1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
17 // Implements the abstract base class AliHFEpidBase
18 // IsInitialized() does the PID decision
21 // Markus Fasel <M.Fasel@gsi.de>
22 // Matus Kalisky <matus.kalisky@cern.ch> (contact)
27 #include "AliAODTrack.h"
28 #include "AliESDtrack.h"
30 #include "AliPIDResponse.h"
32 #include "AliHFEdetPIDqa.h"
33 #include "AliHFEpidTOF.h"
34 #include "AliHFEpidQAmanager.h"
37 ClassImp(AliHFEpidTOF)
39 //___________________________________________________________________
40 AliHFEpidTOF::AliHFEpidTOF():
48 memset(fSigmaBordersTOFLower, 0, sizeof(Float_t) * 12);
49 memset(fSigmaBordersTOFUpper, 0, sizeof(Float_t) * 12);
52 //___________________________________________________________________
53 AliHFEpidTOF::AliHFEpidTOF(const Char_t *name):
60 memset(fSigmaBordersTOFLower, 0, sizeof(Float_t) * 12);
61 memset(fSigmaBordersTOFUpper, 0, sizeof(Float_t) * 12);
65 //___________________________________________________________________
66 AliHFEpidTOF::AliHFEpidTOF(const AliHFEpidTOF &c):
76 //___________________________________________________________________
77 AliHFEpidTOF &AliHFEpidTOF::operator=(const AliHFEpidTOF &ref){
79 // Assignment operator
88 //___________________________________________________________________
89 AliHFEpidTOF::~AliHFEpidTOF(){
94 //___________________________________________________________________
95 void AliHFEpidTOF::Copy(TObject &ref) const {
97 // Performs the copying of the object
99 AliHFEpidTOF &target = dynamic_cast<AliHFEpidTOF &>(ref);
101 target.fNsigmaTOF = fNsigmaTOF;
102 memcpy(target.fSigmaBordersTOFLower, fSigmaBordersTOFLower, sizeof(Float_t) * 12);
103 memcpy(target.fSigmaBordersTOFUpper, fSigmaBordersTOFUpper, sizeof(Float_t) * 12);
105 AliHFEpidBase::Copy(ref);
107 //___________________________________________________________________
108 Bool_t AliHFEpidTOF::InitializePID(Int_t /*run*/){
110 // InitializePID: TOF experts have to implement code here
115 //___________________________________________________________________
116 Int_t AliHFEpidTOF::IsSelected(const AliHFEpidObject *track, AliHFEpidQAmanager *pidqa) const
119 // TOF PID based on n-Sigma cut
120 // Selects Protons and Kaons via n-sigma cut up to 3 GeV/c
121 // In addition histos for n-sigma before (all species) and after (only closest species) are filled
123 if(!fkPIDResponse) return 0;
124 AliDebug(2, "PID object available");
126 const AliVTrack *vtrack = dynamic_cast<const AliVTrack *>(track->GetRecTrack());
127 if(!(vtrack && (vtrack->GetStatus() & AliESDtrack::kTOFpid))) return 0;
128 AliDebug(2, "Track Has TOF PID");
130 if(pidqa) pidqa->ProcessTrack(track, AliHFEpid::kTOFpid, AliHFEdetPIDqa::kBeforePID);
132 // Fill before selection
133 Double_t sigEle = fkPIDResponse->NumberOfSigmasTOF(track->GetRecTrack(), AliPID::kElectron);
134 AliDebug(2, Form("Number of sigmas in TOF: %f", sigEle));
136 if(TestBit(kSigmaBand)){
137 Int_t centrality = track->IsPbPb() ? track->GetCentrality() + 1 : 0;
138 AliDebug(2, Form("Centrality: %d\n", centrality));
139 if(centrality > 11) return kFALSE;
140 if(sigEle > fSigmaBordersTOFLower[centrality] && sigEle < fSigmaBordersTOFUpper[centrality]) pdg = 11;
143 if(TMath::Abs(sigEle) < fNsigmaTOF) pdg = 11;
146 if(pdg == 11 && pidqa) pidqa->ProcessTrack(track, AliHFEpid::kTOFpid, AliHFEdetPIDqa::kAfterPID);
150 //___________________________________________________________________
151 void AliHFEpidTOF::SetTOFnSigmaBand(Float_t lower, Float_t upper)
154 // Lower and higher cut independant of the centrality
157 for(Int_t k=0; k < 12; k++) {
158 fSigmaBordersTOFLower[k] = lower;
159 fSigmaBordersTOFUpper[k] = upper;
162 SetBit(kSigmaBand, kTRUE);
165 //___________________________________________________________________
166 void AliHFEpidTOF::SetTOFnSigmaBandCentrality(Float_t lower, Float_t upper, Int_t centralityBin)
169 // Lower and higher cut as function of centrality
172 if(centralityBin < 11) {
173 fSigmaBordersTOFLower[centralityBin+1] = lower;
174 fSigmaBordersTOFUpper[centralityBin+1] = upper;
177 SetBit(kSigmaBand, kTRUE);