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8c1c76e9 | 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 | // Class for Bayesian PID | |
17 | // Implements the abstract base class AliHFEpidBase | |
18 | // | |
19 | // Class contains Bayesian specific cuts and QA histograms | |
20 | // several detectors added for combined PID | |
21 | // | |
22 | // | |
23 | // Authors: | |
24 | // | |
25 | // Yvonne Pachmayer <pachmay@physi.uni-heidelberg.de> | |
26 | // | |
27 | #include <TF1.h> | |
28 | #include <TMath.h> | |
29 | ||
30 | #include "AliAODPid.h" | |
31 | #include "AliAODTrack.h" | |
32 | #include "AliAODMCParticle.h" | |
33 | #include "AliESDtrack.h" | |
34 | #include "AliExternalTrackParam.h" | |
35 | #include "AliLog.h" | |
36 | #include "AliMCParticle.h" | |
37 | #include "AliPID.h" | |
38 | #include "AliPIDResponse.h" | |
39 | #include "AliPIDCombined.h" | |
40 | ||
41 | #include "AliHFEpidTPC.h" | |
42 | #include "AliHFEpidTOF.h" | |
43 | #include "AliHFEpidTRD.h" | |
44 | #include "AliHFEpidBayes.h" | |
45 | #include "AliHFEpidQAmanager.h" | |
46 | ||
47 | ClassImp(AliHFEpidBayes) | |
48 | ||
49 | //___________________________________________________________________ | |
50 | AliHFEpidBayes::AliHFEpidBayes() : | |
51 | // add a list here | |
52 | AliHFEpidBase() | |
53 | , fPIDCombined(NULL) | |
54 | , fDetMask(10) | |
55 | , fDetMaskDefault(10) | |
56 | , fDetMaskDefaultandTRD(14) | |
57 | , fpidthres(0.9) | |
58 | { | |
59 | // | |
60 | // default constructor | |
61 | // | |
62 | ||
63 | ||
64 | } | |
65 | ||
66 | //___________________________________________________________________ | |
67 | AliHFEpidBayes::AliHFEpidBayes(const char* name) : | |
68 | // add a list here | |
69 | AliHFEpidBase(name) | |
70 | , fPIDCombined(NULL) | |
71 | , fDetMask(10) | |
72 | , fDetMaskDefault(10) | |
73 | , fDetMaskDefaultandTRD(14) | |
74 | , fpidthres(0.9) | |
75 | { | |
76 | // | |
77 | // default constructor | |
78 | // | |
79 | // | |
80 | ||
81 | } | |
82 | ||
83 | //____________________________________________________________ | |
84 | AliHFEpidBayes::AliHFEpidBayes(const AliHFEpidBayes &ref): | |
85 | AliHFEpidBase("") | |
86 | , fPIDCombined(NULL) | |
87 | , fDetMask(10) | |
88 | , fDetMaskDefault(10) | |
89 | , fDetMaskDefaultandTRD(14) | |
90 | , fpidthres(0.9) | |
91 | { | |
92 | // | |
93 | // Copy constructor | |
94 | // | |
95 | ref.Copy(*this); | |
96 | } | |
97 | ||
98 | //____________________________________________________________ | |
99 | AliHFEpidBayes &AliHFEpidBayes::operator=(const AliHFEpidBayes &ref){ | |
100 | // | |
101 | // Make assignment | |
102 | // | |
103 | if(this != &ref){ | |
104 | ref.Copy(*this); | |
105 | } | |
106 | return *this; | |
107 | } | |
108 | ||
109 | //___________________________________________________________________ | |
110 | AliHFEpidBayes::~AliHFEpidBayes(){ | |
111 | // | |
112 | // Destructor | |
113 | // | |
114 | } | |
115 | ||
116 | //___________________________________________________________________ | |
117 | void AliHFEpidBayes::Copy(TObject &ref) const { | |
118 | // | |
119 | // Performs the copying of the object | |
120 | // | |
121 | AliHFEpidBayes &target = dynamic_cast<AliHFEpidBayes &>(ref); | |
122 | ||
123 | target.fPIDCombined = fPIDCombined; | |
124 | target.fDetMask = fDetMask; | |
125 | target.fDetMaskDefault = fDetMaskDefault; | |
126 | target.fDetMaskDefaultandTRD = fDetMaskDefaultandTRD; | |
127 | target.fpidthres = fpidthres; | |
128 | ||
129 | AliHFEpidBase::Copy(ref); | |
130 | ||
131 | } | |
132 | ||
133 | //___________________________________________________________________ | |
134 | Bool_t AliHFEpidBayes::InitializePID(Int_t /*run*/){ | |
135 | // | |
136 | // Initialize Bayes PID | |
137 | // | |
138 | ||
139 | fPIDCombined=new AliPIDCombined; | |
140 | fDetMaskDefault=AliPIDResponse::kDetTPC+AliPIDResponse::kDetTOF; | |
141 | fDetMaskDefaultandTRD=AliPIDResponse::kDetTPC+AliPIDResponse::kDetTOF+AliPIDResponse::kDetTRD; | |
142 | return kTRUE; | |
143 | } | |
144 | ||
145 | //___________________________________________________________________ | |
146 | Int_t AliHFEpidBayes::IsSelected(const AliHFEpidObject *track, AliHFEpidQAmanager *pidqa) const | |
147 | { | |
148 | // | |
149 | // identification of electrons via Bayes pid | |
150 | // | |
151 | ||
152 | if(pidqa) pidqa->ProcessTrack(track, AliHFEpid::kBAYESpid, AliHFEdetPIDqa::kBeforePID); | |
153 | AliDebug(1, "Doing Bayes PID based"); | |
154 | ||
155 | if (!fkPIDResponse) | |
156 | { | |
157 | AliFatal("This Task needs the PID response attached to the inputHandler"); | |
158 | return 0; | |
159 | } | |
160 | ||
161 | Bool_t used=kFALSE; | |
162 | Bool_t usedTOF=kFALSE; | |
163 | Bool_t usedTPC=kFALSE; | |
164 | Bool_t usedTRD=kFALSE; | |
165 | ||
166 | ||
167 | ||
168 | if((fDetMask==fDetMaskDefault)||(fDetMask==fDetMaskDefaultandTRD)) | |
169 | { | |
170 | Double_t probTPC[AliPID::kSPECIES]={0.}; | |
aa1417ee | 171 | usedTPC = fkPIDResponse->ComputePIDProbability(AliPIDResponse::kDetTPC,(AliVTrack*)track->GetRecTrack(),AliPID::kSPECIES,probTPC) == AliPIDResponse::kDetPidOk; |
8c1c76e9 | 172 | Double_t probTOF[AliPID::kSPECIES]={0.}; |
aa1417ee | 173 | usedTOF = fkPIDResponse->ComputePIDProbability(AliPIDResponse::kDetTOF,(AliVTrack*)track->GetRecTrack(),AliPID::kSPECIES,probTOF) == AliPIDResponse::kDetPidOk; |
8c1c76e9 | 174 | if((usedTOF==1)&&(usedTPC==1)) used=1; |
175 | else used=0; | |
176 | ||
177 | if(fDetMask==fDetMaskDefaultandTRD) | |
178 | { | |
179 | Double_t probTRD[AliPID::kSPECIES]={0.}; | |
aa1417ee | 180 | usedTRD = fkPIDResponse->ComputePIDProbability(AliPIDResponse::kDetTRD,(AliVTrack*)track->GetRecTrack(),AliPID::kSPECIES,probTRD) == AliPIDResponse::kDetPidOk; |
8c1c76e9 | 181 | if((usedTOF==1)&&(usedTPC==1)&&(usedTRD==1)) used=1; |
182 | else used=0; | |
183 | } | |
184 | } | |
185 | ||
186 | ||
187 | ||
188 | ||
189 | Double_t fprobComb[AliPID::kSPECIES]={0.}; | |
190 | CalcCombProb(track,fkPIDResponse, fprobComb); | |
191 | ||
192 | Int_t pdg=0; | |
193 | if(fprobComb[AliPID::kElectron]>fpidthres) pdg=11; | |
194 | ||
195 | if((pidqa) && (pdg==11) && (used==1)) pidqa->ProcessTrack(track, AliHFEpid::kBAYESpid, AliHFEdetPIDqa::kAfterPID); | |
196 | ||
197 | return pdg; | |
198 | ||
199 | ||
200 | } | |
201 | ||
202 | void AliHFEpidBayes::CalcCombProb(const AliHFEpidObject *track,const AliPIDResponse *fPIDResponse, Double_t* fprobTPCTOF) const | |
203 | { | |
204 | // | |
205 | // The name says it all | |
206 | // | |
207 | ||
208 | for(Int_t i=0;i<AliPID::kSPECIES;i++) | |
209 | { | |
210 | fprobTPCTOF[i]=0.; | |
211 | } | |
212 | fPIDCombined->SetEnablePriors(kFALSE); | |
213 | fPIDCombined->SetDetectorMask(fDetMask); | |
214 | ||
215 | fPIDCombined->ComputeProbabilities((AliVTrack*)track->GetRecTrack(), fPIDResponse, fprobTPCTOF); | |
216 | ||
217 | } | |
218 |