1 #ifndef ALICONVERSIONCUTS_H
2 #define ALICONVERSIONCUTS_H
4 // Class handling all kinds of selection cuts for Gamma Conversion analysis
5 // Authors: Svein Lindal, Daniel Lohner *
7 #include "AliAODpidUtil.h"
8 #include "AliConversionPhotonBase.h"
9 #include "AliAODConversionMother.h"
10 #include "AliAODTrack.h"
11 #include "AliESDtrack.h"
12 #include "AliVTrack.h"
13 #include "AliAODTrack.h"
15 #include "AliAnalysisCuts.h"
17 #include "AliAnalysisUtils.h"
18 #include "AliAnalysisManager.h"
22 class AliConversionPhotonBase;
27 class AliAnalysisCuts;
30 class AliAnalysisManager;
31 class AliAODMCParticle;
35 class AliConversionCuts : public AliAnalysisCuts {
56 kpiMaxMomdedxSigmaCut,
57 kLowPRejectionSigmaCut,
62 kdoPhotonAsymmetryCut,
83 Bool_t SetCutIds(TString cutString);
85 Bool_t SetCut(cutIds cutID, Int_t cut);
86 Bool_t UpdateCutString();
89 static const char * fgkCutNames[kNCuts];
91 Double_t GetCosineOfPointingAngle(const AliConversionPhotonBase * photon, AliVEvent * event) const;
94 Bool_t InitializeCutsFromCutString(const TString analysisCutSelection);
95 void SelectCollisionCandidates(UInt_t offlineTriggerMask = AliVEvent::kAny) {
96 fOfflineTriggerMask = offlineTriggerMask;
97 fTriggerSelectedManually = kTRUE;
99 void SelectSpecialTrigger(UInt_t offlineTriggerMask = AliVEvent::kAny, TString TriggerClassName = "AliVEvent::kAny" ) {
100 fOfflineTriggerMask = offlineTriggerMask;
101 fSpecialTriggerName = TriggerClassName;
102 cout << fSpecialTriggerName.Data() << endl;
105 void FillElectonLabelArray(AliAODConversionPhoton* photon, Int_t nV0);
106 void SetAcceptedHeader(TList *HeaderList){fHeaderList = HeaderList;}
107 void SetPreSelectionCutFlag(Bool_t preSelFlag){fPreSelCut = preSelFlag;}
108 TString *GetFoundHeader(){return fGeneratorNames;}
110 Int_t GetEventQuality(){return fEventQuality;}
111 Bool_t GetIsFromPileup(){return fRemovePileUp;}
113 AliConversionCuts(const char *name="V0Cuts", const char * title="V0 Cuts");
114 AliConversionCuts(const AliConversionCuts&);
115 AliConversionCuts& operator=(const AliConversionCuts&);
117 virtual ~AliConversionCuts(); //virtual destructor
119 static AliConversionCuts * GetStandardCuts2010PbPb();
120 static AliConversionCuts * GetStandardCuts2010pp();
122 virtual Bool_t IsSelected(TObject* /*obj*/){return kTRUE;}
123 virtual Bool_t IsSelected(TList* /*list*/) {return kTRUE;}
125 TString GetCutNumber();
127 void GetCentralityRange(Double_t range[2]){range[0]=10*fCentralityMin;range[1]=10*fCentralityMax;};
130 Bool_t EventIsSelected(AliVEvent *fInputEvent, AliVEvent *fMCEvent);
131 Int_t IsEventAcceptedByConversionCut(AliConversionCuts *ReaderCuts, AliVEvent *InputEvent, AliMCEvent *MCEvent, Bool_t isHeavyIon);
132 Bool_t PhotonIsSelected(AliConversionPhotonBase * photon, AliVEvent * event);
133 Bool_t PhotonIsSelectedMC(TParticle *particle,AliStack *fMCStack,Bool_t checkForConvertedGamma=kTRUE);
134 Bool_t PhotonIsSelectedAODMC(AliAODMCParticle *particle,TClonesArray *aodmcArray,Bool_t checkForConvertedGamma=kTRUE);
135 Bool_t ElectronIsSelectedMC(TParticle *particle,AliStack *fMCStack);
136 Bool_t TracksAreSelected(AliVTrack * negTrack, AliVTrack * posTrack);
137 Bool_t MesonIsSelected(AliAODConversionMother *pi0,Bool_t IsSignal=kTRUE);
138 Bool_t MesonIsSelectedMC(TParticle *fMCMother,AliStack *fMCStack, Bool_t bMCDaughtersInAcceptance=kFALSE);
140 void InitAODpidUtil(Int_t type);
141 Bool_t InitPIDResponse();
143 void SetPIDResponse(AliPIDResponse * pidResponse) {fPIDResponse = pidResponse;}
144 AliPIDResponse * GetPIDResponse() { return fPIDResponse;}
148 void InitCutHistograms(TString name="",Bool_t preCut = kTRUE);
149 void SetFillCutHistograms(TString name="",Bool_t preCut = kTRUE){if(!fHistograms){InitCutHistograms(name,preCut);};}
150 TList *GetCutHistograms(){return fHistograms;}
151 void FillPhotonCutIndex(Int_t photoncut){if(hCutIndex)hCutIndex->Fill(photoncut);}
152 void SetEtaShift(Double_t etaShift) {
153 fEtaShift = etaShift;
154 fLineCutZRSlope = tan(2*atan(exp(-fEtaCut + etaShift)));
155 if(fEtaCutMin > -0.1)
156 fLineCutZRSlopeMin = tan(2*atan(exp(-fEtaCutMin + etaShift)));
158 void SetEtaShift(TString pPbOrPbp) {
159 Double_t etaShift = 0.0;
160 if(!pPbOrPbp.CompareTo("pPb")) etaShift = -0.465;
161 else if(!pPbOrPbp.CompareTo("Pbp")) etaShift = 0.465;
163 fEtaShift = etaShift;
164 fLineCutZRSlope = tan(2*atan(exp(-fEtaCut + etaShift)));
165 if(fEtaCutMin > -0.1)
166 fLineCutZRSlopeMin = tan(2*atan(exp(-fEtaCutMin + etaShift)));
168 Double_t GetEtaShift() {return fEtaShift;}
169 Bool_t GetDoEtaShift(){return fDoEtaShift;}
170 void DoEtaShift(Bool_t doEtaShift){fDoEtaShift = doEtaShift;}
171 void GetCorrectEtaShiftFromPeriod(TString periodName);
173 static AliVTrack * GetTrack(AliVEvent * event, Int_t label);
174 static AliESDtrack *GetESDTrack(AliESDEvent * event, Int_t label);
177 Bool_t SpecificTrackCuts(AliAODTrack * negTrack, AliAODTrack * posTrack,Int_t &cutIndex);
178 Bool_t SpecificTrackCuts(AliESDtrack * negTrack, AliESDtrack * posTrack,Int_t &cutIndex);
179 Bool_t AcceptanceCuts(AliConversionPhotonBase *photon);
180 Bool_t AcceptanceCut(TParticle *particle, TParticle * ePos,TParticle* eNeg);
181 Bool_t dEdxCuts(AliVTrack * track);
182 Bool_t ArmenterosQtCut(AliConversionPhotonBase *photon);
183 Bool_t AsymmetryCut(AliConversionPhotonBase *photon,AliVEvent *event);
184 Bool_t PIDProbabilityCut(AliConversionPhotonBase *photon, AliVEvent * event);
185 Bool_t SelectV0Finder(Bool_t onfly){
186 if(onfly == fUseOnFlyV0Finder) return kTRUE;
189 Bool_t PhotonCuts(AliConversionPhotonBase *photon,AliVEvent *event);
190 Bool_t CorrectedTPCClusterCut(AliConversionPhotonBase *photon, AliVEvent * event);
191 Bool_t PsiPairCut(const AliConversionPhotonBase * photon) const;
192 Bool_t CosinePAngleCut(const AliConversionPhotonBase * photon, AliVEvent * event) const;
193 Bool_t RejectSharedElectronV0s(AliAODConversionPhoton* photon, Int_t nV0, Int_t nV0s);
194 Bool_t RejectToCloseV0s(AliAODConversionPhoton* photon, TList *photons, Int_t nV0);
195 Int_t IsParticleFromBGEvent(Int_t index, AliStack *MCStack, AliVEvent *InputEvent = 0x0);
196 void GetNotRejectedParticles(Int_t rejection, TList *HeaderList, AliVEvent *MCEvent);
197 void SetUseReweightingWithHistogramFromFile( Bool_t pi0reweight=kTRUE, Bool_t etareweight=kFALSE, Bool_t k0sreweight=kFALSE, TString path="$ALICE_ROOT/PWGGA/GammaConv/MCSpectraInput.root",
198 TString histoNamePi0 = "", TString histoNameEta = "", TString histoNameK0s = "",
199 TString fitNamePi0 = "", TString fitNameEta = "", TString fitNameK0s ="" ) {
200 AliInfo(Form("enabled reweighting for: pi0 : %i, eta: %i, K0s: %i",pi0reweight, etareweight, k0sreweight));
201 fDoReweightHistoMCPi0 = pi0reweight;
202 fDoReweightHistoMCEta = etareweight;
203 fDoReweightHistoMCK0s = k0sreweight;
204 fPathTrFReweighting=path;
205 fNameHistoReweightingPi0 =histoNamePi0;
206 fNameHistoReweightingEta =histoNameEta;
207 fNameHistoReweightingK0s =histoNameK0s;
208 fNameFitDataPi0 =fitNamePi0;
209 fNameFitDataEta =fitNameEta;
210 fNameFitDataK0s =fitNameK0s;
213 void LoadReweightingHistosMCFromFile ();
215 Bool_t IsCentralitySelected(AliVEvent *fInputEvent, AliVEvent *fMCEvent = NULL);
216 Double_t GetCentrality(AliVEvent *event);
217 Int_t GetNumberOfContributorsVtx(AliVEvent *event);
218 Bool_t VertexZCut(AliVEvent *fInputEvent);
219 Bool_t IsTriggerSelected(AliVEvent *fInputEvent);
220 Bool_t HasV0AND(){return fHasV0AND;}
221 Bool_t IsSDDFired(){return fIsSDDFired;}
222 Int_t IsSpecialTrigger(){return fSpecialTrigger;}
223 TString GetSpecialTriggerName(){return fSpecialTriggerName;}
225 // Set Individual Cuts
226 Bool_t SetRCut(Int_t RCut);
227 Bool_t SetV0Finder(Int_t v0FinderType);
228 Bool_t SetChi2GammaCut(Int_t chi2GammaCut);
229 Bool_t SetTPCdEdxCutPionLine(Int_t pidedxSigmaCut);
230 Bool_t SetTPCdEdxCutElectronLine(Int_t ededxSigmaCut);
231 Bool_t SetSinglePtCut(Int_t singlePtCut);
232 Bool_t SetTPCClusterCut(Int_t clsTPCCut);
233 Bool_t SetEtaCut(Int_t etaCut);
234 Bool_t SetMinMomPiondEdxCut(Int_t piMinMomdedxSigmaCut);
235 Bool_t SetMaxMomPiondEdxCut(Int_t piMaxMomdedxSigmaCut);
236 Bool_t SetLowPRejectionCuts(Int_t LowPRejectionSigmaCut);
237 Bool_t SetQtMaxCut(Int_t QtMaxCut);
238 Bool_t SetTOFElectronPIDCut(Int_t TOFelectronPID);
239 Bool_t SetTRDElectronCut(Int_t TRDElectronCut);
240 Bool_t SetCentralityMin(Int_t useCentrality);
241 Bool_t SetIsHeavyIon(Int_t isHeavyIon);
242 Bool_t SetCentralityMax(Int_t centralityBin);
243 Bool_t SetPhotonAsymmetryCut(Int_t doPhotonAsymmetryCut);
244 Bool_t SetRemovePileUp(Int_t removePileUp);
245 Bool_t SetMultiplicityMethod(Int_t multiplicityMethod);
246 Int_t SetSelectSpecialTrigger(Int_t selectSpecialTrigger);
247 Bool_t SetCosPAngleCut(Int_t cosCut);
248 Bool_t SetPsiPairCut(Int_t psiCut);
249 Bool_t SetSharedElectronCut(Int_t sharedElec);
250 Bool_t SetToCloseV0sCut(Int_t toClose);
251 Bool_t SetRejectExtraSignalsCut(Int_t extraSignal);
252 Bool_t SetDCARPhotonPrimVtxCut(Int_t DCARPhotonPrimVtx);
253 Bool_t SetDCAZPhotonPrimVtxCut(Int_t DCAZPhotonPrimVtx);
257 Int_t IsHeavyIon(){return fIsHeavyIon;}
258 Int_t GetFirstTPCRow(Double_t radius);
259 Float_t GetWeightForMeson(TString period, Int_t index, AliStack *MCStack, AliVEvent *InputEvent = 0x0);
261 Bool_t UseElecSharingCut(){return fDoSharedElecCut;}
262 Bool_t UseToCloseV0sCut(){return fDoToCloseV0sCut;}
263 Int_t GetMultiplicityMethod(){return fMultiplicityMethod;}
264 Double_t GetEtaCut(){return fEtaCut;}
265 Int_t GetSignalRejection(){return fRejectExtraSignals;}
266 Int_t GetNAcceptedHeaders(){return fnHeaders; }
267 TString * GetAcceptedHeaderNames(){return fGeneratorNames;}
268 Int_t * GetAcceptedHeaderStart(){return fNotRejectedStart;}
269 Int_t * GetAcceptedHeaderEnd(){return fNotRejectedEnd;}
270 TList* GetAcceptedHeader(){return fHeaderList;}
276 AliPIDResponse *fPIDResponse;
279 Int_t fEventQuality; // EventQuality
281 Double_t fMaxR; //r cut
282 Double_t fMinR; //r cut
283 Double_t fEtaCut; //eta cut
284 Double_t fEtaCutMin; //eta cut
285 Double_t fPtCut; // pt cut
286 Double_t fSinglePtCut; // pt cut for electron/positron
287 Double_t fMaxZ; //z cut
288 Double_t fMinClsTPC; // minimum clusters in the TPC
289 Double_t fMinClsTPCToF; // minimum clusters to findable clusters
290 Double_t fLineCutZRSlope; //linecut
291 Double_t fLineCutZValue; //linecut
292 Double_t fLineCutZRSlopeMin; //linecut
293 Double_t fLineCutZValueMin; //linecut
294 Double_t fChi2CutConversion; //chi2cut
295 Double_t fPIDProbabilityCutNegativeParticle;
296 Double_t fPIDProbabilityCutPositiveParticle;
297 Bool_t fDodEdxSigmaCut; // flag to use the dEdxCut based on sigmas
298 Bool_t fDoTOFsigmaCut; // flag to use TOF pid cut RRnewTOF
299 Double_t fPIDTRDEfficiency; // required electron efficiency for TRD PID
300 Bool_t fDoTRDPID; // flag to use TRD pid
301 Double_t fPIDnSigmaAboveElectronLine; // sigma cut
302 Double_t fPIDnSigmaBelowElectronLine; // sigma cut
303 Double_t fTofPIDnSigmaAboveElectronLine; // sigma cut RRnewTOF
304 Double_t fTofPIDnSigmaBelowElectronLine; // sigma cut RRnewTOF
305 Double_t fPIDnSigmaAbovePionLine; // sigma cut
306 Double_t fPIDnSigmaAbovePionLineHighPt; // sigma cut
307 Double_t fPIDMinPnSigmaAbovePionLine; // sigma cut
308 Double_t fPIDMaxPnSigmaAbovePionLine; // sigma cut
309 Double_t fDoKaonRejectionLowP; // Kaon rejection at low p
310 Double_t fDoProtonRejectionLowP; // Proton rejection at low p
311 Double_t fDoPionRejectionLowP; // Pion rejection at low p
312 Double_t fPIDnSigmaAtLowPAroundKaonLine; // sigma cut
313 Double_t fPIDnSigmaAtLowPAroundProtonLine; // sigma cut
314 Double_t fPIDnSigmaAtLowPAroundPionLine; // sigma cut
315 Double_t fPIDMinPKaonRejectionLowP; // Momentum limit to apply kaon rejection
316 Double_t fPIDMinPProtonRejectionLowP; // Momentum limit to apply proton rejection
317 Double_t fPIDMinPPionRejectionLowP; // Momentum limit to apply proton rejection
318 Bool_t fDoQtGammaSelection; // Select gammas using qtMax
319 Bool_t fDoHighPtQtGammaSelection; // RRnew Select gammas using qtMax for high pT
320 Double_t fQtMax; // Maximum Qt from Armenteros to select Gammas
321 Double_t fHighPtQtMax; // RRnew Maximum Qt for High pT from Armenteros to select Gammas
322 Double_t fPtBorderForQt; // RRnew
323 Double_t fXVertexCut; //vertex cut
324 Double_t fYVertexCut; //vertex cut
325 Double_t fZVertexCut; // vertexcut
326 Double_t fNSigmaMass; //nsigma cut
327 Bool_t fUseEtaMinCut; //flag
328 Bool_t fUseOnFlyV0Finder; //flag
329 Bool_t fDoPhotonAsymmetryCut; // flag to use the PhotonAsymetryCut
330 Double_t fMinPPhotonAsymmetryCut; // Min Momentum for Asymmetry Cut
331 Double_t fMinPhotonAsymmetry; // Asymmetry Cut
332 Int_t fIsHeavyIon; // flag for heavy ion
333 Int_t fDetectorCentrality; // centrality detecotor V0M or CL1
334 Int_t fModCentralityClass; // allows to select smaller centrality classes
335 Double_t fMaxVertexZ; // max z offset of vertex
336 Int_t fCentralityMin; // centrality selection lower bin value
337 Int_t fCentralityMax; // centrality selection upper bin value
338 Bool_t fUseCorrectedTPCClsInfo; // flag to use corrected tpc cl info
339 Bool_t fUseTOFpid; // flag to use tof pid
340 Int_t fMultiplicityMethod; // selected multiplicity method
341 Int_t fSpecialTrigger; // flag
342 Bool_t fRemovePileUp; //flag
343 Float_t fOpeningAngle; // min opening angle for meson
345 Float_t fCosPAngleCut;
346 Bool_t fDoToCloseV0sCut; //
347 Int_t fRejectExtraSignals;//
348 Double_t fminV0Dist; //
349 Bool_t fDoSharedElecCut; //
350 UInt_t fOfflineTriggerMask; // Task processes collision candidates only
351 Bool_t fHasV0AND; // V0AND Offline Trigger
352 Bool_t fIsSDDFired; // SDD FIRED to select with SDD events
354 Int_t fElectronArraySize; // Size of electron array
355 Int_t *fElectronLabelArray; //[fElectronArraySize]
356 Double_t fDCAZPrimVtxCut; // cut value for the maximum distance in Z between the photon & the primary vertex [cm]
357 Double_t fDCARPrimVtxCut; // cut value for the maximum distance in R between the photon & the primary vertex [cm]
358 Float_t fConversionPointXArray; // Array with conversion Point x
359 Float_t fConversionPointYArray; // Array with conversion Point y
360 Float_t fConversionPointZArray; // Array with conversion Point z
361 Int_t fnHeaders; // Number of Headers
362 Int_t *fNotRejectedStart; //[fnHeaders]
363 Int_t *fNotRejectedEnd; //[fnHeaders]
364 TString *fGeneratorNames; //[fnHeaders]
365 TObjString *fCutString; // cut number used for analysis
366 AliAnalysisUtils *fUtils;
368 Bool_t fDoEtaShift; // Flag for Etashift
369 Bool_t fDoReweightHistoMCPi0; // Flag for reweighting Pi0 input with histogram
370 Bool_t fDoReweightHistoMCEta; // Flag for reweighting Eta input with histogram
371 Bool_t fDoReweightHistoMCK0s; // Flag for reweighting K0s input with histogram
372 TString fPathTrFReweighting; // Path for file used in reweighting
373 TString fNameHistoReweightingPi0; //Histogram name for reweighting Pi0
374 TString fNameHistoReweightingEta; //Histogram name for reweighting Eta
375 TString fNameHistoReweightingK0s; //Histogram name for reweighting K0s
376 TString fNameFitDataPi0; //Fit name for fit to spectrum of pi0s in Data
377 TString fNameFitDataEta; //Fit name for fit to spectrum of etas in Data
378 TString fNameFitDataK0s; //Fit name for fit to spectrum of k0s in Data
380 TH1F *hdEdxCuts; // bookkeeping for dEdx cuts
381 TH2F *hTPCdEdxbefore; // TPC dEdx before cuts
382 TH2F *hTPCdEdxafter; // TPC dEdx after cuts
383 TH2F *hTPCdEdxSigbefore; // TPC Sigma dEdx before cuts
384 TH2F *hTPCdEdxSigafter; // TPC Sigm dEdx after cuts
385 TH2F *hTOFbefore; // TOF before cuts
386 TH2F *hTOFSigbefore; // TOF Sigma before cuts
387 TH2F *hTOFSigafter; // TOF Sigma after cuts
388 TH1F *hTrackCuts; // bookkeeping for track cuts
389 TH1F *hPhotonCuts; // bookkeeping for photon specific cuts
390 TH1F *hInvMassbefore; // e+e- inv mass distribution before cuts
391 TH2F *hArmenterosbefore; // armenteros podolanski plot before cuts
392 TH1F *hInvMassafter; // e+e- inv mass distribution after cuts
393 TH2F *hArmenterosafter; // armenteros podolanski plot after cuts
394 TH1F *hAcceptanceCuts; // bookkeeping for acceptance cuts
395 TH1F *hCutIndex; // bookkeeping for cuts
396 TH1F *hV0EventCuts; // bookkeeping for event selection cuts
397 TH1F *hCentrality; // centrality distribution for selected events
398 TH2F *hCentralityVsNumberOfPrimaryTracks; // centrality distribution for selected events
399 TH1F *hVertexZ; // vertex z distribution for selected events
400 TH1F *hTriggerClass; //fired offline trigger class
401 TH1F *hTriggerClassSelected; //selected fired offline trigger class
402 TH1D *hReweightMCHistPi0; //histogram input for reweighting Pi0
403 TH1D *hReweightMCHistEta; //histogram input for reweighting Eta
404 TH1D *hReweightMCHistK0s; //histogram input for reweighting K0s
405 TF1 *fFitDataPi0; //fit to pi0 spectrum in Data
406 TF1 *fFitDataEta; //fit to eta spectrum in Data
407 TF1 *fFitDataK0s; //fit to K0s spectrum in Data
408 Bool_t fPreSelCut; // Flag for preselection cut used in V0Reader
409 Bool_t fTriggerSelectedManually; // Flag for manual trigger selection
410 TString fSpecialTriggerName; // Name of the Special Triggers
413 ClassDef(AliConversionCuts,5)
417 inline void AliConversionCuts::InitAODpidUtil(Int_t type) {
418 if (!fPIDResponse) fPIDResponse = new AliAODpidUtil();
419 Double_t alephParameters[5];
421 alephParameters[0] = 2.15898e+00/50.;
422 alephParameters[1] = 1.75295e+01;
423 alephParameters[2] = 3.40030e-09;
424 alephParameters[3] = 1.96178e+00;
425 alephParameters[4] = 3.91720e+00;
426 fPIDResponse->GetTOFResponse().SetTimeResolution(80.);
430 alephParameters[0] = 0.0283086/0.97;
431 alephParameters[1] = 2.63394e+01;
432 alephParameters[2] = 5.04114e-11;
433 alephParameters[3] = 2.12543e+00;
434 alephParameters[4] = 4.88663e+00;
435 fPIDResponse->GetTOFResponse().SetTimeResolution(130.);
436 fPIDResponse->GetTPCResponse().SetMip(50.);
439 fPIDResponse->GetTPCResponse().SetBetheBlochParameters(
440 alephParameters[0],alephParameters[1],alephParameters[2],
441 alephParameters[3],alephParameters[4]);
443 fPIDResponse->GetTPCResponse().SetSigma(3.79301e-03, 2.21280e+04);