#include "AliPHOS.h"
#include "AliPHOSPIDv1.h"
#include "AliPHOSClusterizerv1.h"
+#include "AliPHOSEmcRecPoint.h"
#include "AliPHOSTrackSegment.h"
#include "AliPHOSTrackSegmentMakerv1.h"
#include "AliPHOSRecParticle.h"
// Make all memory allocations that are not possible in default constructor
// Add the PID task to the list of PHOS tasks
- AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName.Data()) ;
+ AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
+ if(!gime)
+ gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName.Data()) ;
if ( !gime->PID() )
gime->PostPID(this) ;
void AliPHOSPIDv1::InitParameters()
{
// Initialize PID parameters
+ fWrite = kTRUE ;
fRecParticlesInRun = 0 ;
fNEvent = 0 ;
fRecParticlesInRun = 0 ;
+ fBayesian = kTRUE ;
SetParameters() ; // fill the parameters matrix from parameters file
SetEventRange(0,-1) ;
+
+ // initialisation of response function parameters
+ // Tof
+ // Photons
+ fTphoton[0] = 0.218 ;
+ //fTphoton[0] = 1. ;
+ fTphoton[1] = 1.55E-8 ;
+ fTphoton[2] = 5.05E-10 ;
+ fTFphoton = new TFormula("ToF response to photons" , "gaus") ;
+ fTFphoton->SetParameters( fTphoton[0], fTphoton[1], fTphoton[2]) ;
+// // Electrons
+// fTelectron[0] = 0.2 ;
+// fTelectron[1] = 1.55E-8 ;
+// fTelectron[2] = 5.35E-10 ;
+// fTFelectron = new TFormula("ToF response to electrons" , "gaus") ;
+// fTFelectron->SetParameters( fTelectron[0], fTelectron[1], fTelectron[2]) ;
+// // Muons
+// fTmuon[0] = 0.2 ;
+// fTmuon[1] = 1.55E-8 ;
+// fTmuon[2] = 5.1E-10 ;
+// fTFmuon = new TFormula("ToF response to muons" , "gaus") ;
+// fTFmuon->SetParameters( fTmuon[0], fTmuon[1], fTmuon[2]) ;
+
+ // Pions
+ //Gaus (0 to max probability)
+ fTpiong[0] = 0.0971 ;
+ //fTpiong[0] = 1. ;
+ fTpiong[1] = 1.58E-8 ;
+ fTpiong[2] = 5.69E-10 ;
+ fTFpiong = new TFormula("ToF response to pions" , "gaus") ;
+ fTFpiong->SetParameters( fTpiong[0], fTpiong[1], fTpiong[2]) ;
+ // Landau (max probability to inf)
+// fTpionl[0] = 0.05 ;
+// //fTpionl[0] = 5.53 ;
+// fTpionl[1] = 1.68E-8 ;
+// fTpionl[2] = 5.38E-10 ;
+// fTFpionl = new TFormula("ToF response to pions" , "landau") ;
+// fTFpionl->SetParameters( fTpionl[0], fTpionl[1], fTpionl[2]) ;
+
+
+ // Kaons
+ //Gaus (0 to max probability)
+ fTkaong[0] = 0.0542 ;
+ //fTkaong[0] = 1. ;
+ fTkaong[1] = 1.64E-8 ;
+ fTkaong[2] = 6.07-10 ;
+ fTFkaong = new TFormula("ToF response to kaon" , "gaus") ;
+ fTFkaong->SetParameters( fTkaong[0], fTkaong[1], fTkaong[2]) ;
+ //Landau (max probability to inf)
+ fTkaonl[0] = 0.264 ;
+ //fTkaonl[0] = 5.53 ;
+ fTkaonl[1] = 1.68E-8 ;
+ fTkaonl[2] = 4.10E-10 ;
+ fTFkaonl = new TFormula("ToF response to kaon" , "landau") ;
+ fTFkaonl->SetParameters( fTkaonl[0], fTkaonl[1], fTkaonl[2]) ;
+
+ //Heavy Hadrons
+ //Gaus (0 to max probability)
+ fThhadrong[0] = 0.0302 ;
+ //fThhadrong[0] = 1. ;
+ fThhadrong[1] = 1.73E-8 ;
+ fThhadrong[2] = 9.52E-10 ;
+ fTFhhadrong = new TFormula("ToF response to heavy hadrons" , "gaus") ;
+ fTFhhadrong->SetParameters( fThhadrong[0], fThhadrong[1], fThhadrong[2]) ;
+ //Landau (max probability to inf)
+ fThhadronl[0] = 0.139 ;
+ //fThhadronl[0] = 5.53 ;
+ fThhadronl[1] = 1.745E-8 ;
+ fThhadronl[2] = 1.00E-9 ;
+ fTFhhadronl = new TFormula("ToF response to heavy hadrons" , "landau") ;
+ fTFhhadronl->SetParameters( fThhadronl[0], fThhadronl[1], fThhadronl[2]) ;
+
+/// /gaussian parametrization for pions
+// fTpion[0] = 3.93E-2 ; fTpion[1] = 0.130 ; fTpion[2] =-6.37E-2 ;//constant
+// fTpion[3] = 1.65E-8 ; fTpion[4] =-1.40E-9 ; fTpion[5] = 5.96E-10;//mean
+// fTpion[6] = 8.09E-10; fTpion[7] =-4.65E-10; fTpion[8] = 1.50E-10;//sigma
+
+// //landau parametrization for kaons
+// fTkaon[0] = 0.107 ; fTkaon[1] = 0.166 ; fTkaon[2] = 0.243 ;//constant
+// fTkaon[3] = 1.80E-8 ; fTkaon[4] =-2.96E-9 ; fTkaon[5] = 9.60E-10;//mean
+// fTkaon[6] = 1.37E-9 ; fTkaon[7] =-1.80E-9 ; fTkaon[8] = 6.74E-10;//sigma
+
+// //landau parametrization for nucleons
+// fThhadron[0] = 6.33E-2 ; fThhadron[1] = 2.52E-2 ; fThhadron[2] = 2.16E-2 ;//constant
+// fThhadron[3] = 1.94E-8 ; fThhadron[4] =-7.06E-10; fThhadron[5] =-4.69E-10;//mean
+// fThhadron[6] = 2.55E-9 ; fThhadron[7] =-1.90E-9 ; fThhadron[8] = 5.41E-10;//sigma
+
+
+ // Shower shape: dispersion gaussian parameters
+ // Photons
+
+ fDphoton[0] = 0.1 ; fDphoton[1] = 0. ; fDphoton[2] = 0. ;//constant
+ //fDphoton[0] = 1.0 ; fDphoton[1] = 0. ; fDphoton[2] = 0. ;//constant
+ fDphoton[3] = 1.55 ; fDphoton[4] =-0.0863 ; fDphoton[5] = 0.287 ;//mean
+ fDphoton[6] = 0.0451 ; fDphoton[7] =-0.0803 ; fDphoton[8] = 0.314 ;//sigma
+
+ fDpi0[0] = 0.0586 ; fDpi0[1] = 1.06E-3 ; fDpi0[2] = 0. ;//constant
+ //fDpi0[0] = 1.0 ; fDpi0[1] = 0.0 ; fDpi0[2] = 0. ;//constant
+ fDpi0[3] = 2.67 ; fDpi0[4] =-2.00E-2 ; fDpi0[5] = 9.37E-5 ;//mean
+ fDpi0[6] = 0.153 ; fDpi0[7] = 9.34E-4 ; fDpi0[8] =-1.49E-5 ;//sigma
+ //landau
+// fDhadron[0] = 0.007 ; fDhadron[1] = 0. ; fDhadron[2] = 0. ;//constant
+// //fDhadron[0] = 5.53 ; fDhadron[1] = 0. ; fDhadron[2] = 0. ;//constant
+// fDhadron[3] = 3.38 ; fDhadron[4] = 0.0833 ; fDhadron[5] =-0.845 ;//mean
+// fDhadron[6] = 0.627 ; fDhadron[7] = 0.012 ; fDhadron[8] =-0.170 ;//sigma
+
+ fDhadron[0] =-5.10E-3 ; fDhadron[1] =-5.35E-3 ; fDhadron[2] = 3.77E-2 ;//constant
+ fDhadron[3] = 4.03 ; fDhadron[4] = 0.292 ; fDhadron[5] =-1.50 ;//mean
+ fDhadron[6] = 0.958 ; fDhadron[7] = 0.117 ; fDhadron[8] =-0.598 ;//sigma
+ // Muons
+ fDmuon[0] = 0.0631 ;
+ fDmuon[1] = 1.4 ;
+ fDmuon[2] = 0.0557 ;
+ fDFmuon = new TFormula("Shower shape response to muons" , "landau") ;
+ fDFmuon->SetParameters( fDmuon[0], fDmuon[1], fDmuon[2]) ;
+
+ // CPV-EMC distance gaussian parameters
+
+ fCPVelectron[0] = 0.0 ; fCPVelectron[1] = 0.0160 ; fCPVelectron[2] = 0. ;//constant
+ //fCPVelectron[0] = 1.0 ; fCPVelectron[1] = 0. ; fCPVelectron[2] = 0. ;//constant
+ fCPVelectron[3] = 0.0682 ; fCPVelectron[4] =-1.32 ; fCPVelectron[5] = 6.67 ;//mean
+ fCPVelectron[6] = 0.276 ; fCPVelectron[7] = 0.234 ; fCPVelectron[8] = 0.356 ;//sigma
+
+ //all charged landau
+ // fCPVcharged[0] = 0.0 ; fCPVcharged[1] = 0.0464 ; fCPVcharged[2] = 0. ;//constant
+// //fCPVcharged[0] = 5.53 ; fCPVcharged[1] = 0. ; fCPVcharged[2] = 0. ;//constant
+// fCPVcharged[3] = 0.297 ; fCPVcharged[4] =-0.652 ; fCPVcharged[5] = 1.91 ;//mean
+// fCPVcharged[6] = 0.0786 ; fCPVcharged[7] =-0.237 ; fCPVcharged[8] = 0.752 ;//sigma
+
+// //charged hadrons landau
+// fCPVchargedl[0] = 0.103 ; fCPVchargedl[1] = 8.84E-3 ; fCPVchargedl[2] =-2.40E-2 ;//constant
+// fCPVchargedl[3] = 2.86 ; fCPVchargedl[4] =-0.214 ; fCPVchargedl[5] = 0.817 ;//mean
+// fCPVchargedl[6] = 0.182 ; fCPVchargedl[7] =-0.0693 ; fCPVchargedl[8] = 0.319 ;//sigma
+// //charged hadrons gaus
+// fCPVchargedg[0] = 0.0135 ; fCPVchargedg[1] = 2.43E-5 ; fCPVchargedg[2] = 3.01E-3 ;//constant
+// fCPVchargedg[3] = 2.37 ; fCPVchargedg[4] =-0.181 ; fCPVchargedg[5] = 0.726 ;//mean
+// fCPVchargedg[6] = 0.908 ; fCPVchargedg[7] =-0.0558 ; fCPVchargedg[8] = 0.219 ;//sigma
+
+
+ //charged hadrons landau
+ fCPVcharged[0] = 6.06E-2 ; fCPVcharged[1] = 3.80E-3 ; fCPVcharged[2] =-1.40E-2 ;//constant
+ fCPVcharged[3] = 1.15 ; fCPVcharged[4] =-0.563 ; fCPVcharged[5] = 2.63 ;//mean
+ fCPVcharged[6] = 0.915 ; fCPVcharged[7] =-0.0790 ; fCPVcharged[8] = 0.307 ;//sigma
+
+ for (Int_t i =0; i< AliESDtrack::kSPECIESN ; i++)
+ fInitPID[i] = 1.;
+
}
//________________________________________________________________________
// for the event range from fFirstEvent to fLastEvent.
// This range is optionally set by SetEventRange().
// if fLastEvent=-1 (by default), then process events until the end.
-
+
if(strstr(option,"tim"))
gBenchmark->Start("PHOSPID");
if(gime->TrackSegments() && //Skip events, where no track segments made
gime->TrackSegments()->GetEntriesFast()) {
MakeRecParticles() ;
+
+ if(fBayesian)
+ MakePID() ;
+
WriteRecParticles();
if(strstr(option,"deb"))
PrintRecParticles(option) ;
fRecParticlesInRun += gime->RecParticles()->GetEntriesFast() ;
}
}
+ if(strstr(option,"deb"))
+ PrintRecParticles(option);
if(strstr(option,"tim")){
gBenchmark->Stop("PHOSPID");
Info("Exec", "took %f seconds for PID %f seconds per event",
gBenchmark->GetCpuTime("PHOSPID"),
gBenchmark->GetCpuTime("PHOSPID")/nEvents) ;
}
-
- Unload();
+ if(fWrite)
+ Unload();
+}
+
+//________________________________________________________________________
+Double_t AliPHOSPIDv1::GausF(Double_t x, Double_t y, Double_t * par)
+{
+ Double_t cnt = par[2] * (x*x) + par[1] * x + par[0] ;
+ Double_t mean = par[4] / (x*x) + par[5] / x + par[3] ;
+ Double_t sigma = par[7] / (x*x) + par[8] / x + par[6] ;
+ //cout<<"c "<< cnt << " mean "<<mean<<" sigma "<<sigma<<endl;
+ // Double_t arg = - (y-mean) * (y-mean) / (2*sigma*sigma) ;
+ // return cnt * TMath::Exp(arg) ;
+ if(mean != 0. && sigma/mean > 1.e-4 ){
+ TF1 * f = new TF1("gaus","gaus",0,100);
+ f->SetParameters(cnt,mean,sigma);
+ //cout<<"gaus value "<<f->Eval(y)<<endl ;
+ Double_t arg = f->Eval(y) ;
+ return arg;
+ }
+ else
+ return 0.;
+
+}
+//________________________________________________________________________
+Double_t AliPHOSPIDv1::GausPol2(Double_t x, Double_t y, Double_t * par)
+{
+ Double_t cnt = par[0] + par[1] * x + par[2] * x * x ;
+ Double_t mean = par[3] + par[4] * x + par[5] * x * x ;
+ Double_t sigma = par[6] + par[7] * x + par[8] * x * x ;
+
+ if(mean != 0. && sigma/mean > 1.e-4 ){
+ TF1 * f = new TF1("gaus","gaus",0,100);
+ f->SetParameters(cnt,mean,sigma);
+ Double_t arg = f->Eval(y) ;
+ return arg;
+ }
+ else
+ return 0.;
}
//____________________________________________________________________________
}
//____________________________________________________________________________
-const Float_t AliPHOSPIDv1::GetParameterCalibration(Int_t i) const
+Float_t AliPHOSPIDv1::GetParameterCalibration(Int_t i) const
{
// Get the i-th parameter "Calibration"
Float_t param = 0.;
}
//____________________________________________________________________________
-const Float_t AliPHOSPIDv1::GetCalibratedEnergy(const Float_t e) const
+Float_t AliPHOSPIDv1::GetCalibratedEnergy(Float_t e) const
{
// It calibrates Energy depending on the recpoint energy.
// The energy of the reconstructed cluster is corrected with
}
//____________________________________________________________________________
-const Float_t AliPHOSPIDv1::GetParameterCpv2Emc(Int_t i, TString axis) const
+Float_t AliPHOSPIDv1::GetParameterCpv2Emc(Int_t i, TString axis) const
{
// Get the i-th parameter "CPV-EMC distance" for the specified axis
Float_t param = 0.;
}
//____________________________________________________________________________
-const Float_t AliPHOSPIDv1::GetCpv2EmcDistanceCut(TString axis, Float_t e) const
+Float_t AliPHOSPIDv1::GetCpv2EmcDistanceCut(TString axis, Float_t e) const
{
// Get CpvtoEmcDistance Cut depending on the cluster energy, axis and
// Purity-Efficiency point
}
//____________________________________________________________________________
-const Float_t AliPHOSPIDv1::GetEllipseParameter(TString particle, TString param, Float_t e) const
+Float_t AliPHOSPIDv1::GetEllipseParameter(TString particle, TString param, Float_t e) const
{
// Calculates the parameter param of the ellipse
else if (param.Contains("x0")) e = TMath::Max((Double_t)e,1.1);
}
- value = p[0]/TMath::Sqrt(e) + p[1]*e + p[2]*e*e + p[3];
+ if (particle == "photon")
+ value = p[0]/TMath::Sqrt(e) + p[1]*e + p[2]*e*e + p[3];
+ else if (particle == "pi0")
+ value = p[0] + p[1]*e + p[2]*e*e;
+
return value;
}
//_____________________________________________________________________________
-const Float_t AliPHOSPIDv1::GetParameterPhotonBoundary (Int_t i) const
+Float_t AliPHOSPIDv1::GetParameterPhotonBoundary (Int_t i) const
{
// Get the parameter "i" to calculate the boundary on the moment M2x
// for photons at high p_T
}
//____________________________________________________________________________
-const Float_t AliPHOSPIDv1::GetParameterPi0Boundary (Int_t i) const
+Float_t AliPHOSPIDv1::GetParameterPi0Boundary (Int_t i) const
{
// Get the parameter "i" to calculate the boundary on the moment M2x
// for pi0 at high p_T
}
//____________________________________________________________________________
-const Float_t AliPHOSPIDv1::GetParameterTimeGate(Int_t i) const
+Float_t AliPHOSPIDv1::GetParameterTimeGate(Int_t i) const
{
// Get TimeGate parameter depending on Purity-Efficiency i:
// i=0 - Low purity, i=1 - Medium purity, i=2 - High purity
}
//_____________________________________________________________________________
-const Float_t AliPHOSPIDv1::GetParameterToCalculateEllipse(TString particle, TString param, Int_t i) const
+Float_t AliPHOSPIDv1::GetParameterToCalculateEllipse(TString particle, TString param, Int_t i) const
{
// Get the parameter "i" that is needed to calculate the ellipse
// parameter "param" for the particle "particle" ("photon" or "pi0")
//____________________________________________________________________________
-const Float_t AliPHOSPIDv1::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv, Option_t * axis)const
+Float_t AliPHOSPIDv1::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSCpvRecPoint * cpv, Option_t * axis)const
{
// Calculates the distance between the EMC RecPoint and the PPSD RecPoint
if(cpv){
emc->GetLocalPosition(vecEmc) ;
cpv->GetLocalPosition(vecCpv) ;
+
if(emc->GetPHOSMod() == cpv->GetPHOSMod()){
// Correct to difference in CPV and EMC position due to different distance to center.
// we assume, that particle moves from center
return 100000000 ;
}
//____________________________________________________________________________
-const Int_t AliPHOSPIDv1::GetCPVBit(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv,const Int_t effPur, Float_t e) const
+Int_t AliPHOSPIDv1::GetCPVBit(AliPHOSEmcRecPoint * emc,AliPHOSCpvRecPoint * cpv, Int_t effPur, Float_t e) const
{
if(effPur>2 || effPur<0)
Error("GetCPVBit","Invalid Efficiency-Purity choice %d",effPur);
Float_t deltaX = TMath::Abs(GetDistance(emc, cpv, "X"));
Float_t deltaZ = TMath::Abs(GetDistance(emc, cpv, "Z"));
-
- if((deltaX>sigX*(effPur+1))|(deltaZ>sigZ*(effPur+1)))
+ //Info("GetCPVBit"," xdist %f, sigx %f, zdist %f, sigz %f",deltaX, sigX, deltaZ,sigZ ) ;
+ if((deltaX>sigX*(effPur+1))&&(deltaZ>sigZ*(effPur+1)))
return 1;//Neutral
else
return 0;//Charged
}
//____________________________________________________________________________
-const Int_t AliPHOSPIDv1::GetPrincipalBit(TString particle, const Double_t* p,const Int_t effPur, Float_t e)const
+Int_t AliPHOSPIDv1::GetPrincipalBit(TString particle, const Double_t* p, Int_t effPur, Float_t e)const
{
//Is the particle inside de PCA ellipse?
}
//____________________________________________________________________________
-const Int_t AliPHOSPIDv1::GetHardPhotonBit(AliPHOSEmcRecPoint * emc) const
+Int_t AliPHOSPIDv1::GetHardPhotonBit(AliPHOSEmcRecPoint * emc) const
{
// Set bit for identified hard photons (E > 30 GeV)
// if the second moment M2x is below the boundary
TMath::Exp(-TMath::Power(e-GetParameterPhotonBoundary(1),2)/2.0/
TMath::Power(GetParameterPhotonBoundary(2),2)) +
GetParameterPhotonBoundary(3);
- Info("GetHardPhotonBit","E=%f, m2x=%f, boundary=%f",e,m2x,m2xBoundary);
+ //Info("GetHardPhotonBit","E=%f, m2x=%f, boundary=%f",e,m2x,m2xBoundary);
if (m2x < m2xBoundary)
return 1;// A hard photon
else
}
//____________________________________________________________________________
-const Int_t AliPHOSPIDv1::GetHardPi0Bit(AliPHOSEmcRecPoint * emc) const
+Int_t AliPHOSPIDv1::GetHardPi0Bit(AliPHOSEmcRecPoint * emc) const
{
// Set bit for identified hard pi0 (E > 30 GeV)
// if the second moment M2x is above the boundary
Float_t m2x = emc->GetM2x();
Float_t m2xBoundary = GetParameterPi0Boundary(0) +
e * GetParameterPi0Boundary(1);
- Info("GetHardPi0Bit","E=%f, m2x=%f, boundary=%f",e,m2x,m2xBoundary);
+ //Info("GetHardPi0Bit","E=%f, m2x=%f, boundary=%f",e,m2x,m2xBoundary);
if (m2x > m2xBoundary)
return 1;// A hard pi0
else
}
//____________________________________________________________________________
-TVector3 AliPHOSPIDv1::GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSRecPoint * )const
+TVector3 AliPHOSPIDv1::GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSCpvRecPoint * )const
{
// Calculates the momentum direction:
// 1. if only a EMC RecPoint, direction is given by IP and this RecPoint
dir = emcglobalpos ;
- dir.SetZ( -dir.Z() ) ; // why ?
dir.SetMag(1.) ;
//account correction to the position of IP
Float_t xo,yo,zo ; //Coordinates of the origin
- gAlice->Generator()->GetOrigin(xo,yo,zo) ;
+ if(gAlice && gAlice->GetMCApp() && gAlice->Generator())
+ gAlice->Generator()->GetOrigin(xo,yo,zo) ;
+ else{
+ xo=yo=zo=0.;
+ }
TVector3 origin(xo,yo,zo);
dir = dir - origin ;
return dir ;
}
+//________________________________________________________________________
+Double_t AliPHOSPIDv1::LandauF(Double_t x, Double_t y, Double_t * par)
+{
+ Double_t cnt = par[2] * (x*x) + par[1] * x + par[0] ;
+ Double_t mean = par[4] / (x*x) + par[5] / x + par[3] ;
+ Double_t sigma = par[7] / (x*x) + par[8] / x + par[6] ;
+ // Double_t mean = par[3] + par[4] * x + par[5] * x * x ;
+// Double_t sigma = par[6] + par[7] * x + par[8] * x * x ;
+
+ //Double_t arg = -(y-mean)*(y-mean)/(2*sigma*sigma) ;
+ //return cnt * TMath::Exp(arg) ;
+ if(mean != 0. && sigma/mean > 1.e-4 ){
+ TF1 * f = new TF1("landau","landau",0.,100.);
+ f->SetParameters(cnt,mean,sigma);
+ Double_t arg = f->Eval(y) ;
+ return arg;
+ }
+ else
+ return 0.;
+
+}
+//________________________________________________________________________
+Double_t AliPHOSPIDv1::LandauPol2(Double_t x, Double_t y, Double_t * par)
+{
+ Double_t cnt = par[2] * (x*x) + par[1] * x + par[0] ;
+ Double_t mean = par[4] * (x*x) + par[5] * x + par[3] ;
+ Double_t sigma = par[7] * (x*x) + par[8] * x + par[6] ;
+
+ if(mean != 0. && sigma/mean > 1.e-4 ){
+ TF1 * f = new TF1("landau","landau",0.,100.);
+ f->SetParameters(cnt,mean,sigma);
+ Double_t arg = f->Eval(y) ;
+ return arg;
+ }
+ else
+ return 0.;
+}
+// //________________________________________________________________________
+// Double_t AliPHOSPIDv1::ChargedHadronDistProb(Double_t x, Double_t y, Double_t * parg, Double_t * parl)
+// {
+// Double_t cnt = 0.0 ;
+// Double_t mean = 0.0 ;
+// Double_t sigma = 0.0 ;
+// Double_t arg = 0.0 ;
+// if (y < parl[4] / (x*x) + parl[5] / x + parl[3]){
+// cnt = parg[1] / (x*x) + parg[2] / x + parg[0] ;
+// mean = parg[4] / (x*x) + parg[5] / x + parg[3] ;
+// sigma = parg[7] / (x*x) + parg[8] / x + parg[6] ;
+// TF1 * f = new TF1("gaus","gaus",0.,100.);
+// f->SetParameters(cnt,mean,sigma);
+// arg = f->Eval(y) ;
+// }
+// else{
+// cnt = parl[1] / (x*x) + parl[2] / x + parl[0] ;
+// mean = parl[4] / (x*x) + parl[5] / x + parl[3] ;
+// sigma = parl[7] / (x*x) + parl[8] / x + parl[6] ;
+// TF1 * f = new TF1("landau","landau",0.,100.);
+// f->SetParameters(cnt,mean,sigma);
+// arg = f->Eval(y) ;
+// }
+// // Double_t mean = par[3] + par[4] * x + par[5] * x * x ;
+// // Double_t sigma = par[6] + par[7] * x + par[8] * x * x ;
+
+// //Double_t arg = -(y-mean)*(y-mean)/(2*sigma*sigma) ;
+// //return cnt * TMath::Exp(arg) ;
+
+// return arg;
+
+// }
+//____________________________________________________________________________
+void AliPHOSPIDv1::MakePID()
+{
+ // construct the PID weight from a Bayesian Method
+
+ Int_t index ;
+ const Int_t kSPECIES = AliESDtrack::kSPECIESN ;
+ Int_t nparticles = AliPHOSGetter::Instance()->RecParticles()->GetEntriesFast() ;
+
+// const Int_t kMAXPARTICLES = 2000 ;
+// if (nparticles >= kMAXPARTICLES)
+// Error("MakePID", "Change size of MAXPARTICLES") ;
+// Double_t stof[kSPECIES][kMAXPARTICLES] ;
+
+
+ Double_t * stof[kSPECIES] ;
+ Double_t * sdp [kSPECIES] ;
+ Double_t * scpv[kSPECIES] ;
+
+ //Info("MakePID","Begin MakePID");
+
+ for (Int_t i =0; i< kSPECIES; i++){
+ stof[i] = new Double_t[nparticles] ;
+ sdp [i] = new Double_t[nparticles] ;
+ scpv[i] = new Double_t[nparticles] ;
+ }
+
+ // make the normalized distribution of pid for this event
+ // w(pid) in the Bayesian formulation
+ for(index = 0 ; index < nparticles ; index ++) {
+
+ AliPHOSRecParticle * recpar = AliPHOSGetter::Instance()->RecParticle(index) ;
+ AliPHOSEmcRecPoint * emc = AliPHOSGetter::Instance()->EmcRecPoint(index) ;
+ AliPHOSCpvRecPoint * cpv = AliPHOSGetter::Instance()->CpvRecPoint(index) ;
+
+ Float_t en = emc->GetEnergy();
+
+ // Tof
+ Double_t time = recpar->ToF() ;
+ //cout<<">>>>>>>Energy "<<en<<"Time "<<time<<endl;
+ //Electrons initial population to be removed
+ fInitPID[AliESDtrack::kEleCon] = 0. ;
+
+ // now get the signals probability
+ // s(pid) in the Bayesian formulation
+ // stof[AliESDtrack::kPhoton][index] = fTFphoton ->Eval(time) ;
+ // stof[AliESDtrack::kElectron][index] = stof[AliESDtrack::kPhoton][index] ;
+ // if(time < fTpionl[1])
+ // stof[AliESDtrack::kPion][index] = fTFpiong ->Eval(time) ; //gaus distribution
+ // else
+ // stof[AliESDtrack::kPion][index] = fTFpionl ->Eval(time) ; //landau distribution
+ // if(time < fTkaonl[1])
+ // stof[AliESDtrack::kKaon][index] = fTFkaong ->Eval(time) ; //gaus distribution
+ // else
+ // stof[AliESDtrack::kKaon][index] = fTFkaonl ->Eval(time) ; //landau distribution
+ // if(time < fThhadronl[1])
+ // stof[AliESDtrack::kProton][index] = fTFhhadrong ->Eval(time) ; //gaus distribution
+ // else
+ // stof[AliESDtrack::kProton][index] = fTFhhadronl ->Eval(time) ; //landau distribution
+
+ // stof[AliESDtrack::kNeutron][index] = stof[AliESDtrack::kProton][index] ;
+ // stof[AliESDtrack::kEleCon][index] = stof[AliESDtrack::kPhoton][index] ;
+ // // a conversion electron has the photon ToF
+ // stof[AliESDtrack::kKaon0][index] = stof[AliESDtrack::kKaon][index] ;
+ // stof[AliESDtrack::kMuon][index] = stof[AliESDtrack::kPhoton][index] ;
+ if(en < 2.) {
+ // cout<<"TOF: pi "<< GausPol2(en, time, fTpion)<<endl;
+ // cout<<"TOF: k "<< LandauPol2(en, time, fTkaon)<<endl;
+ // cout<<"TOF: N "<< LandauPol2(en, time, fThhadron)<<endl;
+ stof[AliESDtrack::kPhoton][index] = fTFphoton ->Eval(time) ;
+ stof[AliESDtrack::kElectron][index] = stof[AliESDtrack::kPhoton][index] ;
+// stof[AliESDtrack::kPion][index] = GausPol2(en, time, fTpion) ; //gaus distribution
+// stof[AliESDtrack::kKaon][index] = LandauPol2(en, time, fTkaon) ; //gaus distribution
+// stof[AliESDtrack::kProton][index] = LandauPol2(en, time, fThhadron); //gaus distribution
+ stof[AliESDtrack::kPion][index] = fTFpiong ->Eval(time) ; //landau distribution
+ if(time < fTkaonl[1])
+ stof[AliESDtrack::kKaon][index] = fTFkaong ->Eval(time) ; //gaus distribution
+ else
+ stof[AliESDtrack::kKaon][index] = fTFkaonl ->Eval(time) ; //landau distribution
+ if(time < fThhadronl[1])
+ stof[AliESDtrack::kProton][index] = fTFhhadrong ->Eval(time) ; //gaus distribution
+ else
+ stof[AliESDtrack::kProton][index] = fTFhhadronl ->Eval(time) ; //landau distribution
+
+ stof[AliESDtrack::kNeutron][index] = stof[AliESDtrack::kProton][index] ;
+ stof[AliESDtrack::kEleCon][index] = stof[AliESDtrack::kPhoton][index] ;
+ // a conversion electron has the photon ToF
+ stof[AliESDtrack::kKaon0][index] = stof[AliESDtrack::kKaon][index] ;
+ stof[AliESDtrack::kMuon][index] = stof[AliESDtrack::kPhoton][index] ;
+ }
+ else {
+ stof[AliESDtrack::kPhoton][index] = 1.;
+ stof[AliESDtrack::kElectron][index] = 1.;
+ stof[AliESDtrack::kPion][index] = 1.;
+ stof[AliESDtrack::kKaon][index] = 1.;
+ stof[AliESDtrack::kProton][index] = 1.;
+ stof[AliESDtrack::kNeutron][index] = 1.;
+ stof[AliESDtrack::kEleCon][index] = 1.;
+ stof[AliESDtrack::kKaon0][index] = 1.;
+ stof[AliESDtrack::kMuon][index] = 1.;
+ }
+ // Info("MakePID", "TOF passed");
+
+ // Shower shape: Dispersion
+ Float_t dispersion = emc->GetDispersion();
+ //dispersion is not well defined if the cluster is only in few crystals
+
+ // Info("MakePID","multiplicity %d, dispersion %f", emc->GetMultiplicity(),
+ // dispersion);
+ // Info("MakePID","ss: photon %f, hadron %f ", GausF (en , dispersion, fDphoton),
+ // LandauF(en , dispersion, fDhadron ) );
+ if(emc->GetMultiplicity() > 4){
+ sdp[AliESDtrack::kPhoton][index] = GausF (en , dispersion, fDphoton) ;
+ sdp[AliESDtrack::kElectron][index] = sdp[AliESDtrack::kPhoton][index] ;
+ sdp[AliESDtrack::kPion][index] = LandauF(en , dispersion, fDhadron ) ;
+ sdp[AliESDtrack::kKaon][index] = sdp[AliESDtrack::kPion][index] ;
+ sdp[AliESDtrack::kProton][index] = sdp[AliESDtrack::kPion][index] ;
+ sdp[AliESDtrack::kNeutron][index] = sdp[AliESDtrack::kPion][index] ;
+ sdp[AliESDtrack::kEleCon][index] = sdp[AliESDtrack::kPhoton][index];
+ sdp[AliESDtrack::kKaon0][index] = sdp[AliESDtrack::kPion][index] ;
+ sdp[AliESDtrack::kMuon][index] = fDFmuon ->Eval(dispersion) ; //landau distribution
+ }
+ else{
+ sdp[AliESDtrack::kPhoton][index] = 1. ;
+ sdp[AliESDtrack::kElectron][index] = 1. ;
+ sdp[AliESDtrack::kPion][index] = 1. ;
+ sdp[AliESDtrack::kKaon][index] = 1. ;
+ sdp[AliESDtrack::kProton][index] = 1. ;
+ sdp[AliESDtrack::kNeutron][index] = 1. ;
+ sdp[AliESDtrack::kEleCon][index] = 1. ;
+ sdp[AliESDtrack::kKaon0][index] = 1. ;
+ sdp[AliESDtrack::kMuon][index] = 1. ;
+ }
+
+
+ // CPV-EMC Distance
+ Float_t distance = GetDistance(emc, cpv, "R") ;
+ // Info("MakePID", "Distance %f", distance);
+ Float_t pcpv = 0 ;
+ Float_t pcpvneutral = 0. ;
+ Float_t pcpvelectron = GausF (en , distance, fCPVelectron) ;
+ Float_t pcpvcharged = LandauF(en , distance, fCPVcharged) ;
+ //Float_t pcpvcharged = ChargedHadronDistProb(en , distance, fCPVchargedg, fCPVchargedl) ;
+ // Info("MakePID", "CPV: electron %f, hadron %f", pcpvelectron, pcpvcharged);
+ if(pcpvelectron >= pcpvcharged)
+ pcpv = pcpvelectron ;
+ else
+ pcpv = pcpvcharged ;
+
+ if(pcpv < 1e-4)
+ {
+ pcpvneutral = 1. ;
+ pcpvcharged = 0. ;
+ pcpvelectron = 0. ;
+ }
+
+ scpv[AliESDtrack::kPion][index] = pcpvcharged ;
+ scpv[AliESDtrack::kKaon][index] = pcpvcharged ;
+ scpv[AliESDtrack::kProton][index] = pcpvcharged ;
+ scpv[AliESDtrack::kPhoton][index] = pcpvneutral ;
+ scpv[AliESDtrack::kElectron][index] = pcpvelectron ;
+ scpv[AliESDtrack::kNeutron][index] = pcpvneutral ;
+ scpv[AliESDtrack::kEleCon][index] = pcpvelectron ;
+ scpv[AliESDtrack::kKaon0][index] = pcpvneutral ;
+ scpv[AliESDtrack::kMuon][index] = pcpvelectron ;
+
+ // Info("MakePID", "CPV passed");
+
+ if(en > 30.){
+ // pi0 are detected via decay photon
+ stof[AliESDtrack::kPi0][index] = fTFphoton ->Eval(time) ;
+ scpv[AliESDtrack::kPi0][index] = pcpvneutral ;
+ if(emc->GetMultiplicity() > 4)
+ sdp [AliESDtrack::kPi0][index] = GausPol2(en , dispersion, fDpi0) ;
+ else
+ sdp [AliESDtrack::kPi0][index] = 1. ;
+ }
+ else{
+ stof[AliESDtrack::kPi0][index] = 0. ;
+ scpv[AliESDtrack::kPi0][index] = 0. ;
+ sdp [AliESDtrack::kPi0][index] = 0. ;
+ fInitPID[AliESDtrack::kPi0] = 0. ;
+ }
+
+ if(en > 0.5){
+ //Muons deposit few energy
+ scpv[AliESDtrack::kMuon][index] = 0;
+ stof[AliESDtrack::kMuon][index] = 0;
+ sdp [AliESDtrack::kMuon][index] = 0;
+ }
+// cout<<"MakePID: energy "<<en<<", tof "<<time<<", distance "<<distance<<", dispersion "<<dispersion<<endl ;
+// cout<<"Photon , pid "<< fInitPID[AliESDtrack::kPhoton]<<" tof "<<stof[AliESDtrack::kPhoton][index]
+// <<", cpv "<<scpv[AliESDtrack::kPhoton][index]<<", ss "<<sdp[AliESDtrack::kPhoton][index]<<endl;
+// cout<<"EleCon , pid "<< fInitPID[AliESDtrack::kEleCon]<<", tof "<<stof[AliESDtrack::kEleCon][index]
+// <<", cpv "<<scpv[AliESDtrack::kEleCon][index]<<" ss "<<sdp[AliESDtrack::kEleCon][index]<<endl;
+// cout<<"Electron , pid "<< fInitPID[AliESDtrack::kElectron]<<", tof "<<stof[AliESDtrack::kElectron][index]
+// <<", cpv "<<scpv[AliESDtrack::kElectron][index]<<" ss "<<sdp[AliESDtrack::kElectron][index]<<endl;
+// cout<<"Muon , pid "<< fInitPID[AliESDtrack::kMuon]<<", tof "<<stof[AliESDtrack::kMuon][index]
+// <<", cpv "<<scpv[AliESDtrack::kMuon][index]<<" ss "<<sdp[AliESDtrack::kMuon][index]<<endl;
+// cout<<"Pi0 , pid "<< fInitPID[AliESDtrack::kPi0]<<", tof "<<stof[AliESDtrack::kPi0][index]
+// <<", cpv "<<scpv[AliESDtrack::kPi0][index]<<" ss "<<sdp[AliESDtrack::kPi0][index]<<endl;
+// cout<<"Pion , pid "<< fInitPID[AliESDtrack::kPion]<<", tof "<<stof[AliESDtrack::kPion][index]
+// <<", cpv "<<scpv[AliESDtrack::kPion][index]<<" ss "<<sdp[AliESDtrack::kPion][index]<<endl;
+// cout<<"Kaon0 , pid "<< fInitPID[AliESDtrack::kKaon0]<<", tof "<<stof[AliESDtrack::kKaon0][index]
+// <<", cpv "<<scpv[AliESDtrack::kKaon0][index]<<" ss "<<sdp[AliESDtrack::kKaon0][index]<<endl;
+// cout<<"Kaon , pid "<< fInitPID[AliESDtrack::kKaon]<<", tof "<<stof[AliESDtrack::kKaon][index]
+// <<", cpv "<<scpv[AliESDtrack::kKaon][index]<<" ss "<<sdp[AliESDtrack::kKaon][index]<<endl;
+// cout<<"Neutron , pid "<< fInitPID[AliESDtrack::kNeutron]<<", tof "<<stof[AliESDtrack::kNeutron][index]
+// <<", cpv "<<scpv[AliESDtrack::kNeutron][index]<<" ss "<<sdp[AliESDtrack::kNeutron][index]<<endl;
+// cout<<"Proton , pid "<< fInitPID[AliESDtrack::kProton]<<", tof "<<stof[AliESDtrack::kProton][index]
+// <<", cpv "<<scpv[AliESDtrack::kProton][index]<<" ss "<<sdp[AliESDtrack::kProton][index]<<endl;
+ }
+
+ //for (index = 0 ; index < kSPECIES ; index++)
+ // pid[index] /= nparticles ;
+
+ // Info("MakePID", "Total Probability calculation");
+
+ for(index = 0 ; index < nparticles ; index ++) {
+ // calculates the Bayesian weight
+ Int_t jndex ;
+ Double_t wn = 0.0 ;
+ for (jndex = 0 ; jndex < kSPECIES ; jndex++)
+ //wn += stof[jndex][index] * pid[jndex] ;
+ wn += stof[jndex][index] * sdp[jndex][index] * scpv[jndex][index] * fInitPID[jndex] ;
+ //cout<<"*************wn "<<wn<<endl;
+ AliPHOSRecParticle * recpar = AliPHOSGetter::Instance()->RecParticle(index) ;
+ if (TMath::Abs(wn)>0)
+ for (jndex = 0 ; jndex < kSPECIES ; jndex++) {
+ //cout<<"jndex "<<jndex<<" wn "<<wn<<" SetPID * wn"
+ //<<stof[jndex][index] * sdp[jndex][index] * pid[jndex] << endl;
+ //cout<<" tof "<<stof[jndex][index] << " disp " <<sdp[jndex][index] << " pid "<< fInitPID[jndex] << endl;
+// cout<<"Particle "<<jndex<<" final prob * wn "
+// <<stof[jndex][index] * sdp[jndex][index] * scpv[jndex][index] * fInitPID[jndex] <<" wn "<< wn<<endl;
+ recpar->SetPID(jndex, stof[jndex][index] * sdp[jndex][index] *
+ scpv[jndex][index] * fInitPID[jndex] / wn) ;
+// cout<<"final prob "<<stof[jndex][index] * sdp[jndex][index] * scpv[jndex][index] * fInitPID[jndex] / wn<<endl;
+ //recpar->SetPID(jndex, stof[jndex][index] * fInitPID[jndex] / wn) ;
+ //cout<<"After SetPID"<<endl;
+ //recpar->Print();
+ }
+ }
+ // Info("MakePID", "Delete");
+
+ // for (Int_t i =0; i< kSPECIES; i++){
+ // delete [] stof[i];
+ // cout<<i<<endl;
+ // delete [] sdp[i];
+ // cout<<i<<endl;
+ // delete [] scpv[i];
+ // cout<<i<<endl;
+ // }
+
+ // Info("MakePID","End MakePID");
+}
+
//____________________________________________________________________________
void AliPHOSPIDv1::MakeRecParticles()
{
if(ts->GetEmcIndex()>=0)
emc = (AliPHOSEmcRecPoint *) emcRecPoints->At(ts->GetEmcIndex()) ;
- AliPHOSRecPoint * cpv = 0 ;
+ AliPHOSCpvRecPoint * cpv = 0 ;
if(ts->GetCpvIndex()>=0)
- cpv = (AliPHOSRecPoint *) cpvRecPoints->At(ts->GetCpvIndex()) ;
+ cpv = (AliPHOSCpvRecPoint *) cpvRecPoints->At(ts->GetCpvIndex()) ;
+ Int_t track = 0 ;
+ track = ts->GetTrackIndex() ;
+
// Now set type (reconstructed) of the particle
// Choose the cluster energy range
fPPi0[1] =-100.0;
}
- Float_t time =emc->GetTime() ;
+ Float_t time = emc->GetTime() ;
+ rp->SetTof(time) ;
// Loop of Efficiency-Purity (the 3 points of purity or efficiency
// are taken into account to set the particle identification)
// Looking at the CPV detector. If RCPV greater than CpvEmcDistance,
// 1st,2nd or 3rd bit (depending on the efficiency-purity point )
// is set to 1
- if(GetCPVBit(emc, cpv, effPur,e) == 1 )
+ if(GetCPVBit(emc, cpv, effPur,e) == 1 ){
rp->SetPIDBit(effPur) ;
-
+ //cout<<"CPV bit "<<effPur<<endl;
+ }
// Looking the TOF. If TOF smaller than gate, 4th, 5th or 6th
// bit (depending on the efficiency-purity point )is set to 1
- if(time< (*fParameters)(2,effPur))
+ if(time< (*fParameters)(3,effPur))
rp->SetPIDBit(effPur+3) ;
-
+
//Photon PCA
//If we are inside the ellipse, 7th, 8th or 9th
// bit (depending on the efficiency-purity point )is set to 1
if(GetHardPi0Bit (emc))
rp->SetPIDBit(13) ;
+ if(track >= 0)
+ rp->SetPIDBit(14) ;
+
//Set momentum, energy and other parameters
Float_t encal = GetCalibratedEnergy(e);
TVector3 dir = GetMomentumDirection(emc,cpv) ;
rp->SetFirstDaughter(-1);
rp->SetLastDaughter(-1);
rp->SetPolarisation(0,0,0);
+ //Set the position in global coordinate system from the RecPoint
+ AliPHOSGeometry * geom = gime->PHOSGeometry() ;
+ AliPHOSTrackSegment * ts = gime->TrackSegment(rp->GetPHOSTSIndex()) ;
+ AliPHOSEmcRecPoint * erp = gime->EmcRecPoint(ts->GetEmcIndex()) ;
+ TVector3 pos ;
+ geom->GetGlobal(erp, pos) ;
+ rp->SetPos(pos);
index++ ;
}
}
&(*fParameters)(i,0), &(*fParameters)(i,1),
&(*fParameters)(i,2), &(*fParameters)(i,3));
i++;
- //printf("line %d: %s",i,string);
+ //Info("SetParameters", "line %d: %s",i,string);
}
fclose(fd);
}
TClonesArray * recParticles = gime->RecParticles() ;
recParticles->Expand(recParticles->GetEntriesFast() ) ;
- TTree * treeP = gime->TreeP();
-
- //First rp
- Int_t bufferSize = 32000 ;
- TBranch * rpBranch = treeP->Branch("PHOSRP",&recParticles,bufferSize);
- rpBranch->SetTitle(BranchName());
-
- rpBranch->Fill() ;
-
- gime->WriteRecParticles("OVERWRITE");
- gime->WritePID("OVERWRITE");
+ if(fWrite){
+ TTree * treeP = gime->TreeP();
+
+ //First rp
+ Int_t bufferSize = 32000 ;
+ TBranch * rpBranch = treeP->Branch("PHOSRP",&recParticles,bufferSize);
+ rpBranch->SetTitle(BranchName());
+
+ rpBranch->Fill() ;
+
+ gime->WriteRecParticles("OVERWRITE");
+ gime->WritePID("OVERWRITE");
+ }
}
+
+//_______________________________________________________________________
+void AliPHOSPIDv1::SetInitPID(const Double_t *p) {
+ // Sets values for the initial population of each particle type
+ for (Int_t i=0; i<AliESDtrack::kSPECIESN; i++) fInitPID[i] = p[i];
+}
+//_______________________________________________________________________
+void AliPHOSPIDv1::GetInitPID(Double_t *p) const {
+ // Gets values for the initial population of each particle type
+ for (Int_t i=0; i<AliESDtrack::kSPECIESN; i++) p[i] = fInitPID[i];
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff