| 76029adc |
1 | /************************************************************************** |
| 2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * |
| 3 | * * |
| 4 | * Author: The ALICE Off-line Project. * |
| 5 | * Contributors are mentioned in the code where appropriate. * |
| 6 | * * |
| 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 | **************************************************************************/ |
| 15 | |
| 16 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 17 | // |
| 18 | // Modified version of AliAnalysisTaskCheckCascade.cxx. |
| 19 | // This is a 'hybrid' output version, in that it uses a classic TTree |
| 20 | // ROOT object to store the candidates, plus a couple of histograms filled on |
| 21 | // a per-event basis for storing variables too numerous to put in a tree. |
| 22 | // |
| 23 | // --- Adapted to look for lambdas as well, using code from |
| 24 | // AliAnalysisTaskCheckPerformanceStrange.cxx |
| 25 | // |
| 26 | // --- Algorithm Description |
| 27 | // 1. Loop over primaries in stack to acquire generated charged Xi |
| 9a8f3aee |
28 | // 2. Loop over stack to find Cascades, fill TH3Fs "PrimRawPt"s for Efficiency |
| 76029adc |
29 | // 3. Perform Physics Selection |
| 30 | // 4. Perform Primary Vertex |z|<10cm selection |
| 31 | // 5. Perform Primary Vertex NoTPCOnly vertexing selection (>0 contrib.) |
| 32 | // 6. Perform Pileup Rejection |
| 33 | // 7. Analysis Loops: |
| 34 | // 7a. Fill TH3Fs "PrimAnalysisPt" for control purposes only |
| 76029adc |
35 | // |
| 36 | // Please Report Any Bugs! |
| 37 | // |
| 38 | // --- David Dobrigkeit Chinellato |
| 39 | // (david.chinellato@gmail.com) |
| 40 | // |
| 41 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 42 | |
| 43 | class TTree; |
| 44 | class TParticle; |
| 45 | class TVector3; |
| 46 | |
| 47 | //class AliMCEventHandler; |
| 48 | //class AliMCEvent; |
| 49 | //class AliStack; |
| 50 | |
| 51 | class AliESDVertex; |
| 52 | class AliAODVertex; |
| 53 | class AliESDv0; |
| 54 | class AliAODv0; |
| 55 | |
| 56 | #include <Riostream.h> |
| 57 | #include "TList.h" |
| 58 | #include "TH1.h" |
| 59 | #include "TH2.h" |
| 60 | #include "TH3.h" |
| 61 | #include "TFile.h" |
| 62 | #include "THnSparse.h" |
| 63 | #include "TVector3.h" |
| 64 | #include "TCanvas.h" |
| 65 | #include "TMath.h" |
| 66 | #include "TLegend.h" |
| 67 | #include "AliLog.h" |
| 68 | |
| 69 | #include "AliESDEvent.h" |
| 70 | #include "AliAODEvent.h" |
| 71 | #include "AliV0vertexer.h" |
| 72 | #include "AliCascadeVertexer.h" |
| 73 | #include "AliESDpid.h" |
| 74 | #include "AliESDtrack.h" |
| 75 | #include "AliESDtrackCuts.h" |
| 76 | #include "AliInputEventHandler.h" |
| 77 | #include "AliAnalysisManager.h" |
| 78 | #include "AliMCEventHandler.h" |
| 79 | #include "AliMCEvent.h" |
| 80 | #include "AliStack.h" |
| 81 | |
| 82 | #include "AliCFContainer.h" |
| 83 | #include "AliMultiplicity.h" |
| 84 | #include "AliAODMCParticle.h" |
| 85 | #include "AliESDcascade.h" |
| 86 | #include "AliAODcascade.h" |
| 87 | #include "AliESDUtils.h" |
| 88 | #include "AliGenEventHeader.h" |
| 89 | |
| 90 | #include "AliAnalysisTaskExtractPerformanceCascade.h" |
| 91 | |
| 92 | using std::cout; |
| 93 | using std::endl; |
| 94 | |
| 95 | ClassImp(AliAnalysisTaskExtractPerformanceCascade) |
| 96 | |
| 97 | AliAnalysisTaskExtractPerformanceCascade::AliAnalysisTaskExtractPerformanceCascade() |
| 98 | : AliAnalysisTaskSE(), fListHist(0), fTreeCascade(0), fPIDResponse(0), fESDtrackCuts(0), |
| 99 | fkIsNuclear ( kFALSE ), |
| 2213f6fc |
100 | fkSwitchINT7 ( kFALSE ), |
| 101 | |
| 102 | //------------------------------------------------ |
| 103 | // Tree Variables |
| 104 | //------------------------------------------------ |
| 105 | |
| 106 | fTreeCascVarCharge(0), |
| 107 | fTreeCascVarMassAsXi(0), |
| 108 | fTreeCascVarMassAsOmega(0), |
| 109 | fTreeCascVarPt(0), |
| 110 | fTreeCascVarPtMC(0), |
| 111 | fTreeCascVarRapMC(0), |
| 112 | fTreeCascVarRapXi(0), |
| 113 | fTreeCascVarRapOmega(0), |
| 114 | fTreeCascVarNegEta(0), |
| 115 | fTreeCascVarPosEta(0), |
| 116 | fTreeCascVarBachEta(0), |
| 117 | fTreeCascVarDCACascDaughters(0), |
| 118 | fTreeCascVarDCABachToPrimVtx(0), |
| 119 | fTreeCascVarDCAV0Daughters(0), |
| 120 | fTreeCascVarDCAV0ToPrimVtx(0), |
| 121 | fTreeCascVarDCAPosToPrimVtx(0), |
| 122 | fTreeCascVarDCANegToPrimVtx(0), |
| 123 | fTreeCascVarCascCosPointingAngle(0), |
| 124 | fTreeCascVarCascRadius(0), |
| 125 | fTreeCascVarV0Mass(0), |
| 126 | fTreeCascVarV0CosPointingAngle(0), |
| 127 | fTreeCascVarV0Radius(0), |
| 128 | fTreeCascVarLeastNbrClusters(0), |
| 129 | fTreeCascVarMultiplicity(0), |
| 130 | fTreeCascVarDistOverTotMom(0), |
| 131 | fTreeCascVarPID(0), |
| 132 | fTreeCascVarPIDBachelor(0), |
| 133 | fTreeCascVarPIDNegative(0), |
| 134 | fTreeCascVarPIDPositive(0), |
| 135 | fTreeCascVarPosTransMom(0), |
| 136 | fTreeCascVarNegTransMom(0), |
| 137 | fTreeCascVarPosTransMomMC(0), |
| 138 | fTreeCascVarNegTransMomMC(0), |
| 139 | fTreeCascVarNegNSigmaPion(0), |
| 140 | fTreeCascVarNegNSigmaProton(0), |
| 141 | fTreeCascVarPosNSigmaPion(0), |
| 142 | fTreeCascVarPosNSigmaProton(0), |
| 143 | fTreeCascVarBachNSigmaPion(0), |
| 144 | fTreeCascVarBachNSigmaKaon(0), |
| 76029adc |
145 | |
| 146 | //------------------------------------------------ |
| 147 | // HISTOGRAMS |
| 148 | // --- Filled on an Event-by-event basis |
| 149 | //------------------------------------------------ |
| 150 | fHistV0MultiplicityBeforeTrigSel(0), |
| 151 | fHistV0MultiplicityForTrigEvt(0), |
| 152 | fHistV0MultiplicityForSelEvt(0), |
| 153 | fHistV0MultiplicityForSelEvtNoTPCOnly(0), |
| 154 | fHistV0MultiplicityForSelEvtNoTPCOnlyNoPileup(0), |
| 155 | fHistMultiplicityBeforeTrigSel(0), |
| 156 | fHistMultiplicityForTrigEvt(0), |
| 157 | fHistMultiplicity(0), |
| 158 | fHistMultiplicityNoTPCOnly(0), |
| 159 | fHistMultiplicityNoTPCOnlyNoPileup(0), |
| 160 | |
| 161 | //------------------------------------------------ |
| 162 | // PARTICLE HISTOGRAMS |
| 163 | // --- Filled on a Particle-by-Particle basis |
| 164 | //------------------------------------------------ |
| 165 | f3dHistGenPtVsYVsMultXiMinus(0), |
| 166 | f3dHistGenPtVsYVsMultXiPlus(0), |
| 167 | f3dHistGenPtVsYVsMultOmegaMinus(0), |
| 168 | f3dHistGenPtVsYVsMultOmegaPlus(0), |
| 169 | f3dHistGenSelectedPtVsYVsMultXiMinus(0), |
| 170 | f3dHistGenSelectedPtVsYVsMultXiPlus(0), |
| 171 | f3dHistGenSelectedPtVsYVsMultOmegaMinus(0), |
| 172 | f3dHistGenSelectedPtVsYVsMultOmegaPlus(0), |
| 173 | fHistPVx(0), |
| 174 | fHistPVy(0), |
| 175 | fHistPVz(0), |
| 176 | fHistPVxAnalysis(0), |
| 177 | fHistPVyAnalysis(0), |
| 178 | fHistPVzAnalysis(0) |
| 179 | { |
| 180 | // Dummy Constructor |
| 181 | } |
| 182 | |
| 183 | AliAnalysisTaskExtractPerformanceCascade::AliAnalysisTaskExtractPerformanceCascade(const char *name) |
| 184 | : AliAnalysisTaskSE(name), fListHist(0), fTreeCascade(0), fPIDResponse(0), fESDtrackCuts(0), |
| 185 | fkIsNuclear ( kFALSE ), |
| 2213f6fc |
186 | fkSwitchINT7 ( kFALSE ), |
| 76029adc |
187 | |
| 2213f6fc |
188 | //------------------------------------------------ |
| 189 | // Tree Variables |
| 190 | //------------------------------------------------ |
| 191 | |
| 192 | fTreeCascVarCharge(0), |
| 193 | fTreeCascVarMassAsXi(0), |
| 194 | fTreeCascVarMassAsOmega(0), |
| 195 | fTreeCascVarPt(0), |
| 196 | fTreeCascVarPtMC(0), |
| 197 | fTreeCascVarRapMC(0), |
| 198 | fTreeCascVarRapXi(0), |
| 199 | fTreeCascVarRapOmega(0), |
| 200 | fTreeCascVarNegEta(0), |
| 201 | fTreeCascVarPosEta(0), |
| 202 | fTreeCascVarBachEta(0), |
| 203 | fTreeCascVarDCACascDaughters(0), |
| 204 | fTreeCascVarDCABachToPrimVtx(0), |
| 205 | fTreeCascVarDCAV0Daughters(0), |
| 206 | fTreeCascVarDCAV0ToPrimVtx(0), |
| 207 | fTreeCascVarDCAPosToPrimVtx(0), |
| 208 | fTreeCascVarDCANegToPrimVtx(0), |
| 209 | fTreeCascVarCascCosPointingAngle(0), |
| 210 | fTreeCascVarCascRadius(0), |
| 211 | fTreeCascVarV0Mass(0), |
| 212 | fTreeCascVarV0CosPointingAngle(0), |
| 213 | fTreeCascVarV0Radius(0), |
| 214 | fTreeCascVarLeastNbrClusters(0), |
| 215 | fTreeCascVarMultiplicity(0), |
| 216 | fTreeCascVarDistOverTotMom(0), |
| 217 | fTreeCascVarPID(0), |
| 218 | fTreeCascVarPIDBachelor(0), |
| 219 | fTreeCascVarPIDNegative(0), |
| 220 | fTreeCascVarPIDPositive(0), |
| 221 | fTreeCascVarPosTransMom(0), |
| 222 | fTreeCascVarNegTransMom(0), |
| 223 | fTreeCascVarPosTransMomMC(0), |
| 224 | fTreeCascVarNegTransMomMC(0), |
| 225 | fTreeCascVarNegNSigmaPion(0), |
| 226 | fTreeCascVarNegNSigmaProton(0), |
| 227 | fTreeCascVarPosNSigmaPion(0), |
| 228 | fTreeCascVarPosNSigmaProton(0), |
| 229 | fTreeCascVarBachNSigmaPion(0), |
| 230 | fTreeCascVarBachNSigmaKaon(0), |
| 231 | |
| 76029adc |
232 | //------------------------------------------------ |
| 233 | // HISTOGRAMS |
| 234 | // --- Filled on an Event-by-event basis |
| 235 | //------------------------------------------------ |
| 236 | fHistV0MultiplicityBeforeTrigSel(0), |
| 237 | fHistV0MultiplicityForTrigEvt(0), |
| 238 | fHistV0MultiplicityForSelEvt(0), |
| 239 | fHistV0MultiplicityForSelEvtNoTPCOnly(0), |
| 240 | fHistV0MultiplicityForSelEvtNoTPCOnlyNoPileup(0), |
| 241 | fHistMultiplicityBeforeTrigSel(0), |
| 242 | fHistMultiplicityForTrigEvt(0), |
| 243 | fHistMultiplicity(0), |
| 244 | fHistMultiplicityNoTPCOnly(0), |
| 245 | fHistMultiplicityNoTPCOnlyNoPileup(0), |
| 246 | |
| 247 | |
| 248 | //------------------------------------------------ |
| 249 | // PARTICLE HISTOGRAMS |
| 250 | // --- Filled on a Particle-by-Particle basis |
| 251 | //------------------------------------------------ |
| 252 | f3dHistGenPtVsYVsMultXiMinus(0), |
| 253 | f3dHistGenPtVsYVsMultXiPlus(0), |
| 254 | f3dHistGenPtVsYVsMultOmegaMinus(0), |
| 255 | f3dHistGenPtVsYVsMultOmegaPlus(0), |
| 256 | f3dHistGenSelectedPtVsYVsMultXiMinus(0), |
| 257 | f3dHistGenSelectedPtVsYVsMultXiPlus(0), |
| 258 | f3dHistGenSelectedPtVsYVsMultOmegaMinus(0), |
| 259 | f3dHistGenSelectedPtVsYVsMultOmegaPlus(0), |
| 260 | fHistPVx(0), |
| 261 | fHistPVy(0), |
| 262 | fHistPVz(0), |
| 263 | fHistPVxAnalysis(0), |
| 264 | fHistPVyAnalysis(0), |
| 265 | fHistPVzAnalysis(0) |
| 266 | { |
| 267 | // Constructor |
| d8841e95 |
268 | |
| 269 | //Set Variables for re-running the cascade vertexers (as done for MS paper) |
| 270 | |
| 271 | // New Loose : 1st step for the 7 TeV pp analysis |
| 272 | |
| 273 | fV0Sels[0] = 33. ; // max allowed chi2 |
| 274 | fV0Sels[1] = 0.02; // min allowed impact parameter for the 1st daughter (LHC09a4 : 0.05) |
| 275 | fV0Sels[2] = 0.02; // min allowed impact parameter for the 2nd daughter (LHC09a4 : 0.05) |
| 276 | fV0Sels[3] = 2.0 ; // max allowed DCA between the daughter tracks (LHC09a4 : 0.5) |
| 277 | fV0Sels[4] = 0.95; // min allowed cosine of V0's pointing angle (LHC09a4 : 0.99) |
| 278 | fV0Sels[5] = 1.0 ; // min radius of the fiducial volume (LHC09a4 : 0.2) |
| 279 | fV0Sels[6] = 100. ; // max radius of the fiducial volume (LHC09a4 : 100.0) |
| 280 | |
| 281 | fCascSels[0] = 33. ; // max allowed chi2 (same as PDC07) |
| 282 | fCascSels[1] = 0.05 ; // min allowed V0 impact parameter (PDC07 : 0.05 / LHC09a4 : 0.025 ) |
| 283 | fCascSels[2] = 0.010; // "window" around the Lambda mass (PDC07 : 0.008 / LHC09a4 : 0.010 ) |
| 284 | fCascSels[3] = 0.03 ; // min allowed bachelor's impact parameter (PDC07 : 0.035 / LHC09a4 : 0.025 ) |
| 285 | fCascSels[4] = 2.0 ; // max allowed DCA between the V0 and the bachelor (PDC07 : 0.1 / LHC09a4 : 0.2 ) |
| 286 | fCascSels[5] = 0.95 ; // min allowed cosine of the cascade pointing angle (PDC07 : 0.9985 / LHC09a4 : 0.998 ) |
| 287 | fCascSels[6] = 0.4 ; // min radius of the fiducial volume (PDC07 : 0.9 / LHC09a4 : 0.2 ) |
| 288 | fCascSels[7] = 100. ; // max radius of the fiducial volume (PDC07 : 100 / LHC09a4 : 100 ) |
| 289 | |
| 76029adc |
290 | // Output slot #0 writes into a TList container (Cascade) |
| 291 | DefineOutput(1, TList::Class()); |
| 292 | DefineOutput(2, TTree::Class()); |
| 293 | } |
| 294 | |
| 295 | |
| 296 | AliAnalysisTaskExtractPerformanceCascade::~AliAnalysisTaskExtractPerformanceCascade() |
| 297 | { |
| 298 | //------------------------------------------------ |
| 299 | // DESTRUCTOR |
| 300 | //------------------------------------------------ |
| 301 | |
| 302 | if (fListHist){ |
| 303 | delete fListHist; |
| 304 | fListHist = 0x0; |
| 305 | } |
| 306 | if (fTreeCascade){ |
| 307 | delete fTreeCascade; |
| 308 | fTreeCascade = 0x0; |
| 309 | } |
| 310 | //cleanup esd track cuts object too... |
| 311 | if (fESDtrackCuts){ |
| 312 | delete fESDtrackCuts; |
| 313 | fESDtrackCuts = 0x0; |
| 314 | } |
| 315 | |
| 316 | } |
| 317 | |
| 318 | //________________________________________________________________________ |
| 319 | void AliAnalysisTaskExtractPerformanceCascade::UserCreateOutputObjects() |
| 320 | { |
| 321 | OpenFile(2); |
| 322 | // Called once |
| 323 | |
| 324 | //------------------------------------------------ |
| 325 | |
| 326 | fTreeCascade = new TTree("fTreeCascade","CascadeCandidates"); |
| 327 | |
| 328 | //------------------------------------------------ |
| 329 | // fTreeCascade Branch definitions - Cascade Tree |
| 330 | //------------------------------------------------ |
| 331 | |
| 332 | //------------------------------------------------ |
| 333 | // fTreeCascade Branch definitions |
| 334 | //------------------------------------------------ |
| 335 | |
| 336 | //-----------BASIC-INFO--------------------------- |
| 337 | /* 1*/ fTreeCascade->Branch("fTreeCascVarCharge",&fTreeCascVarCharge,"fTreeCascVarCharge/I"); |
| 338 | /* 2*/ fTreeCascade->Branch("fTreeCascVarMassAsXi",&fTreeCascVarMassAsXi,"fTreeCascVarMassAsXi/F"); |
| 339 | /* 3*/ fTreeCascade->Branch("fTreeCascVarMassAsOmega",&fTreeCascVarMassAsOmega,"fTreeCascVarMassAsOmega/F"); |
| 340 | /* 4*/ fTreeCascade->Branch("fTreeCascVarPt",&fTreeCascVarPt,"fTreeCascVarPt/F"); |
| 341 | /* 5*/ fTreeCascade->Branch("fTreeCascVarPtMC",&fTreeCascVarPtMC,"fTreeCascVarPtMC/F"); |
| 342 | /* 6*/ fTreeCascade->Branch("fTreeCascVarRapXi",&fTreeCascVarRapXi,"fTreeCascVarRapXi/F"); |
| 343 | /* 7*/ fTreeCascade->Branch("fTreeCascVarRapMC",&fTreeCascVarRapMC,"fTreeCascVarRapMC/F"); |
| 344 | /* 8*/ fTreeCascade->Branch("fTreeCascVarRapOmega",&fTreeCascVarRapOmega,"fTreeCascVarRapOmega/F"); |
| 345 | /* 9*/ fTreeCascade->Branch("fTreeCascVarNegEta",&fTreeCascVarNegEta,"fTreeCascVarNegEta/F"); |
| 346 | /*10*/ fTreeCascade->Branch("fTreeCascVarPosEta",&fTreeCascVarPosEta,"fTreeCascVarPosEta/F"); |
| 347 | /*11*/ fTreeCascade->Branch("fTreeCascVarBachEta",&fTreeCascVarBachEta,"fTreeCascVarBachEta/F"); |
| 348 | //-----------INFO-FOR-CUTS------------------------ |
| 349 | /*12*/ fTreeCascade->Branch("fTreeCascVarDCACascDaughters",&fTreeCascVarDCACascDaughters,"fTreeCascVarDCACascDaughters/F"); |
| 350 | /*13*/ fTreeCascade->Branch("fTreeCascVarDCABachToPrimVtx",&fTreeCascVarDCABachToPrimVtx,"fTreeCascVarDCABachToPrimVtx/F"); |
| 351 | /*14*/ fTreeCascade->Branch("fTreeCascVarDCAV0Daughters",&fTreeCascVarDCAV0Daughters,"fTreeCascVarDCAV0Daughters/F"); |
| 352 | /*15*/ fTreeCascade->Branch("fTreeCascVarDCAV0ToPrimVtx",&fTreeCascVarDCAV0ToPrimVtx,"fTreeCascVarDCAV0ToPrimVtx/F"); |
| 353 | /*16*/ fTreeCascade->Branch("fTreeCascVarDCAPosToPrimVtx",&fTreeCascVarDCAPosToPrimVtx,"fTreeCascVarDCAPosToPrimVtx/F"); |
| 354 | /*17*/ fTreeCascade->Branch("fTreeCascVarDCANegToPrimVtx",&fTreeCascVarDCANegToPrimVtx,"fTreeCascVarDCANegToPrimVtx/F"); |
| 355 | /*18*/ fTreeCascade->Branch("fTreeCascVarCascCosPointingAngle",&fTreeCascVarCascCosPointingAngle,"fTreeCascVarCascCosPointingAngle/F"); |
| 356 | /*19*/ fTreeCascade->Branch("fTreeCascVarCascRadius",&fTreeCascVarCascRadius,"fTreeCascVarCascRadius/F"); |
| 357 | /*20*/ fTreeCascade->Branch("fTreeCascVarV0Mass",&fTreeCascVarV0Mass,"fTreeCascVarV0Mass/F"); |
| 358 | /*21*/ fTreeCascade->Branch("fTreeCascVarV0CosPointingAngle",&fTreeCascVarV0CosPointingAngle,"fTreeCascVarV0CosPointingAngle/F"); |
| 359 | /*22*/ fTreeCascade->Branch("fTreeCascVarV0Radius",&fTreeCascVarV0Radius,"fTreeCascVarV0Radius/F"); |
| 360 | /*23*/ fTreeCascade->Branch("fTreeCascVarLeastNbrClusters",&fTreeCascVarLeastNbrClusters,"fTreeCascVarLeastNbrClusters/I"); |
| 361 | //-----------MULTIPLICITY-INFO-------------------- |
| 362 | /*24*/ fTreeCascade->Branch("fTreeCascVarMultiplicity",&fTreeCascVarMultiplicity,"fTreeCascVarMultiplicity/I"); |
| 363 | //-----------DECAY-LENGTH-INFO-------------------- |
| 364 | /*25*/ fTreeCascade->Branch("fTreeCascVarDistOverTotMom",&fTreeCascVarDistOverTotMom,"fTreeCascVarDistOverTotMom/F"); |
| 365 | //-----------MC-PID------------------------------- |
| 366 | /*26*/ fTreeCascade->Branch("fTreeCascVarPID",&fTreeCascVarPID,"fTreeCascVarPID/I"); |
| 367 | /*27*/ fTreeCascade->Branch("fTreeCascVarPIDBachelor",&fTreeCascVarPIDBachelor,"fTreeCascVarPIDBachelor/I"); |
| 368 | /*28*/ fTreeCascade->Branch("fTreeCascVarPIDNegative",&fTreeCascVarPIDNegative,"fTreeCascVarPIDNegative/I"); |
| 369 | /*29*/ fTreeCascade->Branch("fTreeCascVarPIDPositive",&fTreeCascVarPIDPositive,"fTreeCascVarPIDPositive/I"); |
| 370 | /*30*/ fTreeCascade->Branch("fTreeCascVarPosTransMom",&fTreeCascVarPosTransMom,"fTreeCascVarPosTransMom/F"); |
| 371 | /*31*/ fTreeCascade->Branch("fTreeCascVarNegTransMom",&fTreeCascVarNegTransMom,"fTreeCascVarNegTransMom/F"); |
| 372 | /*32*/ fTreeCascade->Branch("fTreeCascVarPosTransMomMC",&fTreeCascVarPosTransMomMC,"fTreeCascVarPosTransMomMC/F"); |
| 373 | /*33*/ fTreeCascade->Branch("fTreeCascVarNegTransMomMC",&fTreeCascVarNegTransMomMC,"fTreeCascVarNegTransMomMC/F"); |
| 374 | //------------------------------------------------ |
| 375 | /*34*/ fTreeCascade->Branch("fTreeCascVarNegNSigmaPion",&fTreeCascVarNegNSigmaPion,"fTreeCascVarNegNSigmaPion/F"); |
| 376 | /*35*/ fTreeCascade->Branch("fTreeCascVarNegNSigmaProton",&fTreeCascVarNegNSigmaProton,"fTreeCascVarNegNSigmaProton/F"); |
| 377 | /*36*/ fTreeCascade->Branch("fTreeCascVarPosNSigmaPion",&fTreeCascVarPosNSigmaPion,"fTreeCascVarPosNSigmaPion/F"); |
| 378 | /*37*/ fTreeCascade->Branch("fTreeCascVarPosNSigmaProton",&fTreeCascVarPosNSigmaProton,"fTreeCascVarPosNSigmaProton/F"); |
| 379 | /*38*/ fTreeCascade->Branch("fTreeCascVarBachNSigmaPion",&fTreeCascVarBachNSigmaPion,"fTreeCascVarBachNSigmaPion/F"); |
| 380 | /*39*/ fTreeCascade->Branch("fTreeCascVarBachNSigmaKaon",&fTreeCascVarBachNSigmaKaon,"fTreeCascVarBachNSigmaKaon/F"); |
| 381 | |
| 382 | //------------------------------------------------ |
| 383 | // Particle Identification Setup |
| 384 | //------------------------------------------------ |
| 385 | |
| 386 | AliAnalysisManager *man=AliAnalysisManager::GetAnalysisManager(); |
| 387 | AliInputEventHandler* inputHandler = (AliInputEventHandler*) (man->GetInputEventHandler()); |
| 388 | fPIDResponse = inputHandler->GetPIDResponse(); |
| 389 | |
| 390 | // Multiplicity |
| 391 | |
| 392 | if(! fESDtrackCuts ){ |
| 393 | fESDtrackCuts = new AliESDtrackCuts(); |
| 394 | } |
| 395 | |
| 396 | //------------------------------------------------ |
| 397 | // V0 Multiplicity Histograms |
| 398 | //------------------------------------------------ |
| 399 | |
| 400 | // Create histograms |
| 401 | OpenFile(1); |
| 402 | fListHist = new TList(); |
| 403 | fListHist->SetOwner(); // See http://root.cern.ch/root/html/TCollection.html#TCollection:SetOwner |
| 404 | |
| 405 | |
| 406 | if(! fHistV0MultiplicityBeforeTrigSel) { |
| 407 | fHistV0MultiplicityBeforeTrigSel = new TH1F("fHistV0MultiplicityBeforeTrigSel", |
| 408 | "V0s per event (before Trig. Sel.);Nbr of V0s/Evt;Events", |
| 409 | 25, 0, 25); |
| 410 | fListHist->Add(fHistV0MultiplicityBeforeTrigSel); |
| 411 | } |
| 412 | |
| 413 | if(! fHistV0MultiplicityForTrigEvt) { |
| 414 | fHistV0MultiplicityForTrigEvt = new TH1F("fHistV0MultiplicityForTrigEvt", |
| 415 | "V0s per event (for triggered evt);Nbr of V0s/Evt;Events", |
| 416 | 25, 0, 25); |
| 417 | fListHist->Add(fHistV0MultiplicityForTrigEvt); |
| 418 | } |
| 419 | |
| 420 | if(! fHistV0MultiplicityForSelEvt) { |
| 421 | fHistV0MultiplicityForSelEvt = new TH1F("fHistV0MultiplicityForSelEvt", |
| 422 | "V0s per event;Nbr of V0s/Evt;Events", |
| 423 | 25, 0, 25); |
| 424 | fListHist->Add(fHistV0MultiplicityForSelEvt); |
| 425 | } |
| 426 | |
| 427 | if(! fHistV0MultiplicityForSelEvtNoTPCOnly) { |
| 428 | fHistV0MultiplicityForSelEvtNoTPCOnly = new TH1F("fHistV0MultiplicityForSelEvtNoTPCOnly", |
| 429 | "V0s per event;Nbr of V0s/Evt;Events", |
| 430 | 25, 0, 25); |
| 431 | fListHist->Add(fHistV0MultiplicityForSelEvtNoTPCOnly); |
| 432 | } |
| 433 | if(! fHistV0MultiplicityForSelEvtNoTPCOnlyNoPileup) { |
| 434 | fHistV0MultiplicityForSelEvtNoTPCOnlyNoPileup = new TH1F("fHistV0MultiplicityForSelEvtNoTPCOnlyNoPileup", |
| 435 | "V0s per event;Nbr of V0s/Evt;Events", |
| 436 | 25, 0, 25); |
| 437 | fListHist->Add(fHistV0MultiplicityForSelEvtNoTPCOnlyNoPileup); |
| 438 | } |
| 439 | |
| 440 | //------------------------------------------------ |
| 441 | // Track Multiplicity Histograms |
| 442 | //------------------------------------------------ |
| 443 | |
| 444 | if(! fHistMultiplicityBeforeTrigSel) { |
| 445 | fHistMultiplicityBeforeTrigSel = new TH1F("fHistMultiplicityBeforeTrigSel", |
| 446 | "Tracks per event;Nbr of Tracks;Events", |
| 447 | 200, 0, 200); |
| 448 | fListHist->Add(fHistMultiplicityBeforeTrigSel); |
| 449 | } |
| 450 | if(! fHistMultiplicityForTrigEvt) { |
| 451 | fHistMultiplicityForTrigEvt = new TH1F("fHistMultiplicityForTrigEvt", |
| 452 | "Tracks per event;Nbr of Tracks;Events", |
| 453 | 200, 0, 200); |
| 454 | fListHist->Add(fHistMultiplicityForTrigEvt); |
| 455 | } |
| 456 | if(! fHistMultiplicity) { |
| 457 | fHistMultiplicity = new TH1F("fHistMultiplicity", |
| 458 | "Tracks per event;Nbr of Tracks;Events", |
| 459 | 200, 0, 200); |
| 460 | fListHist->Add(fHistMultiplicity); |
| 461 | } |
| 462 | if(! fHistMultiplicityNoTPCOnly) { |
| 463 | fHistMultiplicityNoTPCOnly = new TH1F("fHistMultiplicityNoTPCOnly", |
| 464 | "Tracks per event;Nbr of Tracks;Events", |
| 465 | 200, 0, 200); |
| 466 | fListHist->Add(fHistMultiplicityNoTPCOnly); |
| 467 | } |
| 468 | if(! fHistMultiplicityNoTPCOnlyNoPileup) { |
| 469 | fHistMultiplicityNoTPCOnlyNoPileup = new TH1F("fHistMultiplicityNoTPCOnlyNoPileup", |
| 470 | "Tracks per event;Nbr of Tracks;Events", |
| 471 | 200, 0, 200); |
| 472 | fListHist->Add(fHistMultiplicityNoTPCOnlyNoPileup); |
| 473 | } |
| 474 | |
| 475 | //------------------------------------------------ |
| 476 | // Generated Particle Histograms |
| 477 | //------------------------------------------------ |
| 478 | |
| 479 | Int_t lCustomNBins = 200; |
| 480 | Double_t lCustomPtUpperLimit = 20; |
| 481 | Int_t lCustomNBinsMultiplicity = 100; |
| 482 | |
| 483 | //---------------------------------- |
| 484 | // Raw Generated (Pre-physics-selection) |
| 485 | //---------------------------------- |
| 486 | |
| 487 | //-------------------------------------------------------------------------------------- |
| 488 | //--- 3D Histo (Pt, Y, Multiplicity) for generated XiMinus/Plus, all generated |
| 489 | |
| 490 | if(! f3dHistGenPtVsYVsMultXiMinus) { |
| 491 | f3dHistGenPtVsYVsMultXiMinus = new TH3F( "f3dHistGenPtVsYVsMultXiMinus", "Pt_{#Xi} Vs Y_{#Xi} Vs Multiplicity; Pt_{cascade} (GeV/c); Y_{#Xi} ; Mult", lCustomNBins, 0., lCustomPtUpperLimit, 48, -1.2,1.2,lCustomNBinsMultiplicity,0,lCustomNBinsMultiplicity); |
| 492 | fListHist->Add(f3dHistGenPtVsYVsMultXiMinus); |
| 493 | } |
| 494 | if(! f3dHistGenPtVsYVsMultXiPlus) { |
| 495 | f3dHistGenPtVsYVsMultXiPlus = new TH3F( "f3dHistGenPtVsYVsMultXiPlus", "Pt_{#Xi} Vs Y_{#Xi} Vs Multiplicity; Pt_{cascade} (GeV/c); Y_{#Xi} ; Mult", lCustomNBins, 0., lCustomPtUpperLimit, 48, -1.2,1.2,lCustomNBinsMultiplicity,0,lCustomNBinsMultiplicity); |
| 496 | fListHist->Add(f3dHistGenPtVsYVsMultXiPlus); |
| 497 | } |
| 498 | //--- 3D Histo (Pt, Y, Multiplicity) for generated OmegaMinus/Plus |
| 499 | |
| 500 | if(! f3dHistGenPtVsYVsMultOmegaMinus) { |
| 501 | f3dHistGenPtVsYVsMultOmegaMinus = new TH3F( "f3dHistGenPtVsYVsMultOmegaMinus", "Pt_{#Omega} Vs Y_{#Omega} Vs Multiplicity; Pt_{cascade} (GeV/c); Y_{#Omega} ; Mult", lCustomNBins, 0., lCustomPtUpperLimit, 48, -1.2,1.2,lCustomNBinsMultiplicity,0,lCustomNBinsMultiplicity); |
| 502 | fListHist->Add(f3dHistGenPtVsYVsMultOmegaMinus); |
| 503 | } |
| 504 | if(! f3dHistGenPtVsYVsMultOmegaPlus) { |
| 505 | f3dHistGenPtVsYVsMultOmegaPlus = new TH3F( "f3dHistGenPtVsYVsMultOmegaPlus", "Pt_{#Omega} Vs Y_{#Omega} Vs Multiplicity; Pt_{cascade} (GeV/c); Y_{#Omega} ; Mult", lCustomNBins, 0., lCustomPtUpperLimit, 48, -1.2,1.2,lCustomNBinsMultiplicity,0,lCustomNBinsMultiplicity); |
| 506 | fListHist->Add(f3dHistGenPtVsYVsMultOmegaPlus); |
| 507 | } |
| 508 | |
| 509 | //-------------------------------------------------------------------------------------- |
| 510 | //--- 3D Histo (Pt, Y, Multiplicity) for generated XiMinus/Plus, at selected analysis evts |
| 511 | |
| 512 | if(! f3dHistGenSelectedPtVsYVsMultXiMinus) { |
| 513 | f3dHistGenSelectedPtVsYVsMultXiMinus = new TH3F( "f3dHistGenSelectedPtVsYVsMultXiMinus", "Pt_{#Xi} Vs Y_{#Xi} Vs Multiplicity; Pt_{cascade} (GeV/c); Y_{#Xi} ; Mult", lCustomNBins, 0., lCustomPtUpperLimit, 48, -1.2,1.2,lCustomNBinsMultiplicity,0,lCustomNBinsMultiplicity); |
| 514 | fListHist->Add(f3dHistGenSelectedPtVsYVsMultXiMinus); |
| 515 | } |
| 516 | if(! f3dHistGenSelectedPtVsYVsMultXiPlus) { |
| 517 | f3dHistGenSelectedPtVsYVsMultXiPlus = new TH3F( "f3dHistGenSelectedPtVsYVsMultXiPlus", "Pt_{#Xi} Vs Y_{#Xi} Vs Multiplicity; Pt_{cascade} (GeV/c); Y_{#Xi} ; Mult", lCustomNBins, 0., lCustomPtUpperLimit, 48, -1.2,1.2,lCustomNBinsMultiplicity,0,lCustomNBinsMultiplicity); |
| 518 | fListHist->Add(f3dHistGenSelectedPtVsYVsMultXiPlus); |
| 519 | } |
| 520 | //--- 3D Histo (Pt, Y, Multiplicity) for generated OmegaMinus/Plus |
| 521 | |
| 522 | if(! f3dHistGenSelectedPtVsYVsMultOmegaMinus) { |
| 523 | f3dHistGenSelectedPtVsYVsMultOmegaMinus = new TH3F( "f3dHistGenSelectedPtVsYVsMultOmegaMinus", "Pt_{#Omega} Vs Y_{#Omega} Vs Multiplicity; Pt_{cascade} (GeV/c); Y_{#Omega} ; Mult", lCustomNBins, 0., lCustomPtUpperLimit, 48, -1.2,1.2,lCustomNBinsMultiplicity,0,lCustomNBinsMultiplicity); |
| 524 | fListHist->Add(f3dHistGenSelectedPtVsYVsMultOmegaMinus); |
| 525 | } |
| 526 | if(! f3dHistGenSelectedPtVsYVsMultOmegaPlus) { |
| 527 | f3dHistGenSelectedPtVsYVsMultOmegaPlus = new TH3F( "f3dHistGenSelectedPtVsYVsMultOmegaPlus", "Pt_{#Omega} Vs Y_{#Omega} Vs Multiplicity; Pt_{cascade} (GeV/c); Y_{#Omega} ; Mult", lCustomNBins, 0., lCustomPtUpperLimit, 48, -1.2,1.2,lCustomNBinsMultiplicity,0,lCustomNBinsMultiplicity); |
| 528 | fListHist->Add(f3dHistGenSelectedPtVsYVsMultOmegaPlus); |
| 529 | } |
| 530 | |
| 531 | //---------------------------------- |
| 532 | // Primary Vertex Position Histos |
| 533 | //---------------------------------- |
| 534 | |
| 535 | if(! fHistPVx) { |
| 536 | fHistPVx = new TH1F("fHistPVx", |
| 537 | "PV x position;Nbr of Evts;x", |
| 538 | 2000, -0.5, 0.5); |
| 539 | fListHist->Add(fHistPVx); |
| 540 | } |
| 541 | if(! fHistPVy) { |
| 542 | fHistPVy = new TH1F("fHistPVy", |
| 543 | "PV y position;Nbr of Evts;y", |
| 544 | 2000, -0.5, 0.5); |
| 545 | fListHist->Add(fHistPVy); |
| 546 | } |
| 547 | if(! fHistPVz) { |
| 548 | fHistPVz = new TH1F("fHistPVz", |
| 549 | "PV z position;Nbr of Evts;z", |
| 550 | 400, -20, 20); |
| 551 | fListHist->Add(fHistPVz); |
| 552 | } |
| 553 | |
| 554 | if(! fHistPVxAnalysis) { |
| 555 | fHistPVxAnalysis = new TH1F("fHistPVxAnalysis", |
| 556 | "PV x position;Nbr of Evts;x", |
| 557 | 2000, -0.5, 0.5); |
| 558 | fListHist->Add(fHistPVxAnalysis); |
| 559 | } |
| 560 | if(! fHistPVyAnalysis) { |
| 561 | fHistPVyAnalysis = new TH1F("fHistPVyAnalysis", |
| 562 | "PV y position;Nbr of Evts;y", |
| 563 | 2000, -0.5, 0.5); |
| 564 | fListHist->Add(fHistPVyAnalysis); |
| 565 | } |
| 566 | if(! fHistPVzAnalysis) { |
| 567 | fHistPVzAnalysis = new TH1F("fHistPVzAnalysis", |
| 568 | "PV z position;Nbr of Evts;z", |
| 569 | 400, -20, 20); |
| 570 | fListHist->Add(fHistPVzAnalysis); |
| 571 | } |
| 572 | |
| 573 | //List of Histograms: Normal |
| 574 | PostData(1, fListHist); |
| 575 | |
| 576 | //TTree Object: Saved to base directory. Should cache to disk while saving. |
| 577 | //(Important to avoid excessive memory usage, particularly when merging) |
| 578 | PostData(2, fTreeCascade); |
| 579 | |
| 580 | }// end UserCreateOutputObjects |
| 581 | |
| 582 | |
| 583 | //________________________________________________________________________ |
| 584 | void AliAnalysisTaskExtractPerformanceCascade::UserExec(Option_t *) |
| 585 | { |
| 586 | // Main loop |
| 587 | // Called for each event |
| 588 | |
| 589 | AliESDEvent *lESDevent = 0x0; |
| 590 | AliMCEvent *lMCevent = 0x0; |
| 591 | AliStack *lMCstack = 0x0; |
| 592 | |
| 593 | Int_t lNumberOfV0s = -1; |
| 594 | Double_t lTrkgPrimaryVtxPos[3] = {-100.0, -100.0, -100.0}; |
| 595 | Double_t lBestPrimaryVtxPos[3] = {-100.0, -100.0, -100.0}; |
| 596 | Double_t lMagneticField = -10.; |
| 597 | |
| 598 | // Connect to the InputEvent |
| 599 | // After these lines, we should have an ESD/AOD event + the number of V0s in it. |
| 600 | |
| 601 | // Appropriate for ESD analysis! |
| 602 | |
| 603 | lESDevent = dynamic_cast<AliESDEvent*>( InputEvent() ); |
| 604 | if (!lESDevent) { |
| 605 | AliWarning("ERROR: lESDevent not available \n"); |
| 606 | return; |
| 607 | } |
| 608 | |
| 609 | /* --- Acquisition of exact event ID |
| 610 | fTreeVariableRunNumber = lESDevent->GetRunNumber(); |
| 611 | fTreeVariableEventNumber = |
| 612 | ( ( ((ULong64_t)lESDevent->GetPeriodNumber() ) << 36 ) | |
| 613 | ( ((ULong64_t)lESDevent->GetOrbitNumber () ) << 12 ) | |
| 614 | ((ULong64_t)lESDevent->GetBunchCrossNumber() ) ); |
| 615 | */ |
| 616 | lMCevent = MCEvent(); |
| 617 | if (!lMCevent) { |
| 618 | Printf("ERROR: Could not retrieve MC event \n"); |
| 619 | cout << "Name of the file with pb :" << fInputHandler->GetTree()->GetCurrentFile()->GetName() << endl; |
| 620 | return; |
| 621 | } |
| 622 | |
| 623 | lMCstack = lMCevent->Stack(); |
| 624 | if (!lMCstack) { |
| 625 | Printf("ERROR: Could not retrieve MC stack \n"); |
| 626 | cout << "Name of the file with pb :" << fInputHandler->GetTree()->GetCurrentFile()->GetName() << endl; |
| 627 | return; |
| 628 | } |
| 629 | TArrayF mcPrimaryVtx; |
| 630 | AliGenEventHeader* mcHeader=lMCevent->GenEventHeader(); |
| 631 | if(!mcHeader) return; |
| 632 | mcHeader->PrimaryVertex(mcPrimaryVtx); |
| 633 | |
| 634 | //------------------------------------------------ |
| 635 | // Multiplicity Information Acquistion |
| 636 | //------------------------------------------------ |
| 637 | |
| 638 | //REVISED multiplicity estimator after 'multiplicity day' (2011) |
| 639 | Int_t lMultiplicity = -100; |
| 640 | |
| 641 | //testing purposes |
| 642 | if(fkIsNuclear == kFALSE) lMultiplicity = fESDtrackCuts->GetReferenceMultiplicity(lESDevent, AliESDtrackCuts::kTrackletsITSTPC,0.5); |
| 643 | |
| 644 | //---> If this is a nuclear collision, then go nuclear on "multiplicity" variable... |
| 645 | //---> Warning: Experimental |
| 646 | if(fkIsNuclear == kTRUE){ |
| 647 | AliCentrality* centrality; |
| 648 | centrality = lESDevent->GetCentrality(); |
| 649 | lMultiplicity = ( ( Int_t ) ( centrality->GetCentralityPercentile( "V0M" ) ) ); |
| 650 | if (centrality->GetQuality()>1) { |
| 651 | PostData(1, fListHist); |
| 652 | PostData(2, fTreeCascade); |
| 653 | return; |
| 654 | } |
| 655 | } |
| 656 | |
| 657 | //Set variable for filling tree afterwards! |
| 658 | //---> pp case......: GetReferenceMultiplicity |
| 659 | //---> Pb-Pb case...: Centrality by V0M |
| 660 | |
| 661 | fTreeCascVarMultiplicity = lMultiplicity; |
| 662 | |
| 663 | fHistV0MultiplicityBeforeTrigSel->Fill ( lESDevent->GetNumberOfV0s() ); |
| 664 | fHistMultiplicityBeforeTrigSel->Fill ( lMultiplicity ); |
| 665 | |
| 666 | //------------------------------------------------ |
| 667 | // MC Information Acquistion |
| 668 | //------------------------------------------------ |
| 669 | |
| 670 | Int_t iNumberOfPrimaries = -1; |
| 671 | iNumberOfPrimaries = lMCstack->GetNprimary(); |
| 672 | if(iNumberOfPrimaries < 1) return; |
| 673 | |
| 674 | //------------------------------------------------ |
| 675 | // Variable Definition |
| 676 | //------------------------------------------------ |
| 677 | |
| 678 | Int_t lNbMCPrimary = 0; |
| 679 | |
| 76029adc |
680 | Double_t lPtCurrentPart = 0; |
| 681 | |
| 682 | //Int_t lComeFromSigma = 0; |
| 683 | |
| 684 | // current mc particle 's mother |
| 685 | //Int_t iCurrentMother = 0; |
| 686 | lNbMCPrimary = lMCstack->GetNprimary(); |
| 687 | |
| 688 | //------------------------------------------------ |
| 689 | // Pre-Physics Selection |
| 690 | //------------------------------------------------ |
| 691 | |
| 692 | //----- Loop on primary Xi, Omega -------------------------------------------------------------- |
| 693 | for (Int_t iCurrentLabelStack = 0; iCurrentLabelStack < lNbMCPrimary; iCurrentLabelStack++) |
| 694 | {// This is the begining of the loop on primaries |
| 695 | |
| 696 | TParticle* lCurrentParticlePrimary = 0x0; |
| 697 | lCurrentParticlePrimary = lMCstack->Particle( iCurrentLabelStack ); |
| 698 | if(!lCurrentParticlePrimary){ |
| 699 | Printf("Cascade loop %d - MC TParticle pointer to current stack particle = 0x0 ! Skip ...\n", iCurrentLabelStack ); |
| 700 | continue; |
| 701 | } |
| 702 | if ( TMath::Abs(lCurrentParticlePrimary->GetPdgCode()) == 3312 || TMath::Abs(lCurrentParticlePrimary->GetPdgCode()) == 3334 ) { |
| 703 | Double_t lRapXiMCPrimary = -100; |
| 704 | if( (lCurrentParticlePrimary->Energy() - lCurrentParticlePrimary->Pz() +1.e-13) != 0 ) { |
| 705 | if ( (lCurrentParticlePrimary->Energy() + lCurrentParticlePrimary->Pz()) / (lCurrentParticlePrimary->Energy() - lCurrentParticlePrimary->Pz() +1.e-13) !=0 ){ |
| 706 | lRapXiMCPrimary = 0.5*TMath::Log( (lCurrentParticlePrimary->Energy() + lCurrentParticlePrimary->Pz()) / (lCurrentParticlePrimary->Energy() - lCurrentParticlePrimary->Pz() +1.e-13) ); |
| 707 | } |
| 708 | } |
| 709 | |
| 710 | //================================================================================= |
| 711 | // Xi Histograms |
| 712 | if( lCurrentParticlePrimary->GetPdgCode() == 3312 ){ |
| 713 | lPtCurrentPart = lCurrentParticlePrimary->Pt(); |
| 714 | f3dHistGenPtVsYVsMultXiMinus->Fill(lPtCurrentPart, lRapXiMCPrimary, lMultiplicity); |
| 715 | } |
| 716 | if( lCurrentParticlePrimary->GetPdgCode() == -3312 ){ |
| 717 | lPtCurrentPart = lCurrentParticlePrimary->Pt(); |
| 718 | f3dHistGenPtVsYVsMultXiPlus->Fill(lPtCurrentPart, lRapXiMCPrimary, lMultiplicity); |
| 719 | } |
| 720 | // Omega Histograms |
| 721 | if( lCurrentParticlePrimary->GetPdgCode() == 3334 ){ |
| 722 | lPtCurrentPart = lCurrentParticlePrimary->Pt(); |
| 723 | f3dHistGenPtVsYVsMultOmegaMinus->Fill(lPtCurrentPart, lRapXiMCPrimary, lMultiplicity); |
| 724 | } |
| 725 | if( lCurrentParticlePrimary->GetPdgCode() == -3334 ){ |
| 726 | lPtCurrentPart = lCurrentParticlePrimary->Pt(); |
| 727 | f3dHistGenPtVsYVsMultOmegaPlus->Fill(lPtCurrentPart, lRapXiMCPrimary, lMultiplicity); |
| 728 | } |
| 729 | } |
| 730 | } |
| 731 | //----- End Loop on primary Xi, Omega ---------------------------------------------------------- |
| 732 | |
| 733 | // ---> Set Variables to Zero again |
| 734 | // ---> Variable Definition |
| 735 | |
| 76029adc |
736 | lPtCurrentPart = 0; |
| 737 | |
| 738 | //------------------------------------------------ |
| 739 | // Physics Selection |
| 740 | //------------------------------------------------ |
| 741 | |
| 742 | UInt_t maskIsSelected = ((AliInputEventHandler*)(AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler()))->IsEventSelected(); |
| 743 | Bool_t isSelected = 0; |
| 744 | isSelected = (maskIsSelected & AliVEvent::kMB) == AliVEvent::kMB; |
| 745 | |
| 2213f6fc |
746 | //pA triggering: CINT7 |
| 747 | if( fkSwitchINT7 ) isSelected = (maskIsSelected & AliVEvent::kINT7) == AliVEvent::kINT7; |
| 748 | |
| 76029adc |
749 | //Standard Min-Bias Selection |
| 750 | if ( ! isSelected ) { |
| 751 | PostData(1, fListHist); |
| 752 | PostData(2, fTreeCascade); |
| 753 | return; |
| 754 | } |
| 755 | |
| d8841e95 |
756 | //------------------------------------------------ |
| 757 | // Rerun cascade vertexer! |
| 758 | //------------------------------------------------ |
| 2213f6fc |
759 | /* |
| d8841e95 |
760 | lESDevent->ResetCascades(); |
| 761 | lESDevent->ResetV0s(); |
| 762 | |
| 763 | AliV0vertexer lV0vtxer; |
| 764 | AliCascadeVertexer lCascVtxer; |
| 765 | |
| 766 | lV0vtxer.SetDefaultCuts(fV0Sels); |
| 767 | lCascVtxer.SetDefaultCuts(fCascSels); |
| 768 | |
| 769 | lV0vtxer.Tracks2V0vertices(lESDevent); |
| 770 | lCascVtxer.V0sTracks2CascadeVertices(lESDevent); |
| 2213f6fc |
771 | */ |
| 76029adc |
772 | //------------------------------------------------ |
| 773 | // After Trigger Selection |
| 774 | //------------------------------------------------ |
| 775 | |
| 776 | lNumberOfV0s = lESDevent->GetNumberOfV0s(); |
| 777 | |
| 778 | //Set variable for filling tree afterwards! |
| 779 | fHistV0MultiplicityForTrigEvt->Fill(lNumberOfV0s); |
| 780 | fHistMultiplicityForTrigEvt->Fill ( lMultiplicity ); |
| 781 | |
| 782 | //------------------------------------------------ |
| 783 | // Getting: Primary Vertex + MagField Info |
| 784 | //------------------------------------------------ |
| 785 | |
| 786 | const AliESDVertex *lPrimaryTrackingESDVtx = lESDevent->GetPrimaryVertexTracks(); |
| 787 | // get the vtx stored in ESD found with tracks |
| 788 | lPrimaryTrackingESDVtx->GetXYZ( lTrkgPrimaryVtxPos ); |
| 789 | |
| 790 | const AliESDVertex *lPrimaryBestESDVtx = lESDevent->GetPrimaryVertex(); |
| 791 | // get the best primary vertex available for the event |
| 792 | // As done in AliCascadeVertexer, we keep the one which is the best one available. |
| 793 | // between : Tracking vertex > SPD vertex > TPC vertex > default SPD vertex |
| 794 | // This one will be used for next calculations (DCA essentially) |
| 795 | lPrimaryBestESDVtx->GetXYZ( lBestPrimaryVtxPos ); |
| 796 | |
| 797 | Double_t lPrimaryVtxPosition[3]; |
| 798 | const AliVVertex *primaryVtx = lESDevent->GetPrimaryVertex(); |
| 799 | lPrimaryVtxPosition[0] = primaryVtx->GetX(); |
| 800 | lPrimaryVtxPosition[1] = primaryVtx->GetY(); |
| 801 | lPrimaryVtxPosition[2] = primaryVtx->GetZ(); |
| 802 | fHistPVx->Fill( lPrimaryVtxPosition[0] ); |
| 803 | fHistPVy->Fill( lPrimaryVtxPosition[1] ); |
| 804 | fHistPVz->Fill( lPrimaryVtxPosition[2] ); |
| 805 | |
| 806 | //------------------------------------------------ |
| 807 | // Primary Vertex Z position: SKIP |
| 808 | //------------------------------------------------ |
| 809 | |
| 810 | if(TMath::Abs(lBestPrimaryVtxPos[2]) > 10.0 ) { |
| 811 | AliWarning("Pb / | Z position of Best Prim Vtx | > 10.0 cm ... return !"); |
| 812 | PostData(1, fListHist); |
| 813 | PostData(2, fTreeCascade); |
| 814 | return; |
| 815 | } |
| 816 | |
| 817 | lMagneticField = lESDevent->GetMagneticField( ); |
| 818 | fHistV0MultiplicityForSelEvt ->Fill( lNumberOfV0s ); |
| 819 | fHistMultiplicity->Fill(lMultiplicity); |
| 820 | |
| 821 | //------------------------------------------------ |
| 822 | // SKIP: Events with well-established PVtx |
| 823 | //------------------------------------------------ |
| 824 | |
| 825 | const AliESDVertex *lPrimaryTrackingESDVtxCheck = lESDevent->GetPrimaryVertexTracks(); |
| 826 | const AliESDVertex *lPrimarySPDVtx = lESDevent->GetPrimaryVertexSPD(); |
| 827 | if (!lPrimarySPDVtx->GetStatus() && !lPrimaryTrackingESDVtxCheck->GetStatus() ){ |
| 828 | AliWarning("Pb / No SPD prim. vertex nor prim. Tracking vertex ... return !"); |
| 829 | PostData(1, fListHist); |
| 830 | PostData(2, fTreeCascade); |
| 831 | return; |
| 832 | } |
| 833 | fHistV0MultiplicityForSelEvtNoTPCOnly ->Fill( lNumberOfV0s ); |
| 834 | fHistMultiplicityNoTPCOnly->Fill(lMultiplicity); |
| 835 | |
| 836 | //------------------------------------------------ |
| 837 | // Pileup Rejection Studies |
| 838 | //------------------------------------------------ |
| 839 | |
| 840 | // FIXME : quality selection regarding pile-up rejection |
| 841 | if(lESDevent->IsPileupFromSPD() && !fkIsNuclear ){// minContributors=3, minZdist=0.8, nSigmaZdist=3., nSigmaDiamXY=2., nSigmaDiamZ=5. -> see http://alisoft.cern.ch/viewvc/trunk/STEER/AliESDEvent.h?root=AliRoot&r1=41914&r2=42199&pathrev=42199 |
| 842 | AliWarning("Pb / This is tagged as Pileup from SPD... return !"); |
| 843 | PostData(1, fListHist); |
| 844 | PostData(2, fTreeCascade); |
| 845 | return; |
| 846 | } |
| 847 | fHistV0MultiplicityForSelEvtNoTPCOnlyNoPileup ->Fill( lNumberOfV0s ); |
| 848 | fHistMultiplicityNoTPCOnlyNoPileup->Fill(lMultiplicity); |
| 849 | |
| 850 | //Do control histograms without the IsFromVertexerZ events, but consider them in analysis... |
| 851 | if( ! (lESDevent->GetPrimaryVertex()->IsFromVertexerZ() ) ){ |
| 852 | fHistPVxAnalysis->Fill( lPrimaryVtxPosition[0] ); |
| 853 | fHistPVyAnalysis->Fill( lPrimaryVtxPosition[1] ); |
| 854 | fHistPVzAnalysis->Fill( lPrimaryVtxPosition[2] ); |
| 855 | } |
| 856 | |
| 857 | //------------------------------------------------ |
| 858 | // stack loop starts here |
| 859 | //------------------------------------------------ |
| 860 | |
| 861 | //----- Loop on primary Xi, Omega -------------------------------------------------------------- |
| 862 | for (Int_t iCurrentLabelStack = 0; iCurrentLabelStack < lNbMCPrimary; iCurrentLabelStack++) |
| 863 | {// This is the begining of the loop on primaries |
| 864 | |
| 865 | TParticle* lCurrentParticlePrimary = 0x0; |
| 866 | lCurrentParticlePrimary = lMCstack->Particle( iCurrentLabelStack ); |
| 867 | if(!lCurrentParticlePrimary){ |
| 868 | Printf("Cascade loop %d - MC TParticle pointer to current stack particle = 0x0 ! Skip ...\n", iCurrentLabelStack ); |
| 869 | continue; |
| 870 | } |
| 871 | if ( TMath::Abs(lCurrentParticlePrimary->GetPdgCode()) == 3312 || TMath::Abs(lCurrentParticlePrimary->GetPdgCode()) == 3334 ) { |
| 872 | Double_t lRapXiMCPrimary = -100; |
| 873 | if( (lCurrentParticlePrimary->Energy() - lCurrentParticlePrimary->Pz() +1.e-13) != 0 ) { |
| 874 | if ( (lCurrentParticlePrimary->Energy() + lCurrentParticlePrimary->Pz()) / (lCurrentParticlePrimary->Energy() - lCurrentParticlePrimary->Pz() +1.e-13) !=0 ){ |
| 875 | lRapXiMCPrimary = 0.5*TMath::Log( (lCurrentParticlePrimary->Energy() + lCurrentParticlePrimary->Pz()) / (lCurrentParticlePrimary->Energy() - lCurrentParticlePrimary->Pz() +1.e-13) ); |
| 876 | } |
| 877 | } |
| 878 | |
| 879 | //================================================================================= |
| 880 | // Xi Histograms |
| 881 | if( lCurrentParticlePrimary->GetPdgCode() == 3312 ){ |
| 882 | lPtCurrentPart = lCurrentParticlePrimary->Pt(); |
| 883 | f3dHistGenSelectedPtVsYVsMultXiMinus->Fill(lPtCurrentPart, lRapXiMCPrimary, lMultiplicity); |
| 884 | } |
| 885 | if( lCurrentParticlePrimary->GetPdgCode() == -3312 ){ |
| 886 | lPtCurrentPart = lCurrentParticlePrimary->Pt(); |
| 887 | f3dHistGenSelectedPtVsYVsMultXiPlus->Fill(lPtCurrentPart, lRapXiMCPrimary, lMultiplicity); |
| 888 | } |
| 889 | // Omega Histograms |
| 890 | if( lCurrentParticlePrimary->GetPdgCode() == 3334 ){ |
| 891 | lPtCurrentPart = lCurrentParticlePrimary->Pt(); |
| 892 | f3dHistGenSelectedPtVsYVsMultOmegaMinus->Fill(lPtCurrentPart, lRapXiMCPrimary, lMultiplicity); |
| 893 | } |
| 894 | if( lCurrentParticlePrimary->GetPdgCode() == -3334 ){ |
| 895 | lPtCurrentPart = lCurrentParticlePrimary->Pt(); |
| 896 | f3dHistGenSelectedPtVsYVsMultOmegaPlus->Fill(lPtCurrentPart, lRapXiMCPrimary, lMultiplicity); |
| 897 | } |
| 898 | } |
| 899 | } |
| 900 | //----- End Loop on primary Xi, Omega ---------------------------------------------------------- |
| 901 | |
| 902 | //------------------------------------------------ |
| 903 | // MAIN CASCADE LOOP STARTS HERE |
| 904 | //------------------------------------------------ |
| 905 | // Code Credit: Antonin Maire (thanks^100) |
| 906 | // ---> This is an adaptation |
| 907 | |
| 908 | Long_t ncascades = 0; |
| 909 | ncascades = lESDevent->GetNumberOfCascades(); |
| 910 | |
| 911 | |
| 912 | for (Int_t iXi = 0; iXi < ncascades; iXi++){ |
| 913 | //------------------------------------------------ |
| 914 | // Initializations |
| 915 | //------------------------------------------------ |
| 916 | //Double_t lTrkgPrimaryVtxRadius3D = -500.0; |
| 917 | //Double_t lBestPrimaryVtxRadius3D = -500.0; |
| 918 | |
| 919 | // - 1st part of initialisation : variables needed to store AliESDCascade data members |
| 920 | Double_t lEffMassXi = 0. ; |
| 921 | //Double_t lChi2Xi = -1. ; |
| 922 | Double_t lDcaXiDaughters = -1. ; |
| 923 | Double_t lXiCosineOfPointingAngle = -1. ; |
| 924 | Double_t lPosXi[3] = { -1000.0, -1000.0, -1000.0 }; |
| 925 | Double_t lXiRadius = -1000. ; |
| 926 | |
| 927 | // - 2nd part of initialisation : Nbr of clusters within TPC for the 3 daughter cascade tracks |
| 928 | Int_t lPosTPCClusters = -1; // For ESD only ...//FIXME : wait for availability in AOD |
| 929 | Int_t lNegTPCClusters = -1; // For ESD only ... |
| 930 | Int_t lBachTPCClusters = -1; // For ESD only ... |
| 931 | |
| 932 | // - 3rd part of initialisation : about V0 part in cascades |
| 933 | Double_t lInvMassLambdaAsCascDghter = 0.; |
| 934 | //Double_t lV0Chi2Xi = -1. ; |
| 935 | Double_t lDcaV0DaughtersXi = -1.; |
| 936 | |
| 937 | Double_t lDcaBachToPrimVertexXi = -1., lDcaV0ToPrimVertexXi = -1.; |
| 938 | Double_t lDcaPosToPrimVertexXi = -1.; |
| 939 | Double_t lDcaNegToPrimVertexXi = -1.; |
| 940 | Double_t lV0CosineOfPointingAngleXi = -1. ; |
| 941 | Double_t lPosV0Xi[3] = { -1000. , -1000., -1000. }; // Position of VO coming from cascade |
| 942 | Double_t lV0RadiusXi = -1000.0; |
| 943 | Double_t lV0quality = 0.; |
| 944 | |
| 945 | // - 4th part of initialisation : Effective masses |
| 946 | Double_t lInvMassXiMinus = 0.; |
| 947 | Double_t lInvMassXiPlus = 0.; |
| 948 | Double_t lInvMassOmegaMinus = 0.; |
| 949 | Double_t lInvMassOmegaPlus = 0.; |
| 950 | |
| 951 | // - 6th part of initialisation : extra info for QA |
| 952 | Double_t lXiMomX = 0. , lXiMomY = 0., lXiMomZ = 0.; |
| 953 | Double_t lXiTransvMom = 0. ; |
| 954 | Double_t lXiTransvMomMC= 0. ; |
| 955 | Double_t lXiTotMom = 0. ; |
| 956 | |
| 957 | Double_t lBachMomX = 0., lBachMomY = 0., lBachMomZ = 0.; |
| 958 | //Double_t lBachTransvMom = 0.; |
| 959 | //Double_t lBachTotMom = 0.; |
| 960 | |
| 961 | fTreeCascVarNegNSigmaPion = -100; |
| 962 | fTreeCascVarNegNSigmaProton = -100; |
| 963 | fTreeCascVarPosNSigmaPion = -100; |
| 964 | fTreeCascVarPosNSigmaProton = -100; |
| 965 | fTreeCascVarBachNSigmaPion = -100; |
| 966 | fTreeCascVarBachNSigmaKaon = -100; |
| 967 | |
| 968 | Short_t lChargeXi = -2; |
| 969 | //Double_t lV0toXiCosineOfPointingAngle = 0. ; |
| 970 | |
| 971 | Double_t lRapXi = -20.0, lRapOmega = -20.0, lRapMC = -20.0; // lEta = -20.0, lTheta = 360., lPhi = 720. ; |
| 972 | //Double_t lAlphaXi = -200., lPtArmXi = -200.0; |
| 973 | |
| 974 | // ------------------------------------- |
| 975 | // II.ESD - Calculation Part dedicated to Xi vertices (ESD) |
| 976 | |
| 977 | AliESDcascade *xi = lESDevent->GetCascade(iXi); |
| 978 | if (!xi) continue; |
| 979 | |
| 980 | |
| 981 | // - II.Step 1 : around primary vertex |
| 982 | //------------- |
| 983 | //lTrkgPrimaryVtxRadius3D = TMath::Sqrt( lTrkgPrimaryVtxPos[0] * lTrkgPrimaryVtxPos[0] + |
| 984 | // lTrkgPrimaryVtxPos[1] * lTrkgPrimaryVtxPos[1] + |
| 985 | // lTrkgPrimaryVtxPos[2] * lTrkgPrimaryVtxPos[2] ); |
| 986 | |
| 987 | //lBestPrimaryVtxRadius3D = TMath::Sqrt( lBestPrimaryVtxPos[0] * lBestPrimaryVtxPos[0] + |
| 988 | // lBestPrimaryVtxPos[1] * lBestPrimaryVtxPos[1] + |
| 989 | // lBestPrimaryVtxPos[2] * lBestPrimaryVtxPos[2] ); |
| 990 | |
| 991 | // - II.Step 2 : Assigning the necessary variables for specific AliESDcascade data members (ESD) |
| 992 | //------------- |
| 993 | lV0quality = 0.; |
| 994 | xi->ChangeMassHypothesis(lV0quality , 3312); // default working hypothesis : cascade = Xi- decay |
| 995 | |
| 996 | lEffMassXi = xi->GetEffMassXi(); |
| 997 | //lChi2Xi = xi->GetChi2Xi(); |
| 998 | lDcaXiDaughters = xi->GetDcaXiDaughters(); |
| 999 | lXiCosineOfPointingAngle = xi->GetCascadeCosineOfPointingAngle( lBestPrimaryVtxPos[0], |
| 1000 | lBestPrimaryVtxPos[1], |
| 1001 | lBestPrimaryVtxPos[2] ); |
| 1002 | // Take care : the best available vertex should be used (like in AliCascadeVertexer) |
| 1003 | |
| 1004 | xi->GetXYZcascade( lPosXi[0], lPosXi[1], lPosXi[2] ); |
| 1005 | lXiRadius = TMath::Sqrt( lPosXi[0]*lPosXi[0] + lPosXi[1]*lPosXi[1] ); |
| 1006 | |
| 1007 | // - II.Step 3 : around the tracks : Bach + V0 (ESD) |
| 1008 | // ~ Necessary variables for ESDcascade data members coming from the ESDv0 part (inheritance) |
| 1009 | //------------- |
| 1010 | |
| 1011 | UInt_t lIdxPosXi = (UInt_t) TMath::Abs( xi->GetPindex() ); |
| 1012 | UInt_t lIdxNegXi = (UInt_t) TMath::Abs( xi->GetNindex() ); |
| 1013 | UInt_t lBachIdx = (UInt_t) TMath::Abs( xi->GetBindex() ); |
| 1014 | // Care track label can be negative in MC production (linked with the track quality) |
| 1015 | // However = normally, not the case for track index ... |
| 1016 | |
| 1017 | // FIXME : rejection of a double use of a daughter track (nothing but just a crosscheck of what is done in the cascade vertexer) |
| 1018 | if(lBachIdx == lIdxNegXi) { |
| 1019 | AliWarning("Pb / Idx(Bach. track) = Idx(Neg. track) ... continue!"); continue; |
| 1020 | } |
| 1021 | if(lBachIdx == lIdxPosXi) { |
| 1022 | AliWarning("Pb / Idx(Bach. track) = Idx(Pos. track) ... continue!"); continue; |
| 1023 | } |
| 1024 | |
| 1025 | AliESDtrack *pTrackXi = lESDevent->GetTrack( lIdxPosXi ); |
| 1026 | AliESDtrack *nTrackXi = lESDevent->GetTrack( lIdxNegXi ); |
| 1027 | AliESDtrack *bachTrackXi = lESDevent->GetTrack( lBachIdx ); |
| 1028 | |
| 1029 | if (!pTrackXi || !nTrackXi || !bachTrackXi ) { |
| 1030 | AliWarning("ERROR: Could not retrieve one of the 3 ESD daughter tracks of the cascade ..."); |
| 1031 | continue; |
| 1032 | } |
| 1033 | |
| 1034 | fTreeCascVarPosEta = pTrackXi->Eta(); |
| 1035 | fTreeCascVarNegEta = nTrackXi->Eta(); |
| 1036 | fTreeCascVarBachEta = bachTrackXi->Eta(); |
| 1037 | |
| 1038 | //------------------------------------------------ |
| 1039 | // TPC dEdx information |
| 1040 | //------------------------------------------------ |
| 1041 | fTreeCascVarNegNSigmaPion = fPIDResponse->NumberOfSigmasTPC( nTrackXi, AliPID::kPion ); |
| 1042 | fTreeCascVarNegNSigmaProton = fPIDResponse->NumberOfSigmasTPC( nTrackXi, AliPID::kProton ); |
| 1043 | fTreeCascVarPosNSigmaPion = fPIDResponse->NumberOfSigmasTPC( pTrackXi, AliPID::kPion ); |
| 1044 | fTreeCascVarPosNSigmaProton = fPIDResponse->NumberOfSigmasTPC( pTrackXi, AliPID::kProton ); |
| 1045 | fTreeCascVarBachNSigmaPion = fPIDResponse->NumberOfSigmasTPC( bachTrackXi, AliPID::kPion ); |
| 1046 | fTreeCascVarBachNSigmaKaon = fPIDResponse->NumberOfSigmasTPC( bachTrackXi, AliPID::kKaon ); |
| 1047 | |
| 1048 | //------------------------------------------------ |
| 1049 | // TPC Number of clusters info |
| 1050 | // --- modified to save the smallest number |
| 1051 | // --- of TPC clusters for the 3 tracks |
| 1052 | //------------------------------------------------ |
| 1053 | |
| 1054 | lPosTPCClusters = pTrackXi->GetTPCNcls(); |
| 1055 | lNegTPCClusters = nTrackXi->GetTPCNcls(); |
| 1056 | lBachTPCClusters = bachTrackXi->GetTPCNcls(); |
| 1057 | |
| 1058 | // 1 - Poor quality related to TPCrefit |
| 1059 | ULong_t pStatus = pTrackXi->GetStatus(); |
| 1060 | ULong_t nStatus = nTrackXi->GetStatus(); |
| 1061 | ULong_t bachStatus = bachTrackXi->GetStatus(); |
| 1062 | if ((pStatus&AliESDtrack::kTPCrefit) == 0) { AliWarning("Pb / V0 Pos. track has no TPCrefit ... continue!"); continue; } |
| 1063 | if ((nStatus&AliESDtrack::kTPCrefit) == 0) { AliWarning("Pb / V0 Neg. track has no TPCrefit ... continue!"); continue; } |
| 1064 | if ((bachStatus&AliESDtrack::kTPCrefit) == 0) { AliWarning("Pb / Bach. track has no TPCrefit ... continue!"); continue; } |
| 1065 | // 2 - Poor quality related to TPC clusters: lowest cut of 70 clusters |
| 1066 | if(lPosTPCClusters < 70) { AliWarning("Pb / V0 Pos. track has less than 70 TPC clusters ... continue!"); continue; } |
| 1067 | if(lNegTPCClusters < 70) { AliWarning("Pb / V0 Neg. track has less than 70 TPC clusters ... continue!"); continue; } |
| 1068 | if(lBachTPCClusters < 70) { AliWarning("Pb / Bach. track has less than 70 TPC clusters ... continue!"); continue; } |
| 1069 | Int_t leastnumberofclusters = 1000; |
| 1070 | if( lPosTPCClusters < leastnumberofclusters ) leastnumberofclusters = lPosTPCClusters; |
| 1071 | if( lNegTPCClusters < leastnumberofclusters ) leastnumberofclusters = lNegTPCClusters; |
| 1072 | if( lBachTPCClusters < leastnumberofclusters ) leastnumberofclusters = lBachTPCClusters; |
| 1073 | |
| 1074 | lInvMassLambdaAsCascDghter = xi->GetEffMass(); |
| 1075 | // This value shouldn't change, whatever the working hyp. is : Xi-, Xi+, Omega-, Omega+ |
| 1076 | lDcaV0DaughtersXi = xi->GetDcaV0Daughters(); |
| 1077 | //lV0Chi2Xi = xi->GetChi2V0(); |
| 1078 | |
| 1079 | lV0CosineOfPointingAngleXi = xi->GetV0CosineOfPointingAngle( lBestPrimaryVtxPos[0], |
| 1080 | lBestPrimaryVtxPos[1], |
| 1081 | lBestPrimaryVtxPos[2] ); |
| 1082 | |
| 1083 | lDcaV0ToPrimVertexXi = xi->GetD( lBestPrimaryVtxPos[0], |
| 1084 | lBestPrimaryVtxPos[1], |
| 1085 | lBestPrimaryVtxPos[2] ); |
| 1086 | |
| 1087 | lDcaBachToPrimVertexXi = TMath::Abs( bachTrackXi->GetD( lBestPrimaryVtxPos[0], |
| 1088 | lBestPrimaryVtxPos[1], |
| 1089 | lMagneticField ) ); |
| 1090 | // Note : AliExternalTrackParam::GetD returns an algebraic value ... |
| 1091 | |
| 1092 | xi->GetXYZ( lPosV0Xi[0], lPosV0Xi[1], lPosV0Xi[2] ); |
| 1093 | lV0RadiusXi = TMath::Sqrt( lPosV0Xi[0]*lPosV0Xi[0] + lPosV0Xi[1]*lPosV0Xi[1] ); |
| 1094 | |
| 1095 | lDcaPosToPrimVertexXi = TMath::Abs( pTrackXi ->GetD( lBestPrimaryVtxPos[0], |
| 1096 | lBestPrimaryVtxPos[1], |
| 1097 | lMagneticField ) ); |
| 1098 | |
| 1099 | lDcaNegToPrimVertexXi = TMath::Abs( nTrackXi ->GetD( lBestPrimaryVtxPos[0], |
| 1100 | lBestPrimaryVtxPos[1], |
| 1101 | lMagneticField ) ); |
| 1102 | |
| 1103 | // - II.Step 4 : around effective masses (ESD) |
| 1104 | // ~ change mass hypotheses to cover all the possibilities : Xi-/+, Omega -/+ |
| 1105 | |
| 1106 | if( bachTrackXi->Charge() < 0 ) { |
| 1107 | lV0quality = 0.; |
| 1108 | xi->ChangeMassHypothesis(lV0quality , 3312); |
| 1109 | // Calculate the effective mass of the Xi- candidate. |
| 1110 | // pdg code 3312 = Xi- |
| 1111 | lInvMassXiMinus = xi->GetEffMassXi(); |
| 1112 | |
| 1113 | lV0quality = 0.; |
| 1114 | xi->ChangeMassHypothesis(lV0quality , 3334); |
| 1115 | // Calculate the effective mass of the Xi- candidate. |
| 1116 | // pdg code 3334 = Omega- |
| 1117 | lInvMassOmegaMinus = xi->GetEffMassXi(); |
| 1118 | |
| 1119 | lV0quality = 0.; |
| 1120 | xi->ChangeMassHypothesis(lV0quality , 3312); // Back to default hyp. |
| 1121 | }// end if negative bachelor |
| 1122 | |
| 1123 | |
| 1124 | if( bachTrackXi->Charge() > 0 ){ |
| 1125 | lV0quality = 0.; |
| 1126 | xi->ChangeMassHypothesis(lV0quality , -3312); |
| 1127 | // Calculate the effective mass of the Xi+ candidate. |
| 1128 | // pdg code -3312 = Xi+ |
| 1129 | lInvMassXiPlus = xi->GetEffMassXi(); |
| 1130 | |
| 1131 | lV0quality = 0.; |
| 1132 | xi->ChangeMassHypothesis(lV0quality , -3334); |
| 1133 | // Calculate the effective mass of the Xi+ candidate. |
| 1134 | // pdg code -3334 = Omega+ |
| 1135 | lInvMassOmegaPlus = xi->GetEffMassXi(); |
| 1136 | |
| 1137 | lV0quality = 0.; |
| 1138 | xi->ChangeMassHypothesis(lV0quality , -3312); // Back to "default" hyp. |
| 1139 | }// end if positive bachelor |
| 1140 | // - II.Step 6 : extra info for QA (ESD) |
| 1141 | // miscellaneous pieces of info that may help regarding data quality assessment. |
| 1142 | //------------- |
| 1143 | |
| 1144 | xi->GetPxPyPz( lXiMomX, lXiMomY, lXiMomZ ); |
| 1145 | lXiTransvMom = TMath::Sqrt( lXiMomX*lXiMomX + lXiMomY*lXiMomY ); |
| 1146 | lXiTotMom = TMath::Sqrt( lXiMomX*lXiMomX + lXiMomY*lXiMomY + lXiMomZ*lXiMomZ ); |
| 1147 | |
| 1148 | xi->GetBPxPyPz( lBachMomX, lBachMomY, lBachMomZ ); |
| 1149 | //lBachTransvMom = TMath::Sqrt( lBachMomX*lBachMomX + lBachMomY*lBachMomY ); |
| 1150 | //lBachTotMom = TMath::Sqrt( lBachMomX*lBachMomX + lBachMomY*lBachMomY + lBachMomZ*lBachMomZ ); |
| 1151 | |
| 1152 | lChargeXi = xi->Charge(); |
| 1153 | |
| 1154 | //lV0toXiCosineOfPointingAngle = xi->GetV0CosineOfPointingAngle( lPosXi[0], lPosXi[1], lPosXi[2] ); |
| 1155 | |
| 1156 | lRapXi = xi->RapXi(); |
| 1157 | lRapOmega = xi->RapOmega(); |
| 1158 | //lEta = xi->Eta(); |
| 1159 | //lTheta = xi->Theta() *180.0/TMath::Pi(); |
| 1160 | //lPhi = xi->Phi() *180.0/TMath::Pi(); |
| 1161 | //lAlphaXi = xi->AlphaXi(); |
| 1162 | //lPtArmXi = xi->PtArmXi(); |
| 1163 | |
| 1164 | //------------------------------------------------ |
| 1165 | // Associate Cascade Candidates to Monte Carlo! |
| 1166 | //------------------------------------------------ |
| 1167 | |
| 1168 | //Warning: Not using Continues... Need to fill tree later! |
| 1169 | |
| 1170 | Int_t lPDGCodeCascade = 0; |
| 1171 | |
| 1172 | Int_t lPID_BachMother = 0; |
| 1173 | Int_t lPID_NegMother = 0; |
| 1174 | Int_t lPID_PosMother = 0; |
| 1175 | |
| 1176 | |
| 1177 | fTreeCascVarPIDPositive = 0; |
| 1178 | fTreeCascVarPIDNegative = 0; |
| 1179 | fTreeCascVarPIDBachelor = 0; |
| 1180 | |
| 1181 | |
| 1182 | if(fDebug > 5) |
| 1183 | cout << "MC EventNumber : " << lMCevent->Header()->GetEvent() |
| 1184 | << " / MC event Number in Run : " << lMCevent->Header()->GetEventNrInRun() << endl; |
| 1185 | |
| 1186 | // - Step 4.1 : level of the V0 daughters |
| 1187 | |
| 1188 | //---------------------------------------- |
| 1189 | // Regular MC ASSOCIATION STARTS HERE |
| 1190 | //---------------------------------------- |
| 1191 | |
| 1192 | Int_t lblPosV0Dghter = (Int_t) TMath::Abs( pTrackXi->GetLabel() ); |
| 1193 | // Abs value = needed ! question of quality track association ... |
| 1194 | Int_t lblNegV0Dghter = (Int_t) TMath::Abs( nTrackXi->GetLabel() ); |
| 1195 | Int_t lblBach = (Int_t) TMath::Abs( bachTrackXi->GetLabel() ); |
| 1196 | |
| 1197 | TParticle* mcPosV0Dghter = lMCstack->Particle( lblPosV0Dghter ); |
| 1198 | TParticle* mcNegV0Dghter = lMCstack->Particle( lblNegV0Dghter ); |
| 1199 | TParticle* mcBach = lMCstack->Particle( lblBach ); |
| 1200 | |
| 1201 | fTreeCascVarPosTransMomMC = mcPosV0Dghter->Pt(); |
| 1202 | fTreeCascVarNegTransMomMC = mcNegV0Dghter->Pt(); |
| 1203 | |
| 1204 | fTreeCascVarPIDPositive = mcPosV0Dghter -> GetPdgCode(); |
| 1205 | fTreeCascVarPIDNegative = mcNegV0Dghter -> GetPdgCode(); |
| 1206 | fTreeCascVarPIDBachelor = mcBach->GetPdgCode(); |
| 1207 | |
| 1208 | // - Step 4.2 : level of the Xi daughters |
| 1209 | |
| 1210 | Int_t lblMotherPosV0Dghter = mcPosV0Dghter->GetFirstMother() ; |
| 1211 | Int_t lblMotherNegV0Dghter = mcNegV0Dghter->GetFirstMother(); |
| 1212 | |
| 1213 | //Rather uncivilized: Open brackets for each 'continue' |
| 1214 | if(! (lblMotherPosV0Dghter != lblMotherNegV0Dghter) ) { // same mother |
| 1215 | if(! (lblMotherPosV0Dghter < 0) ) { // mother != primary (!= -1) |
| 1216 | if(! (lblMotherNegV0Dghter < 0) ) { |
| 1217 | |
| 1218 | // mothers = Lambda candidate ... a priori |
| 1219 | |
| 1220 | TParticle* mcMotherPosV0Dghter = lMCstack->Particle( lblMotherPosV0Dghter ); |
| 1221 | TParticle* mcMotherNegV0Dghter = lMCstack->Particle( lblMotherNegV0Dghter ); |
| 1222 | |
| 1223 | // - Step 4.3 : level of Xi candidate |
| 1224 | |
| 1225 | Int_t lblGdMotherPosV0Dghter = mcMotherPosV0Dghter->GetFirstMother() ; |
| 1226 | Int_t lblGdMotherNegV0Dghter = mcMotherNegV0Dghter->GetFirstMother() ; |
| 1227 | |
| 1228 | if(! (lblGdMotherPosV0Dghter != lblGdMotherNegV0Dghter) ) { |
| 1229 | if(! (lblGdMotherPosV0Dghter < 0) ) { // primary lambda ... |
| 1230 | if(! (lblGdMotherNegV0Dghter < 0) ) { // primary lambda ... |
| 1231 | |
| 1232 | // Gd mothers = Xi candidate ... a priori |
| 1233 | |
| 1234 | TParticle* mcGdMotherPosV0Dghter = lMCstack->Particle( lblGdMotherPosV0Dghter ); |
| 1235 | TParticle* mcGdMotherNegV0Dghter = lMCstack->Particle( lblGdMotherNegV0Dghter ); |
| 1236 | |
| 1237 | Int_t lblMotherBach = (Int_t) TMath::Abs( mcBach->GetFirstMother() ); |
| 1238 | |
| 1239 | // if( lblMotherBach != lblGdMotherPosV0Dghter ) continue; //same mother for bach and V0 daughters |
| 1240 | if(!(lblMotherBach != lblGdMotherPosV0Dghter)) { //same mother for bach and V0 daughters |
| 1241 | |
| 1242 | TParticle* mcMotherBach = lMCstack->Particle( lblMotherBach ); |
| 1243 | |
| 1244 | lPID_BachMother = mcMotherBach->GetPdgCode(); |
| 1245 | lPID_NegMother = mcGdMotherPosV0Dghter->GetPdgCode(); |
| 1246 | lPID_PosMother = mcGdMotherNegV0Dghter->GetPdgCode(); |
| 1247 | |
| 1248 | if(lPID_BachMother==lPID_NegMother && lPID_BachMother==lPID_PosMother){ |
| 1249 | lPDGCodeCascade = lPID_BachMother; |
| 1250 | lXiTransvMomMC = mcMotherBach->Pt(); |
| 1251 | if ( (mcMotherBach->Energy() + mcMotherBach->Pz()) / (mcMotherBach->Energy() - mcMotherBach->Pz() +1.e-13) !=0 ){ |
| 1252 | lRapMC = 0.5*TMath::Log( (mcMotherBach->Energy() + mcMotherBach->Pz()) / (mcMotherBach->Energy() - mcMotherBach->Pz() +1.e-13) ); |
| 1253 | } |
| 1254 | } |
| 1255 | |
| 1256 | }}}}}}} //Ends all conditionals above... |
| 1257 | |
| 1258 | //---------------------------------------- |
| 1259 | // Regular MC ASSOCIATION ENDS HERE |
| 1260 | //---------------------------------------- |
| 1261 | |
| 1262 | //------------------------------------------------ |
| 1263 | // Set Variables for adding to tree |
| 1264 | //------------------------------------------------ |
| 1265 | |
| 1266 | /* 1*/ fTreeCascVarCharge = lChargeXi; |
| 1267 | /* 2*/ if(lInvMassXiMinus!=0) fTreeCascVarMassAsXi = lInvMassXiMinus; |
| 1268 | /* 2*/ if(lInvMassXiPlus!=0) fTreeCascVarMassAsXi = lInvMassXiPlus; |
| 1269 | /* 3*/ if(lInvMassOmegaMinus!=0) fTreeCascVarMassAsOmega = lInvMassOmegaMinus; |
| 1270 | /* 3*/ if(lInvMassOmegaPlus!=0) fTreeCascVarMassAsOmega = lInvMassOmegaPlus; |
| 1271 | /* 4*/ fTreeCascVarPt = lXiTransvMom; |
| 1272 | /* 4*/ fTreeCascVarPtMC = lXiTransvMomMC; |
| 1273 | /* 5*/ fTreeCascVarRapXi = lRapXi ; |
| 1274 | /* 5*/ fTreeCascVarRapMC = lRapMC ; |
| 1275 | /* 6*/ fTreeCascVarRapOmega = lRapOmega ; |
| 1276 | /* 7*/ fTreeCascVarDCACascDaughters = lDcaXiDaughters; |
| 1277 | /* 8*/ fTreeCascVarDCABachToPrimVtx = lDcaBachToPrimVertexXi; |
| 1278 | /* 9*/ fTreeCascVarDCAV0Daughters = lDcaV0DaughtersXi; |
| 1279 | /*10*/ fTreeCascVarDCAV0ToPrimVtx = lDcaV0ToPrimVertexXi; |
| 1280 | /*11*/ fTreeCascVarDCAPosToPrimVtx = lDcaPosToPrimVertexXi; |
| 1281 | /*12*/ fTreeCascVarDCANegToPrimVtx = lDcaNegToPrimVertexXi; |
| 1282 | /*13*/ fTreeCascVarCascCosPointingAngle = lXiCosineOfPointingAngle; |
| 1283 | /*14*/ fTreeCascVarCascRadius = lXiRadius; |
| 1284 | /*15*/ fTreeCascVarV0Mass = lInvMassLambdaAsCascDghter; |
| 1285 | /*16*/ fTreeCascVarV0CosPointingAngle = lV0CosineOfPointingAngleXi; |
| 1286 | /*17*/ fTreeCascVarV0Radius = lV0RadiusXi; |
| 1287 | /*20*/ fTreeCascVarLeastNbrClusters = leastnumberofclusters; |
| 1288 | /*21*/ fTreeCascVarMultiplicity = lMultiplicity; //multiplicity, whatever that may be |
| 1289 | |
| 1290 | /*23*/ fTreeCascVarDistOverTotMom = TMath::Sqrt( |
| 1291 | TMath::Power( lPosXi[0] - lBestPrimaryVtxPos[0] , 2) + |
| 1292 | TMath::Power( lPosXi[1] - lBestPrimaryVtxPos[1] , 2) + |
| 1293 | TMath::Power( lPosXi[2] - lBestPrimaryVtxPos[2] , 2) |
| 1294 | ); |
| 1295 | /*23*/ fTreeCascVarDistOverTotMom /= (lXiTotMom+1e-13); |
| 1296 | /*24*/ //Not specified here, it has been set already (TRunNumber) |
| 1297 | /*25*/ fTreeCascVarPID = lPDGCodeCascade; |
| 1298 | |
| 1299 | //------------------------------------------------ |
| 1300 | // Fill Tree! |
| 1301 | //------------------------------------------------ |
| 1302 | |
| 1303 | // The conditional is meant to decrease excessive |
| 1304 | // memory usage! Be careful when loosening the |
| 1305 | // cut! |
| 1306 | |
| 1307 | //Xi Mass window: 150MeV wide |
| 1308 | //Omega mass window: 150MeV wide |
| 1309 | |
| 1310 | if( (fTreeCascVarMassAsXi<1.32+0.075&&fTreeCascVarMassAsXi>1.32-0.075) || |
| 1311 | (fTreeCascVarMassAsOmega<1.68+0.075&&fTreeCascVarMassAsOmega>1.68-0.075) ){ |
| 1312 | fTreeCascade->Fill(); |
| 1313 | } |
| 1314 | |
| 1315 | //------------------------------------------------ |
| 1316 | // Fill tree over. |
| 1317 | //------------------------------------------------ |
| 1318 | |
| 1319 | }// end of the Cascade loop (ESD or AOD) |
| 1320 | |
| 1321 | // Post output data. |
| 1322 | PostData(1, fListHist); |
| 1323 | PostData(2, fTreeCascade); |
| 1324 | } |
| 1325 | |
| 1326 | //________________________________________________________________________ |
| 1327 | void AliAnalysisTaskExtractPerformanceCascade::Terminate(Option_t *) |
| 1328 | { |
| 1329 | // Draw result to the screen |
| 1330 | // Called once at the end of the query |
| 1331 | |
| 1332 | TList *cRetrievedList = 0x0; |
| 1333 | cRetrievedList = (TList*)GetOutputData(1); |
| 1334 | if(!cRetrievedList){ |
| 1335 | Printf("ERROR - AliAnalysisTaskExtractCascade : ouput data container list not available\n"); |
| 1336 | return; |
| 1337 | } |
| 1338 | |
| 1339 | fHistV0MultiplicityForTrigEvt = dynamic_cast<TH1F*> ( cRetrievedList->FindObject("fHistV0MultiplicityForTrigEvt") ); |
| 1340 | if (!fHistV0MultiplicityForTrigEvt) { |
| 1341 | Printf("ERROR - AliAnalysisTaskExtractCascade : fHistV0MultiplicityForTrigEvt not available"); |
| 1342 | return; |
| 1343 | } |
| 1344 | |
| 1345 | TCanvas *canCheck = new TCanvas("AliAnalysisTaskExtractCascade","V0 Multiplicity",10,10,510,510); |
| 1346 | canCheck->cd(1)->SetLogy(); |
| 1347 | |
| 1348 | fHistV0MultiplicityForTrigEvt->SetMarkerStyle(22); |
| 1349 | fHistV0MultiplicityForTrigEvt->DrawCopy("E"); |
| 1350 | } |
| 1351 | |
| 1352 | //---------------------------------------------------------------------------- |
| 1353 | |
| 1354 | Double_t AliAnalysisTaskExtractPerformanceCascade::MyRapidity(Double_t rE, Double_t rPz) const |
| 1355 | { |
| 1356 | // Local calculation for rapidity |
| 1357 | Double_t ReturnValue = -100; |
| 1358 | if( (rE-rPz+1.e-13) != 0 && (rE+rPz) != 0 ){ |
| 1359 | ReturnValue = 0.5*TMath::Log((rE+rPz)/(rE-rPz+1.e-13)); |
| 1360 | } |
| 1361 | return ReturnValue; |
| 1362 | } |
git://git.uio.no / u / mrichter / AliRoot.git / blame