X-Git-Url: http://git.uio.no/git/?p=u%2Fmrichter%2FAliRoot.git;a=blobdiff_plain;f=PHOS%2FAliPHOSvFast.cxx;h=32ae66feac0e115485fff0cc7572effee72791f8;hp=c7cb322084d0395c679d73a2dc34601113e4aed3;hb=52d2af540e951de3e6bebc08d08409d2674df185;hpb=2ab0c72500f5baaae8a0a5299ab6566b50c278b4 diff --git a/PHOS/AliPHOSvFast.cxx b/PHOS/AliPHOSvFast.cxx index c7cb322084d..32ae66feac0 100644 --- a/PHOS/AliPHOSvFast.cxx +++ b/PHOS/AliPHOSvFast.cxx @@ -1,4 +1,4 @@ -/************************************************************************** + /************************************************************************** * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * * * * Author: The ALICE Off-line Project. * @@ -15,6 +15,17 @@ /* $Id$ */ +/* History of cvs commits: + * + * $Log$ + * Revision 1.30 2006/09/13 07:31:01 kharlov + * Effective C++ corrections (T.Pocheptsov) + * + * Revision 1.29 2005/05/28 14:19:05 schutz + * Compilation warnings fixed by T.P. + * + */ + //_________________________________________________________________________ // Implementation of the PHOS manager class for fast simulations // Tracks particles until the reach a grossly designed PHOS module @@ -25,63 +36,66 @@ //*-- Author: Yves Schutz (SUBATECH) // --- ROOT system --- - -#include "TBRIK.h" -#include "TNode.h" -#include "TParticle.h" + +#include +#include +#include +#include "TClonesArray.h" +#include // --- Standard library --- -#include - // --- AliRoot header files --- - +#include "AliPHOSFastRecParticle.h" +#include "AliPHOSGeometry.h" +#include "AliPHOSLoader.h" #include "AliPHOSvFast.h" #include "AliRun.h" -#include "AliConst.h" ClassImp(AliPHOSvFast) -//____________________________________________________________________________ -AliPHOSvFast::AliPHOSvFast() +AliPHOSvFast::AliPHOSvFast() : + fBigBoxX(0.), + fBigBoxY(0.), + fBigBoxZ(0.), + fFastRecParticles(0), + fNRecParticles(0), + fRan(0), + fResPara1(0.), + fResPara2(0.), + fResPara3(0.), + fPosParaA0(0.), + fPosParaA1(0.), + fPosParaB0(0.), + fPosParaB1(0.), + fPosParaB2(0.) { - // ctor - - fFastRecParticles = 0 ; - fNRecParticles = 0 ; + // default ctor : initialize data member } //____________________________________________________________________________ AliPHOSvFast::AliPHOSvFast(const char *name, const char *title): - AliPHOS(name,title) + AliPHOS(name,title), + fBigBoxX(0.), + fBigBoxY(0.), + fBigBoxZ(0.), + fFastRecParticles(new AliPHOSFastRecParticle::FastRecParticlesList("AliPHOSFastRecParticle", 100)), + fNRecParticles(0), + fRan(0), + fResPara1(0.030), // GeV + fResPara2(0.00003), + fResPara3(0.00001), + fPosParaA0(2.87), // mm + fPosParaA1(-0.0975), + fPosParaB0(0.257), + fPosParaB1(0.137), + fPosParaB2(0.00619) { // ctor - - // gets an instance of the geometry parameters class - - fGeom = AliPHOSGeometry::GetInstance(title, "") ; - - if (fGeom->IsInitialized() ) - cout << "AliPHOSvFast : PHOS geometry intialized for " << fGeom->GetName() << endl ; - else - cout << "AliPHOSvFast : PHOS geometry initialization failed !" << endl ; - - SetBigBox(0, fGeom->GetOuterBoxSize(0) ) ; - SetBigBox(1, fGeom->GetOuterBoxSize(1) + fGeom->GetCPVBoxSize(1) ) ; - SetBigBox(2, fGeom->GetOuterBoxSize(0) ); - - fNRecParticles = 0 ; - fFastRecParticles = new AliPHOSFastRecParticle::FastRecParticlesList("AliPHOSFastRecParticle", 100) ; - - fResPara1 = 0.030 ; // GeV - fResPara2 = 0.00003 ; - fResPara3 = 0.00001 ; - - fPosParaA0 = 2.87 ; // mm - fPosParaA1 = -0.0975 ; - fPosParaB0 = 0.257 ; - fPosParaB1 = 0.137 ; - fPosParaB2 = 0.00619 ; + // create the Loader + SetBigBox(0, GetGeometry()->GetOuterBoxSize(0) ) ; + SetBigBox(1, GetGeometry()->GetOuterBoxSize(3) + GetGeometry()->GetCPVBoxSize(1) ) ; + SetBigBox(2, GetGeometry()->GetOuterBoxSize(2) ); } //____________________________________________________________________________ @@ -104,63 +118,6 @@ void AliPHOSvFast::AddRecParticle(const AliPHOSFastRecParticle & rp) fNRecParticles++ ; } -//____________________________________________________________________________ -void AliPHOSvFast::BuildGeometry() -{ - // Build the PHOS geometry for the ROOT display - //BEGIN_HTML - /* -

- PHOS FAST in ALICE displayed by root -

-

All Views

-

-

- Fast All Views -

-

Front View

-

-

- Fast Front View -

- */ - //END_HTML - - const Int_t kColorPHOS = kRed ; - - Double_t const kRADDEG = 180.0 / kPI ; - - new TBRIK( "BigBox", "PHOS box", "void", GetBigBox(0)/2, - GetBigBox(1)/2, - GetBigBox(2)/2 ); - - // position PHOS into ALICE - - Float_t r = fGeom->GetIPtoCrystalSurface() + GetBigBox(1) / 2.0 ; - Int_t number = 988 ; - Float_t pphi = TMath::ATan( GetBigBox(0) / ( 2.0 * fGeom->GetIPtoCrystalSurface() ) ) ; - pphi *= kRADDEG ; - TNode * top = gAlice->GetGeometry()->GetNode("alice") ; - - char * nodename = new char[20] ; - char * rotname = new char[20] ; - - for( Int_t i = 1; i <= fGeom->GetNModules(); i++ ) { - Float_t angle = pphi * 2 * ( i - fGeom->GetNModules() / 2.0 - 0.5 ) ; - sprintf(rotname, "%s%d", "rot", number++) ; - new TRotMatrix(rotname, rotname, 90, angle, 90, 90 + angle, 0, 0); - top->cd(); - sprintf(nodename,"%s%d", "Module", i) ; - Float_t x = r * TMath::Sin( angle / kRADDEG ) ; - Float_t y = -r * TMath::Cos( angle / kRADDEG ) ; - TNode * bigboxnode = new TNode(nodename, nodename, "BigBox", x, y, 0, rotname ) ; - bigboxnode->SetLineColor(kColorPHOS) ; - fNodes->Add(bigboxnode) ; - } - delete[] nodename ; - delete[] rotname ; -} - //____________________________________________________________________________ void AliPHOSvFast::CreateGeometry() { @@ -188,14 +145,14 @@ void AliPHOSvFast::CreateGeometry() // --- Position PHOS mdules in ALICE setup --- Int_t idrotm[99] ; - Double_t const kRADDEG = 180.0 / kPI ; + Double_t const kRADDEG = 180.0 / TMath::Pi() ; - for( Int_t i = 1; i <= fGeom->GetNModules(); i++ ) { + for( Int_t i = 1; i <= GetGeometry()->GetNModules(); i++ ) { - Float_t angle = fGeom->GetPHOSAngle(i) ; + Float_t angle = GetGeometry()->GetPHOSAngle(i) ; AliMatrix(idrotm[i-1], 90.0, angle, 90.0, 90.0+angle, 0.0, 0.0) ; - Float_t r = fGeom->GetIPtoCrystalSurface() + GetBigBox(1) / 2.0 ; + Float_t r = GetGeometry()->GetIPtoCrystalSurface() + GetBigBox(1) / 2.0 ; Float_t xP1 = r * TMath::Sin( angle / kRADDEG ) ; Float_t yP1 = -r * TMath::Cos( angle / kRADDEG ) ; @@ -227,7 +184,7 @@ void AliPHOSvFast::Init(void) } //___________________________________________________________________________ -Float_t AliPHOSvFast::GetBigBox(Int_t index) +Float_t AliPHOSvFast::GetBigBox(Int_t index) const { // Get the X, Y or Z dimension of the box describing a PHOS module @@ -246,26 +203,21 @@ Float_t AliPHOSvFast::GetBigBox(Int_t index) } return rv ; } - //___________________________________________________________________________ -void AliPHOSvFast::MakeBranch(Option_t* opt, char *file) + +void AliPHOSvFast::MakeBranch(Option_t* opt) { // Create new branch in the current reconstructed Root Tree - - AliDetector::MakeBranch(opt,file) ; - - char branchname[10]; - sprintf(branchname,"%s",GetName()); - char *cd = strstr(opt,"R"); + AliDetector::MakeBranch(opt); + const char *cd = strstr(opt,"R"); - if (fFastRecParticles && gAlice->TreeR() && cd) { - gAlice->MakeBranchInTree(gAlice->TreeR(), - branchname, &fFastRecParticles, fBufferSize, file); + if (fFastRecParticles && fLoader->TreeR() && cd) { + MakeBranchInTree(fLoader->TreeR(), GetName(), &fFastRecParticles, fBufferSize, 0); } } - //____________________________________________________________________________ -Double_t AliPHOSvFast::MakeEnergy(const Double_t energy) + +Double_t AliPHOSvFast::MakeEnergy(Double_t energy) { // Smears the energy according to the energy dependent energy resolution. // A gaussian distribution is assumed @@ -273,9 +225,9 @@ Double_t AliPHOSvFast::MakeEnergy(const Double_t energy) Double_t sigma = SigmaE(energy) ; return fRan.Gaus(energy, sigma) ; } - //____________________________________________________________________________ -TVector3 AliPHOSvFast::MakePosition(const Double_t energy, const TVector3 pos, const Double_t theta, const Double_t phi) + +TVector3 AliPHOSvFast::MakePosition(Double_t energy, TVector3 pos, Double_t theta, Double_t phi) { // Smears the impact position according to the energy dependent position resolution // A gaussian position distribution is assumed @@ -295,7 +247,7 @@ TVector3 AliPHOSvFast::MakePosition(const Double_t energy, const TVector3 pos, c } //____________________________________________________________________________ -void AliPHOSvFast::MakeRecParticle(const Int_t modid, const TVector3 pos, AliPHOSFastRecParticle & rp) +void AliPHOSvFast::MakeRecParticle(Int_t modid, TVector3 pos, AliPHOSFastRecParticle & rp) { // Modify the primary particle properties according // 1. the response function of PHOS @@ -317,7 +269,7 @@ void AliPHOSvFast::MakeRecParticle(const Int_t modid, const TVector3 pos, AliPHO // get the angle of incidence Double_t incidencetheta = 90. * TMath::Pi() /180 - rp.Theta() ; - Double_t incidencephi = ( 270 + fGeom->GetPHOSAngle(modid) ) * TMath::Pi() / 180. - rp.Phi() ; + Double_t incidencephi = ( 270 + GetGeometry()->GetPHOSAngle(modid) ) * TMath::Pi() / 180. - rp.Phi() ; // get the detected direction @@ -344,59 +296,56 @@ Int_t AliPHOSvFast::MakeType(AliPHOSFastRecParticle & rp ) else test = rp.GetPdgCode() ; + Fatal("MakeType", "SHOULD NOT BE USED until values of probabilities are properly set ") ; + // NB: ALL VALUES SHOULD BE CHECKED !!!! switch (test) { - case 22: // it's a photon + case 22: // it's a photon // NB: ALL VALUES SHOLD BE CHECKED !!!! ran = fRan.Rndm() ; - if ( ran <= 0.5 ) // 50 % - rv = AliPHOSFastRecParticle::kGAMMA ; - else { - ran = fRan.Rndm() ; - if( ran <= 0.9498 ) - rv = AliPHOSFastRecParticle::kNEUTRALEM ; - else - rv = AliPHOSFastRecParticle::kNEUTRALHA ; - } + if( ran <= 0.9498 ) + rv = AliPHOSFastRecParticle::kNEUTRALHAFAST ; + else + rv = AliPHOSFastRecParticle::kNEUTRALEMFAST ; break ; case 2112: // it's a neutron ran = fRan.Rndm() ; if ( ran <= 0.9998 ) - rv = AliPHOSFastRecParticle::kNEUTRALHA ; + rv = AliPHOSFastRecParticle::kNEUTRALHASLOW ; else - rv = AliPHOSFastRecParticle::kNEUTRALEM ; + rv = AliPHOSFastRecParticle::kNEUTRALEMSLOW ; break ; - + case -2112: // it's a anti-neutron ran = fRan.Rndm() ; if ( ran <= 0.9984 ) - rv = AliPHOSFastRecParticle::kNEUTRALHA ; + rv = AliPHOSFastRecParticle::kNEUTRALHASLOW ; else - rv = AliPHOSFastRecParticle::kNEUTRALEM ; + rv = AliPHOSFastRecParticle::kNEUTRALEMSLOW ; break ; case 11: // it's a electron ran = fRan.Rndm() ; if ( ran <= 0.9996 ) - rv = AliPHOSFastRecParticle::kELECTRON ; + rv = AliPHOSFastRecParticle::kCHARGEDEMFAST ; else - rv = AliPHOSFastRecParticle::kCHARGEDHA ; + rv = AliPHOSFastRecParticle::kCHARGEDHAFAST ; break; case -11: // it's a positon ran = fRan.Rndm() ; if ( ran <= 0.9996 ) - rv = AliPHOSFastRecParticle::kELECTRON ; + rv = AliPHOSFastRecParticle::kCHARGEDEMFAST ; else - rv = AliPHOSFastRecParticle::kCHARGEDHA ; + rv = AliPHOSFastRecParticle::kCHARGEDHAFAST ; break; case -1: // it's a charged ran = fRan.Rndm() ; if ( ran <= 0.9996 ) - rv = AliPHOSFastRecParticle::kCHARGEDHA ; + rv = AliPHOSFastRecParticle::kCHARGEDHAFAST ; else - rv = AliPHOSFastRecParticle::kGAMMA ; + rv = AliPHOSFastRecParticle::kNEUTRALHAFAST ; break ; } @@ -457,7 +406,7 @@ Double_t AliPHOSvFast::SigmaE(Double_t energy) } //____________________________________________________________________________ -Double_t AliPHOSvFast::SigmaP(Double_t energy, Int_t incidence) +Double_t AliPHOSvFast::SigmaP(Double_t energy, Double_t incidence) { // Calculates the energy dependent position resolution @@ -471,30 +420,37 @@ Double_t AliPHOSvFast::SigmaP(Double_t energy, Int_t incidence) void AliPHOSvFast::StepManager(void) { // Only verifies if the particle reaches PHOS and stops the tracking - - Int_t primary = gAlice->GetPrimary( gAlice->CurrentTrack() ); + TLorentzVector lv ; gMC->TrackPosition(lv) ; TVector3 pos = lv.Vect() ; Int_t modid ; gMC->CurrentVolID(modid); - // Makes a reconstructed particle from the primary particle + Float_t energy = gMC->Etot() ; //Total energy of current track - TClonesArray * particlelist = gAlice->Particles() ; - TParticle * part = (TParticle *)particlelist->At(primary) ; + //Calculating mass of current particle + TDatabasePDG * pdg = TDatabasePDG::Instance() ; + TParticlePDG * partPDG = pdg->GetParticle(gMC->TrackPid()) ; + Float_t mass = partPDG->Mass() ; - AliPHOSFastRecParticle rp(*part) ; - rp.SetPrimary(primary) ; + if(energy > mass){ + pos.SetMag(TMath::Sqrt(energy*energy-mass*mass)) ; + TLorentzVector pTrack(pos, energy) ; - // Adds the response of PHOS to the particle + TParticle * part = new TParticle(gMC->TrackPid(), 0,-1,-1,-1,-1, pTrack, lv) ; + + AliPHOSFastRecParticle rp(*part) ; - MakeRecParticle(modid, pos, rp) ; - - // add the primary particle to the FastRecParticles list + // Adds the response of PHOS to the particle + MakeRecParticle(modid, pos, rp) ; + + // add the `track' particle to the FastRecParticles list - AddRecParticle(rp) ; + AddRecParticle(rp) ; + part->Delete() ; + } // stop the track as soon PHOS is reached gMC->StopTrack() ;