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1c5acb87 | 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 | **************************************************************************/ | |
1c5acb87 | 15 | |
16 | //_________________________________________________________________________ | |
bdd2a262 | 17 | // Class for PID selection with calorimeters |
49b5c49b | 18 | // The Output of the main method GetIdentifiedParticleType is a PDG number identifying the cluster, |
bdd2a262 | 19 | // being kPhoton, kElectron, kPi0 ... as defined in the header file |
3c1d9afb | 20 | // - GetIdentifiedParticleType(const AliVCluster * cluster) |
49b5c49b | 21 | // Assignes a PID tag to the cluster, right now there is the possibility to : use bayesian weights from reco, |
22 | // recalculate them (EMCAL) or use other procedures not used in reco. | |
bdd2a262 | 23 | // In order to recalculate Bayesian, it is necessary to load the EMCALUtils library |
24 | // and do SwitchOnBayesianRecalculation(). | |
25 | // To change the PID parameters from Low to High like the ones by default, use the constructor | |
26 | // AliCaloPID(flux) | |
27 | // where flux is AliCaloPID::kLow or AliCaloPID::kHigh | |
28 | // If it is necessary to change the parameters use the constructor | |
29 | // AliCaloPID(AliEMCALPIDUtils *utils) and set the parameters before. | |
49b5c49b | 30 | |
3c1d9afb | 31 | // - GetGetIdentifiedParticleTypeFromBayesian(const Double_t * pid, const Float_t energy) |
49b5c49b | 32 | // Reads the PID weights array of the ESDs and depending on its magnitude identifies the particle, |
3c1d9afb | 33 | // executed when bayesian is ON by GetIdentifiedParticleType(const AliVCluster * cluster) |
49b5c49b | 34 | // - SetPIDBits: Simple PID, depending on the thresholds fLOCut fTOFCut and even the |
bdd2a262 | 35 | // result of the PID bayesian a different PID bit is set. |
36 | // | |
49b5c49b | 37 | // - IsTrackMatched(): Independent method that needs to be combined with GetIdentifiedParticleType to know if the cluster was matched |
bdd2a262 | 38 | // |
49b5c49b | 39 | //*-- Author: Gustavo Conesa (INFN-LNF) |
1c5acb87 | 40 | ////////////////////////////////////////////////////////////////////////////// |
41 | ||
42 | ||
43 | // --- ROOT system --- | |
44 | #include <TMath.h> | |
1c5acb87 | 45 | #include <TString.h> |
f21fc003 | 46 | #include <TList.h> |
1c5acb87 | 47 | |
c5693f62 | 48 | // ---- ANALYSIS system ---- |
1c5acb87 | 49 | #include "AliCaloPID.h" |
3c1d9afb | 50 | #include "AliAODCaloCluster.h" |
51 | #include "AliVCaloCells.h" | |
d39cba7e | 52 | #include "AliVTrack.h" |
1c5acb87 | 53 | #include "AliAODPWG4Particle.h" |
f2ccb5b8 | 54 | #include "AliCalorimeterUtils.h" |
49b5c49b | 55 | #include "AliVEvent.h" |
f2ccb5b8 | 56 | |
c5693f62 | 57 | // ---- Detector ---- |
58 | #include "AliEMCALPIDUtils.h" | |
59 | ||
1c5acb87 | 60 | ClassImp(AliCaloPID) |
61 | ||
62 | ||
49b5c49b | 63 | //________________________ |
1c5acb87 | 64 | AliCaloPID::AliCaloPID() : |
49b5c49b | 65 | TObject(), fDebug(-1), fParticleFlux(kLow), |
66 | //Bayesian | |
67 | fEMCALPIDUtils(), fUseBayesianWeights(kFALSE), fRecalculateBayesian(kFALSE), | |
a5fb4114 | 68 | fEMCALPhotonWeight(0.), fEMCALPi0Weight(0.), |
69 | fEMCALElectronWeight(0.), fEMCALChargeWeight(0.), fEMCALNeutralWeight(0.), | |
70 | fPHOSPhotonWeight(0.), fPHOSPi0Weight(0.), | |
71 | fPHOSElectronWeight(0.), fPHOSChargeWeight(0.) , fPHOSNeutralWeight(0.), | |
72 | fPHOSWeightFormula(0), fPHOSPhotonWeightFormula(0), fPHOSPi0WeightFormula(0), | |
49b5c49b | 73 | fPHOSPhotonWeightFormulaExpression(""), |
74 | fPHOSPi0WeightFormulaExpression(""), | |
75 | //PID calculation | |
76 | fEMCALL0CutMax(100.), fEMCALL0CutMin(0), | |
77 | fEMCALDEtaCut(2000.), fEMCALDPhiCut(2000.), | |
78 | fTOFCut(0.), | |
3c1d9afb | 79 | fPHOSDispersionCut(1000), fPHOSRCut(1000), |
5a72d9af | 80 | //Split |
3c1d9afb | 81 | fDoClusterSplitting(kFALSE), |
5a72d9af | 82 | fUseSimpleMassCut(kFALSE), |
83 | fUseSimpleM02Cut(kFALSE), | |
667432ef | 84 | fUseSplitAsyCut(kFALSE), |
035e250e | 85 | fUseSplitSSCut(kTRUE), |
3c1d9afb | 86 | fSplitM02MaxCut(0), fSplitM02MinCut(0), fSplitMinNCells(0), |
87 | fMassEtaMin(0), fMassEtaMax(0), | |
88 | fMassPi0Min(0), fMassPi0Max(0), | |
5a72d9af | 89 | fMassPhoMin(0), fMassPhoMax(0), |
1be44524 | 90 | fM02MaxParamShiftNLMN(0), |
ac207ee4 | 91 | fSplitWidthSigma(0), fMassShiftHighECell(0) |
1c5acb87 | 92 | { |
477d6cee | 93 | //Ctor |
94 | ||
95 | //Initialize parameters | |
96 | InitParameters(); | |
1c5acb87 | 97 | } |
98 | ||
49b5c49b | 99 | //________________________________________ |
bdd2a262 | 100 | AliCaloPID::AliCaloPID(const Int_t flux) : |
49b5c49b | 101 | TObject(), fDebug(-1), fParticleFlux(flux), |
102 | //Bayesian | |
103 | fEMCALPIDUtils(), fUseBayesianWeights(kFALSE), fRecalculateBayesian(kFALSE), | |
a5fb4114 | 104 | fEMCALPhotonWeight(0.), fEMCALPi0Weight(0.), |
105 | fEMCALElectronWeight(0.), fEMCALChargeWeight(0.), fEMCALNeutralWeight(0.), | |
106 | fPHOSPhotonWeight(0.), fPHOSPi0Weight(0.), | |
107 | fPHOSElectronWeight(0.), fPHOSChargeWeight(0.) , fPHOSNeutralWeight(0.), | |
108 | fPHOSWeightFormula(0), fPHOSPhotonWeightFormula(0), fPHOSPi0WeightFormula(0), | |
49b5c49b | 109 | fPHOSPhotonWeightFormulaExpression(""), |
110 | fPHOSPi0WeightFormulaExpression(""), | |
111 | //PID calculation | |
112 | fEMCALL0CutMax(100.), fEMCALL0CutMin(0), | |
113 | fEMCALDEtaCut(2000.), fEMCALDPhiCut(2000.), | |
114 | fTOFCut(0.), | |
3c1d9afb | 115 | fPHOSDispersionCut(1000), fPHOSRCut(1000), |
5a72d9af | 116 | //Split |
3c1d9afb | 117 | fDoClusterSplitting(kFALSE), |
5a72d9af | 118 | fUseSimpleMassCut(kFALSE), |
119 | fUseSimpleM02Cut(kFALSE), | |
667432ef | 120 | fUseSplitAsyCut(kFALSE), |
035e250e | 121 | fUseSplitSSCut(kTRUE), |
3c1d9afb | 122 | fSplitM02MaxCut(0), fSplitM02MinCut(0), fSplitMinNCells(0), |
123 | fMassEtaMin(0), fMassEtaMax(0), | |
124 | fMassPi0Min(0), fMassPi0Max(0), | |
5a72d9af | 125 | fMassPhoMin(0), fMassPhoMax(0), |
10507906 | 126 | fM02MaxParamShiftNLMN(0), |
ac207ee4 | 127 | fSplitWidthSigma(0), fMassShiftHighECell(0) |
bdd2a262 | 128 | { |
9a6fa057 | 129 | //Ctor |
bdd2a262 | 130 | |
9a6fa057 | 131 | //Initialize parameters |
132 | InitParameters(); | |
49b5c49b | 133 | |
bdd2a262 | 134 | } |
135 | ||
49b5c49b | 136 | //_______________________________________________ |
f21fc003 | 137 | AliCaloPID::AliCaloPID(const TNamed * emcalpid) : |
49b5c49b | 138 | TObject(), fDebug(-1), fParticleFlux(kLow), |
139 | //Bayesian | |
140 | fEMCALPIDUtils((AliEMCALPIDUtils*)emcalpid), | |
141 | fUseBayesianWeights(kFALSE), fRecalculateBayesian(kFALSE), | |
142 | fEMCALPhotonWeight(0.), fEMCALPi0Weight(0.), | |
143 | fEMCALElectronWeight(0.), fEMCALChargeWeight(0.), fEMCALNeutralWeight(0.), | |
144 | fPHOSPhotonWeight(0.), fPHOSPi0Weight(0.), | |
145 | fPHOSElectronWeight(0.), fPHOSChargeWeight(0.) , fPHOSNeutralWeight(0.), | |
146 | fPHOSWeightFormula(0), fPHOSPhotonWeightFormula(0), fPHOSPi0WeightFormula(0), | |
147 | fPHOSPhotonWeightFormulaExpression(""), | |
148 | fPHOSPi0WeightFormulaExpression(""), | |
149 | //PID calculation | |
150 | fEMCALL0CutMax(100.), fEMCALL0CutMin(0), | |
151 | fEMCALDEtaCut(2000.), fEMCALDPhiCut(2000.), | |
152 | fTOFCut(0.), | |
3c1d9afb | 153 | fPHOSDispersionCut(1000), fPHOSRCut(1000), |
5a72d9af | 154 | //Split |
3c1d9afb | 155 | fDoClusterSplitting(kFALSE), |
5a72d9af | 156 | fUseSimpleMassCut(kFALSE), |
157 | fUseSimpleM02Cut(kFALSE), | |
667432ef | 158 | fUseSplitAsyCut(kFALSE), |
035e250e | 159 | fUseSplitSSCut(kTRUE), |
3c1d9afb | 160 | fSplitM02MaxCut(0), fSplitM02MinCut(0), fSplitMinNCells(0), |
161 | fMassEtaMin(0), fMassEtaMax(0), | |
162 | fMassPi0Min(0), fMassPi0Max(0), | |
5a72d9af | 163 | fMassPhoMin(0), fMassPhoMax(0), |
10507906 | 164 | fM02MaxParamShiftNLMN(0), |
ac207ee4 | 165 | fSplitWidthSigma(0), fMassShiftHighECell(0) |
5a72d9af | 166 | |
bdd2a262 | 167 | { |
9a6fa057 | 168 | //Ctor |
49b5c49b | 169 | |
9a6fa057 | 170 | //Initialize parameters |
171 | InitParameters(); | |
bdd2a262 | 172 | } |
173 | ||
49b5c49b | 174 | //_______________________ |
175 | AliCaloPID::~AliCaloPID() | |
176 | { | |
477d6cee | 177 | //Dtor |
178 | ||
a5fb4114 | 179 | delete fPHOSPhotonWeightFormula ; |
180 | delete fPHOSPi0WeightFormula ; | |
181 | delete fEMCALPIDUtils ; | |
49b5c49b | 182 | |
9a6fa057 | 183 | } |
1c5acb87 | 184 | |
49b5c49b | 185 | //_______________________________ |
1c5acb87 | 186 | void AliCaloPID::InitParameters() |
187 | { | |
477d6cee | 188 | //Initialize the parameters of the PID. |
189 | ||
49b5c49b | 190 | // Bayesian |
2007809d | 191 | fEMCALPhotonWeight = 0.6 ; |
192 | fEMCALPi0Weight = 0.6 ; | |
193 | fEMCALElectronWeight = 0.6 ; | |
194 | fEMCALChargeWeight = 0.6 ; | |
195 | fEMCALNeutralWeight = 0.6 ; | |
477d6cee | 196 | |
2007809d | 197 | fPHOSPhotonWeight = 0.6 ; |
198 | fPHOSPi0Weight = 0.6 ; | |
199 | fPHOSElectronWeight = 0.6 ; | |
200 | fPHOSChargeWeight = 0.6 ; | |
201 | fPHOSNeutralWeight = 0.6 ; | |
477d6cee | 202 | |
203 | //Formula to set the PID weight threshold for photon or pi0 | |
a5fb4114 | 204 | fPHOSWeightFormula = kFALSE; |
205 | fPHOSPhotonWeightFormulaExpression = "0.98*(x<40)+ 0.68*(x>=100)+(x>=40 && x<100)*(0.98+x*(6e-3)-x*x*(2e-04)+x*x*x*(1.1e-06))"; | |
206 | fPHOSPi0WeightFormulaExpression = "0.98*(x<65)+ 0.915*(x>=100)+(x>=65 && x-x*(1.95e-3)-x*x*(4.31e-05)+x*x*x*(3.61e-07))" ; | |
207 | ||
bdd2a262 | 208 | if(fRecalculateBayesian){ |
49b5c49b | 209 | if(fParticleFlux == kLow){ |
210 | printf("AliCaloPID::Init() - SetLOWFluxParam\n"); | |
211 | fEMCALPIDUtils->SetLowFluxParam() ; | |
212 | } | |
213 | else if (fParticleFlux == kHigh){ | |
214 | printf("AliCaloPID::Init() - SetHIGHFluxParam\n"); | |
215 | fEMCALPIDUtils->SetHighFluxParam() ; | |
216 | } | |
217 | } | |
218 | ||
219 | //PID recalculation, not bayesian | |
220 | ||
221 | //EMCAL | |
222 | fEMCALL0CutMax = 0.3 ; | |
223 | fEMCALL0CutMin = 0.01; | |
224 | ||
225 | fEMCALDPhiCut = 0.05; // Same cut as in AliEMCALRecoUtils | |
226 | fEMCALDEtaCut = 0.025;// Same cut as in AliEMCALRecoUtils | |
227 | ||
228 | // PHOS / EMCAL, not used | |
229 | fTOFCut = 1.e-6; | |
230 | ||
231 | //PHOS | |
232 | fPHOSRCut = 2. ; | |
233 | fPHOSDispersionCut = 2.5; | |
234 | ||
3c1d9afb | 235 | // Cluster splitting |
236 | ||
5a72d9af | 237 | fSplitM02MinCut = 0.3 ; |
238 | fSplitM02MaxCut = 5 ; | |
239 | fSplitMinNCells = 4 ; | |
3c1d9afb | 240 | |
241 | fMassEtaMin = 0.4; | |
242 | fMassEtaMax = 0.6; | |
243 | ||
5a72d9af | 244 | fMassPi0Min = 0.11; |
245 | fMassPi0Max = 0.18; | |
3c1d9afb | 246 | |
247 | fMassPhoMin = 0.0; | |
5a72d9af | 248 | fMassPhoMax = 0.08; |
249 | ||
1be44524 | 250 | fMassPi0Param[0][0] = 0 ; // Constant term on mass dependence |
251 | fMassPi0Param[0][1] = 0 ; // slope term on mass dependence | |
252 | fMassPi0Param[0][2] = 0 ; // E function change | |
253 | fMassPi0Param[0][3] = 0.063 ; // constant term on mass dependence | |
254 | fMassPi0Param[0][4] = 0.004 ; // slope term on mass dependence | |
255 | fMassPi0Param[0][5] = 0.070 ; // Absolute low mass cut | |
256 | ||
257 | fMassPi0Param[1][0] = 0.131 ; // Constant term below 21 GeV | |
258 | fMassPi0Param[1][1] = 0 ; // slope term below 21 GeV | |
259 | fMassPi0Param[1][2] = 21 ; // E function change | |
260 | fMassPi0Param[1][3] = 0.095 ; // constant term on mass dependence | |
261 | fMassPi0Param[1][4] = 0.0017; // slope term on mass dependence | |
262 | fMassPi0Param[1][5] = 0.070 ; // Absolute low mass cut | |
263 | ||
264 | fWidthPi0Param[0][0] = 0.023 ; // Constant term on width dependence | |
265 | fWidthPi0Param[0][1] = 0.0 ; // Slope term on width dependence | |
266 | fWidthPi0Param[0][2] = 20 ; // E function change | |
267 | fWidthPi0Param[0][3] =-0.001 ; // Constant term on width dependence | |
268 | fWidthPi0Param[0][4] = 0.0012; // Slope term on width dependence | |
269 | fWidthPi0Param[0][5] = 0.0 ; // xx term | |
270 | ||
271 | fWidthPi0Param[1][0] = 0.0075; // Constant term on width dependence | |
272 | fWidthPi0Param[1][1] = 0.0006; // Slope term on width dependence | |
273 | fWidthPi0Param[1][2] = 19 ; // E function change | |
274 | fWidthPi0Param[1][3] = 0.04 ; // Constant term on width dependence | |
275 | fWidthPi0Param[1][4] =-0.0019; // Slope term on width dependence | |
276 | fWidthPi0Param[1][5] = 0.000041;// xx term | |
ac207ee4 | 277 | |
278 | fMassShiftHighECell = 0; // Shift of cuts in case of higher energy threshold in cells, 5 MeV when Ecell>150 MeV | |
279 | ||
280 | //TF1 *lM02MinNLM1 = new TF1("M02MinNLM1","exp(2.135-0.245*x)",6,13.6); | |
281 | fM02MinParam[0][0] = 2.135 ; | |
282 | fM02MinParam[0][1] =-0.245 ; | |
283 | fM02MinParam[0][2] = 0.0 ; | |
284 | fM02MinParam[0][3] = 0.0 ; | |
285 | fM02MinParam[0][4] = 0.0 ; | |
1be44524 | 286 | |
287 | // Same as NLM=1 for NLM=2 | |
288 | fM02MinParam[1][0] = 2.135 ; | |
289 | fM02MinParam[1][1] =-0.245 ; | |
290 | fM02MinParam[1][2] = 0.0 ; | |
291 | fM02MinParam[1][3] = 0.0 ; | |
ac207ee4 | 292 | fM02MinParam[1][4] = 0.0 ; |
ac207ee4 | 293 | |
294 | //TF1 *lM02MaxNLM1 = new TF1("M02MaxNLM1","exp(0.0662-0.0201*x)-0.0955+0.00186*x[0]+9.91/x[0]",6,100); | |
295 | fM02MaxParam[0][0] = 0.0662 ; | |
296 | fM02MaxParam[0][1] =-0.0201 ; | |
297 | fM02MaxParam[0][2] =-0.0955 ; | |
298 | fM02MaxParam[0][3] = 0.00186; | |
299 | fM02MaxParam[0][4] = 9.91 ; | |
ac207ee4 | 300 | |
301 | //TF1 *lM02MaxNLM2 = new TF1("M02MaxNLM2","exp(0.353-0.0264*x)-0.524+0.00559*x[0]+21.9/x[0]",6,100); | |
302 | fM02MaxParam[1][0] = 0.353 ; | |
303 | fM02MaxParam[1][1] =-0.0264 ; | |
304 | fM02MaxParam[1][2] =-0.524 ; | |
305 | fM02MaxParam[1][3] = 0.00559; | |
306 | fM02MaxParam[1][4] = 21.9 ; | |
ac207ee4 | 307 | |
1be44524 | 308 | fM02MaxParamShiftNLMN = 0.75; |
995c6150 | 309 | |
1be44524 | 310 | //TF1 *lAsyNLM1 = new TF1("lAsyNLM1","0.96-879/(x*x*x)",5,100); |
311 | fAsyMinParam[0][0] = 0.96 ; | |
312 | fAsyMinParam[0][1] = 0 ; | |
313 | fAsyMinParam[0][2] =-879 ; | |
314 | fAsyMinParam[0][3] = 0.96 ; // Absolute max | |
315 | ||
316 | //TF1 *lAsyNLM2 = new TF1("lAsyNLM2","0.95+0.0015*x-233/(x*x*x)",5,100); | |
317 | fAsyMinParam[1][0] = 0.95 ; | |
318 | fAsyMinParam[1][1] = 0.0015; | |
319 | fAsyMinParam[1][2] =-233 ; | |
320 | fAsyMinParam[1][3] = 1.0 ; // Absolute max | |
321 | ||
4d97a954 | 322 | fSplitEFracMin[0] = 0.0 ; // 0.96 |
323 | fSplitEFracMin[1] = 0.0 ; // 0.96 | |
324 | fSplitEFracMin[2] = 0.0 ; // 0.7 | |
325 | ||
2c36e041 | 326 | fSubClusterEMin[0] = 0.0; // 3 GeV |
327 | fSubClusterEMin[1] = 0.0; // 1 GeV | |
328 | fSubClusterEMin[2] = 0.0; // 1 GeV | |
329 | ||
330 | ||
5b4c2f5b | 331 | fSplitWidthSigma = 3. ; |
5a72d9af | 332 | |
333 | } | |
334 | ||
995c6150 | 335 | |
336 | //_____________________________________________________________________________________________________ | |
337 | Bool_t AliCaloPID::IsInPi0SplitAsymmetryRange(const Float_t energy, const Float_t asy, const Int_t nlm) | |
338 | { | |
339 | // Select the appropriate mass range for pi0 selection in splitting method | |
340 | // No used yet in splitting ID decision | |
341 | ||
035e250e | 342 | if(!fUseSplitAsyCut) return kTRUE ; |
343 | ||
995c6150 | 344 | Float_t abasy = TMath::Abs(asy); |
345 | ||
afc83530 | 346 | Int_t inlm = nlm-1; |
347 | if(nlm > 2) inlm=1; // only 2 cases defined nlm=1 and nlm>=2 | |
348 | ||
995c6150 | 349 | // Get the parametrized min cut of asymmetry for NLM=2 up to 11 GeV |
667432ef | 350 | |
1be44524 | 351 | Float_t cut = fAsyMinParam[inlm][0] + fAsyMinParam[inlm][1]*energy + fAsyMinParam[inlm][2]/energy/energy/energy ; |
ac207ee4 | 352 | |
667432ef | 353 | // In any case and beyond validity energy range of the function, |
354 | // the parameter cannot be smaller than 1 | |
1be44524 | 355 | if( cut > fAsyMinParam[inlm][3] ) cut = fAsyMinParam[inlm][3]; |
995c6150 | 356 | |
afc83530 | 357 | //printf("energy %2.2f - nlm: %d (%d)- p0 %f, p1 %f, p2 %f, p3 %f ; cut: %2.2f\n",energy,nlm,inlm, |
358 | // fAsyMinParam[inlm][0],fAsyMinParam[inlm][1],fAsyMinParam[inlm][2],fAsyMinParam[inlm][3],cut); | |
995c6150 | 359 | |
360 | if(abasy < cut) return kTRUE; | |
361 | else return kFALSE; | |
362 | ||
363 | } | |
364 | ||
5a72d9af | 365 | //_________________________________________________________________________________________________ |
366 | Bool_t AliCaloPID::IsInPi0SplitMassRange(const Float_t energy, const Float_t mass, const Int_t nlm) | |
367 | { | |
368 | // Select the appropriate mass range for pi0 selection in splitting method | |
369 | ||
370 | if(fUseSimpleMassCut) | |
371 | { | |
372 | if(mass < fMassPi0Max && mass > fMassPi0Min) return kTRUE; | |
373 | else return kFALSE; | |
374 | } | |
375 | ||
376 | // Get the selected mean value as reference for the mass | |
ac207ee4 | 377 | Int_t inlm = nlm-1; |
378 | if(nlm > 2) inlm=1; // only 2 cases defined nlm=1 and nlm>=2 | |
04852512 | 379 | |
1be44524 | 380 | Float_t meanMass = energy * fMassPi0Param[inlm][1] + fMassPi0Param[inlm][0]; |
381 | if(energy > fMassPi0Param[inlm][2]) meanMass = energy * fMassPi0Param[inlm][4] + fMassPi0Param[inlm][3]; | |
ac207ee4 | 382 | |
383 | // In case of higher energy cell cut than 50 MeV, smaller mean mass | |
384 | meanMass -= fMassShiftHighECell; | |
385 | ||
5a72d9af | 386 | // Get the parametrized width of the mass |
387 | Float_t width = 0.009; | |
1be44524 | 388 | if (energy > 8 && energy < fWidthPi0Param[inlm][2]) |
389 | width = energy * fWidthPi0Param[inlm][1] + fWidthPi0Param[inlm][0]; | |
390 | else if( energy > fWidthPi0Param[inlm][2]) | |
391 | width = energy * energy * fWidthPi0Param[inlm][5] + energy * fWidthPi0Param[inlm][4] + fWidthPi0Param[inlm][3]; | |
392 | ||
5a72d9af | 393 | // Calculate the 2 sigma cut |
394 | Float_t minMass = meanMass-fSplitWidthSigma*width; | |
395 | Float_t maxMass = meanMass+fSplitWidthSigma*width; | |
396 | ||
397 | // In case of low energy, hard cut to avoid conversions | |
1be44524 | 398 | if(energy < 10 && minMass < fMassPi0Param[inlm][5] ) minMass = fMassPi0Param[inlm][5]; |
5a72d9af | 399 | |
ac207ee4 | 400 | //printf("E %2.2f, mass %1.1f, nlm %d: sigma %1.1f width %3.1f, mean Mass %3.0f, minMass %3.0f, maxMass %3.0f\n ", |
401 | // energy,mass *1000, inlm, fSplitWidthSigma, width*1000, meanMass*1000,minMass*1000,maxMass*1000); | |
5a72d9af | 402 | |
403 | if(mass < maxMass && mass > minMass) return kTRUE; | |
404 | else return kFALSE; | |
5a72d9af | 405 | |
406 | } | |
407 | ||
1be44524 | 408 | //________________________________________________ |
409 | Bool_t AliCaloPID::IsInM02Range(const Float_t m02) | |
410 | { | |
411 | // Select the appropriate m02 range, fix cut, not E dependent | |
412 | ||
413 | Float_t minCut = fSplitM02MinCut; | |
414 | Float_t maxCut = fSplitM02MaxCut; | |
415 | ||
416 | if(m02 < maxCut && m02 > minCut) return kTRUE; | |
417 | else return kFALSE; | |
418 | ||
419 | } | |
420 | ||
421 | //___________________________________________________________________________________________ | |
5b4c2f5b | 422 | Bool_t AliCaloPID::IsInPi0M02Range(const Float_t energy, const Float_t m02, const Int_t nlm) |
5a72d9af | 423 | { |
5b4c2f5b | 424 | // Select the appropriate m02 range in splitting method for pi0 |
5a72d9af | 425 | |
035e250e | 426 | if(!fUseSplitSSCut) return kTRUE ; |
1be44524 | 427 | |
428 | //First check the absolute minimum and maximum | |
429 | if(!IsInM02Range(m02)) return kFALSE ; | |
035e250e | 430 | |
1be44524 | 431 | //If requested, check the E dependent cuts |
432 | else if(!fUseSimpleM02Cut) | |
5a72d9af | 433 | { |
a5a3f703 | 434 | Int_t inlm = nlm-1; |
435 | if(nlm > 2) inlm=1; // only 2 cases defined nlm=1 and nlm>=2 | |
5b4c2f5b | 436 | |
1be44524 | 437 | Float_t minCut = fSplitM02MinCut; |
438 | Float_t maxCut = fSplitM02MaxCut; | |
439 | ||
ac207ee4 | 440 | //e^{a+bx} + c + dx + e/x |
1be44524 | 441 | if(energy > 1) minCut = TMath::Exp( fM02MinParam[inlm][0] + fM02MinParam[inlm][1]*energy ) + |
442 | fM02MinParam[inlm][2] + fM02MinParam[inlm][3]*energy + fM02MinParam[inlm][4]/energy; | |
443 | ||
444 | if(energy > 1) maxCut = TMath::Exp( fM02MaxParam[inlm][0] + fM02MaxParam[inlm][1]*energy ) + | |
445 | fM02MaxParam[inlm][2] + fM02MaxParam[inlm][3]*energy + fM02MaxParam[inlm][4]/energy; | |
446 | ||
667432ef | 447 | // In any case and beyond validity energy range of the function, |
1be44524 | 448 | // the parameter cannot be smaller than 0.3 or larger than 4-5 |
449 | if( minCut < fSplitM02MinCut) minCut = fSplitM02MinCut; | |
450 | if( maxCut > fSplitM02MaxCut) maxCut = fSplitM02MaxCut; | |
451 | if( nlm > 2 ) maxCut+=fM02MaxParamShiftNLMN; | |
452 | ||
453 | //if(energy > 7) printf("\t \t E %2.2f, nlm %d, m02 %2.2f, minM02 %2.2f, maxM02 %2.2f\n",energy, nlm, m02,minCut,maxCut); | |
454 | ||
455 | if(m02 < maxCut && m02 > minCut) return kTRUE; | |
456 | else return kFALSE; | |
457 | ||
5a72d9af | 458 | } |
459 | ||
1be44524 | 460 | else return kTRUE; |
5a72d9af | 461 | |
49b5c49b | 462 | } |
463 | ||
5a72d9af | 464 | |
5b4c2f5b | 465 | //_____________________________________________________________________________________________ |
466 | Bool_t AliCaloPID::IsInEtaM02Range(const Float_t energy, const Float_t m02, const Int_t nlm) | |
467 | { | |
468 | // Select the appropriate m02 range in splitting method to select eta's | |
469 | // Use same parametrization as pi0, just shift the distributions (to be tuned) | |
470 | ||
035e250e | 471 | if(!fUseSplitSSCut) return kTRUE ; |
472 | ||
1be44524 | 473 | //First check the absolute minimum and maximum |
474 | if(!IsInM02Range(m02)) return kFALSE ; | |
5b4c2f5b | 475 | |
1be44524 | 476 | //DO NOT USE, study parametrization |
477 | ||
478 | //If requested, check the E dependent cuts | |
479 | else if(!fUseSimpleM02Cut) | |
5b4c2f5b | 480 | { |
481 | Int_t inlm = nlm-1; | |
482 | if(nlm > 2) inlm=1; // only 2 cases defined nlm=1 and nlm>=2 | |
483 | ||
1be44524 | 484 | Float_t minCut = fSplitM02MinCut; |
485 | Float_t maxCut = fSplitM02MaxCut; | |
486 | ||
5b4c2f5b | 487 | Float_t shiftE = energy-20; // to be tuned |
488 | if(nlm==1) shiftE=energy-28; | |
489 | ||
ac207ee4 | 490 | //e^{a+bx} + c + dx + e/x |
1be44524 | 491 | if(shiftE > 1) minCut = TMath::Exp( fM02MinParam[inlm][0] + fM02MinParam[inlm][1]*shiftE ) + |
492 | fM02MinParam[inlm][2] + fM02MinParam[inlm][3]*shiftE + fM02MinParam[inlm][4]/shiftE; | |
493 | ||
494 | // In any case the parameter cannot be smaller than 0.3 | |
495 | if( minCut < fSplitM02MinCut) minCut = fSplitM02MinCut; | |
5b4c2f5b | 496 | |
5b4c2f5b | 497 | shiftE = energy+20; // to be tuned |
5b4c2f5b | 498 | |
1be44524 | 499 | if(shiftE > 1) maxCut = 1 + TMath::Exp( fM02MaxParam[inlm][0] + fM02MaxParam[inlm][1]*shiftE ) + |
500 | fM02MaxParam[inlm][2] + fM02MaxParam[inlm][3]*shiftE + fM02MaxParam[inlm][4]/shiftE; | |
501 | ||
502 | // In any case the parameter cannot be smaller than 4-5 | |
503 | if( maxCut > fSplitM02MaxCut) maxCut = fSplitM02MaxCut; | |
504 | if( nlm > 2 ) maxCut+=fM02MaxParamShiftNLMN; | |
505 | ||
506 | //if(energy>6)printf("\t \t E %2.2f, nlm %d, m02 %2.2f, minM02 %2.2f, maxM02 %2.2f\n",energy, nlm, m02,minCut,maxCut); | |
507 | ||
508 | if(m02 < maxCut && m02 > minCut) return kTRUE; | |
509 | else return kFALSE; | |
510 | ||
5b4c2f5b | 511 | } |
512 | ||
1be44524 | 513 | else return kTRUE; |
5b4c2f5b | 514 | |
515 | } | |
516 | ||
517 | //_____________________________________________________________________________________________ | |
518 | Bool_t AliCaloPID::IsInConM02Range(const Float_t energy, const Float_t m02, const Int_t nlm) | |
519 | { | |
520 | // Select the appropriate m02 range in splitting method for converted photons | |
521 | // Just min limit for pi0s is max for conversion. | |
522 | ||
035e250e | 523 | if(!fUseSplitSSCut) return kTRUE ; |
524 | ||
5b4c2f5b | 525 | Float_t minCut = 0.1; |
1be44524 | 526 | Float_t maxCut = fSplitM02MinCut; |
5b4c2f5b | 527 | |
528 | if(!fUseSimpleM02Cut) | |
529 | { | |
530 | Int_t inlm = nlm-1; | |
531 | if(nlm > 2) inlm=1; // only 2 cases defined nlm=1 and nlm>=2 | |
532 | ||
ac207ee4 | 533 | //e^{a+bx} + c + dx + e/x |
1be44524 | 534 | if(energy > 1) maxCut = TMath::Exp( fM02MinParam[inlm][0] + fM02MinParam[inlm][1]*energy ) + |
535 | fM02MinParam[inlm][2] + fM02MinParam[inlm][3]*energy + fM02MinParam[inlm][4]/energy; | |
5b4c2f5b | 536 | |
1be44524 | 537 | if( maxCut < fSplitM02MinCut) maxCut = fSplitM02MinCut; |
5b4c2f5b | 538 | } |
539 | ||
5b4c2f5b | 540 | if(m02 < maxCut && m02 > minCut) return kTRUE; |
541 | else return kFALSE; | |
542 | ||
543 | } | |
544 | ||
c5693f62 | 545 | //______________________________________________ |
546 | AliEMCALPIDUtils *AliCaloPID::GetEMCALPIDUtils() | |
547 | { | |
548 | // return pointer to AliEMCALPIDUtils, create it if needed | |
549 | ||
550 | if(!fEMCALPIDUtils) fEMCALPIDUtils = new AliEMCALPIDUtils ; | |
551 | return fEMCALPIDUtils ; | |
552 | ||
553 | } | |
554 | ||
555 | ||
49b5c49b | 556 | //______________________________________________________________________ |
3c1d9afb | 557 | Int_t AliCaloPID::GetIdentifiedParticleType(const AliVCluster * cluster) |
49b5c49b | 558 | { |
559 | // Returns a PDG number corresponding to the likely ID of the cluster | |
560 | ||
3c1d9afb | 561 | Float_t energy = cluster->E(); |
49b5c49b | 562 | Float_t lambda0 = cluster->GetM02(); |
563 | Float_t lambda1 = cluster->GetM20(); | |
564 | ||
565 | // --------------------- | |
566 | // Use bayesian approach | |
567 | // --------------------- | |
568 | ||
3c1d9afb | 569 | if(fUseBayesianWeights) |
570 | { | |
00a38d07 | 571 | Double_t weights[AliPID::kSPECIESCN]; |
49b5c49b | 572 | |
3c1d9afb | 573 | if(cluster->IsEMCAL() && fRecalculateBayesian) |
574 | { | |
49b5c49b | 575 | fEMCALPIDUtils->ComputePID(energy, lambda0); |
00a38d07 | 576 | for(Int_t i = 0; i < AliPID::kSPECIESCN; i++) weights[i] = fEMCALPIDUtils->GetPIDFinal(i); |
49b5c49b | 577 | } |
3c1d9afb | 578 | else |
579 | { | |
00a38d07 | 580 | for(Int_t i = 0; i < AliPID::kSPECIESCN; i++) weights[i] = cluster->GetPID()[i]; |
49b5c49b | 581 | } |
582 | ||
3c1d9afb | 583 | if(fDebug > 0) PrintClusterPIDWeights(weights); |
49b5c49b | 584 | |
3c1d9afb | 585 | return GetIdentifiedParticleTypeFromBayesWeights(cluster->IsEMCAL(), weights, energy); |
bdd2a262 | 586 | } |
49b5c49b | 587 | |
588 | // ------------------------------------------------------- | |
589 | // Calculate PID SS from data, do not use bayesian weights | |
590 | // ------------------------------------------------------- | |
591 | ||
3c1d9afb | 592 | if(fDebug > 0) printf("AliCaloPID::GetIdentifiedParticleType: EMCAL %d?, E %3.2f, l0 %3.2f, l1 %3.2f, disp %3.2f, tof %1.11f, distCPV %3.2f, distToBC %1.1f, NMax %d\n", |
593 | cluster->IsEMCAL(),energy,lambda0,cluster->GetM20(),cluster->GetDispersion(),cluster->GetTOF(), | |
49b5c49b | 594 | cluster->GetEmcCpvDistance(), cluster->GetDistanceToBadChannel(),cluster->GetNExMax()); |
595 | ||
3c1d9afb | 596 | if(cluster->IsEMCAL()) |
597 | { | |
49b5c49b | 598 | if(fDebug > 0) printf("AliCaloPID::GetIdentifiedParticleType() - EMCAL SS %f <%f < %f?\n",fEMCALL0CutMin, lambda0, fEMCALL0CutMax); |
599 | ||
600 | if(lambda0 < fEMCALL0CutMax && lambda0 > fEMCALL0CutMin) return kPhoton ; | |
601 | else return kNeutralUnknown ; | |
3c1d9afb | 602 | } // EMCAL |
603 | else // PHOS | |
604 | { | |
605 | if(TestPHOSDispersion(energy,lambda0,lambda1) < fPHOSDispersionCut) return kPhoton; | |
606 | else return kNeutralUnknown; | |
49b5c49b | 607 | } |
608 | ||
1c5acb87 | 609 | } |
610 | ||
49b5c49b | 611 | //_______________________________________________________________________________ |
3c1d9afb | 612 | Int_t AliCaloPID::GetIdentifiedParticleTypeFromBayesWeights(const Bool_t isEMCAL, |
49b5c49b | 613 | const Double_t * pid, |
614 | const Float_t energy) | |
615 | { | |
616 | //Return most probable identity of the particle after bayesian weights calculated in reconstruction | |
477d6cee | 617 | |
3c1d9afb | 618 | if(!pid) |
619 | { | |
b8bec44f | 620 | AliFatal("pid pointer not initialized!!!"); |
477d6cee | 621 | } |
622 | ||
15800db4 | 623 | Float_t wPh = fPHOSPhotonWeight ; |
477d6cee | 624 | Float_t wPi0 = fPHOSPi0Weight ; |
15800db4 | 625 | Float_t wE = fPHOSElectronWeight ; |
626 | Float_t wCh = fPHOSChargeWeight ; | |
627 | Float_t wNe = fPHOSNeutralWeight ; | |
49b5c49b | 628 | |
3c1d9afb | 629 | if(!isEMCAL && fPHOSWeightFormula){ |
a5fb4114 | 630 | wPh = GetPHOSPhotonWeightFormula()->Eval(energy) ; |
631 | wPi0 = GetPHOSPi0WeightFormula() ->Eval(energy); | |
632 | } | |
3c1d9afb | 633 | else |
634 | { | |
477d6cee | 635 | wPh = fEMCALPhotonWeight ; |
636 | wPi0 = fEMCALPi0Weight ; | |
637 | wE = fEMCALElectronWeight ; | |
638 | wCh = fEMCALChargeWeight ; | |
639 | wNe = fEMCALNeutralWeight ; | |
477d6cee | 640 | } |
641 | ||
3c1d9afb | 642 | if(fDebug > 0) PrintClusterPIDWeights(pid); |
643 | ||
477d6cee | 644 | Int_t pdg = kNeutralUnknown ; |
c8fe2783 | 645 | Float_t chargedHadronWeight = pid[AliVCluster::kProton]+pid[AliVCluster::kKaon]+ |
49b5c49b | 646 | pid[AliVCluster::kPion]+pid[AliVCluster::kMuon]; |
c8fe2783 | 647 | Float_t neutralHadronWeight = pid[AliVCluster::kNeutron]+pid[AliVCluster::kKaon0]; |
648 | Float_t allChargedWeight = pid[AliVCluster::kElectron]+pid[AliVCluster::kEleCon]+ chargedHadronWeight; | |
649 | Float_t allNeutralWeight = pid[AliVCluster::kPhoton]+pid[AliVCluster::kPi0]+ neutralHadronWeight; | |
477d6cee | 650 | |
651 | //Select most probable ID | |
3c1d9afb | 652 | if(!isEMCAL) // PHOS |
653 | { | |
a5fb4114 | 654 | if(pid[AliVCluster::kPhoton] > wPh) pdg = kPhoton ; |
655 | else if(pid[AliVCluster::kPi0] > wPi0) pdg = kPi0 ; | |
c8fe2783 | 656 | else if(pid[AliVCluster::kElectron] > wE) pdg = kElectron ; |
a5fb4114 | 657 | else if(pid[AliVCluster::kEleCon] > wE) pdg = kEleCon ; |
658 | else if(chargedHadronWeight > wCh) pdg = kChargedHadron ; | |
659 | else if(neutralHadronWeight > wNe) pdg = kNeutralHadron ; | |
477d6cee | 660 | else if(allChargedWeight > allNeutralWeight) |
661 | pdg = kChargedUnknown ; | |
662 | else | |
663 | pdg = kNeutralUnknown ; | |
664 | } | |
3c1d9afb | 665 | else //EMCAL |
666 | { | |
2007809d | 667 | if(pid[AliVCluster::kPhoton] > wPh) pdg = kPhoton ; |
668 | else if(pid[AliVCluster::kElectron] > wE) pdg = kElectron ; | |
669 | else if(pid[AliVCluster::kPhoton]+pid[AliVCluster::kElectron] > wPh) pdg = kPhoton ; //temporal sollution until track matching for electrons is considered | |
670 | else if(pid[AliVCluster::kPi0] > wPi0) pdg = kPi0 ; | |
477d6cee | 671 | else if(chargedHadronWeight + neutralHadronWeight > wCh) pdg = kChargedHadron ; |
672 | else if(neutralHadronWeight + chargedHadronWeight > wNe) pdg = kNeutralHadron ; | |
2007809d | 673 | else pdg = kNeutralUnknown ; |
477d6cee | 674 | } |
675 | ||
21a4b1c0 | 676 | if(fDebug > 0)printf("AliCaloPID::GetIdentifiedParticleType:Final Pdg: %d, cluster energy %2.2f \n", pdg,energy); |
1c5acb87 | 677 | |
49b5c49b | 678 | return pdg ; |
9a6fa057 | 679 | |
1c5acb87 | 680 | } |
681 | ||
3c1d9afb | 682 | //____________________________________________________________________________________________________ |
683 | Int_t AliCaloPID::GetIdentifiedParticleTypeFromClusterSplitting(AliVCluster* cluster, | |
684 | AliVCaloCells* cells, | |
685 | AliCalorimeterUtils * caloutils, | |
686 | Double_t vertex[3], | |
687 | Int_t & nMax, | |
19391b8c | 688 | Double_t & mass, Double_t & angle, |
cfdf2b91 | 689 | TLorentzVector & l1, TLorentzVector & l2, |
4914e781 | 690 | Int_t & absId1, Int_t & absId2, |
691 | Float_t & distbad1, Float_t & distbad2, | |
692 | Bool_t & fidcut1, Bool_t & fidcut2 ) | |
3c1d9afb | 693 | { |
694 | // Split the cluster in 2, do invariant mass, get the mass and decide | |
695 | // if this is a photon, pi0, eta, ... | |
696 | ||
5a72d9af | 697 | Float_t eClus = cluster->E(); |
698 | Float_t m02 = cluster->GetM02(); | |
2bf17171 | 699 | const Int_t nc = cluster->GetNCells(); |
700 | Int_t absIdList[nc]; | |
4d97a954 | 701 | Float_t maxEList [nc]; |
3c1d9afb | 702 | |
3c1d9afb | 703 | mass = -1.; |
704 | angle = -1.; | |
667432ef | 705 | |
cf7e2ca9 | 706 | //If too low number of cells, skip it |
707 | if ( nc < fSplitMinNCells) return kNeutralUnknown ; | |
708 | ||
709 | if(fDebug > 0) printf("\t pass nCells cut\n"); | |
710 | ||
3c1d9afb | 711 | // Get Number of local maxima |
5a72d9af | 712 | nMax = caloutils->GetNumberOfLocalMaxima(cluster, cells, absIdList, maxEList) ; |
3c1d9afb | 713 | |
5a72d9af | 714 | if(fDebug > 0) printf("AliCaloPID::GetIdentifiedParticleTypeFromClusterSplitting() - Cluster : E %1.1f, M02 %1.2f, NLM %d, N Cells %d\n", |
715 | eClus,m02,nMax,nc); | |
716 | ||
3c1d9afb | 717 | //--------------------------------------------------------------------- |
718 | // Get the 2 max indeces and do inv mass | |
719 | //--------------------------------------------------------------------- | |
720 | ||
19391b8c | 721 | TString calorimeter = "EMCAL"; |
722 | if(cluster->IsPHOS()) calorimeter = "PHOS"; | |
723 | ||
724 | if ( nMax == 2 ) | |
3c1d9afb | 725 | { |
726 | absId1 = absIdList[0]; | |
727 | absId2 = absIdList[1]; | |
19391b8c | 728 | |
729 | //Order in energy | |
730 | Float_t en1 = cells->GetCellAmplitude(absId1); | |
731 | caloutils->RecalibrateCellAmplitude(en1,calorimeter,absId1); | |
732 | Float_t en2 = cells->GetCellAmplitude(absId2); | |
733 | caloutils->RecalibrateCellAmplitude(en2,calorimeter,absId2); | |
734 | if(en1 < en2) | |
735 | { | |
736 | absId2 = absIdList[0]; | |
737 | absId1 = absIdList[1]; | |
738 | } | |
3c1d9afb | 739 | } |
740 | else if( nMax == 1 ) | |
741 | { | |
742 | ||
743 | absId1 = absIdList[0]; | |
744 | ||
745 | //Find second highest energy cell | |
746 | ||
3c1d9afb | 747 | Float_t enmax = 0 ; |
748 | for(Int_t iDigit = 0 ; iDigit < cluster->GetNCells() ; iDigit++) | |
749 | { | |
750 | Int_t absId = cluster->GetCellsAbsId()[iDigit]; | |
751 | if( absId == absId1 ) continue ; | |
752 | Float_t endig = cells->GetCellAmplitude(absId); | |
753 | caloutils->RecalibrateCellAmplitude(endig,calorimeter,absId); | |
754 | if(endig > enmax) | |
755 | { | |
756 | enmax = endig ; | |
757 | absId2 = absId ; | |
758 | } | |
759 | }// cell loop | |
760 | }// 1 maxima | |
761 | else | |
762 | { // n max > 2 | |
763 | // loop on maxima, find 2 highest | |
764 | ||
765 | // First max | |
766 | Float_t enmax = 0 ; | |
767 | for(Int_t iDigit = 0 ; iDigit < nMax ; iDigit++) | |
768 | { | |
769 | Float_t endig = maxEList[iDigit]; | |
770 | if(endig > enmax) | |
771 | { | |
772 | enmax = endig ; | |
773 | absId1 = absIdList[iDigit]; | |
774 | } | |
775 | }// first maxima loop | |
776 | ||
777 | // Second max | |
778 | Float_t enmax2 = 0; | |
779 | for(Int_t iDigit = 0 ; iDigit < nMax ; iDigit++) | |
780 | { | |
781 | if(absIdList[iDigit]==absId1) continue; | |
782 | Float_t endig = maxEList[iDigit]; | |
783 | if(endig > enmax2) | |
784 | { | |
785 | enmax2 = endig ; | |
786 | absId2 = absIdList[iDigit]; | |
787 | } | |
788 | }// second maxima loop | |
789 | ||
790 | } // n local maxima > 2 | |
791 | ||
cf7e2ca9 | 792 | if(absId2<0 || absId1<0) |
793 | { | |
794 | if(fDebug > 0) printf("AliCaloPID::GetIdentifiedParticleTypeFromClusterSplitting() - Bad index for local maxima : N max %d, i1 %d, i2 %d, cluster E %2.2f, ncells %d, m02 %2.2f\n", | |
795 | nMax,absId1,absId2,eClus,nc,m02); | |
796 | return kNeutralUnknown ; | |
797 | } | |
798 | ||
3c1d9afb | 799 | //--------------------------------------------------------------------- |
800 | // Split the cluster energy in 2, around the highest 2 local maxima | |
801 | //--------------------------------------------------------------------- | |
802 | ||
2bf17171 | 803 | AliAODCaloCluster cluster1(0, 0,NULL,0.,NULL,NULL,1,0); |
804 | AliAODCaloCluster cluster2(1, 0,NULL,0.,NULL,NULL,1,0); | |
3c1d9afb | 805 | |
2bf17171 | 806 | caloutils->SplitEnergy(absId1,absId2,cluster, cells, &cluster1, &cluster2,nMax); /*absIdList, maxEList,*/ |
3c1d9afb | 807 | |
4914e781 | 808 | fidcut1 = caloutils->GetEMCALRecoUtils()->CheckCellFiducialRegion(caloutils->GetEMCALGeometry(), &cluster1,cells); |
809 | fidcut2 = caloutils->GetEMCALRecoUtils()->CheckCellFiducialRegion(caloutils->GetEMCALGeometry(), &cluster2,cells); | |
810 | ||
811 | caloutils->GetEMCALRecoUtils()->RecalculateClusterDistanceToBadChannel(caloutils->GetEMCALGeometry(),cells,&cluster1); | |
812 | caloutils->GetEMCALRecoUtils()->RecalculateClusterDistanceToBadChannel(caloutils->GetEMCALGeometry(),cells,&cluster2); | |
813 | ||
814 | distbad1 = cluster1.GetDistanceToBadChannel(); | |
815 | distbad2 = cluster2.GetDistanceToBadChannel(); | |
816 | // if(!fidcut2 || !fidcut1 || distbad1 < 2 || distbad2 < 2) | |
817 | // printf("*** Dist to bad channel cl %f, cl1 %f, cl2 %f; fid cut cl %d, cl1 %d, cl2 %d \n", | |
818 | // cluster->GetDistanceToBadChannel(),distbad1,distbad2, | |
819 | // caloutils->GetEMCALRecoUtils()->CheckCellFiducialRegion(caloutils->GetEMCALGeometry(), cluster,cells),fidcut1,fidcut2); | |
820 | ||
cfdf2b91 | 821 | cluster1.GetMomentum(l1,vertex); |
822 | cluster2.GetMomentum(l2,vertex); | |
3c1d9afb | 823 | |
cfdf2b91 | 824 | mass = (l1+l2).M(); |
825 | angle = l2.Angle(l1.Vect()); | |
826 | Float_t e1 = cluster1.E(); | |
827 | Float_t e2 = cluster2.E(); | |
4914e781 | 828 | |
5a72d9af | 829 | // Consider clusters with splitted energy not too different to original cluster energy |
4d97a954 | 830 | Float_t splitFracCut = 0; |
831 | if(nMax < 3) splitFracCut = fSplitEFracMin[nMax-1]; | |
832 | else splitFracCut = fSplitEFracMin[2]; | |
833 | if((e1+e2)/eClus < splitFracCut) return kNeutralUnknown ; | |
2c36e041 | 834 | |
5a72d9af | 835 | if(fDebug > 0) printf("\t pass Split E frac cut\n"); |
2c36e041 | 836 | |
837 | // Consider sub-clusters with minimum energy | |
838 | Float_t minECut = fSubClusterEMin[2]; | |
839 | if (nMax == 2) minECut = fSubClusterEMin[1]; | |
840 | else if(nMax == 1) minECut = fSubClusterEMin[0]; | |
841 | if(e1 < minECut || e2 < minECut) | |
842 | { | |
843 | //printf("Reject: e1 %2.1f, e2 %2.1f, cut %2.1f\n",e1,e2,minECut); | |
844 | return kNeutralUnknown ; | |
845 | } | |
846 | ||
847 | if(fDebug > 0) printf("\t pass min sub-cluster E cut\n"); | |
848 | ||
667432ef | 849 | // Asymmetry of cluster |
850 | Float_t asy =-10; | |
851 | if(e1+e2 > 0) asy = (e1-e2) / (e1+e2); | |
1be44524 | 852 | |
035e250e | 853 | if( !IsInPi0SplitAsymmetryRange(eClus,asy,nMax) ) return kNeutralUnknown ; |
667432ef | 854 | |
1be44524 | 855 | |
667432ef | 856 | if (fDebug>0) printf("\t pass asymmetry cut\n"); |
5b4c2f5b | 857 | |
858 | Bool_t pi0OK = kFALSE; | |
859 | Bool_t etaOK = kFALSE; | |
860 | Bool_t conOK = kFALSE; | |
861 | ||
862 | //If too small or big M02, skip it | |
863 | if (IsInPi0M02Range(eClus,m02,nMax)) pi0OK = kTRUE; | |
864 | else if(IsInEtaM02Range(eClus,m02,nMax)) etaOK = kTRUE; | |
865 | else if(IsInConM02Range(eClus,m02,nMax)) conOK = kTRUE; | |
866 | ||
5a72d9af | 867 | // Check the mass, and set an ID to the splitted cluster |
5b4c2f5b | 868 | if ( conOK && mass < fMassPhoMax && mass > fMassPhoMin ) { if(fDebug > 0) printf("\t Split Conv \n"); return kPhoton ; } |
869 | else if( etaOK && mass < fMassEtaMax && mass > fMassEtaMin ) { if(fDebug > 0) printf("\t Split Eta \n"); return kEta ; } | |
870 | else if( pi0OK && IsInPi0SplitMassRange(cluster->E(),mass,nMax)) { if(fDebug > 0) printf("\t Split Pi0 \n"); return kPi0 ; } | |
871 | else return kNeutralUnknown ; | |
3c1d9afb | 872 | |
3c1d9afb | 873 | } |
874 | ||
49b5c49b | 875 | //_________________________________________ |
876 | TString AliCaloPID::GetPIDParametersList() | |
877 | { | |
477d6cee | 878 | //Put data member values in string to keep in output container |
879 | ||
880 | TString parList ; //this will be list of parameters used for this analysis. | |
5ae09196 | 881 | const Int_t buffersize = 255; |
882 | char onePar[buffersize] ; | |
883 | snprintf(onePar,buffersize,"--- AliCaloPID ---\n") ; | |
477d6cee | 884 | parList+=onePar ; |
49b5c49b | 885 | if(fUseBayesianWeights){ |
886 | snprintf(onePar,buffersize,"fEMCALPhotonWeight =%2.2f (EMCAL bayesian weight for photons)\n",fEMCALPhotonWeight) ; | |
887 | parList+=onePar ; | |
888 | snprintf(onePar,buffersize,"fEMCALPi0Weight =%2.2f (EMCAL bayesian weight for pi0)\n",fEMCALPi0Weight) ; | |
889 | parList+=onePar ; | |
890 | snprintf(onePar,buffersize,"fEMCALElectronWeight =%2.2f(EMCAL bayesian weight for electrons)\n",fEMCALElectronWeight) ; | |
891 | parList+=onePar ; | |
892 | snprintf(onePar,buffersize,"fEMCALChargeWeight =%2.2f (EMCAL bayesian weight for charged hadrons)\n",fEMCALChargeWeight) ; | |
893 | parList+=onePar ; | |
894 | snprintf(onePar,buffersize,"fEMCALNeutralWeight =%2.2f (EMCAL bayesian weight for neutral hadrons)\n",fEMCALNeutralWeight) ; | |
895 | parList+=onePar ; | |
896 | snprintf(onePar,buffersize,"fPHOSPhotonWeight =%2.2f (PHOS bayesian weight for photons)\n",fPHOSPhotonWeight) ; | |
897 | parList+=onePar ; | |
898 | snprintf(onePar,buffersize,"fPHOSPi0Weight =%2.2f (PHOS bayesian weight for pi0)\n",fPHOSPi0Weight) ; | |
899 | parList+=onePar ; | |
900 | snprintf(onePar,buffersize,"fPHOSElectronWeight =%2.2f(PHOS bayesian weight for electrons)\n",fPHOSElectronWeight) ; | |
901 | parList+=onePar ; | |
902 | snprintf(onePar,buffersize,"fPHOSChargeWeight =%2.2f (PHOS bayesian weight for charged hadrons)\n",fPHOSChargeWeight) ; | |
903 | parList+=onePar ; | |
904 | snprintf(onePar,buffersize,"fPHOSNeutralWeight =%2.2f (PHOS bayesian weight for neutral hadrons)\n",fPHOSNeutralWeight) ; | |
905 | parList+=onePar ; | |
906 | ||
907 | if(fPHOSWeightFormula){ | |
908 | snprintf(onePar,buffersize,"PHOS Photon Weight Formula: %s\n",fPHOSPhotonWeightFormulaExpression.Data() ) ; | |
909 | parList+=onePar; | |
910 | snprintf(onePar,buffersize,"PHOS Pi0 Weight Formula: %s\n",fPHOSPi0WeightFormulaExpression.Data() ) ; | |
911 | parList+=onePar; | |
912 | } | |
913 | } | |
914 | else { | |
915 | snprintf(onePar,buffersize,"EMCAL: fEMCALL0CutMin =%2.2f, fEMCALL0CutMax =%2.2f (Cut on Shower Shape) \n",fEMCALL0CutMin, fEMCALL0CutMax) ; | |
916 | parList+=onePar ; | |
917 | snprintf(onePar,buffersize,"EMCAL: fEMCALDEtaCut =%2.2f, fEMCALDPhiCut =%2.2f (Cut on track matching) \n",fEMCALDEtaCut, fEMCALDPhiCut) ; | |
918 | parList+=onePar ; | |
919 | snprintf(onePar,buffersize,"fTOFCut =%e (Cut on TOF, used in PID evaluation) \n",fTOFCut) ; | |
920 | parList+=onePar ; | |
921 | snprintf(onePar,buffersize,"fPHOSRCut =%2.2f, fPHOSDispersionCut =%2.2f (Cut on Shower Shape and CPV) \n",fPHOSRCut,fPHOSDispersionCut) ; | |
922 | parList+=onePar ; | |
923 | ||
a5fb4114 | 924 | } |
477d6cee | 925 | |
3c1d9afb | 926 | if(fDoClusterSplitting) |
927 | { | |
928 | snprintf(onePar,buffersize,"%2.2f< M02 < %2.2f \n", fSplitM02MinCut, fSplitM02MaxCut) ; | |
929 | parList+=onePar ; | |
930 | snprintf(onePar,buffersize,"fMinNCells =%d \n", fSplitMinNCells) ; | |
931 | parList+=onePar ; | |
932 | snprintf(onePar,buffersize,"pi0 : %2.1f < m <%2.1f\n", fMassPi0Min,fMassPi0Max); | |
933 | parList+=onePar ; | |
934 | snprintf(onePar,buffersize,"eta : %2.1f < m <%2.1f\n", fMassEtaMin,fMassEtaMax); | |
935 | parList+=onePar ; | |
936 | snprintf(onePar,buffersize,"conv: %2.1f < m <%2.1f\n", fMassPhoMin,fMassPhoMax); | |
937 | parList+=onePar ; | |
938 | } | |
939 | ||
477d6cee | 940 | return parList; |
941 | ||
1c5acb87 | 942 | } |
943 | ||
49b5c49b | 944 | //________________________________________________ |
1c5acb87 | 945 | void AliCaloPID::Print(const Option_t * opt) const |
946 | { | |
477d6cee | 947 | |
948 | //Print some relevant parameters set for the analysis | |
949 | if(! opt) | |
950 | return; | |
951 | ||
952 | printf("***** Print: %s %s ******\n", GetName(), GetTitle() ) ; | |
953 | ||
3c1d9afb | 954 | if(fUseBayesianWeights) |
955 | { | |
49b5c49b | 956 | printf("PHOS PID weight , photon %0.2f, pi0 %0.2f, e %0.2f, charge %0.2f, neutral %0.2f \n", |
3c1d9afb | 957 | fPHOSPhotonWeight, fPHOSPi0Weight, |
958 | fPHOSElectronWeight, fPHOSChargeWeight, fPHOSNeutralWeight) ; | |
49b5c49b | 959 | printf("EMCAL PID weight, photon %0.2f, pi0 %0.2f, e %0.2f, charge %0.2f, neutral %0.2f\n", |
3c1d9afb | 960 | fEMCALPhotonWeight, fEMCALPi0Weight, |
961 | fEMCALElectronWeight, fEMCALChargeWeight, fEMCALNeutralWeight) ; | |
49b5c49b | 962 | |
963 | printf("PHOS Parametrized weight on? = %d\n", fPHOSWeightFormula) ; | |
3c1d9afb | 964 | if(fPHOSWeightFormula) |
965 | { | |
49b5c49b | 966 | printf("Photon weight formula = %s\n", fPHOSPhotonWeightFormulaExpression.Data()); |
967 | printf("Pi0 weight formula = %s\n", fPHOSPi0WeightFormulaExpression .Data()); | |
968 | } | |
969 | if(fRecalculateBayesian) printf(" Recalculate bayesian with Particle Flux? = %d\n",fParticleFlux); | |
970 | } | |
3c1d9afb | 971 | else |
972 | { | |
973 | printf("TOF cut = %e\n", fTOFCut); | |
974 | printf("EMCAL Lambda0 cut min = %2.2f; max = %2.2f\n", fEMCALL0CutMin,fEMCALL0CutMax); | |
975 | printf("EMCAL cluster-track dEta < %2.3f; dPhi < %2.3f\n", fEMCALDEtaCut, fEMCALDPhiCut); | |
976 | printf("PHOS Treac matching cut =%2.2f, Dispersion Cut =%2.2f \n",fPHOSRCut, fPHOSDispersionCut) ; | |
49b5c49b | 977 | |
a5fb4114 | 978 | } |
477d6cee | 979 | |
3c1d9afb | 980 | if(fDoClusterSplitting) |
981 | { | |
982 | printf("Min. N Cells =%d \n", fSplitMinNCells) ; | |
983 | printf("%2.2f < lambda_0^2 <%2.2f \n",fSplitM02MinCut,fSplitM02MaxCut); | |
984 | printf("pi0 : %2.2f<m<%2.2f \n", fMassPi0Min,fMassPi0Max); | |
985 | printf("eta : %2.2f<m<%2.2f \n", fMassEtaMin,fMassEtaMax); | |
986 | printf("phot: %2.2f<m<%2.2f \n", fMassPhoMin,fMassPhoMax); | |
987 | } | |
988 | ||
477d6cee | 989 | printf(" \n"); |
990 | ||
1c5acb87 | 991 | } |
992 | ||
3c1d9afb | 993 | //_________________________________________________________________ |
994 | void AliCaloPID::PrintClusterPIDWeights(const Double_t * pid) const | |
995 | { | |
996 | // print PID of cluster, (AliVCluster*)cluster->GetPID() | |
997 | ||
c2791479 | 998 | printf("AliCaloPID::PrintClusterPIDWeights() \n \t ph %0.2f, pi0 %0.2f, el %0.2f, conv el %0.2f, \n \t \ |
3c1d9afb | 999 | pion %0.2f, kaon %0.2f, proton %0.2f , neutron %0.2f, kaon %0.2f \n", |
1000 | pid[AliVCluster::kPhoton], pid[AliVCluster::kPi0], | |
1001 | pid[AliVCluster::kElectron], pid[AliVCluster::kEleCon], | |
1002 | pid[AliVCluster::kPion], pid[AliVCluster::kKaon], | |
1003 | pid[AliVCluster::kProton], | |
1004 | pid[AliVCluster::kNeutron], pid[AliVCluster::kKaon0]); | |
1005 | ||
1006 | } | |
1007 | ||
49b5c49b | 1008 | //___________________________________________________________________________ |
3c1d9afb | 1009 | void AliCaloPID::SetPIDBits(AliVCluster * cluster, |
49b5c49b | 1010 | AliAODPWG4Particle * ph, AliCalorimeterUtils* cu, |
1011 | AliVEvent* event) | |
1012 | { | |
477d6cee | 1013 | //Set Bits for PID selection |
1014 | ||
1015 | //Dispersion/lambdas | |
5ae09196 | 1016 | //Double_t disp= cluster->GetDispersion() ; |
1017 | Double_t l1 = cluster->GetM20() ; | |
1018 | Double_t l0 = cluster->GetM02() ; | |
1019 | Bool_t isDispOK = kTRUE ; | |
9a6fa057 | 1020 | if(cluster->IsPHOS()){ |
49b5c49b | 1021 | if(TestPHOSDispersion(ph->Pt(),l0,l1) < fPHOSDispersionCut) isDispOK = kTRUE; |
1022 | else isDispOK = kFALSE; | |
5ae09196 | 1023 | } |
1024 | else{//EMCAL | |
1025 | ||
49b5c49b | 1026 | if(l0 > fEMCALL0CutMin && l0 < fEMCALL0CutMax) isDispOK = kTRUE; |
1027 | ||
5ae09196 | 1028 | } |
1029 | ||
1030 | ph->SetDispBit(isDispOK) ; | |
477d6cee | 1031 | |
1032 | //TOF | |
1033 | Double_t tof=cluster->GetTOF() ; | |
1034 | ph->SetTOFBit(TMath::Abs(tof)<fTOFCut) ; | |
1035 | ||
49b5c49b | 1036 | //Charged |
1037 | Bool_t isNeutral = IsTrackMatched(cluster,cu,event); | |
5ae09196 | 1038 | |
1039 | ph->SetChargedBit(isNeutral); | |
477d6cee | 1040 | |
1041 | //Set PID pdg | |
3c1d9afb | 1042 | ph->SetIdentifiedParticleType(GetIdentifiedParticleType(cluster)); |
477d6cee | 1043 | |
5a72d9af | 1044 | if(fDebug > 0) |
1045 | { | |
5ae09196 | 1046 | printf("AliCaloPID::SetPIDBits: TOF %e, Lambda0 %2.2f, Lambda1 %2.2f\n",tof , l0, l1); |
477d6cee | 1047 | printf("AliCaloPID::SetPIDBits: pdg %d, bits: TOF %d, Dispersion %d, Charge %d\n", |
49b5c49b | 1048 | ph->GetIdentifiedParticleType(), ph->GetTOFBit() , ph->GetDispBit() , ph->GetChargedBit()); |
477d6cee | 1049 | } |
1c5acb87 | 1050 | } |
1051 | ||
09273901 | 1052 | //_________________________________________________________ |
49b5c49b | 1053 | Bool_t AliCaloPID::IsTrackMatched(AliVCluster* cluster, |
1054 | AliCalorimeterUtils * cu, | |
1055 | AliVEvent* event) const | |
1056 | { | |
5ae09196 | 1057 | //Check if there is any track attached to this cluster |
1058 | ||
1059 | Int_t nMatches = cluster->GetNTracksMatched(); | |
49b5c49b | 1060 | AliVTrack * track = 0; |
1061 | Double_t p[3]; | |
1062 | ||
44443bbd | 1063 | if(nMatches > 0) |
1064 | { | |
49b5c49b | 1065 | //In case of ESDs, by default without match one entry with negative index, no match, reject. |
1066 | if(!strcmp("AliESDCaloCluster",Form("%s",cluster->ClassName()))) | |
1067 | { | |
1068 | Int_t iESDtrack = cluster->GetTrackMatchedIndex(); | |
1069 | if(iESDtrack >= 0) track = dynamic_cast<AliVTrack*> (event->GetTrack(iESDtrack)); | |
1070 | else return kFALSE; | |
d39cba7e | 1071 | |
44443bbd | 1072 | if (!track) |
1073 | { | |
1074 | if(fDebug > 0) printf("AliCaloPID::IsTrackMatched() - Null matched track in ESD when index is OK!\n"); | |
49b5c49b | 1075 | return kFALSE; |
1076 | } | |
1077 | } | |
1078 | else { // AOD | |
1079 | track = dynamic_cast<AliVTrack*> (cluster->GetTrackMatched(0)); | |
44443bbd | 1080 | if (!track) |
1081 | { | |
1082 | if(fDebug > 0) printf("AliCaloPID::IsTrackMatched() - Null matched track in AOD!\n"); | |
49b5c49b | 1083 | return kFALSE; |
c76f0089 | 1084 | } |
d39cba7e | 1085 | } |
5ae09196 | 1086 | |
49b5c49b | 1087 | Float_t dZ = cluster->GetTrackDz(); |
1088 | Float_t dR = cluster->GetTrackDx(); | |
1089 | ||
1090 | // if track matching was recalculated | |
44443bbd | 1091 | if(cluster->IsEMCAL() && cu && cu->IsRecalculationOfClusterTrackMatchingOn()) |
1092 | { | |
49b5c49b | 1093 | dR = 2000., dZ = 2000.; |
31ae6d59 | 1094 | cu->GetEMCALRecoUtils()->GetMatchedResiduals(cluster->GetID(),dZ,dR); |
49b5c49b | 1095 | } |
09273901 | 1096 | |
44443bbd | 1097 | if(cluster->IsPHOS()) |
1098 | { | |
49b5c49b | 1099 | track->GetPxPyPz(p) ; |
1100 | TLorentzVector trackmom(p[0],p[1],p[2],0); | |
1101 | Int_t charge = track->Charge(); | |
1102 | Double_t mf = event->GetMagneticField(); | |
1103 | if(TestPHOSChargedVeto(dR, dZ, trackmom.Pt(), charge, mf ) < fPHOSRCut) return kTRUE; | |
1104 | else return kFALSE; | |
1105 | ||
1106 | }//PHOS | |
5a72d9af | 1107 | else //EMCAL |
1108 | { | |
1109 | if(fDebug > 1) | |
49b5c49b | 1110 | printf("AliCaloPID::IsTrackMatched - EMCAL dR %f < %f, dZ %f < %f \n",dR, fEMCALDPhiCut, dZ, fEMCALDEtaCut); |
1111 | ||
1112 | if(TMath::Abs(dR) < fEMCALDPhiCut && | |
1113 | TMath::Abs(dZ) < fEMCALDEtaCut) return kTRUE; | |
1114 | else return kFALSE; | |
1115 | ||
1116 | }//EMCAL cluster | |
1117 | ||
1118 | ||
1119 | } // more than 1 match, at least one track in array | |
1120 | else return kFALSE; | |
1121 | ||
1122 | } | |
1123 | ||
1124 | //___________________________________________________________________________________________________ | |
1125 | Float_t AliCaloPID::TestPHOSDispersion(const Double_t pt, const Double_t l1, const Double_t l2) const | |
1126 | { | |
1127 | //Check if cluster photon-like. Uses photon cluster parameterization in real pp data | |
1128 | //Returns distance in sigmas. Recommended cut 2.5 | |
1129 | ||
1130 | Double_t l2Mean = 1.53126+9.50835e+06/(1.+1.08728e+07*pt+1.73420e+06*pt*pt) ; | |
1131 | Double_t l1Mean = 1.12365+0.123770*TMath::Exp(-pt*0.246551)+5.30000e-03*pt ; | |
1132 | Double_t l2Sigma = 6.48260e-02+7.60261e+10/(1.+1.53012e+11*pt+5.01265e+05*pt*pt)+9.00000e-03*pt; | |
1133 | Double_t l1Sigma = 4.44719e-04+6.99839e-01/(1.+1.22497e+00*pt+6.78604e-07*pt*pt)+9.00000e-03*pt; | |
1134 | Double_t c =-0.35-0.550*TMath::Exp(-0.390730*pt) ; | |
f3138ecf | 1135 | Double_t r2 = 0.5* (l1-l1Mean)*(l1-l1Mean)/l1Sigma/l1Sigma + |
49b5c49b | 1136 | 0.5* (l2-l2Mean)*(l2-l2Mean)/l2Sigma/l2Sigma + |
1137 | 0.5*c*(l1-l1Mean)*(l2-l2Mean)/l1Sigma/l2Sigma ; | |
1138 | ||
f3138ecf | 1139 | if(fDebug > 0) printf("AliCaloPID::TestPHOSDispersion() - PHOS SS R %f < %f?\n", TMath::Sqrt(r2), fPHOSDispersionCut); |
5ae09196 | 1140 | |
f3138ecf | 1141 | return TMath::Sqrt(r2) ; |
5ae09196 | 1142 | |
1143 | } | |
1144 | ||
49b5c49b | 1145 | //_______________________________________________________________________________________________ |
1146 | Float_t AliCaloPID::TestPHOSChargedVeto(const Double_t dx, const Double_t dz, const Double_t pt, | |
1147 | const Int_t charge, const Double_t mf) const | |
1148 | { | |
1149 | //Checks distance to the closest track. Takes into account | |
1150 | //non-perpendicular incidence of tracks. | |
1151 | //returns distance in sigmas. Recommended cut: 2. | |
1152 | //Requires (sign) of magnetic filed. onc can find it for example as following | |
1153 | // Double_t mf=0. ; | |
1154 | // AliESDEvent *event = dynamic_cast<AliESDEvent*>(InputEvent()); | |
1155 | // if(event) | |
1156 | // mf = event->GetMagneticField(); //Positive for ++ and negative for -- | |
1157 | ||
1158 | ||
1159 | Double_t meanX = 0.; | |
1160 | Double_t meanZ = 0.; | |
1161 | Double_t sx = TMath::Min(5.4,2.59719e+02*TMath::Exp(-pt/1.02053e-01)+ | |
1162 | 6.58365e-01*5.91917e-01*5.91917e-01/((pt-9.61306e-01)*(pt-9.61306e-01)+5.91917e-01*5.91917e-01)+ | |
1163 | 1.59219); | |
1164 | Double_t sz = TMath::Min(2.75,4.90341e+02*1.91456e-02*1.91456e-02/(pt*pt+1.91456e-02*1.91456e-02)+ | |
1165 | 1.60) ; | |
1166 | ||
1167 | if(mf<0.){ //field -- | |
1168 | meanZ = -0.468318 ; | |
1169 | if(charge>0) | |
1170 | meanX = TMath::Min(7.3, 3.89994*1.20679 *1.20679 /(pt*pt+1.20679*1.20679)+ | |
1171 | 0.249029+2.49088e+07*TMath::Exp(-pt*3.33650e+01)) ; | |
1172 | else | |
1173 | meanX =-TMath::Min(7.7, 3.86040*0.912499*0.912499/(pt*pt+0.912499*0.912499)+ | |
1174 | 1.23114 +4.48277e+05*TMath::Exp(-pt*2.57070e+01)) ; | |
1175 | } | |
1176 | else{ //Field ++ | |
1177 | meanZ = -0.468318; | |
1178 | if(charge>0) | |
1179 | meanX =-TMath::Min(8.0,3.86040*1.31357*1.31357/(pt*pt+1.31357*1.31357)+ | |
1180 | 0.880579+7.56199e+06*TMath::Exp(-pt*3.08451e+01)) ; | |
1181 | else | |
1182 | meanX = TMath::Min(6.85, 3.89994*1.16240*1.16240/(pt*pt+1.16240*1.16240)- | |
1183 | 0.120787+2.20275e+05*TMath::Exp(-pt*2.40913e+01)) ; | |
1184 | } | |
9a6fa057 | 1185 | |
49b5c49b | 1186 | Double_t rz = (dz-meanZ)/sz ; |
1187 | Double_t rx = (dx-meanX)/sx ; | |
9a6fa057 | 1188 | |
49b5c49b | 1189 | if(fDebug > 0) |
1190 | printf("AliCaloPID::TestPHOSDispersion() - PHOS Matching R %f < %f\n",TMath::Sqrt(rx*rx+rz*rz), fPHOSRCut); | |
9a6fa057 | 1191 | |
49b5c49b | 1192 | return TMath::Sqrt(rx*rx+rz*rz) ; |
9a6fa057 | 1193 | |
1194 | } |