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29bf19f2 1#ifndef ALIPIDRESPONSE_H
2#define ALIPIDRESPONSE_H
3/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5
6//---------------------------------------------------------------//
7// Base class for handling the pid response //
8// functions of all detectors //
9// and give access to the nsigmas //
10// //
11// Origin: Jens Wiechula, Uni Tuebingen, jens.wiechula@cern.ch //
12//---------------------------------------------------------------//
13
1d59271b 14#include "AliVParticle.h"
15#include "AliVTrack.h"
16
29bf19f2 17#include "AliITSPIDResponse.h"
18#include "AliTPCPIDResponse.h"
19#include "AliTRDPIDResponse.h"
20#include "AliTOFPIDResponse.h"
567624b5 21#include "AliHMPIDPIDResponse.h"
e96b9916 22#include "AliEMCALPIDResponse.h"
1d59271b 23#include "AliPID.h"
29bf19f2 24
25#include "TNamed.h"
26
4ec8e76d 27class TF1;
00a38d07 28class TObjArray;
f84b18dd 29class TLinearFitter;
00a38d07 30
31class AliVEvent;
32class AliTRDPIDResponseObject;
33class AliTOFPIDParams;
567624b5 34class AliHMPIDPIDParams;
1c9d11be 35class AliOADBContainer;
29bf19f2 36
37class AliPIDResponse : public TNamed {
38public:
4ec8e76d 39 AliPIDResponse(Bool_t isMC=kFALSE);
40 virtual ~AliPIDResponse();
29bf19f2 41
00a38d07 42 enum EDetector {
43 kITS=0,
44 kTPC=1,
45 kTRD=2,
46 kTOF=3,
47 kHMPID=4,
48 kEMCAL=5,
49 kPHOS=6,
50 kNdetectors=7
51 };
52
fd21ec8d 53 enum EDetCode {
54 kDetITS = 0x1,
55 kDetTPC = 0x2,
56 kDetTRD = 0x4,
57 kDetTOF = 0x8,
58 kDetHMPID = 0x10,
59 kDetEMCAL = 0x20,
60 kDetPHOS = 0x40
61 };
62
42fcc729 63 enum EBeamType {
64 kPP = 0,
65 kPPB,
66 kPBPB
67 };
68
29bf19f2 69 enum EStartTimeType_t {kFILL_T0,kTOF_T0, kT0_T0, kBest_T0};
fd21ec8d 70
71 enum ITSPIDmethod { kITSTruncMean, kITSLikelihood };
72
73 enum EDetPidStatus {
74 kDetNoSignal=0,
75 kDetPidOk=1,
355b831b 76 kDetMismatch=2,
77 kDetNoParams=3
fd21ec8d 78 };
f84b18dd 79
29bf19f2 80 AliITSPIDResponse &GetITSResponse() {return fITSResponse;}
81 AliTPCPIDResponse &GetTPCResponse() {return fTPCResponse;}
82 AliTOFPIDResponse &GetTOFResponse() {return fTOFResponse;}
83 AliTRDPIDResponse &GetTRDResponse() {return fTRDResponse;}
e96b9916 84 AliEMCALPIDResponse &GetEMCALResponse() {return fEMCALResponse;}
f84b18dd 85
355b831b 86 // -----------------------------------------
87 // buffered getters
88 //
89
90 // Number of sigmas
91 EDetPidStatus NumberOfSigmas(EDetector detCode, const AliVParticle *track, AliPID::EParticleType type, Double_t &val) const;
92
00a38d07 93 Float_t NumberOfSigmas(EDetector detCode, const AliVParticle *track, AliPID::EParticleType type) const;
29bf19f2 94
00a38d07 95 virtual Float_t NumberOfSigmasITS (const AliVParticle *track, AliPID::EParticleType type) const;
96 virtual Float_t NumberOfSigmasTPC (const AliVParticle *track, AliPID::EParticleType type) const;
f84b18dd 97 virtual Float_t NumberOfSigmasTPC (const AliVParticle *track, AliPID::EParticleType type, AliTPCPIDResponse::ETPCdEdxSource dedxSource) const;
5cd0300d 98 virtual Float_t NumberOfSigmasTRD (const AliVParticle *track, AliPID::EParticleType type) const;
00a38d07 99 virtual Float_t NumberOfSigmasEMCAL(const AliVParticle *track, AliPID::EParticleType type, Double_t &eop, Double_t showershape[4]) const;
1c9d11be 100 virtual Float_t NumberOfSigmasTOF (const AliVParticle *track, AliPID::EParticleType type) const;
f911e743 101 virtual Float_t NumberOfSigmasTOF (const AliVParticle *track, AliPID::EParticleType type, Float_t /*timeZeroTOF*/) const { return NumberOfSigmasTOF(track,type); }
567624b5 102 virtual Float_t NumberOfSigmasHMPID(const AliVParticle *track, AliPID::EParticleType type) const;
00a38d07 103 virtual Float_t NumberOfSigmasEMCAL(const AliVParticle *track, AliPID::EParticleType type) const;
104
1c9d11be 105 Bool_t IdentifiedAsElectronTRD(const AliVTrack *track, Double_t efficiencyLevel,Double_t centrality=-1,AliTRDPIDResponse::ETRDPIDMethod PIDmethod=AliTRDPIDResponse::kLQ1D) const;
239fe91c 106 Bool_t IdentifiedAsElectronTRD(const AliVTrack *track, Int_t &ntracklets, Double_t efficiencyLevel,Double_t centrality=-1,AliTRDPIDResponse::ETRDPIDMethod PIDmethod=AliTRDPIDResponse::kLQ1D) const;
107
29bf19f2 108
567624b5 109 // Signal delta
1d59271b 110 EDetPidStatus GetSignalDelta(EDetector detCode, const AliVParticle *track, AliPID::EParticleType type, Double_t &val, Bool_t ratio=kFALSE) const;
111 Double_t GetSignalDelta(EDetector detCode, const AliVParticle *track, AliPID::EParticleType type, Bool_t ratio=kFALSE) const;
567624b5 112
355b831b 113 // Probabilities
00a38d07 114 EDetPidStatus ComputePIDProbability (EDetCode detCode, const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
355b831b 115 EDetPidStatus ComputePIDProbability (EDetector detCode, const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
fd21ec8d 116
1c9d11be 117 virtual EDetPidStatus ComputeITSProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
118 virtual EDetPidStatus ComputeTPCProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
119 virtual EDetPidStatus ComputeTOFProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
355b831b 120 virtual EDetPidStatus ComputeTRDProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
1c9d11be 121 virtual EDetPidStatus ComputeEMCALProbability(const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
122 virtual EDetPidStatus ComputePHOSProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
123 virtual EDetPidStatus ComputeHMPIDProbability(const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
fd21ec8d 124
355b831b 125 virtual EDetPidStatus ComputeTRDProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[],AliTRDPIDResponse::ETRDPIDMethod PIDmethod) const;
126
127 // pid status
128 EDetPidStatus CheckPIDStatus(EDetector detCode, const AliVTrack *track) const;
129
c53e310b 130 AliTOFPIDParams *GetTOFPIDParams() const {return fTOFPIDParams;}
42fcc729 131 Float_t GetTOFMismatchProbability(const AliVTrack *track = NULL) const; // if empty argument return the value stored during TOF probability computation
132
fd21ec8d 133 void SetITSPIDmethod(ITSPIDmethod pmeth) { fITSPIDmethod = pmeth; }
ea235c90 134
4ec8e76d 135 void SetOADBPath(const char* path) {fOADBPath=path;}
80f28562 136 const char *GetOADBPath() const {return fOADBPath.Data();}
00a38d07 137
138 void SetCustomTPCpidResponse(const char* tpcpid) { fCustomTPCpidResponse = tpcpid; }
139 const char* GetCustomTPCpidResponse() const { return fCustomTPCpidResponse.Data(); }
140
141 void InitialiseEvent(AliVEvent *event, Int_t pass, Int_t run=-1);
ea235c90 142 void SetCurrentFile(const char* file) { fCurrentFile=file; }
87da0205 143
144 void SetCurrentAliRootRev(Int_t alirootRev) { fCurrentAliRootRev = alirootRev; }
145 Int_t GetCurrentAliRootRev() const { return fCurrentAliRootRev; }
4ec8e76d 146
00a38d07 147 // cache PID in the track
1c9d11be 148 void SetCachePID(Bool_t cache) { fCachePID=cache; }
149 Bool_t GetCachePID() const { return fCachePID; }
150 void FillTrackDetectorPID(const AliVTrack *track, EDetector detector) const;
00a38d07 151 void FillTrackDetectorPID();
152
e96b9916 153 AliVEvent * GetCurrentEvent() const {return fCurrentEvent;}
154
fd21ec8d 155 // User settings for the MC period and reco pass
156 void SetMCperiod(const char *mcPeriod) {fMCperiodUser=mcPeriod;}
157 void SetRecoPass(Int_t recoPass) {fRecoPassUser=recoPass;}
80f28562 158
159 // event info
160 Float_t GetCurrentCentrality() const {return fCurrCentrality;};
3524bf71 161 void SetCurrentCentrality(Float_t centrality) {fCurrCentrality=centrality;fEMCALResponse.SetCentrality(fCurrCentrality);};
f84b18dd 162 // TPC setting
163 void SetUseTPCEtaCorrection(Bool_t useEtaCorrection = kTRUE) { fUseTPCEtaCorrection = useEtaCorrection; };
164 Bool_t UseTPCEtaCorrection() const { return fUseTPCEtaCorrection; };
165
87da0205 166 void SetUseTPCMultiplicityCorrection(Bool_t useMultiplicityCorrection = kTRUE) { fUseTPCMultiplicityCorrection = useMultiplicityCorrection; };
167 Bool_t UseTPCMultiplicityCorrection() const { return fUseTPCMultiplicityCorrection; };
168
0b39f221 169 // TOF setting
c5fb644a 170 void SetTOFtail(Float_t tail=0.9){if(tail > 0) fTOFtail=tail; else printf("TOF tail should be greater than 0 (nothing done)\n");};
5f8db5fe 171 void SetTOFResponse(AliVEvent *vevent,EStartTimeType_t option);
0b39f221 172
539a5a59 173 virtual Float_t GetTPCsignalTunedOnData(const AliVTrack *t) const {return t->GetTPCsignal();};
a2c30af1 174 virtual Float_t GetTOFsignalTunedOnData(const AliVTrack *t) const {return t->GetTOFsignal();};
539a5a59 175 Bool_t IsTunedOnData() const {return fTuneMConData;};
176 void SetTunedOnData(Bool_t flag=kTRUE,Int_t recoPass=0){fTuneMConData = flag; if(recoPass>0) fRecoPassUser = recoPass;};
a2c30af1 177 Int_t GetTunedOnDataMask() const {return fTuneMConDataMask;};
178 void SetTunedOnDataMask(Int_t detMask) {fTuneMConDataMask = detMask;}
539a5a59 179
5a9dc560 180 // Utilities
181 TString GetChecksum(const TObject* obj) const;
182
4ec8e76d 183 AliPIDResponse(const AliPIDResponse &other);
184 AliPIDResponse& operator=(const AliPIDResponse &other);
80f28562 185
c53e310b 186
29bf19f2 187protected:
567624b5 188 AliITSPIDResponse fITSResponse; //PID response function of the ITS
189 AliTPCPIDResponse fTPCResponse; //PID response function of the TPC
190 AliTRDPIDResponse fTRDResponse; //PID response function of the TRD
191 AliTOFPIDResponse fTOFResponse; //PID response function of the TOF
192 AliHMPIDPIDResponse fHMPIDResponse; //PID response function of the HMPID
e96b9916 193 AliEMCALPIDResponse fEMCALResponse; //PID response function of the EMCAL
4ec8e76d 194
fd21ec8d 195 Float_t fRange; // nSigma max in likelihood
196 ITSPIDmethod fITSPIDmethod; // 0 = trunc mean; 1 = likelihood
197
1c9d11be 198 //unbuffered PID calculation
355b831b 199 virtual Float_t GetNumberOfSigmasTOFold (const AliVParticle */*track*/, AliPID::EParticleType /*type*/) const {return 0;}
1d59271b 200 virtual Float_t GetSignalDeltaTOFold(const AliVParticle */*track*/, AliPID::EParticleType /*type*/, Bool_t /*ratio*/=kFALSE) const {return -9999.;}
239fe91c 201
202 Int_t CalculateTRDResponse(const AliVTrack *track, Double_t p[],AliTRDPIDResponse::ETRDPIDMethod PIDmethod) const;
1c9d11be 203 EDetPidStatus GetComputeTRDProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[],AliTRDPIDResponse::ETRDPIDMethod PIDmethod=AliTRDPIDResponse::kLQ1D) const;
355b831b 204 EDetPidStatus GetTOFPIDStatus(const AliVTrack *track) const;
355b831b 205
a2c30af1 206 Bool_t fTuneMConData; // switch to force the MC to be similar to data
207 Int_t fTuneMConDataMask; // select for which detectors enable MC tuning on data
208
209
4ec8e76d 210private:
42fcc729 211 static Float_t fgTOFmismatchProb; // TOF mismatch probability (Bayesian)
212
4ec8e76d 213 Bool_t fIsMC; // If we run on MC data
1c9d11be 214 Bool_t fCachePID;
4ec8e76d 215
216 TString fOADBPath; // OADB path to use
00a38d07 217 TString fCustomTPCpidResponse; // Custom TPC Pid Response file for debugging purposes
4ec8e76d 218
219 TString fBeamType; //! beam type (PP) or (PBPB)
220 TString fLHCperiod; //! LHC period
221 TString fMCperiodTPC; //! corresponding MC period to use for the TPC splines
fd21ec8d 222 TString fMCperiodUser; // MC prodution requested by the user
ea235c90 223 TString fCurrentFile; //! name of currently processed file
87da0205 224 Int_t fCurrentAliRootRev; //! Aliroot rev. used to reconstruct the data
4ec8e76d 225 Int_t fRecoPass; //! reconstruction pass
fd21ec8d 226 Int_t fRecoPassUser; // reconstruction pass explicitly set by the user
4ec8e76d 227 Int_t fRun; //! current run number
228 Int_t fOldRun; //! current run number
78cbd205 229 Float_t fResT0A; //! T0A resolution in current run
230 Float_t fResT0C; //! T0C resolution in current run
231 Float_t fResT0AC; //! T0A.and.T0C resolution in current run
fd21ec8d 232
87da0205 233 TObjArray *fArrPidResponseMaster; //! TPC pid splines
234 TF1 *fResolutionCorrection; //! TPC resolution correction
235 AliOADBContainer* fOADBvoltageMaps; //! container with the voltage maps
236 Bool_t fUseTPCEtaCorrection; // Use TPC eta correction
237 Bool_t fUseTPCMultiplicityCorrection; // Use TPC multiplicity correction
f84b18dd 238
db0e2c5f 239 AliTRDPIDResponseObject *fTRDPIDResponseObject; //! TRD PID Response Object
ea235c90 240
0b39f221 241 Float_t fTOFtail; //! TOF tail effect used in TOF probability
b79db598 242 AliTOFPIDParams *fTOFPIDParams; //! TOF PID Params - period depending (OADB loaded)
567624b5 243
244 AliHMPIDPIDParams *fHMPIDPIDParams; //! HMPID PID Params (OADB loaded)
e96b9916 245
b2138b40 246 TObjArray *fEMCALPIDParams; //! EMCAL PID Params
247
e96b9916 248 AliVEvent *fCurrentEvent; //! event currently being processed
80f28562 249
250 Float_t fCurrCentrality; //! current centrality
42fcc729 251
252 EBeamType fBeamTypeNum; //! beam type enum
355b831b 253
4ec8e76d 254 void ExecNewRun();
255
256 //
257 //setup parametrisations
258 //
259
260 //ITS
261 void SetITSParametrisation();
262
263 //TPC
f84b18dd 264 void SetTPCEtaMaps(Double_t refineFactorMapX = 6.0, Double_t refineFactorMapY = 6.0, Double_t refineFactorSigmaMapX = 6.0,
265 Double_t refineFactorSigmaMapY = 6.0);
4ec8e76d 266 void SetTPCPidResponseMaster();
267 void SetTPCParametrisation();
268 Double_t GetTPCMultiplicityBin(const AliVEvent * const event);
f84b18dd 269
270 // TPC helpers for the eta maps
271 void AddPointToHyperplane(TH2D* h, TLinearFitter* linExtrapolation, Int_t binX, Int_t binY);
272 TH2D* RefineHistoViaLinearInterpolation(TH2D* h, Double_t refineFactorX = 6.0, Double_t refineFactorY = 6.0);
4ec8e76d 273
ea235c90 274 //TRD
275 void SetTRDPidResponseMaster();
276 void InitializeTRDResponse();
bd58d4b9 277 void SetTRDSlices(UInt_t TRDslicesForPID[2],AliTRDPIDResponse::ETRDPIDMethod method) const;
ea235c90 278
4ec8e76d 279 //TOF
b79db598 280 void SetTOFPidResponseMaster();
281 void InitializeTOFResponse();
b2138b40 282
567624b5 283 //HMPID
284 void SetHMPIDPidResponseMaster();
285 void InitializeHMPIDResponse();
286
b2138b40 287 //EMCAL
288 void SetEMCALPidResponseMaster();
289 void InitializeEMCALResponse();
290
4ec8e76d 291 //
292 void SetRecoInfo();
1c9d11be 293
355b831b 294 //-------------------------------------------------
1c9d11be 295 //unbuffered PID calculation
355b831b 296 //
297
298 // Number of sigmas
1c9d11be 299 Float_t GetNumberOfSigmas(EDetector detCode, const AliVParticle *track, AliPID::EParticleType type) const;
300 Float_t GetNumberOfSigmasITS (const AliVParticle *track, AliPID::EParticleType type) const;
301 Float_t GetNumberOfSigmasTPC (const AliVParticle *track, AliPID::EParticleType type) const;
5cd0300d 302 Float_t GetNumberOfSigmasTRD (const AliVParticle *track, AliPID::EParticleType type) const;
355b831b 303 Float_t GetNumberOfSigmasTOF (const AliVParticle *track, AliPID::EParticleType type) const;
567624b5 304 Float_t GetNumberOfSigmasHMPID(const AliVParticle *track, AliPID::EParticleType type) const;
1c9d11be 305 Float_t GetNumberOfSigmasEMCAL(const AliVParticle *track, AliPID::EParticleType type, Double_t &eop, Double_t showershape[4]) const;
306 Float_t GetNumberOfSigmasEMCAL(const AliVParticle *track, AliPID::EParticleType type) const;
307
355b831b 308 Float_t GetBufferedNumberOfSigmas(EDetector detCode, const AliVParticle *track, AliPID::EParticleType type) const;
567624b5 309
310 // Signal deltas
1d59271b 311 EDetPidStatus GetSignalDeltaITS(const AliVParticle *track, AliPID::EParticleType type, Double_t &val, Bool_t ratio=kFALSE) const;
312 EDetPidStatus GetSignalDeltaTPC(const AliVParticle *track, AliPID::EParticleType type, Double_t &val, Bool_t ratio=kFALSE) const;
5cd0300d 313 EDetPidStatus GetSignalDeltaTRD(const AliVParticle *track, AliPID::EParticleType type, Double_t &val, Bool_t ratio=kFALSE) const;
1d59271b 314 EDetPidStatus GetSignalDeltaTOF(const AliVParticle *track, AliPID::EParticleType type, Double_t &val, Bool_t ratio=kFALSE) const;
315 EDetPidStatus GetSignalDeltaHMPID(const AliVParticle *vtrack, AliPID::EParticleType type, Double_t &val, Bool_t ratio=kFALSE) const;
355b831b 316
317 // Probabilities
1c9d11be 318 EDetPidStatus GetComputePIDProbability (EDetector detCode, const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
319 EDetPidStatus GetComputeITSProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
320 EDetPidStatus GetComputeTPCProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
321 EDetPidStatus GetComputeTOFProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
322 EDetPidStatus GetComputeEMCALProbability(const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
323 EDetPidStatus GetComputePHOSProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
324 EDetPidStatus GetComputeHMPIDProbability(const AliVTrack *track, Int_t nSpecies, Double_t p[]) const;
355b831b 325
326 // pid status
327 EDetPidStatus GetPIDStatus(EDetector det, const AliVTrack *track) const;
328 EDetPidStatus GetITSPIDStatus(const AliVTrack *track) const;
329 EDetPidStatus GetTPCPIDStatus(const AliVTrack *track) const;
330 EDetPidStatus GetTRDPIDStatus(const AliVTrack *track) const;
331 EDetPidStatus GetHMPIDPIDStatus(const AliVTrack *track) const;
332 EDetPidStatus GetPHOSPIDStatus(const AliVTrack *track) const;
333 EDetPidStatus GetEMCALPIDStatus(const AliVTrack *track) const;
334
42fcc729 335 ClassDef(AliPIDResponse, 13); //PID response handling
29bf19f2 336};
337
29bf19f2 338#endif