[pHit->Chamber()][MaxInd];
- Float_t diffy = primLocal.Y() - clusY[pHit->Chamber()][MaxInd];
-
- if(q>0)
- {
- h2_diffpos->Fill(diffx,diffy);
- } else {
- h2_diffneg->Fill(diffx,diffy);
- }
-
- SetMipIndex(MaxInd);
- SetTrackIndex(i);
-
- Float_t ShiftX = primLocal.X()/primLocal.Z()*(RadiatorWidth+QuartzWidth+GapWidth) + primLocal.X();
- Float_t ShiftY = primLocal.Y()/primLocal.Z()*(RadiatorWidth+QuartzWidth+GapWidth) + primLocal.Y();
-
- SetShiftX(ShiftX);
- SetShiftY(ShiftY);
-
- Float_t *pclusX = &clusX[pHit->Chamber()][0];
- Float_t *pclusY = &clusY[pHit->Chamber()][0];
-
- SetCandidatePhotonX(pclusX);
- SetCandidatePhotonY(pclusY);
- SetCandidatePhotonsNumber(nClusters[pHit->Chamber()]);
-
- Int_t qch = clusQ[pHit->Chamber()][MaxInd];
-
- if(MinDist < 3.0 && qch > 120 && MaxInd !=0)
- {
-
- if(kBACKGROUND)
- {
-
- Float_t Xrndm = Xmin + (Xmax-Xmin)*gRandom->Rndm(280964);
- Float_t Yrndm = Ymin + (Ymax-Ymin)*gRandom->Rndm(280964);
-
- cout << " Xrndm " << Xrndm << " Yrndm " << Yrndm << endl;
-
- SetShiftX(Xrndm);
- SetShiftY(Yrndm);
-
- }
-
- PatRec();
-
- TrackThetaStored = GetTrackTheta();
- TrackPhiStored = GetTrackPhi();
- ThetaCerenkovStored = GetThetaCerenkov();
- HoughPhotonsStored = GetHoughPhotons();
-
- Int_t DiffNPhotons = 999;
- Int_t Nsteps = 0;
- Float_t DiffTrackTheta = 999.;
- Float_t DiffTrackPhi = 999.;
+#include <TH1F.h>
- while( kMINIMIZER && GetHoughPhotons() > 2
- && DiffNPhotons !=0
- && DiffTrackTheta > 0.0001
- && Nsteps < 10)
- {
-
- Int_t HoughPhotonsBefore = GetHoughPhotons();
-
- Float_t TrackThetaBefore = GetTrackTheta();
- Float_t TrackPhiBefore = GetTrackPhi();
-
- Minimization();
-
- PatRec();
-
- DiffNPhotons = abs(HoughPhotonsBefore - GetHoughPhotons());
-
- Float_t TrackThetaAfter = GetTrackTheta();
- Float_t TrackPhiAfter = GetTrackPhi();
-
- DiffTrackTheta = TMath::Abs(TrackThetaAfter - TrackThetaBefore);
- DiffTrackPhi = TMath::Abs(TrackPhiAfter - TrackPhiBefore);
-
- if(fDebug)
- cout << " HoughPhotonsBefore " << HoughPhotonsBefore
- << " GetHoughPhotons() " << GetHoughPhotons();
-
- Nsteps++;
- }
-
- SetFittedThetaCerenkov(GetThetaCerenkov());
- SetFittedHoughPhotons(GetHoughPhotons());
-
- SetTrackTheta(TrackThetaStored);
- SetTrackPhi(TrackPhiStored);
- SetThetaCerenkov(ThetaCerenkovStored);
- SetHoughPhotons(HoughPhotonsStored);
-
- SetMinDist(MinDist);
-
- FillHistograms();
-
- if(kDISPLAY) DrawEvent(1);
-
- waiting();
-
- }
- }
- //
- if(kDISPLAY) Display->Print("display.ps");
-}
+#include "AliRICHCluster.h" //ThetaCerenkov()
+#include "AliRICHParam.h"
+#include "AliRICHHelix.h" //ThetaCerenkov()
+#include <AliLog.h>
+#define NPointsOfRing 201
-void AliRICHRecon::EndProcessEvent()
+//__________________________________________________________________________________________________
+AliRICHRecon::AliRICHRecon()
+ :TTask ("RichRec","RichPat")
{
-// function called at the end of the event loop
-
- printf("Processed events: %d Total events: %d \n",TotEvents,NevTOT);
-
- outputfile->Write();
- outputfile->Close();
+// main ctor
+ fThetaMin = 0.0; fThetaMax = 0.75;
+ fDTheta = 0.001; fWindowWidth = 0.045;
+ fMinNumPhots = 3;
+ fParam=AliRICHParam::Instance(); //get the pointer to AliRICHParam
}
-
-void AliRICHRecon::PatRec()
+//__________________________________________________________________________________________________
+Double_t AliRICHRecon::ThetaCerenkov(AliRICHHelix *pHelix,TClonesArray *pClusters,Int_t &iMipId)
{
-
- Float_t TrackTheta = GetTrackTheta();
- Float_t TrackPhi = GetTrackPhi();
- Float_t pmod = GetTrackMomentum();
- // Int_t q = GetTrackCharge();
-
- // Int_t TrackIndex = GetTrackIndex();
- Int_t MipIndex = GetMipIndex();
-
- Bool_t kPatRec = kFALSE;
-
- Int_t CandidatePhotons = 0;
-
- Float_t ShiftX = GetShiftX();
- Float_t ShiftY = GetShiftY();
-
- Float_t* CandidatePhotonX = GetCandidatePhotonX();
- Float_t* CandidatePhotonY = GetCandidatePhotonY();
-
- Int_t CandidatePhotonsNumber = GetCandidatePhotonsNumber();
-
- if(fDebug) cout << " n " << CandidatePhotonsNumber << endl;
-
- SetThetaCerenkov(999.);
- SetHoughPhotons(0);
- SetHoughPhotonsNorm(0);
- SetHoughRMS(999.);
-
- for (Int_t j=0; j < CandidatePhotonsNumber; j++)
- {
-
- SetPhotonIndex(j);
-
- SetPhotonFlag(0);
- SetPhotonEta(-999.);
- SetPhotonWeight(0.);
-
- if (j == MipIndex) continue;
-
- // h2_test1->Fill(CandidatePhotonX[j],CandidatePhotonY[j]);
-
- if(CandidatePhotonX[j] < -64.) continue; /* avoid artificial clusters from edge uesd by Yale.... */
-
- Float_t Xtoentr = CandidatePhotonX[j] - ShiftX;
- Float_t Ytoentr = CandidatePhotonY[j] - ShiftY;
-
- // Float_t chargehit = fHits_charge[j];
- // if(chargehit > 150) continue;
-
- SetEntranceX(Xtoentr);
- SetEntranceY(Ytoentr);
-
- FindPhiPoint();
-
- Int_t PhotonStatus = PhotonInBand();
-
- if(fDebug)
- {
- cout << " Photon n. " << j << " Status " << PhotonStatus << " accepted " << endl;
- cout << " CandidatePhotonX[j] " << CandidatePhotonX[j] << " CandidatePhotonY[j] " << CandidatePhotonY[j] << endl;
- }
-
- if(PhotonStatus == 0) continue;
-
- SetPhotonFlag(1);
-
- FindThetaPhotonCerenkov();
-
- Float_t ThetaPhotonCerenkov = GetThetaPhotonCerenkov();
-
- if(fDebug) cout << " theta photon " << ThetaPhotonCerenkov << endl;
-
- SetPhotonEta(ThetaPhotonCerenkov);
-
- CandidatePhotons++;
-
- // fill histograms
-
- // h2_test4->Fill(CandidatePhotonX[j],CandidatePhotonY[j]);
-
- // if(kDISPLAY) h1_photons->Fill(ThetaPhotonCerenkov);
-
- }
-
- if(CandidatePhotons >= 1) kPatRec = kTRUE;
-
- if(!kPatRec) return;
- {
- SetThetaCerenkov(999.);
- SetHoughPhotons(0);
- }
- SetPhotonsNumber(CandidatePhotonsNumber);
-
- HoughResponse();
-
- NRings++;
-
- FlagPhotons();
- Int_t NPhotonHough = GetHoughPhotons();
-
- if(NPhotonHough < 1)
- {
- SetThetaCerenkov(999.);
- SetHoughPhotonsNorm(0.);
- return;
- }
-
- if(kWEIGHT) FindWeightThetaCerenkov();
-
- Float_t ThetaCerenkov = GetThetaCerenkov();
-
- SetThetaOfRing(ThetaCerenkov);
- FindAreaAndPortionOfRing();
-
- Float_t NPhotonHoughNorm = ((Float_t)NPhotonHough)/GetPortionOfRing();
- SetHoughPhotonsNorm(NPhotonHoughNorm);
+// Pattern recognition method based on Hough transform
+// Return theta Cerenkov for a given track and list of clusters which are set in ctor
+// Remeber that list of clusters must contain more then 1 cluster. This considiration implies that normally we have 1 mip cluster and few photon clusters per track.
+// Argume
+// Returns: Track theta ckov in rad, nPhot contains number of photon candidates accepted for reconstruction track theta ckov
+ SetTrackTheta(pHelix->Ploc().Theta()); SetTrackPhi(pHelix->Ploc().Phi());
+ SetShiftX(pHelix->PosRad().X()); SetShiftY(pHelix->PosRad().Y());
+ fClusters = pClusters;
+ if(pClusters->GetEntries()>200) fIsWEIGHT = kTRUE; // offset to take into account bkg in reconstruction
+ else fIsWEIGHT = kFALSE;
+
+
+
+ SetThetaCerenkov(-1);
+
+ for (Int_t iClu=0; iClu<fClusters->GetEntriesFast();iClu++){//clusters loop
+ if(iClu == iMipId) continue; // do not consider MIP cluster as a photon candidate
+ SetPhotonIndex(iClu);
+ SetPhotonFlag(0);
+ SetPhotonEta(-999.);
+ SetPhotonWeight(0.);
+ AliRICHCluster *pClu=(AliRICHCluster*)fClusters->UncheckedAt(iClu); //get pointer to current cluster
+// if(pClu->Q()>AliRICHParam::QthMIP()) continue; //avoid MIP clusters from bkg
+ SetEntranceX(pClu->X() - GetShiftX()); SetEntranceY(pClu->Y() - GetShiftY()); //cluster position with respect to track intersection
+ FindPhiPoint();
+// if(PhotonInBand()==0) continue; ????????????
+ SetPhotonFlag(1);
+ FindThetaPhotonCerenkov();
+ Float_t thetaPhotonCerenkov = GetThetaPhotonCerenkov();
+ AliDebug(1,Form("Track Theta=%5.2f deg, Phi=%5.2f deg Photon clus=%2i ThetaCkov=%5.2f rad",GetTrackTheta()*TMath::RadToDeg(),GetTrackPhi()*TMath::RadToDeg()
+ ,iClu,thetaPhotonCerenkov ));
+ SetPhotonEta(thetaPhotonCerenkov);
+ }//clusters loop
+
+ SetPhotonsNumber(fClusters->GetEntries());
+
+ if((iMipId=FlagPhotons(HoughResponse()))<1) return -11; //flag photons according to individual theta ckov with respect to most probable track theta ckov
+
+
+// Float_t thetaCerenkov = GetThetaCerenkov();
+// SetThetaOfRing(thetaCerenkov);
+// FindAreaAndPortionOfRing();
+
+// Float_t nPhotonHoughNorm = ((Float_t)nPhotonHough)/GetPortionOfRing();
+// SetHoughPhotonsNorm(nPhotonHoughNorm);
// Calculate the area where the photon are accepted...
-
- Float_t ThetaInternal = ThetaCerenkov - 0.5*fWindowWidth;
- SetThetaOfRing(ThetaInternal);
+/*
+ Float_t thetaInternal = thetaCerenkov - 0.5*fWindowWidth;
+ SetThetaOfRing(thetaInternal);
FindAreaAndPortionOfRing();
- Float_t InternalArea = GetAreaOfRing();
+ Float_t internalArea = GetAreaOfRing();
- Float_t ThetaExternal = ThetaCerenkov + 0.5*fWindowWidth;
- SetThetaOfRing(ThetaExternal);
+ Float_t thetaExternal = thetaCerenkov + 0.5*fWindowWidth;
+ SetThetaOfRing(thetaExternal);
FindAreaAndPortionOfRing();
- Float_t ExternalArea = GetAreaOfRing();
-
- Float_t HoughArea = ExternalArea - InternalArea;
-
- SetHoughArea(HoughArea);
-
- if(fDebug)
- {
- cout << " ----- SUMMARY OF RECONSTRUCTION ----- " << endl;
- cout << " Rings found " << NRings << " with thetac " << ThetaCerenkov << endl;
-
- h1_hough->Fill(ThetaCerenkov,1.);
-
- cout << " Nphotons " << GetPhotonsNumber()
- << " Hough " << NPhotonHough
- << " norm " << NPhotonHoughNorm << endl;
-
- cout << " In PatRec:p " << pmod << " theta " << TrackTheta << " phi " << TrackPhi << endl;
- cout << " ------------------------------------- " << endl;
- }
-
- Int_t NPhotons = GetPhotonsNumber();
-
- Float_t xmean = 0.;
- Float_t x2mean = 0.;
- Int_t nev = 0;
-
- for (Int_t j=0; j < NPhotons;j++)
- {
- SetPhotonIndex(j);
-
- Float_t eta = GetPhotonEta();
-
- if(eta != -999.)
- {
- if(GetPhotonFlag() == 2)
- {
-
- if(pmod>2.5&&ThetaCerenkov>0.65) photris->Fill(eta);
-
- xmean += eta;
- x2mean += eta*eta;
- nev++;
- }
- }
- }
-
- if(nev > 0)
- {
- xmean /=(Float_t)nev;
- x2mean /=(Float_t)nev;
- } else {
- xmean = 0.;
- x2mean = 0.;
- }
-
- Float_t RMS = sqrt(x2mean - xmean*xmean);
-
- SetHoughRMS(RMS);
-
- if(fDebug) cout << " RMS " << RMS << endl;
-
-}
-
-void AliRICHRecon::FindEmissionPoint()
-{
-
-// Find emission point
-
- Float_t absorbtionLenght=7.83*RadiatorWidth; //absorption length in the freon (cm)
- // 7.83 = -1/ln(T0) where
- // T0->Trasmission freon at 180nm = 0.88 (Eph=6.85eV)
- Float_t photonLenght, photonLenghtMin, photonLenghtMax;
-
- photonLenght=exp(-RadiatorWidth/(absorbtionLenght*cos(fCerenkovAnglePad)));
- photonLenghtMin=RadiatorWidth*photonLenght/(1.-photonLenght);
- photonLenghtMax=absorbtionLenght*cos(fCerenkovAnglePad);
- Float_t EmissionPoint = RadiatorWidth + photonLenghtMin - photonLenghtMax;
-
- SetEmissionPoint(EmissionPoint);
-}
+ Float_t externalArea = GetAreaOfRing();
+ Float_t houghArea = externalArea - internalArea;
+ SetHoughArea(houghArea);
+*/
+ FindThetaCerenkov();
+ return GetThetaCerenkov();
+}//ThetaCerenkov()
+//__________________________________________________________________________________________________
Int_t AliRICHRecon::PhotonInBand()
{
+// Define valid band for photon candidates. For that photons with ThetaMin and ThetaMax are traced up to photcathode
- // Float_t MassOfParticle;
- Float_t beta;
Float_t nfreon;
Float_t thetacer;
- Float_t Xtoentr = GetEntranceX();
- Float_t Ytoentr = GetEntranceY();
+ Float_t xtoentr = GetEntranceX();
+ Float_t ytoentr = GetEntranceY();
- Float_t InnerRadius;
- Float_t OuterRadius;
+ Float_t innerRadius;
+ Float_t outerRadius;
Float_t phpad = GetPhiPoint();
- // Float_t pmod = GetTrackMomentum();
- // Float_t TrackTheta = GetTrackTheta();
- // Float_t TrackPhi = GetTrackPhi();
// inner radius //
- SetPhotonEnergy(5.6);
- SetEmissionPoint(RadiatorWidth -0.0001);
- SetMassHypotesis(0.93828);
-
- SetBetaOfParticle();
- SetFreonRefractiveIndex();
-
- beta = GetBetaOfParticle();
- nfreon = GetFreonRefractiveIndex();
-
- thetacer = Cerenkovangle(nfreon,beta);
+ SetEmissionPoint(AliRICHParam::RadThick() -0.0001);
+ nfreon = fParam->IdxC6F14(fParam->EckovMin());
thetacer = 0.;
- if(fDebug) cout << " thetacer in photoninband min " << thetacer << endl;
+ AliDebug(1,Form("thetacer in photoninband min %f",thetacer));
FindThetaAtQuartz(thetacer);
- if(thetacer == 999. || GetThetaAtQuartz() == 999.)
- {
- InnerRadius = -999.;
+ if(thetacer == 999. || GetThetaAtQuartz() == 999.) {
+ innerRadius = -999.;
SetXInnerRing(-999.);
SetYInnerRing(-999.);
SetRadiusInnerRing(-999.);
SetThetaPhotonInDRS(GetThetaAtQuartz());
SetPhiPhotonInDRS(phpad);
- InnerRadius = FromEmissionToCathode();
- if(InnerRadius == 999.) InnerRadius = -999.;
+ innerRadius = FromEmissionToCathode();
+ if(innerRadius == 999.) innerRadius = -999.;
SetXInnerRing(GetXPointOnCathode());
SetYInnerRing(GetYPointOnCathode());
- SetRadiusInnerRing(InnerRadius);
+ SetRadiusInnerRing(innerRadius);
}
// outer radius //
- SetPhotonEnergy(7.7);
SetEmissionPoint(0.);
// SetMassHypotesis(0.139567);
- SetMassHypotesis(0.);
-
- SetBetaOfParticle();
- SetFreonRefractiveIndex();
- beta = GetBetaOfParticle();
- nfreon = GetFreonRefractiveIndex();
+ nfreon = fParam->IdxC6F14(fParam->EckovMax());
- thetacer = Cerenkovangle(nfreon,beta);
+ thetacer = Cerenkovangle(nfreon,1);
// thetacer = 0.75;
- if(fDebug) cout << " thetacer in photoninband max " << thetacer << endl;
+ AliDebug(1,Form("thetacer in photoninband max %f",thetacer));
FindThetaAtQuartz(thetacer);
if(thetacer == 999. || GetThetaAtQuartz() == 999.)
{
- OuterRadius = 999.;
+ outerRadius = 999.;
SetXOuterRing(999.);
SetYOuterRing(999.);
SetRadiusOuterRing(999.);
SetThetaPhotonInDRS(GetThetaAtQuartz());
SetPhiPhotonInDRS(phpad);
- OuterRadius = FromEmissionToCathode();
-// cout << " OuterRadius " << OuterRadius << endl;
+ outerRadius = FromEmissionToCathode();
+// cout << " outerRadius " << outerRadius << endl;
SetXOuterRing(GetXPointOnCathode());
SetYOuterRing(GetYPointOnCathode());
- SetRadiusOuterRing(OuterRadius);
+ SetRadiusOuterRing(outerRadius);
}
- Float_t padradius = sqrt(TMath::Power(Xtoentr,2)+TMath::Power(Ytoentr,2));
+ Float_t padradius = sqrt(TMath::Power(xtoentr,2)+TMath::Power(ytoentr,2));
- if(fDebug) printf(" rmin %f r %f rmax %f \n",InnerRadius,padradius,OuterRadius);
+ AliDebug(1,Form("rmin %f r %f rmax %f",innerRadius,padradius,outerRadius));
- if(padradius>=InnerRadius && padradius<=OuterRadius) return 1;
+ if(padradius>=innerRadius && padradius<=outerRadius) return 1;
return 0;
-}
-
-void AliRICHRecon::FindThetaAtQuartz(Float_t ThetaCerenkov)
+}//PhotonInBand()
+//__________________________________________________________________________________________________
+void AliRICHRecon::FindThetaAtQuartz(Float_t thetaCerenkov)
{
+// find the theta at the quartz plate
- if(ThetaCerenkov == 999.)
- {
- SetThetaAtQuartz(999.);
- return;
- }
-
- Float_t ThetaAtQuartz = 999.;
+ if(thetaCerenkov == 999.) { SetThetaAtQuartz(999.); return; }
- Float_t TrackTheta = GetTrackTheta();
+ Float_t thetaAtQuartz = 999.;
- if(TrackTheta == 0) {
+ Float_t trackTheta = GetTrackTheta();
- if(fDebug) cout << " Theta sol unique " << ThetaCerenkov << endl;
-
- ThetaAtQuartz = ThetaCerenkov;
- SetThetaAtQuartz(ThetaAtQuartz);
+ if(trackTheta == 0) {
+ thetaAtQuartz = thetaCerenkov;
+ SetThetaAtQuartz(thetaAtQuartz);
return;
}
- Float_t TrackPhi = GetTrackPhi();
- Float_t PhiPoint = GetPhiPoint();
-
- Double_t den = TMath::Sin((Double_t)TrackTheta)
- *TMath::Cos((Double_t)TrackPhi)
- *TMath::Cos((Double_t)PhiPoint) +
- TMath::Sin((Double_t)TrackTheta)
- *TMath::Sin((Double_t)TrackPhi)
- *TMath::Sin((Double_t)PhiPoint);
- Double_t b = TMath::Cos((Double_t)TrackTheta)/den;
- Double_t c = -TMath::Cos((Double_t)ThetaCerenkov)/den;
+ Float_t trackPhi = GetTrackPhi();
+ Float_t phiPoint = GetPhiPoint();
- Double_t UnderSqrt = 1 + b*b - c*c;
+ Double_t den = TMath::Sin((Double_t)trackTheta)*TMath::Cos((Double_t)trackPhi)*TMath::Cos((Double_t)phiPoint) +
+ TMath::Sin((Double_t)trackTheta)*TMath::Sin((Double_t)trackPhi)*TMath::Sin((Double_t)phiPoint);
+ Double_t b = TMath::Cos((Double_t)trackTheta)/den;
+ Double_t c = -TMath::Cos((Double_t)thetaCerenkov)/den;
- if(fDebug)
- {
- cout << " TrackTheta " << TrackTheta << endl;
- cout << " TrackPhi " << TrackPhi << endl;
- cout << " PhiPoint " << PhiPoint << endl;
- cout << " ThetaCerenkov " << ThetaCerenkov << endl;
- cout << " den b c " << den << " b " << b << " c " << c << endl;
- }
+ Double_t underSqrt = 1 + b*b - c*c;
- if(UnderSqrt < 0) {
- if(fDebug) cout << " sqrt negative !!!!" << UnderSqrt << endl;
+ if(underSqrt < 0) {
SetThetaAtQuartz(999.);
return;
}
- Double_t sol1 = (1+TMath::Sqrt(UnderSqrt))/(b-c);
- Double_t sol2 = (1-TMath::Sqrt(UnderSqrt))/(b-c);
+ Double_t sol1 = (1+TMath::Sqrt(underSqrt))/(b-c);
+ Double_t sol2 = (1-TMath::Sqrt(underSqrt))/(b-c);
- Double_t ThetaSol1 = 2*TMath::ATan(sol1);
- Double_t ThetaSol2 = 2*TMath::ATan(sol2);
+ Double_t thetaSol1 = 2*TMath::ATan(sol1);
+ Double_t thetaSol2 = 2*TMath::ATan(sol2);
- if(fDebug) cout << " Theta sol 1 " << ThetaSol1
- << " Theta sol 2 " << ThetaSol2 << endl;
+ if(thetaSol1>0 && thetaSol1 < TMath::Pi()) thetaAtQuartz = (Float_t)thetaSol1;
+ if(thetaSol2>0 && thetaSol2 < TMath::Pi()) thetaAtQuartz = (Float_t)thetaSol2;
- if(ThetaSol1>0 && ThetaSol1 < pi) ThetaAtQuartz = (Float_t)ThetaSol1;
- if(ThetaSol2>0 && ThetaSol2 < pi) ThetaAtQuartz = (Float_t)ThetaSol2;
+// AliDebug(1,Form(" Theta @ quartz window %f ",thetaAtQuartz));
- SetThetaAtQuartz(ThetaAtQuartz);
+ SetThetaAtQuartz(thetaAtQuartz);
}
-
+//__________________________________________________________________________________________________
void AliRICHRecon::FindThetaPhotonCerenkov()
{
+ //find theta cerenkov of ring
- Float_t ThetaCerMin = 0.;
- Float_t ThetaCerMax = 0.75;
- Float_t ThetaCerMean;
+ Float_t thetaCerMin = 0.;
+ Float_t thetaCerMax = 0.75;
+ Float_t thetaCerMean;
- Float_t RadiusMin, RadiusMax, RadiusMean;
+ Float_t radiusMin, radiusMax, radiusMean;
Int_t nIteration = 0;
- const Float_t Tollerance = 0.05;
+ const Float_t kTollerance = 0.05;
- // Float_t pmod = GetTrackMomentum();
- // Float_t TrackTheta = GetTrackTheta();
- // Float_t TrackPhi = GetTrackPhi();
- Float_t PhiPoint = GetPhiPoint();
+ Float_t phiPoint = GetPhiPoint();
- SetPhotonEnergy(6.85);
- SetEmissionPoint(RadiatorWidth/2);
+ SetEmissionPoint(AliRICHParam::RadThick()/2);
- Float_t XPoint = GetEntranceX();
- Float_t YPoint = GetEntranceY();
- Float_t DistPoint = sqrt(XPoint*XPoint + YPoint*YPoint);
+ Float_t xPoint = GetEntranceX();
+ Float_t yPoint = GetEntranceY();
+ Float_t distPoint = TMath::Sqrt(xPoint*xPoint + yPoint*yPoint);
- if(fDebug) cout << " DistPoint " << DistPoint << endl;
+// AliDebug(1,Form(" DistPoint %f ",distPoint));
// Star minimization...
// First value...
- FindThetaAtQuartz(ThetaCerMin);
+ FindThetaAtQuartz(thetaCerMin);
if(GetThetaAtQuartz() == 999.)
{
- RadiusMin = -999.;
+ radiusMin = -999.;
}
else
{
SetThetaPhotonInDRS(GetThetaAtQuartz());
- SetPhiPhotonInDRS(PhiPoint);
+ SetPhiPhotonInDRS(phiPoint);
- RadiusMin = FromEmissionToCathode();
+ radiusMin = FromEmissionToCathode();
}
// Second value...
- FindThetaAtQuartz(ThetaCerMax);
+ FindThetaAtQuartz(thetaCerMax);
if(GetThetaAtQuartz() == 999.)
{
- RadiusMax = 999.;
+ radiusMax = 999.;
}
else
{
SetThetaPhotonInDRS(GetThetaAtQuartz());
- SetPhiPhotonInDRS(PhiPoint);
+ SetPhiPhotonInDRS(phiPoint);
- RadiusMax = FromEmissionToCathode();
+ radiusMax = FromEmissionToCathode();
}
// Mean value...
- ThetaCerMean = (ThetaCerMax + ThetaCerMin)/2;
+ thetaCerMean = (thetaCerMax + thetaCerMin)/2;
- FindThetaAtQuartz(ThetaCerMean);
+ FindThetaAtQuartz(thetaCerMean);
if(GetThetaAtQuartz() == 999.)
{
- RadiusMean = 999.;
+ radiusMean = 999.;
}
else
{
SetThetaPhotonInDRS(GetThetaAtQuartz());
- SetPhiPhotonInDRS(PhiPoint);
+ SetPhiPhotonInDRS(phiPoint);
- RadiusMean = FromEmissionToCathode();
+ radiusMean = FromEmissionToCathode();
}
- if(fDebug) cout << " r1 " << RadiusMin << " rmean "
- << RadiusMean << " r2 " << RadiusMax << endl;
+// AliDebug(1,Form(" r1 %f rmean %f r2 %f",radiusMin,radiusMean,radiusMax));
- while (TMath::Abs(RadiusMean-DistPoint) > Tollerance)
+ while (TMath::Abs(radiusMean-distPoint) > kTollerance)
{
- if((RadiusMin-DistPoint)*(RadiusMean-DistPoint) < 0) ThetaCerMax = ThetaCerMean;
- if((RadiusMin-DistPoint)*(RadiusMean-DistPoint) > 0) {
+ if((radiusMin-distPoint)*(radiusMean-distPoint) < 0) thetaCerMax = thetaCerMean;
+ if((radiusMin-distPoint)*(radiusMean-distPoint) > 0) {
- ThetaCerMin = ThetaCerMean;
+ thetaCerMin = thetaCerMean;
- FindThetaAtQuartz(ThetaCerMin);
+ FindThetaAtQuartz(thetaCerMin);
SetThetaPhotonInDRS(GetThetaAtQuartz());
- SetPhiPhotonInDRS(PhiPoint);
+ SetPhiPhotonInDRS(phiPoint);
- RadiusMin =FromEmissionToCathode();
+ radiusMin =FromEmissionToCathode();
}
- ThetaCerMean = (ThetaCerMax + ThetaCerMin)/2;
+ thetaCerMean = (thetaCerMax + thetaCerMin)/2;
- FindThetaAtQuartz(ThetaCerMean);
+ FindThetaAtQuartz(thetaCerMean);
SetThetaPhotonInDRS(GetThetaAtQuartz());
- SetPhiPhotonInDRS(PhiPoint);
+ SetPhiPhotonInDRS(phiPoint);
- RadiusMean = FromEmissionToCathode();
+ radiusMean = FromEmissionToCathode();
nIteration++;
if(nIteration>=50) {
- if(fDebug) printf(" max iterations in FindPhotonCerenkov\n");
+// AliDebug(1,Form(" max iterations in FindPhotonCerenkov ",nIteration));
SetThetaPhotonCerenkov(999.);
return;
}
}
- SetThetaPhotonCerenkov(ThetaCerMean);
+// AliDebug(1,Form(" distpoint %f radius %f ",distPoint,radiusMean));
+ SetThetaPhotonCerenkov(thetaCerMean);
}
-
+//__________________________________________________________________________________________________
void AliRICHRecon::FindAreaAndPortionOfRing()
{
+ //find fraction of the ring accepted by the RICH
- Float_t XPoint[NPointsOfRing], YPoint[NPointsOfRing];
+ Float_t xPoint[NPointsOfRing], yPoint[NPointsOfRing];
- // Float_t Xtoentr = GetEntranceX();
- // Float_t Ytoentr = GetEntranceY();
- Float_t ShiftX = GetShiftX();
- Float_t ShiftY = GetShiftY();
+ // Float_t xtoentr = GetEntranceX();
+ // Float_t ytoentr = GetEntranceY();
+ Float_t shiftX = GetShiftX();
+ Float_t shiftY = GetShiftY();
- Float_t XEmiss = GetXCoordOfEmission();
- Float_t YEmiss = GetYCoordOfEmission();
+ Float_t xemiss = GetXCoordOfEmission();
+ Float_t yemiss = GetYCoordOfEmission();
- Float_t x0 = XEmiss + ShiftX;
- Float_t y0 = YEmiss + ShiftY;
+ Float_t x0 = xemiss + shiftX;
+ Float_t y0 = yemiss + shiftY;
- // Float_t pmod = GetTrackMomentum();
- // Float_t TrackTheta = GetTrackTheta();
- // Float_t TrackPhi = GetTrackPhi();
- SetPhotonEnergy(6.85);
- SetFreonRefractiveIndex();
- SetEmissionPoint(RadiatorWidth/2.);
+ SetEmissionPoint(AliRICHParam::RadThick()/2.);
- Float_t Theta = GetThetaOfRing();
+ Float_t theta = GetThetaOfRing();
Int_t nPoints = 0;
- Int_t NPsiAccepted = 0;
- Int_t NPsiTotal = 0;
-
- for(Int_t i=0;i<NPointsOfRing-1;i++)
- {
+ Int_t nPsiAccepted = 0;
+ Int_t nPsiTotal = 0;
- Float_t Psi = 2*TMath::Pi()*i/NPointsOfRing;
+ for(Int_t i=0;i<NPointsOfRing-1;i++){
+ Float_t psi = 2*TMath::Pi()*i/NPointsOfRing;
- SetThetaPhotonInTRS(Theta);
- SetPhiPhotonInTRS(Psi);
+ SetThetaPhotonInTRS(theta);
+ SetPhiPhotonInTRS(psi);
FindPhotonAnglesInDRS();
- Float_t Radius = FromEmissionToCathode();
- if (Radius == 999.) continue;
+ Float_t radius = FromEmissionToCathode();
+ if (radius == 999.) continue;
- NPsiTotal++;
+ nPsiTotal++;
- Float_t XPointRing = GetXPointOnCathode() + ShiftX;
- Float_t YPointRing = GetYPointOnCathode() + ShiftY;
+ Float_t xPointRing = GetXPointOnCathode() + shiftX;
+ Float_t yPointRing = GetYPointOnCathode() + shiftY;
- SetDetectorWhereX(XPointRing);
- SetDetectorWhereY(YPointRing);
+ SetDetectorWhereX(xPointRing);
+ SetDetectorWhereY(yPointRing);
- Int_t Zone = CheckDetectorAcceptance();
-
-// cout << " XPointing " << XPointRing << " YPointing " << YPointRing << " Zone " << Zone << endl;
-// cout << " ShiftX " << ShiftX << " ShiftY " << ShiftY << endl;
-// cout << " GetXPointOnCathode() " << GetXPointOnCathode() << endl;
-// cout << " GetYPointOnCathode() " << GetYPointOnCathode() << endl;
-
- if (Zone != 0)
- {
- FindIntersectionWithDetector();
- XPoint[nPoints] = GetIntersectionX();
- YPoint[nPoints] = GetIntersectionY();
- }
- else
- {
- XPoint[nPoints] = XPointRing;
- YPoint[nPoints] = YPointRing;
- NPsiAccepted++;
- }
+ Int_t zone = CheckDetectorAcceptance();
- nPoints++;
+ AliDebug(1,Form("acceptance to detector zone -> %d",zone));
- }
+ if (zone != 0){
+ FindIntersectionWithDetector();
+ xPoint[nPoints] = GetIntersectionX(); yPoint[nPoints] = GetIntersectionY();
+ }else{
+ xPoint[nPoints] = xPointRing; yPoint[nPoints] = yPointRing;
+ nPsiAccepted++;
+ }
+ nPoints++;
+ }
- XPoint[nPoints] = XPoint[0];
- YPoint[nPoints] = YPoint[0];
+ xPoint[nPoints] = xPoint[0]; yPoint[nPoints] = yPoint[0];
// find area...
- Float_t Area = 0;
+ Float_t area = 0;
for (Int_t i = 0; i < nPoints; i++)
{
- Area += TMath::Abs((XPoint[i]-x0)*(YPoint[i+1]-y0) - (XPoint[i+1]-x0)*(YPoint[i]-y0));
+ area += TMath::Abs((xPoint[i]-x0)*(yPoint[i+1]-y0) - (xPoint[i+1]-x0)*(yPoint[i]-y0));
}
- Area *= 0.5;
+ area *= 0.5;
- Float_t PortionOfRing = ((Float_t)NPsiAccepted)/((Float_t)(NPsiTotal));
-
- // cout << " Area " << Area << " Portion of ring " << PortionOfRing << endl;
+ Float_t portionOfRing = 0;
+ if (nPsiTotal>0)
+ portionOfRing = ((Float_t)nPsiAccepted)/((Float_t)(nPsiTotal));
- SetAreaOfRing(Area);
- SetPortionOfRing(PortionOfRing);
-}
+ SetAreaOfRing(area);
+ SetPortionOfRing(portionOfRing);
+}//FindAreaAndPortionOfRing()
+//__________________________________________________________________________________________________
void AliRICHRecon::FindIntersectionWithDetector()
{
+ // find ring intersection with CsI edges
- Float_t XIntersect, YIntersect;
+ Float_t xIntersect, yIntersect;
Float_t x1, x2, y1, y2;
- Float_t ShiftX = GetShiftX();
- Float_t ShiftY = GetShiftY();
+ Float_t shiftX = GetShiftX();
+ Float_t shiftY = GetShiftY();
- Float_t XPoint = GetXPointOnCathode() + ShiftX;
- Float_t YPoint = GetYPointOnCathode() + ShiftY;
+ Float_t xPoint = GetXPointOnCathode() + shiftX;
+ Float_t yPoint = GetYPointOnCathode() + shiftY;
- Float_t XEmiss = GetXCoordOfEmission();
- Float_t YEmiss = GetYCoordOfEmission();
+ Float_t xemiss = GetXCoordOfEmission();
+ Float_t yemiss = GetYCoordOfEmission();
- Float_t Phi = GetPhiPhotonInDRS();
- Float_t m = tan(Phi);
+ Float_t phi = GetPhiPhotonInDRS();
+ Float_t m = tan(phi);
- Float_t x0 = XEmiss + ShiftX;
- Float_t y0 = YEmiss + ShiftY;
+ Float_t x0 = xemiss + shiftX;
+ Float_t y0 = yemiss + shiftY;
- if(XPoint > x0)
+ if(xPoint > x0)
{
x1 = x0;
- x2 = XPoint;
+ x2 = xPoint;
}
else
{
x2 = x0;
- x1 = XPoint;
+ x1 = xPoint;
}
- if(YPoint > y0)
+ if(yPoint > y0)
{
y1 = y0;
- y2 = YPoint;
+ y2 = yPoint;
}
else
{
y2 = y0;
- y1 = YPoint;
+ y1 = yPoint;
}
//
- XIntersect = Xmax;
- YIntersect = m*(XIntersect - x0) + y0;
- if (YIntersect >= Ymin && YIntersect <= Ymax && XIntersect >= x1 && XIntersect <= x2)
+ xIntersect = AliRICHParam::PcSizeX();
+ yIntersect = m*(xIntersect - x0) + y0;
+ if (yIntersect >= 0 && yIntersect <= AliRICHParam::PcSizeY() && xIntersect >= x1 && xIntersect <= x2)
{
- SetIntersectionX(XIntersect);
- SetIntersectionY(YIntersect);
+ SetIntersectionX(xIntersect);
+ SetIntersectionY(yIntersect);
return;
}
//
- XIntersect = Xmin;
- YIntersect = m*(XIntersect - x0) + y0;
- if (YIntersect >= Ymin && YIntersect <= Ymax && XIntersect >= x1 && XIntersect <= x2)
+ xIntersect = 0;
+ yIntersect = m*(xIntersect - x0) + y0;
+ if (yIntersect >= 0 && yIntersect <= AliRICHParam::PcSizeY() && xIntersect >= x1 && xIntersect <= x2)
{
- SetIntersectionX(XIntersect);
- SetIntersectionY(YIntersect);
+ SetIntersectionX(xIntersect);
+ SetIntersectionY(yIntersect);
return;
}
//
- YIntersect = Ymax;
- XIntersect = (YIntersect - y0)/m + x0;
- if (XIntersect >= Xmin && XIntersect <= Xmax && YIntersect >= y1 && YIntersect <= y2)
+ yIntersect = AliRICHParam::PcSizeY();
+ xIntersect = (yIntersect - y0)/m + x0;
+ if (xIntersect >= 0 && xIntersect <= AliRICHParam::PcSizeX() && yIntersect >= y1 && yIntersect <= y2)
{
- SetIntersectionX(XIntersect);
- SetIntersectionY(YIntersect);
+ SetIntersectionX(xIntersect);
+ SetIntersectionY(yIntersect);
return;
}
//
- YIntersect = Ymin;
- XIntersect = (YIntersect - y0)/m + x0;
- if (XIntersect >= Xmin && XIntersect <= Xmax && YIntersect >= y1 && YIntersect <= y2)
+ yIntersect = 0;
+ xIntersect = (yIntersect - y0)/m + x0;
+ if (xIntersect >= 0 && xIntersect <= AliRICHParam::PcSizeX() && yIntersect >= y1 && yIntersect <= y2)
{
- SetIntersectionX(XIntersect);
- SetIntersectionY(YIntersect);
+ SetIntersectionX(xIntersect);
+ SetIntersectionY(yIntersect);
return;
}
-
- cout << " sono fuori!!!!!!" << endl;
-// cout << " x1 " << x1 << " x2 " << x2 << endl;
-// cout << " y1 " << y1 << " y2 " << y2 << endl;
-// cout << " Xmin " << Xmin << " Xmax " << Xmax << endl;
-// cout << " Ymin " << Ymin << " Ymax " << Ymax << endl;
-
}
-Int_t AliRICHRecon::CheckDetectorAcceptance()
+//__________________________________________________________________________________________________
+Int_t AliRICHRecon::CheckDetectorAcceptance() const
{
+ // check for the acceptance
// crosses X -2.6 2.6 cm
// crosses Y -1 1 cm
- Float_t Xcoord = GetDetectorWhereX();
- Float_t Ycoord = GetDetectorWhereY();
+ Float_t xcoord = GetDetectorWhereX();
+ Float_t ycoord = GetDetectorWhereY();
-// cout << " Xcoord " << Xcoord << " Ycoord " << Ycoord << endl;
- if(Xcoord > Xmax)
+ if(xcoord > AliRICHParam::PcSizeX())
{
- if(Ycoord > Ymax) return 2;
- if(Ycoord > Ymin && Ycoord < Ymax) return 3;
- if(Ycoord < Ymin) return 4;
+ if(ycoord > AliRICHParam::PcSizeY()) return 2;
+ if(ycoord > 0 && ycoord < AliRICHParam::PcSizeY()) return 3;
+ if(ycoord < 0) return 4;
}
- if(Xcoord < Xmin)
+ if(xcoord < 0)
{
- if(Ycoord > Ymax) return 8;
- if(Ycoord > Ymin && Ycoord < Ymax) return 7;
- if(Ycoord < Ymin) return 6;
+ if(ycoord > AliRICHParam::PcSizeY()) return 8;
+ if(ycoord > 0 && ycoord < AliRICHParam::PcSizeY()) return 7;
+ if(ycoord < 0) return 6;
}
- if(Xcoord > Xmin && Xcoord < Xmax)
+ if(xcoord > 0 && xcoord < AliRICHParam::PcSizeX())
{
- if(Ycoord > Ymax) return 1;
- if(Ycoord > Ymin && Ycoord < Ymax) return 0;
- if(Ycoord < Ymin) return 5;
+ if(ycoord > AliRICHParam::PcSizeY()) return 1;
+ if(ycoord > 0 && ycoord < AliRICHParam::PcSizeY()) return 0;
+ if(ycoord < 0) return 5;
}
return 999;
}
-
-void AliRICHRecon::DrawRing()
+//__________________________________________________________________________________________________
+void AliRICHRecon::FindPhotonAnglesInDRS()
{
+ // Setup the rotation matrix of the track...
- // Float_t xGraph[1000],yGraph[1000];
+ TRotation mtheta;
+ TRotation mphi;
+ TRotation minv;
+ TRotation mrot;
+
+ Float_t trackTheta = GetTrackTheta();
+ Float_t trackPhi = GetTrackPhi();
- Float_t type;
- // Float_t MassOfParticle;
- Float_t beta;
- Float_t nfreon;
+ mtheta.RotateY(trackTheta);
+ mphi.RotateZ(trackPhi);
+
+ mrot = mphi * mtheta;
+ // minv = mrot.Inverse();
- Float_t ThetaCerenkov;
+ TVector3 photonInRadiator(1,1,1);
- // Float_t Xtoentr = GetEntranceX();
- // Float_t Ytoentr = GetEntranceY();
+ Float_t thetaCerenkov = GetThetaPhotonInTRS();
+ Float_t phiCerenkov = GetPhiPhotonInTRS();
- // Float_t pmod = GetTrackMomentum();
- // Float_t TrackTheta = GetTrackTheta();
- // Float_t TrackPhi = GetTrackPhi();
+ photonInRadiator.SetTheta(thetaCerenkov);
+ photonInRadiator.SetPhi(phiCerenkov);
+ photonInRadiator = mrot * photonInRadiator;
+ Float_t theta = photonInRadiator.Theta();
+ Float_t phi = photonInRadiator.Phi();
+ SetThetaPhotonInDRS(theta);
+ SetPhiPhotonInDRS(phi);
- SetPhotonEnergy(6.85);
- SetFreonRefractiveIndex();
+}
+//__________________________________________________________________________________________________
+Float_t AliRICHRecon::FromEmissionToCathode()
+{
+// Trace current photon from emission point somewhere in radiator to photocathode
+// Arguments: none
+// Returns:
- SetEmissionPoint(RadiatorWidth/2.);
+ Float_t nfreon, nquartz, ngas;
- type = 1;
- if(type == 1)
- {
- SetMassHypotesis(0.139567);
- SetBetaOfParticle();
-
- beta = GetBetaOfParticle();
-
- }
- else if(type == 2)
- {
- ThetaCerenkov = GetThetaCerenkov();
- FindBetaFromTheta(ThetaCerenkov);
- }
-
- nfreon = GetFreonRefractiveIndex();
+ nfreon = fParam->IdxC6F14(fParam->EckovMean());
+ nquartz = fParam->IdxSiO2(fParam->EckovMean());
+ ngas = fParam->IdxCH4(fParam->EckovMean());
+
+ Float_t trackTheta = GetTrackTheta();
+ Float_t trackPhi = GetTrackPhi();
+ Float_t lengthOfEmissionPoint = GetEmissionPoint();
+
+ Float_t theta = GetThetaPhotonInDRS();
+ Float_t phi = GetPhiPhotonInDRS();
+
+ Float_t xemiss = lengthOfEmissionPoint*tan(trackTheta)*cos(trackPhi);
+ Float_t yemiss = lengthOfEmissionPoint*tan(trackTheta)*sin(trackPhi);
+
+ SetXCoordOfEmission(xemiss);
+ SetYCoordOfEmission(yemiss);
- Float_t thetacer = Cerenkovangle(nfreon,beta);
+ Float_t thetaquar = SnellAngle(nfreon, nquartz, theta);
- if(fDebug) cout << " TetaCer in DrawRing " << thetacer << endl;
+ if(thetaquar == 999.)
+ {
+ SetXPointOnCathode(999.);
+ SetYPointOnCathode(999.);
+ return thetaquar;
+ }
- Int_t nPoints = 100;
+ Float_t thetagap = SnellAngle( nquartz, ngas, thetaquar);
- Int_t nPointsToDraw = 0;
- for(Int_t i=0;i<nPoints;i++)
+ if(thetagap == 999.)
{
- Float_t phpad = 2*TMath::Pi()*i/nPoints;
- SetThetaPhotonInTRS(thetacer);
- SetPhiPhotonInTRS(phpad);
- FindPhotonAnglesInDRS();
- Float_t Radius = FromEmissionToCathode();
- if (Radius == 999.) continue;
- xGraph[nPointsToDraw] = GetXPointOnCathode() + GetShiftX();
- yGraph[nPointsToDraw] = GetYPointOnCathode() + GetShiftY();
- // cout << " get shift X " << GetShiftX() << endl;
- // cout << " get shift Y " << GetShiftY() << endl;
- nPointsToDraw++;
+ SetXPointOnCathode(999.);
+ SetYPointOnCathode(999.);
+ return thetagap;
}
+ Float_t xw = (AliRICHParam::RadThick() - lengthOfEmissionPoint)*cos(phi)*tan(theta);
+ Float_t xq = AliRICHParam::WinThick()*cos(phi)*tan(thetaquar);
+ Float_t xg = AliRICHParam::Pc2Win()*cos(phi)*tan(thetagap);
+ Float_t yw = (AliRICHParam::RadThick() - lengthOfEmissionPoint)*sin(phi)*tan(theta);
+ Float_t yq = AliRICHParam::WinThick()*sin(phi)*tan(thetaquar);
+ Float_t yg = AliRICHParam::Pc2Win()*sin(phi)*tan(thetagap);
- if(fDebug) cout << " Drawing the Ring... with " << nPointsToDraw << " points " << endl;
- // pol = new TPolyLine(nPointsToDraw,xGraph,yGraph);
- // pol->Draw("same");
- gra = new TGraph(nPointsToDraw,xGraph,yGraph);
- gra->Draw("AC");
- StarCanvas->Update();
-
-}
+ Float_t xtot = xemiss + xw + xq + xg;
+ Float_t ytot = yemiss + yw + yq + yg;
-Float_t AliRICHRecon::PhotonPositionOnCathode()
-{
- // Float_t MassOfParticle;
- Float_t beta;
- Float_t nfreon;
+ SetXPointOnCathode(xtot);
+ SetYPointOnCathode(ytot);
- // Float_t pmod = GetTrackMomentum();
- // Float_t TrackTheta = GetTrackTheta();
- // Float_t TrackPhi = GetTrackPhi();
- // Float_t phpad = GetPhiPoint();
+ Float_t distanceFromEntrance = TMath::Sqrt(TMath::Power(fPhotonLimitX,2)+TMath::Power(fPhotonLimitY,2));
- SetPhotonEnergy(6.85);
- SetEmissionPoint(RadiatorWidth/2.);
- SetMassHypotesis(0.139567);
+ return distanceFromEntrance;
- SetBetaOfParticle();
- SetFreonRefractiveIndex();
+}
+//__________________________________________________________________________________________________
+void AliRICHRecon::FindPhiPoint()
+{
+ //find phi of generated point
- beta = GetBetaOfParticle();
- nfreon = GetFreonRefractiveIndex();
+ Float_t xtoentr = GetEntranceX();
+ Float_t ytoentr = GetEntranceY();
- // Float_t thetacer = Cerenkovangle(nfreon,beta);
+ Float_t trackTheta = GetTrackTheta();
+ Float_t trackPhi = GetTrackPhi();
- // cout << " FromEmissionToCathode: thetacer " << thetacer << " phpad " << phpad << endl;
+ Float_t emissionPoint = GetEmissionPoint();
- Float_t Radius = FromEmissionToCathode();
- if (Radius == 999.) return 999.;
+ Float_t argY = ytoentr - emissionPoint*tan(trackTheta)*sin(trackPhi);
+ Float_t argX = xtoentr - emissionPoint*tan(trackTheta)*cos(trackPhi);
+ Float_t phi = atan2(argY,argX);
- // Float_t Xphoton = GetXPointOnCathode();
- // Float_t Yphoton = GetYPointOnCathode();
- // cout << " PhotonPositionOnCathode: Xphoton " << Xphoton << " Yphoton " << Yphoton <<
- // " Radius for photon " << Radius << endl;
- return 0;
-}
-
-void AliRICHRecon::FindPhotonAnglesInDRS()
-{
- // Setup the rotation matrix of the track...
-
- TRotation Mtheta;
- TRotation Mphi;
- TRotation Minv;
- TRotation Mrot;
-
- Float_t TrackTheta = GetTrackTheta();
- Float_t TrackPhi = GetTrackPhi();
-
- Mtheta.RotateY(TrackTheta);
- Mphi.RotateZ(TrackPhi);
-
- Mrot = Mphi * Mtheta;
- // Minv = Mrot.Inverse();
-
- TVector3 PhotonInRadiator(1,1,1);
-
- Float_t ThetaCerenkov = GetThetaPhotonInTRS();
- Float_t PhiCerenkov = GetPhiPhotonInTRS();
-
- PhotonInRadiator.SetTheta(ThetaCerenkov);
- PhotonInRadiator.SetPhi(PhiCerenkov);
- PhotonInRadiator = Mrot * PhotonInRadiator;
- Float_t Theta = PhotonInRadiator.Theta();
- Float_t Phi = PhotonInRadiator.Phi();
- SetThetaPhotonInDRS(Theta);
- SetPhiPhotonInDRS(Phi);
+ SetPhiPoint(phi);
}
-
-Float_t AliRICHRecon::FromEmissionToCathode()
-{
-
- Float_t nfreon, nquartz, ngas;
-
- SetFreonRefractiveIndex();
- SetQuartzRefractiveIndex();
- SetGasRefractiveIndex();
-
- nfreon = GetFreonRefractiveIndex();
- nquartz = GetQuartzRefractiveIndex();
- ngas = GetGasRefractiveIndex();
-
- Float_t TrackTheta = GetTrackTheta();
- Float_t TrackPhi = GetTrackPhi();
- Float_t LengthOfEmissionPoint = GetEmissionPoint();
-
- Float_t Theta = GetThetaPhotonInDRS();
- Float_t Phi = GetPhiPhotonInDRS();
-
-// cout << " Theta " << Theta << " Phi " << Phi << endl;
-
- Float_t xEmiss = LengthOfEmissionPoint*tan(TrackTheta)*cos(TrackPhi);
- Float_t yEmiss = LengthOfEmissionPoint*tan(TrackTheta)*sin(TrackPhi);
-
- SetXCoordOfEmission(xEmiss);
- SetYCoordOfEmission(yEmiss);
-
- Float_t thetaquar = SnellAngle(nfreon, nquartz, Theta);
-
- if(thetaquar == 999.)
- {
- SetXPointOnCathode(999.);
- SetYPointOnCathode(999.);
- return thetaquar;
- }
-
- Float_t thetagap = SnellAngle( nquartz, ngas, thetaquar);
-
- if(thetagap == 999.)
- {
- SetXPointOnCathode(999.);
- SetYPointOnCathode(999.);
- return thetagap;
- }
-
- Float_t xw = (RadiatorWidth - LengthOfEmissionPoint)*cos(Phi)*tan(Theta);
- Float_t xq = QuartzWidth*cos(Phi)*tan(thetaquar);
- Float_t xg = GapWidth*cos(Phi)*tan(thetagap);
- Float_t yw = (RadiatorWidth - LengthOfEmissionPoint)*sin(Phi)*tan(Theta);
- Float_t yq = QuartzWidth*sin(Phi)*tan(thetaquar);
- Float_t yg = GapWidth*sin(Phi)*tan(thetagap);
-
-// Float_t xtot = x1 + xw + xq + xg;
-// Float_t ytot = y1 + yw + yq + yg;
-
- Float_t xtot = xEmiss + xw + xq + xg;
- Float_t ytot = yEmiss + yw + yq + yg;
-
- SetXPointOnCathode(xtot);
- SetYPointOnCathode(ytot);
-
-// cout << " xtot " << xtot << " ytot " << ytot << endl;
-
- Float_t DistanceFromEntrance = sqrt(TMath::Power(fPhotonLimitX,2)
- +TMath::Power(fPhotonLimitY,2));
-
- return DistanceFromEntrance;
-
-}
-
-
-void AliRICHRecon::FindPhiPoint()
-{
-
- Float_t Xtoentr = GetEntranceX();
- Float_t Ytoentr = GetEntranceY();
-
- Float_t TrackTheta = GetTrackTheta();
- Float_t TrackPhi = GetTrackPhi();
-
- Float_t EmissionPoint = GetEmissionPoint();
-
- Float_t argY = Ytoentr - EmissionPoint*tan(TrackTheta)*sin(TrackPhi);
- Float_t argX = Xtoentr - EmissionPoint*tan(TrackTheta)*cos(TrackPhi);
- Float_t phipad = atan2(argY,argX);
-
- SetPhiPoint(phipad);
-
-}
-
+//__________________________________________________________________________________________________
Float_t AliRICHRecon::Cerenkovangle(Float_t n, Float_t beta)
{
+ // cerenkov angle from n and beta
// Compute the cerenkov angle
thetacer = acos (1./(n*beta));
return thetacer;
}
-
+//__________________________________________________________________________________________________
Float_t AliRICHRecon::SnellAngle(Float_t n1, Float_t n2, Float_t theta1)
-{
+{
+ // Snell law
// Compute the Snell angle
refractangle = asin(sinrefractangle);
return refractangle;
}
-
-
-void AliRICHRecon::HoughResponse()
-
-{
-
-// Implement Hough response pat. rec. method
-
- Float_t *HCSspace;
-
- int bin=0;
- int bin1=0;
- int bin2=0;
- int i, j, k, nCorrBand;
- float hcs[750],hcsw[750];
- float angle, weight;
- float lowerlimit,upperlimit;
-
- float etaPeak[100];
-
- int nBin;
-
- float etaPeakPos = -1;
-
- Int_t etaPeakCount = -1;
+//__________________________________________________________________________________________________
+Double_t AliRICHRecon::HoughResponse()
+{
+//
+//
+//
+ Int_t nChannels = (Int_t)(fThetaMax/fDTheta+0.5);
+ TH1F *phots = new TH1F("phots" ,"phots" ,nChannels,0,fThetaMax);
+ TH1F *photsw = new TH1F("photsw" ,"photsw" ,nChannels,0,fThetaMax);
+ TH1F *resultw = new TH1F("resultw","resultw",nChannels,0,fThetaMax);
+ Int_t nBin = (Int_t)(fThetaMax/fDTheta);
+ Int_t nCorrBand = (Int_t)(fWindowWidth/(2*fDTheta));
+ AliDebug(1,Form("Ring reconstruction for track with theta %f",GetTrackTheta()*TMath::RadToDeg()));
+ for (Int_t kPhot=0; kPhot< GetPhotonsNumber(); kPhot++){
+ SetPhotonIndex(kPhot);
+ Double_t angle = GetPhotonEta();
+ if(angle<0||angle>fThetaMax) continue;
+ phots->Fill(angle);
+ Int_t bin = (Int_t)(0.5+angle/(fDTheta));
+ Double_t weight=1.;
+ if(fIsWEIGHT){
+ Double_t lowerlimit = ((Float_t)bin)*fDTheta - 0.5*fDTheta;
+ SetThetaOfRing(lowerlimit);
+ FindAreaAndPortionOfRing();
+ Float_t area1 = GetAreaOfRing();
+ Double_t upperlimit = ((Float_t)bin)*fDTheta + 0.5*fDTheta;
+ SetThetaOfRing(upperlimit);
+ FindAreaAndPortionOfRing();
+ Float_t area2 = GetAreaOfRing();
+ AliDebug(1,Form("lowerlimit %f area %f ; upperlimit %f area %f",lowerlimit,area1,upperlimit,area2));
+ Float_t diffarea = area2 - area1;
+ if(diffarea>0){weight = 1./(area2-area1);}else{weight = 1.;}
+ }
+ AliDebug(1,Form("Calculated weight %f",weight));
+ photsw->Fill(angle,weight);
+ SetPhotonWeight(weight);
+ }
+ for (Int_t i=1; i<=nBin;i++){
+ Int_t bin1= i-nCorrBand;
+ Int_t bin2= i+nCorrBand;
+ if(bin1<1) bin1=1;
+ if(bin2>nBin)bin2=nBin;
+ Double_t sumPhots=phots->Integral(bin1,bin2);
+ if(sumPhots<fMinNumPhots) continue; // cut on minimum n. of photons per ring
+ Double_t sumPhotsw=photsw->Integral(bin1,bin2);
+ resultw->Fill((Float_t)((i+0.5)*fDTheta),sumPhotsw);
+ }
+// evaluate the "BEST" theta ckov as the maximum value of histogramm
+ Float_t *pVec = resultw->GetArray();
+ Int_t locMax = TMath::LocMax(nBin,pVec);
+ phots->Delete();photsw->Delete();resultw->Delete(); // Reset and delete objects
- Float_t ThetaCerenkov = 0.;
-
- nBin = (int)(0.5+fThetaMax/(fDTheta));
- nCorrBand = (int)(0.5+ fWindowWidth/(2 * fDTheta));
-
- memset ((void *)hcs, 0, fThetaBin*sizeof(float));
- memset ((void *)hcsw, 0, fThetaBin*sizeof(float));
-
- Int_t NPhotons = GetPhotonsNumber();
-
- Int_t WeightFlag = 0;
-
- for (k=0; k< NPhotons; k++) {
-
- SetPhotonIndex(k);
-
- angle = GetPhotonEta();
-
- if(angle == -999.) continue;
-
- if (angle>=fThetaMin && angle<= fThetaMax)
-
- {
-
- bin = (int)(0.5+angle/(fDTheta));
-
- bin1= bin-nCorrBand;
- bin2= bin+nCorrBand;
-
- // calculate weights
-
- if(kWEIGHT)
- {
- lowerlimit = ((Float_t)bin1)*fDTheta + 0.5*fDTheta;
- SetThetaOfRing(lowerlimit);
- FindAreaAndPortionOfRing();
- Float_t area1 = GetAreaOfRing();
-
- upperlimit = ((Float_t)bin2)*fDTheta + 0.5*fDTheta;
- SetThetaOfRing(upperlimit);
- FindAreaAndPortionOfRing();
- Float_t area2 = GetAreaOfRing();
-
- // cout << "lowerlimit" << lowerlimit << "upperlimit " << upperlimit << endl;
- Float_t diffarea = area2 - area1;
-
- if(diffarea>0)
- {
- weight = 1./(area2-area1);
- }
- else
- {
- WeightFlag = 1;
- weight = 1.;
- }
-
- // cout <<" low "<< lowerlimit << " up " << upperlimit <<
- // " area1 " << area1 << " area2 " << area2 << " weight " << weight << endl;
-
- }
- else
- {
- weight = 1.;
- }
-
- SetPhotonWeight(weight);
-
- // cout << "weight..." << weight << endl;
-
- h1_photons1->Fill(angle);
- h1_photons2->Fill(angle,weight);
+ return (Double_t)(locMax*fDTheta+0.5*fDTheta); //final most probable track theta ckov
+}//HoughResponse
+//__________________________________________________________________________________________________
+void AliRICHRecon::FindThetaCerenkov()
+{
+ // manage with weight for photons
- if (bin1<0) bin1=0;
- if (bin2>nBin) bin2=nBin;
-
- for (j=bin1; j<bin2; j++)
- {
- hcs[j] += 1;
- hcsw[j] += weight;
+ Float_t wei = 0.;
+ Float_t weightThetaCerenkov = 0.;
+
+ Double_t etaMin=9999.,etaMax=0.;
+ for(Int_t i=0;i<GetPhotonsNumber();i++){
+ SetPhotonIndex(i);
+ if(GetPhotonFlag() == 2){
+ Float_t photonEta = GetPhotonEta();
+ if(photonEta<etaMin) etaMin=photonEta;
+ if(photonEta>etaMax) etaMax=photonEta;
+ Float_t photonWeight = GetPhotonWeight();
+ weightThetaCerenkov += photonEta*photonWeight;
+ wei += photonWeight;
}
- }
- }
-
-// if(kDISPLAY)
-// {
-// for(Int_t j=0;j<750;j++)
-// {
-// h1_hcs->Fill(((Float_t)j),hcs[j]);
-// h1_hcsw->Fill(((Float_t)j),hcsw[j]);
-// }
-// }
-
- if(WeightFlag == 0)
- {
- HCSspace = hcsw;
- }
- else
- {
- HCSspace = hcs;
- // cout << " probems with weight...normal procedure adopted " << endl;
- }
-
- HoughFiltering(HCSspace);
-
- for (bin=0; bin <nBin; bin++) {
- angle = (bin+0.5) * (fDTheta);
- if (HCSspace[bin] && HCSspace[bin] > etaPeakPos) {
- etaPeakCount = 0;
- etaPeakPos = HCSspace[bin];
- etaPeak[0]=angle;
- }
- else {
- if (HCSspace[bin] == etaPeakPos) {
- etaPeak[++etaPeakCount] = angle;
- }
- }
- }
-
- for (i=0; i<etaPeakCount+1; i++) {
- ThetaCerenkov += etaPeak[i];
}
- if (etaPeakCount>=0) {
- ThetaCerenkov /= etaPeakCount+1;
- fThetaPeakPos = etaPeakPos;
- }
-
- SetThetaCerenkov(ThetaCerenkov);
-}
-
-
-void AliRICHRecon::HoughFiltering(float hcs[])
-{
-// hough filtering
-
- float hcsFilt[750];
- float k[5] = {0.05, 0.25, 0.4, 0.25, 0.05};
- int nx, i, nxDx;
- int sizeHCS;
- int nBin;
-
- nBin = (int)(1+fThetaMax/fDTheta);
- sizeHCS = fThetaBin*sizeof(float);
-
- memset ((void *)hcsFilt, 0, sizeHCS);
-
- for (nx = 0; nx < nBin; nx++) {
- for (i = 0; i < 5; i++) {
- nxDx = nx + (i-2);
- if (nxDx> -1 && nxDx<nBin)
- hcsFilt[nx] += hcs[nxDx] * k[i];
- }
- }
-
- for (nx = 0; nx < nBin; nx++) {
- hcs[nx] = hcsFilt[nx];
- }
-}
+ if(wei != 0.) weightThetaCerenkov /= wei; else weightThetaCerenkov = 0.;
+ SetThetaCerenkov(weightThetaCerenkov);
-void AliRICHRecon::FindWeightThetaCerenkov()
-{
-
- Float_t wei = 0.;
- Float_t WeightThetaCerenkov = 0.;
+ // estimate of the n. of bkg photons
+ SetThetaOfRing(etaMin); FindAreaAndPortionOfRing(); Double_t internalArea = GetAreaOfRing();
+ SetThetaOfRing(etaMax); FindAreaAndPortionOfRing(); Double_t externalArea = GetAreaOfRing();
- Int_t NPhotons = GetPhotonsNumber();
- for(Int_t i=0;i<NPhotons;i++)
- {
- SetPhotonIndex(i);
-
- if(GetPhotonFlag() == 2)
- {
- Float_t PhotonEta = GetPhotonEta();
- Float_t PhotonWeight = GetPhotonWeight();
- WeightThetaCerenkov += PhotonEta*PhotonWeight;
- wei += PhotonWeight;
- }
- }
-
- if(wei != 0.)
- {
- WeightThetaCerenkov /= wei;
- }
- else
- {
- WeightThetaCerenkov = 0.;
- }
+ Double_t effArea = (AliRICHParam::PcSizeX()-AliRICHParam::DeadZone())*(AliRICHParam::PcSizeY()-2*AliRICHParam::DeadZone());
+ Double_t nPhotBKG = (externalArea-internalArea)/effArea*fClusters->GetEntries();
+ if(nPhotBKG<0) nPhotBKG=0; //just protection from funny angles...
+ SetPhotBKG(nPhotBKG);
+ //
- SetThetaCerenkov(WeightThetaCerenkov);
-
- cout << " thetac weighted -> " << WeightThetaCerenkov << endl;
+ AliDebug(1,Form(" thetac weighted -> %f",weightThetaCerenkov));
}
-
-
-void AliRICHRecon::FlagPhotons()
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+Int_t AliRICHRecon::FlagPhotons(Double_t thetaCkovHough)
{
+// flag photon candidates if their individual theta ckov inside the window around theta ckov of Hough transform
+// Arguments: thetaCkovHough- value of most probable theta ckov for track as returned by HoughResponse()
+// Returns: number of photon candidates happened to be inside the window
- Int_t NPhotonHough = 0;
-
- Float_t ThetaCerenkov = GetThetaCerenkov();
- if(fDebug) cout << " fThetaCerenkov " << ThetaCerenkov << endl;
-
- Float_t ThetaDist= ThetaCerenkov - fThetaMin;
- Int_t steps = (Int_t)(ThetaDist / fDTheta);
+ Int_t steps = (Int_t)((thetaCkovHough - fThetaMin)/ fDTheta); //how many times we need to have fDTheta to fill the distance betwee fThetaMin and thetaCkovHough
Float_t tmin = fThetaMin + (Float_t)(steps - 1)*fDTheta;
Float_t tmax = fThetaMin + (Float_t)(steps)*fDTheta;
Float_t tavg = 0.5*(tmin+tmax);
- tmin = tavg - 0.5*fWindowWidth;
- tmax = tavg + 0.5*fWindowWidth;
-
- if(fDebug) cout << " tmin " << tmin << " tmax " << tmax << endl;
- if(fDebug) cout << " thetac " << ThetaCerenkov << endl;
-
- // Int_t CandidatePhotonsNumber = GetCandidatePhotonsNumber();
-
- Int_t NPhotons = GetPhotonsNumber();
-
- // for(Int_t i=0;i<CandidatePhotonsNumber;i++)
-
- for(Int_t i=0;i<NPhotons;i++)
- {
- SetPhotonIndex(i);
-
- Float_t PhotonEta = GetPhotonEta();
+ tmin = tavg - 0.5*fWindowWidth; tmax = tavg + 0.5*fWindowWidth;
- if(PhotonEta == -999.) continue;
-
- if(PhotonEta >= tmin && PhotonEta <= tmax)
- {
- SetPhotonFlag(2);
- NPhotonHough++;
- }
- }
- SetHoughPhotons(NPhotonHough);
-}
-
-void AliRICHRecon::DrawEvent(Int_t flag)
-{
-
- flag=1; // dummy to be removed...
-/*
- Float_t xGraph[3000],yGraph[3000];
-
- Float_t ThetaCerenkov;
-
- // Display event...
-
- gStyle->SetPalette(1,0);
-
- if(flag == 0)
- {
-
- // Display = new TCanvas("Display","Star Display",0,0,1200,750);
-
- Display->ToggleEventStatus();
- Display->Modified()
-
- text = new TText(0,0,"");
- text->SetTextFont(61);
- text->SetTextSize(0.03);
- text->SetTextAlign(22);
-
- Display->Resize();
-
- h2_disp->Reset();
-
- for(Int_t j=1;j<=nPixels;j++)
- {
- Float_t xpad = fPixels_localX[j-1];
- Float_t ypad = fPixels_localY[j-1];
- h2_disp->Fill(xpad,ypad,fPixels_charge[j-1]);
- }
-
- h2_disp->SetMaximum(200);
- // h2_disp->SetMaximum(1);
- h2_disp->SetStats(0);
- h2_disp->Draw("colz");
-
- for(Int_t i=0; i<nRichPrimaries;i++)
-
- {
-
- TrackPoints = new TMarker(fRichPrimaries_localPadX[i],
- fRichPrimaries_localPadY[i],3);
-
- TrackPoints->SetMarkerSize(1.5);
-
- Float_t pmod = sqrt(fRichPrimaries_localPadPx[i] * fRichPrimaries_localPadPx[i] +
- fRichPrimaries_localPadPy[i] * fRichPrimaries_localPadPy[i] +
- fRichPrimaries_localPadPz[i] * fRichPrimaries_localPadPz[i]);
-
- if(pmod < 1) TrackPoints->SetMarkerColor(kBlue);
- if(pmod > 1 && pmod < 2) TrackPoints->SetMarkerColor(kGreen);
- if(pmod > 2) TrackPoints->SetMarkerColor(kRed);
-
- TrackPoints->Draw();
-
- line = new TLine(-0.13,-42.,-0.13,42.);
- line->Draw();
- line = new TLine(0.13,-42.,0.13,42.);
- line->Draw();
- line = new TLine(-64.,-0.13,64.,-0.13);
- line->Draw();
- line = new TLine(-64.,0.13,64.,0.13);
- line->Draw();
-
- }
-
- return;
-
- }
-
- //
-
- // Draw rings...
-
- //
-
- // Float_t Xtoentr = GetEntranceX();
- // Float_t Ytoentr = GetEntranceY();
-
- // Float_t pmod = GetTrackMomentum();
- // Float_t TrackTheta = GetTrackTheta();
- // Float_t TrackPhi = GetTrackPhi();
-
- SetPhotonEnergy(6.85);
- SetFreonRefractiveIndex();
-
- SetEmissionPoint(RadiatorWidth/2.);
-
- ThetaCerenkov = GetThetaCerenkov();
-
- if (ThetaCerenkov == 999.) return;
-
- Int_t nPointsToDraw = 0;
-
- for(Int_t i=0;i<99;i++)
- {
- Float_t phpad = 2*TMath::Pi()*i/99;
- SetThetaPhotonInTRS(ThetaCerenkov);
- SetPhiPhotonInTRS(phpad);
- FindPhotonAnglesInDRS();
- Float_t Radius = FromEmissionToCathode();
-
- if (Radius == 999.) continue;
-
- Float_t ShiftX = GetShiftX();
- Float_t ShiftY = GetShiftY();
-
- Float_t XPointRing = GetXPointOnCathode() + ShiftX;
- Float_t YPointRing = GetYPointOnCathode() + ShiftY;
-
- SetDetectorWhereX(XPointRing);
- SetDetectorWhereY(YPointRing);
-
- Int_t Zone = CheckDetectorAcceptance();
-
- if (Zone != 0)
- {
- FindIntersectionWithDetector();
- xGraph[nPointsToDraw] = GetIntersectionX();
- yGraph[nPointsToDraw] = GetIntersectionY();
- nPointsToDraw++;
- }
- else
- {
- xGraph[nPointsToDraw] = GetXPointOnCathode() + GetShiftX();
- yGraph[nPointsToDraw] = GetYPointOnCathode() + GetShiftY();
- nPointsToDraw++;
- }
- }
-
- xGraph[nPointsToDraw] = xGraph[0];
- yGraph[nPointsToDraw] = yGraph[0];
-
- poll = new TPolyLine(nPointsToDraw+1,xGraph,yGraph);
- poll->SetLineColor(2);
- poll->SetLineWidth(3);
-
- Display->Update();
-
- // waiting();
- poll->Draw();
-
- for(Int_t j=0;j<nHits;j++)
- {
-
- Float_t xhit = fHits_localX[j];
- Float_t yhit = fHits_localY[j];
-
- SetPhotonIndex(j);
- Int_t FlagPhoton = GetPhotonFlag();
-
-// if(FlagPhoton >= 1)
-// {
-
-// Photon = new TMarker(xhit,yhit,4);
-// Photon->SetMarkerSize(1.5);
-// Photon->Draw("same");
-
-// }
-
-
- if(FlagPhoton == 2)
- {
-
- PhotonAcc = new TMarker(xhit,yhit,30);
- PhotonAcc->SetMarkerSize(1.5);
- PhotonAcc->SetMarkerColor(50);
- PhotonAcc->Draw("same");
-
- }
- }
-
- Display->Update();
-
-// waiting();
-// h1_photons->Draw();
-// Display->Update();
-
-// waiting();
-// h1_photacc->Draw();
-// Display->Update();
-
-// waiting();
-
-// Display->Update();
-
-// h1_photons->Reset();
-// h1_photacc->Reset();
-
-*/
-}
-
-Float_t AliRICHRecon::FindMassOfParticle()
-{
-
- Float_t pmod = GetTrackMomentum();
-
- SetPhotonEnergy(6.85);
- SetFreonRefractiveIndex();
-
- Float_t ThetaCerenkov = GetThetaCerenkov();
- FindBetaFromTheta(ThetaCerenkov);
-
- Double_t beta = (Double_t)(GetBetaOfParticle());
- Double_t den = 1. - beta*beta;
- if(den<=0.) return 999.;
-
- Double_t gamma = 1./TMath::Sqrt(den);
-
- Float_t mass = pmod/(beta*(Float_t)gamma);
-
- return mass;
-}
-
-
-void AliRICHRecon::FillHistograms()
-{
-
- Float_t FittedTrackTheta, FittedTrackPhi;
-
- Float_t ThetaCerenkov = GetThetaCerenkov();
- if(ThetaCerenkov == 999.) return;
-
- Float_t VertZ = GetEventVertexZ();
-
- Float_t TrackTheta = GetTrackTheta();
- Float_t TrackPhi = GetTrackPhi();
- Float_t pmod = GetTrackMomentum();
- Float_t pt = GetTrackPt();
- Float_t TrackEta = GetTrackEta();
- Int_t q = GetTrackCharge();
- Float_t TPCLastZ = GetTrackTPCLastZ();
- Float_t MinDist = GetMinDist();
-
- FittedTrackTheta = GetFittedTrackTheta();
- FittedTrackPhi = GetFittedTrackPhi();
- Int_t FittedNPhotonHough = GetFittedHoughPhotons();
-
- if(fDebug)
- {
- cout << " p " << pmod << " ThetaC " << ThetaCerenkov
- << " rings " << NRings << endl;
- }
-
- Int_t NPhotonHough = GetHoughPhotons();
- Float_t NPhotonHoughNorm = GetHoughPhotonsNorm();
- Float_t InRing = GetPortionOfRing();
-
- Float_t MassOfParticle = FindMassOfParticle();
-
- Float_t HoughArea = GetHoughArea();
- Float_t Multiplicity = GetEventMultiplicity();
-
-// cout << " area " << HoughArea << " mult " << Multiplicity << endl;
-
- Float_t var[20];
-
-// var[0] = (Float_t)runID;
-// var[1] = (Float_t)evID;
- var[0] = 0;
- var[1] = 0;
- var[2] = VertZ;
- var[3] = pmod;
- var[4] = pt;
- var[5] = TrackEta;
- var[6] = TrackTheta;
- var[7] = TrackPhi;
- var[8] = FittedTrackTheta;
- var[9] = FittedTrackPhi;
- var[10] = q;
- var[11] = ThetaCerenkov;
- var[12] = (Float_t)NPhotonHough;
- var[13] = (Float_t)FittedNPhotonHough;
- var[14] = InRing;
- var[15] = MassOfParticle;
- var[16] = HoughArea;
- var[17] = Multiplicity;
- var[18] = TPCLastZ;
- var[19] = MinDist;
-
- hn->Fill(var);
-
- h1_mass->Fill(MassOfParticle);
- h2_mvsp->Fill(pmod,MassOfParticle);
- h2_mvst->Fill(ThetaCerenkov,MassOfParticle);
-
- FittedTrackTheta = GetFittedTrackTheta();
- FittedTrackPhi = GetFittedTrackPhi();
-
- Float_t DiffTheta = FittedTrackTheta - TrackTheta;
- Float_t DiffPhi = FittedTrackPhi - TrackPhi;
-
- h1_diffTrackTheta -> Fill(DiffTheta);
- h1_diffTrackPhi -> Fill(DiffPhi);
-
- if(ThetaCerenkov > 0.505 && ThetaCerenkov < 0.605)
- {
- SetPhotonEnergy(6.85);
- SetFreonRefractiveIndex();
-
- Float_t pmom = GetTrackMomentum();
- Float_t beta = 1./(cos(ThetaCerenkov)*GetFreonRefractiveIndex());
- Float_t gamma = 1./sqrt(1.-beta*beta);
-
- Float_t pmomnew = 0.93828*beta*gamma;
- Float_t deltap = pmomnew - pmom;
- h1_deltap->Fill(deltap);
- Float_t deltapop = deltap/pmom;
- h1_deltapop->Fill(deltapop);
-
- h1_nprotons->Fill((Float_t)NPhotonHoughNorm);
- }
-
- if(q > 0)
- {
- h2_tvsppos->Fill(pmod,ThetaCerenkov);
- hp_1pos->Fill(ThetaCerenkov,(Float_t)NPhotonHough);
- hp_1posnorm->Fill(ThetaCerenkov,(Float_t)NPhotonHoughNorm);
- h2_1pos->Fill(pmod,(Float_t)NPhotonHough);
- h2_1posnorm->Fill(pmod,(Float_t)NPhotonHoughNorm);
- h1_houghpos->Fill(ThetaCerenkov);
- }
-else
- {
- h2_tvspneg->Fill(pmod,ThetaCerenkov);
- hp_1neg->Fill(ThetaCerenkov,(Float_t)NPhotonHough);
- hp_1negnorm->Fill(ThetaCerenkov,(Float_t)NPhotonHoughNorm);
- h2_1neg->Fill(pmod,(Float_t)NPhotonHough);
- h2_1negnorm->Fill(pmod,(Float_t)NPhotonHoughNorm);
- h1_houghneg->Fill(ThetaCerenkov);
+ Int_t iInsideCnt = 0; //count photons which theta inside prdefined window
+ for(Int_t i=0;i<GetPhotonsNumber();i++){//photon candidates loop
+ SetPhotonIndex(i); Float_t photonEta = GetPhotonEta();
+ if(photonEta == -999.) continue;
+ if(photonEta >= tmin && photonEta <= tmax) { SetPhotonFlag(2); iInsideCnt++;}
}
-
- Int_t NPhotons = GetPhotonsNumber();
-
- for (Int_t j=0; j < NPhotons;j++)
-
- {
- SetPhotonIndex(j);
-
- Float_t eta = GetPhotonEta();
-
- if(GetPhotonFlag() == 2)
- {
- h1_photacc->Fill(eta);
- Float_t photaccspread = eta - ThetaCerenkov;
- h1_photaccspread->Fill(photaccspread);
- }
-
- }
-}
-
-void AliRICHRecon::Minimization()
-{
-
- Double_t arglist;
- Int_t ierflag = 0;
-
- static Double_t vstart[2];
- static Double_t lower[2], upper[2];
- static Double_t step[2]={0.001,0.001};
-
- Double_t TrackThetaNew,TrackPhiNew;
- TString chname;
- Double_t eps, b1, b2;
- Int_t ierflg;
-
- gMyMinuit = new TMinuit(2);
- gMyMinuit->SetObjectFit((TObject *)this);
- gMyMinuit->SetFCN(fcn);
- gMyMinuit->mninit(5,10,7);
-
- vstart[0] = (Double_t)GetTrackTheta();
- vstart[1] = (Double_t)GetTrackPhi();
-
- lower[0] = vstart[0] - 0.03;
- if(lower[0] < 0) lower[0] = 0.;
- upper[0] = vstart[0] + 0.03;
- lower[1] = vstart[1] - 0.03;
- upper[1] = vstart[1] + 0.03;
-
-
- gMyMinuit->mnparm(0,"theta",vstart[0],step[0],lower[0],upper[0],ierflag);
- gMyMinuit->mnparm(1," phi ",vstart[1],step[1],lower[1],upper[1],ierflag);
-
- arglist = -1;
-
- // gMyMinuit->FixParameter(0);
-
- gMyMinuit->SetPrintLevel(-1);
-// gMyMinuit->mnexcm("SET PRI",&arglist, 1, ierflag);
- gMyMinuit->mnexcm("SET NOGR",&arglist, 1, ierflag);
- gMyMinuit->mnexcm("SET NOW",&arglist, 1, ierflag);
- arglist = 1;
- gMyMinuit->mnexcm("SET ERR", &arglist, 1,ierflg);
- arglist = -1;
-
- // gMyMinuit->mnscan();
-
-// gMyMinuit->mnexcm("SIMPLEX",&arglist, 0, ierflag);
- gMyMinuit->mnexcm("MIGRAD",&arglist, 0, ierflag);
- gMyMinuit->mnexcm("EXIT" ,&arglist, 0, ierflag);
-
- gMyMinuit->mnpout(0,chname, TrackThetaNew, eps , b1, b2, ierflg);
- gMyMinuit->mnpout(1,chname, TrackPhiNew, eps , b1, b2, ierflg);
-
- //values after the fit...
- SetFittedTrackTheta((Float_t)TrackThetaNew);
- SetFittedTrackPhi((Float_t)TrackPhiNew);
-
- delete gMyMinuit;
-
-}
-
-void AliRICHRecon::EstimationOfTheta()
-{
-
- Int_t NPhotons = 0;
-
- Float_t ShiftX = GetShiftX();
- Float_t ShiftY = GetShiftY();
-
- Float_t *CandidatePhotonX = GetCandidatePhotonX();
- Float_t *CandidatePhotonY = GetCandidatePhotonY();
-
- Int_t NPhotonsCandidates = GetCandidatePhotonsNumber();
-
- // cout << "MINIM: Nphotons " << NPhotonsCandidates << endl;
-
- for (Int_t j=0; j < NPhotonsCandidates; j++)
- {
-
- SetPhotonIndex(j);
-
- if(!GetPhotonFlag()) continue;
-
- Float_t Xtoentr = CandidatePhotonX[j] - ShiftX;
- Float_t Ytoentr = CandidatePhotonY[j] - ShiftY;
-
- SetEntranceX(Xtoentr);
- SetEntranceY(Ytoentr);
-
- FindPhiPoint();
-
- FindThetaPhotonCerenkov();
-
- Float_t ThetaPhotonCerenkov = GetThetaPhotonCerenkov();
-
- // cout << " ACCEPTED!!! " << ThetaPhotonCerenkov << endl;
-
- SetPhotonEta(ThetaPhotonCerenkov);
-
- NPhotons++;
-
- }
-
- Float_t xmean = 0.;
- Float_t x2mean = 0.;
- Int_t nev = 0;
-
- for (Int_t j=0; j < NPhotonsCandidates;j++)
- {
- SetPhotonIndex(j);
-
- Float_t eta = GetPhotonEta();
-
- if(eta != -999.)
- {
- if(GetPhotonFlag() == 2)
- {
- xmean += eta;
- x2mean += eta*eta;
- nev++;
- }
- }
- }
-
- if(nev > 0)
- {
- xmean /=(Float_t)nev;
- x2mean /=(Float_t)nev;
- } else {
- xmean = 0.;
- x2mean = 0.;
- }
-
- Float_t RMS = sqrt(x2mean - xmean*xmean);
-
- // cout << " RMS " << RMS;
-
- SetEstimationOfTheta(xmean);
- SetEstimationOfThetaRMS(RMS);
-}
-
-void fcn(Int_t /*&npar*/, Double_t* /*gin*/, Double_t &f, Double_t *par, Int_t iflag)
-{
- AliRICHRecon *gMyRecon = (AliRICHRecon*)gMyMinuit->GetObjectFit();
-
- Float_t p0 = (Float_t)par[0];
- Float_t p1 = (Float_t)par[1];
-
- gMyRecon->SetTrackTheta(p0);
- gMyRecon->SetTrackPhi(p1);
-
- gMyRecon->EstimationOfTheta();
- Float_t RMS = gMyRecon->GetEstimationOfThetaRMS();
-
- Int_t HoughPhotons = gMyRecon->GetHoughPhotons();
-
-
- f = (Double_t)(1000*RMS/(Float_t)HoughPhotons);
-
- if(fDebug) cout << " f " << f
- << " theta " << par[0] << " phi " << par[1]
- << " HoughPhotons " << HoughPhotons << endl;
-
- if(fDebug&&iflag == 3)
- {
- cout << " --- end convergence...summary --- " << endl;
- cout << " theta " << par[0] << endl;
- cout << " phi " << par[1] << endl;
- }
-}
-
-void AliRICHRecon::waiting()
-{
- if(!kDISPLAY) return;
- cout << " Press any key to continue...";
-
-// gSystem->ProcessEvents();
- getchar();
-
- cout << endl;
-
- return;
-}
-
-/*
-void ~AliRICHRecon()
-{
-}
-*/
+ return iInsideCnt;
+}//FlagPhotons
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff