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1c5acb87 | 1 | #ifndef ALICALOPID_H |
2 | #define ALICALOPID_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
1c5acb87 | 5 | |
6 | //_________________________________________________________________________ | |
bdd2a262 | 7 | // Class for PID selection with calorimeters |
49b5c49b | 8 | // The Output of the main method GetIdentifiedParticleType is a PDG number identifying the cluster, |
bdd2a262 | 9 | // being kPhoton, kElectron, kPi0 ... as defined in the header file |
49b5c49b | 10 | // - GetIdentifiedParticleType(const TString calo, const TLorentzVector mom, const AliVCluster * cluster) |
11 | // Assignes a PID tag to the cluster, right now there is the possibility to : use bayesian weights from reco, | |
12 | // recalculate them (EMCAL) or use other procedures not used in reco. | |
bdd2a262 | 13 | // In order to recalculate Bayesian, it is necessary to load the EMCALUtils library |
14 | // and do SwitchOnBayesianRecalculation(). | |
15 | // To change the PID parameters from Low to High like the ones by default, use the constructor | |
16 | // AliCaloPID(flux) | |
17 | // where flux is AliCaloPID::kLow or AliCaloPID::kHigh | |
18 | // If it is necessary to change the parameters use the constructor | |
19 | // AliCaloPID(AliEMCALPIDUtils *utils) and set the parameters before. | |
49b5c49b | 20 | |
21 | // - GetGetIdentifiedParticleTypeFromBayesian(const TString calo, const Double_t * pid, const Float_t energy) | |
22 | // Reads the PID weights array of the ESDs and depending on its magnitude identifies the particle, | |
23 | // executed when bayesian is ON by GetIdentifiedParticleType(const TString calo, const TLorentzVector mom, const AliVCluster * cluster) | |
9a6fa057 | 24 | // - SetPIDBits: Simple PID, depending on the thresholds fLOCut fTOFCut and even the |
bdd2a262 | 25 | // result of the PID bayesian a different PID bit is set. |
26 | // | |
1c5acb87 | 27 | // |
28 | //*-- Author: Gustavo Conesa (INFN-LNF) | |
29 | ||
30 | // --- ROOT system --- | |
31 | #include <TObject.h> | |
32 | class TString ; | |
33 | class TLorentzVector ; | |
a5fb4114 | 34 | #include <TFormula.h> |
f21fc003 | 35 | class TList; |
d39cba7e | 36 | class TH2F ; |
1c5acb87 | 37 | |
38 | //--- AliRoot system --- | |
0ae57829 | 39 | class AliVCluster; |
1c5acb87 | 40 | class AliAODPWG4Particle; |
c5693f62 | 41 | class AliEMCALPIDUtils; |
f2ccb5b8 | 42 | class AliCalorimeterUtils; |
49b5c49b | 43 | class AliVEvent; |
1c5acb87 | 44 | |
45 | class AliCaloPID : public TObject { | |
46 | ||
477d6cee | 47 | public: |
48 | ||
49 | AliCaloPID() ; // ctor | |
bdd2a262 | 50 | AliCaloPID(const Int_t particleFlux) ; // ctor, to be used when recalculating bayesian PID |
f21fc003 | 51 | AliCaloPID(const TNamed * emcalpid) ; // ctor, to be used when recalculating bayesian PID and need different parameters |
477d6cee | 52 | virtual ~AliCaloPID() ;//virtual dtor |
c5693f62 | 53 | |
477d6cee | 54 | enum PidType { |
a5fb4114 | 55 | kPhoton = 22, |
56 | kPi0 = 111, | |
57 | kEta = 221, | |
58 | kElectron = 11, | |
59 | kEleCon =-11, | |
60 | kNeutralHadron = 2112, | |
61 | kChargedHadron = 211, | |
477d6cee | 62 | kNeutralUnknown = 130, |
a5fb4114 | 63 | kChargedUnknown = 321 |
477d6cee | 64 | }; |
65 | ||
66 | enum TagType {kPi0Decay, kEtaDecay, kOtherDecay, kConversion, kNoTag = -1}; | |
67 | ||
49b5c49b | 68 | // Main methods |
69 | ||
a5fb4114 | 70 | TList * GetCreateOutputObjects(); |
d39cba7e | 71 | |
a5fb4114 | 72 | void InitParameters(); |
9a6fa057 | 73 | |
49b5c49b | 74 | Int_t GetIdentifiedParticleTypeFromBayesWeights(const TString calo, const Double_t * pid, const Float_t energy) ; |
477d6cee | 75 | |
bbb09837 | 76 | Int_t GetIdentifiedParticleType(const TString calo, const TLorentzVector mom, const AliVCluster * cluster) ; |
477d6cee | 77 | |
9a6fa057 | 78 | TString GetPIDParametersList(); |
477d6cee | 79 | |
49b5c49b | 80 | Bool_t IsTrackMatched(AliVCluster * cluster, AliCalorimeterUtils* cu, AliVEvent* event) const ; |
81 | ||
82 | void SetPIDBits(const TString calo, AliVCluster * cluster, AliAODPWG4Particle *aodph, | |
83 | AliCalorimeterUtils* cu, AliVEvent* event); | |
477d6cee | 84 | |
a5fb4114 | 85 | void Print(const Option_t * opt)const; |
86 | ||
49b5c49b | 87 | //Check if cluster photon-like. Uses photon cluster parameterization in real pp data |
88 | //Returns distance in sigmas. Recommended cut 2.5 | |
89 | Float_t TestPHOSDispersion(const Double_t pt, const Double_t m20, const Double_t m02) const ; | |
90 | //Checks distance to the closest track. Takes into account | |
91 | //non-perpendicular incidence of tracks. | |
92 | Float_t TestPHOSChargedVeto(const Double_t dx, const Double_t dz, const Double_t ptTrack, | |
93 | const Int_t chargeTrack, const Double_t mf) const ; | |
94 | ||
95 | // Setters, getters | |
96 | ||
97 | void SetDebug(Int_t deb) { fDebug = deb ; } | |
98 | Int_t GetDebug() const { return fDebug ; } | |
99 | ||
100 | enum eventType{kLow,kHigh}; | |
101 | void SetLowParticleFlux() { fParticleFlux = kLow ; } | |
102 | void SetHighParticleFlux() { fParticleFlux = kHigh ; } | |
103 | // not really used, only for bayesian recalculation in EMCAL, but could be useful in future | |
104 | ||
105 | // Bayesian | |
106 | ||
107 | void SwitchOnBayesian() { fUseBayesianWeights = kTRUE ; } | |
108 | void SwitchOffBayesian() { fUseBayesianWeights = kFALSE; } | |
109 | void SwitchOnBayesianRecalculation() { fRecalculateBayesian = kTRUE ; fUseBayesianWeights = kTRUE ;} // EMCAL | |
110 | void SwitchOffBayesianRecalculation() { fRecalculateBayesian = kFALSE; } // EMCAL | |
111 | ||
c5693f62 | 112 | AliEMCALPIDUtils * GetEMCALPIDUtils() ; |
477d6cee | 113 | |
114 | //Weight getters | |
49b5c49b | 115 | Float_t GetEMCALPhotonWeight() const { return fEMCALPhotonWeight ; } |
116 | Float_t GetEMCALPi0Weight() const { return fEMCALPi0Weight ; } | |
117 | Float_t GetEMCALElectronWeight() const { return fEMCALElectronWeight ; } | |
118 | Float_t GetEMCALChargeWeight() const { return fEMCALChargeWeight ; } | |
119 | Float_t GetEMCALNeutralWeight() const { return fEMCALNeutralWeight ; } | |
120 | Float_t GetPHOSPhotonWeight() const { return fPHOSPhotonWeight ; } | |
121 | Float_t GetPHOSPi0Weight() const { return fPHOSPi0Weight ; } | |
122 | Float_t GetPHOSElectronWeight() const { return fPHOSElectronWeight ; } | |
123 | Float_t GetPHOSChargeWeight() const { return fPHOSChargeWeight ; } | |
124 | Float_t GetPHOSNeutralWeight() const { return fPHOSNeutralWeight ; } | |
125 | ||
126 | Bool_t IsPHOSPIDWeightFormulaOn() const { return fPHOSWeightFormula ; } | |
127 | ||
128 | TFormula * GetPHOSPhotonWeightFormula() { | |
a5fb4114 | 129 | if(!fPHOSPhotonWeightFormula) |
130 | fPHOSPhotonWeightFormula = new TFormula("phos_photon_weight", | |
131 | fPHOSPhotonWeightFormulaExpression); | |
49b5c49b | 132 | return fPHOSPhotonWeightFormula ; } |
477d6cee | 133 | |
49b5c49b | 134 | TFormula * GetPHOSPi0WeightFormula() { |
a5fb4114 | 135 | if(!fPHOSPi0WeightFormula) |
136 | fPHOSPi0WeightFormula = new TFormula("phos_pi0_weight", | |
137 | fPHOSPi0WeightFormulaExpression); | |
49b5c49b | 138 | return fPHOSPi0WeightFormula ; } |
5ae09196 | 139 | |
49b5c49b | 140 | TString GetPHOSPhotonWeightFormulaExpression() const { return fPHOSPhotonWeightFormulaExpression ; } |
141 | TString GetPHOSPi0WeightFormulaExpression() const { return fPHOSPi0WeightFormulaExpression ; } | |
5ae09196 | 142 | |
a5fb4114 | 143 | //Weight setters |
49b5c49b | 144 | void SetEMCALPhotonWeight (Float_t w) { fEMCALPhotonWeight = w ; } |
145 | void SetEMCALPi0Weight (Float_t w) { fEMCALPi0Weight = w ; } | |
146 | void SetEMCALElectronWeight(Float_t w) { fEMCALElectronWeight = w ; } | |
147 | void SetEMCALChargeWeight (Float_t w) { fEMCALChargeWeight = w ; } | |
148 | void SetEMCALNeutralWeight (Float_t w) { fEMCALNeutralWeight = w ; } | |
149 | void SetPHOSPhotonWeight (Float_t w) { fPHOSPhotonWeight = w ; } | |
150 | void SetPHOSPi0Weight (Float_t w) { fPHOSPi0Weight = w ; } | |
151 | void SetPHOSElectronWeight (Float_t w) { fPHOSElectronWeight = w ; } | |
152 | void SetPHOSChargeWeight (Float_t w) { fPHOSChargeWeight = w ; } | |
153 | void SetPHOSNeutralWeight (Float_t w) { fPHOSNeutralWeight = w ; } | |
154 | ||
155 | void UsePHOSPIDWeightFormula (Bool_t ok ) { fPHOSWeightFormula = ok ; } | |
156 | void SetPHOSPhotonWeightFormulaExpression(TString ph) { fPHOSPhotonWeightFormulaExpression = ph ; } | |
157 | void SetPHOSPi0WeightFormulaExpression (TString pi) { fPHOSPi0WeightFormulaExpression = pi ; } | |
d39cba7e | 158 | |
49b5c49b | 159 | //PID cuts |
d39cba7e | 160 | |
49b5c49b | 161 | void SetEMCALLambda0CutMax(Float_t lcut ) { fEMCALL0CutMax = lcut ; } |
162 | Float_t GetEMCALLambda0CutMax() const { return fEMCALL0CutMax ; } | |
163 | ||
164 | void SetEMCALLambda0CutMin(Float_t lcut ) { fEMCALL0CutMin = lcut ; } | |
165 | Float_t GetEMCALLambda0CutMin() const { return fEMCALL0CutMin ; } | |
166 | ||
167 | void SetEMCALDEtaCut(Float_t dcut ) { fEMCALDEtaCut = dcut ; } | |
168 | Float_t GetEMCALDEtaCut() const { return fEMCALDEtaCut ; } | |
169 | ||
170 | void SetEMCALDPhiCut(Float_t dcut ) { fEMCALDPhiCut = dcut ; } | |
171 | Float_t GetEMCALDPhiCut() const { return fEMCALDPhiCut ; } | |
172 | ||
173 | void SetTOFCut(Float_t tcut ) { fTOFCut = tcut ; } | |
174 | Float_t GetTOFCut() const { return fTOFCut ; } | |
175 | ||
176 | void SetPHOSRCut(Float_t rcut ) { fPHOSRCut = rcut ; } | |
177 | Float_t GetPHOSRCut() const { return fPHOSRCut ; } | |
a5fb4114 | 178 | |
49b5c49b | 179 | void SetPHOSDispersionCut(Float_t dcut ) { fPHOSDispersionCut = dcut ; } |
180 | Float_t GetPHOSDispersionCut() const { return fPHOSDispersionCut ; } | |
181 | ||
d39cba7e | 182 | |
f2ccb5b8 | 183 | private: |
477d6cee | 184 | |
49b5c49b | 185 | Int_t fDebug; // Debug level |
186 | Int_t fParticleFlux; // Particle flux for setting PID parameters | |
187 | ||
188 | // Bayesian | |
189 | AliEMCALPIDUtils * fEMCALPIDUtils; // Pointer to EMCALPID to redo the PID Bayesian calculation | |
190 | Bool_t fUseBayesianWeights; // Select clusters based on weights calculated in reconstruction | |
191 | Bool_t fRecalculateBayesian; // Recalculate PID bayesian or use simple PID? | |
192 | ||
193 | Float_t fEMCALPhotonWeight; // Bayesian PID weight for photons in EMCAL | |
194 | Float_t fEMCALPi0Weight; // Bayesian PID weight for pi0 in EMCAL | |
195 | Float_t fEMCALElectronWeight; // Bayesian PID weight for electrons in EMCAL | |
196 | Float_t fEMCALChargeWeight; // Bayesian PID weight for charged hadrons in EMCAL | |
197 | Float_t fEMCALNeutralWeight; // Bayesian PID weight for neutral hadrons in EMCAL | |
198 | Float_t fPHOSPhotonWeight; // Bayesian PID weight for photons in PHOS | |
199 | Float_t fPHOSPi0Weight; // Bayesian PID weight for pi0 in PHOS | |
200 | Float_t fPHOSElectronWeight; // Bayesian PID weight for electrons in PHOS | |
201 | Float_t fPHOSChargeWeight; // Bayesian PID weight for charged hadrons in PHOS | |
202 | Float_t fPHOSNeutralWeight; // Bayesian PID weight for neutral hadrons in PHOS | |
a5fb4114 | 203 | |
9a6fa057 | 204 | Bool_t fPHOSWeightFormula ; // Use parametrized weight threshold, function of energy |
205 | TFormula *fPHOSPhotonWeightFormula ; // Formula for photon weight | |
206 | TFormula *fPHOSPi0WeightFormula ; // Formula for pi0 weight | |
a5fb4114 | 207 | TString fPHOSPhotonWeightFormulaExpression; // Photon weight formula in string |
208 | TString fPHOSPi0WeightFormulaExpression; // Pi0 weight formula in string | |
209 | ||
49b5c49b | 210 | // PID calculation |
211 | Float_t fEMCALL0CutMax; // Max Cut on shower shape lambda0, used in PID evaluation, only EMCAL | |
212 | Float_t fEMCALL0CutMin; // Min Cut on shower shape lambda0, used in PID evaluation, only EMCAL | |
213 | Float_t fEMCALDEtaCut; // Track matching cut on Dz | |
214 | Float_t fEMCALDPhiCut; // Track matching cut on Dx | |
ae182e60 | 215 | |
49b5c49b | 216 | Float_t fTOFCut; // Cut on TOF, used in PID evaluation |
217 | ||
218 | Float_t fPHOSDispersionCut; // Shower shape elipse radious cut | |
219 | Float_t fPHOSRCut; // Track-Cluster distance cut for track matching in PHOS | |
49b5c49b | 220 | |
c5693f62 | 221 | AliCaloPID & operator = (const AliCaloPID & g) ; // cpy assignment |
09273901 | 222 | AliCaloPID( const AliCaloPID & g) ; // cpy ctor |
c5693f62 | 223 | |
09273901 | 224 | ClassDef(AliCaloPID,11) |
e5dbdaf0 | 225 | } ; |
1c5acb87 | 226 | |
227 | ||
228 | #endif //ALICALOPID_H | |
229 | ||
230 | ||
231 |