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477a0971 | 1 | /**************************************************************************\r |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *\r | |
3 | * *\r | |
4 | * Author: The ALICE Off-line Project. *\r | |
5 | * Contributors are mentioned in the code where appropriate. *\r | |
6 | * *\r | |
7 | * Permission to use, copy, modify and distribute this software and its *\r | |
8 | * documentation strictly for non-commercial purposes is hereby granted *\r | |
9 | * without fee, provided that the above copyright notice appears in all *\r | |
10 | * copies and that both the copyright notice and this permission notice *\r | |
11 | * appear in the supporting documentation. The authors make no claims *\r | |
12 | * about the suitability of this software for any purpose. It is *\r | |
13 | * provided "as is" without express or implied warranty. *\r | |
14 | **************************************************************************/\r | |
15 | \r | |
16 | /* $Id: */\r | |
17 | \r | |
18 | //_________________________________________________________________________\r | |
19 | // Analysis for Tagged Photons\r | |
20 | // Prepares all necessary histograms for calculation of \r | |
21 | // the yield of pi0 decay photon in calorimeter:\r | |
22 | // \r | |
23 | //\r | |
24 | //*-- Dmitry Blau \r | |
25 | //////////////////////////////////////////////////////////////////////////////\r | |
26 | \r | |
27 | #include <TCanvas.h>\r | |
28 | #include <TH1.h>\r | |
29 | #include <TH2.h>\r | |
30 | #include <TH3.h>\r | |
31 | #include <TROOT.h>\r | |
32 | #include <TLegend.h> \r | |
33 | #include <TNtuple.h>\r | |
34 | #include <TVector3.h> \r | |
35 | #include <TFile.h>\r | |
36 | \r | |
37 | #include "AliAnalysisTaskTaggedPhotons.h" \r | |
38 | #include "AliAnalysisManager.h"\r | |
39 | #include "AliESDEvent.h" \r | |
40 | #include "AliESDCaloCluster.h" \r | |
41 | #include "AliAODPWG4Particle.h"\r | |
42 | #include "AliLog.h"\r | |
43 | #include "AliESDVertex.h"\r | |
44 | #include "AliPHOSGeoUtils.h"\r | |
45 | #include "TGeoManager.h"\r | |
46 | #include "AliMCAnalysisUtils.h" | |
47 | #include "AliMCEventHandler.h"\r | |
48 | #include "AliAnalysisManager.h"\r | |
49 | #include "AliMCEvent.h"\r | |
50 | #include "AliStack.h"\r | |
51 | \r | |
52 | //______________________________________________________________________________\r | |
53 | AliAnalysisTaskTaggedPhotons::AliAnalysisTaskTaggedPhotons() : AliAnalysisTaskSE(), | |
54 | fgeom(0x0),fStack(0x0),fDebug(0),fPHOS(1), | |
55 | fPhotonId(1.0),fMinEnergyCut(0.4), | |
56 | fPi0Mean_p0(0.1377),fPi0Mean_p1(-0.002566),fPi0Mean_p2(0.001216),fPi0Mean_p3(-0.0001256), | |
57 | fPi0Sigma_p0(0.004508),fPi0Sigma_p1(0.005497),fPi0Sigma_p2(0.00000006), | |
58 | fZmax(0.),fZmin(0.),fPhimax(0.),fPhimin(0.), | |
59 | fOutputList(0x0),fEventList(0x0), | |
60 | fhRecAll(0x0),fhRecAllArea1(0x0),fhRecAllArea2(0x0),fhRecAllArea3(0x0), | |
61 | fhRecPhoton(0x0),fhRecOther(0x0),fhRecPhotPi0(0x0),fhRecPhotEta(0x0), | |
62 | fhRecPhotOmega(0x0),fhRecPhotEtapr(0x0),fhRecPhotConv(0x0),fhRecPhotHadron(0x0), | |
63 | fhRecPhotDirect(0x0),fhRecPhotOther(0x0), | |
64 | fhDecWMCPartner(0x0),fhDecWMissedPartnerNotPhoton(0x0),fhDecWMissedPartnerAll(0x0), | |
65 | fhDecWMissedPartnerEmin(0x0),fhDecWMissedPartnerConv(0x0),fhDecWMissedPartnerGeom0(0x0), | |
66 | fhDecWMissedPartnerGeom1(0x0),fhDecWMissedPartnerGeom2(0x0),fhDecWMissedPartnerGeom3(0x0), | |
67 | fhPartnerMCReg(0x0),fhPartnerMissedEmin(0x0),fhPartnerMissedConv(0x0),fhPartnerMissedGeo(0x0), | |
68 | fhTaggedAll(0x0),fhTaggedArea1(0x0),fhTaggedArea2(0x0),fhTaggedArea3(0x0),fhTaggedMult(0x0), | |
69 | fhTaggedMCTrue(0x0),fhMCMissedTagging(0x0),fhMCFakeTagged(0x0), | |
70 | fhInvMassReal(0x0),fhInvMassMixed(0x0),fhMCMissedTaggingMass(0x0), | |
71 | fhConversionRadius(0x0),fhInteractionRadius(0x0),fhEvents(0x0) | |
72 | {\r | |
73 | //Default constructor\r | |
74 | }\r | |
75 | //______________________________________________________________________________\r | |
76 | AliAnalysisTaskTaggedPhotons::AliAnalysisTaskTaggedPhotons(const char *name) : \r | |
77 | AliAnalysisTaskSE(name),\r | |
78 | fgeom(0x0),fStack(0x0),fDebug(0),fPHOS(1), | |
79 | fPhotonId(1.0),fMinEnergyCut(0.4), | |
80 | fPi0Mean_p0(0.1377),fPi0Mean_p1(-0.002566),fPi0Mean_p2(0.001216),fPi0Mean_p3(-0.0001256), | |
81 | fPi0Sigma_p0(0.004508),fPi0Sigma_p1(0.005497),fPi0Sigma_p2(0.00000006), | |
82 | fZmax(0.),fZmin(0.),fPhimax(0.),fPhimin(0.), | |
83 | fOutputList(0x0),fEventList(0x0), | |
84 | fhRecAll(0x0),fhRecAllArea1(0x0),fhRecAllArea2(0x0),fhRecAllArea3(0x0), | |
85 | fhRecPhoton(0x0),fhRecOther(0x0),fhRecPhotPi0(0x0),fhRecPhotEta(0x0), | |
86 | fhRecPhotOmega(0x0),fhRecPhotEtapr(0x0),fhRecPhotConv(0x0),fhRecPhotHadron(0x0), | |
87 | fhRecPhotDirect(0x0),fhRecPhotOther(0x0), | |
88 | fhDecWMCPartner(0x0),fhDecWMissedPartnerNotPhoton(0x0),fhDecWMissedPartnerAll(0x0), | |
89 | fhDecWMissedPartnerEmin(0x0),fhDecWMissedPartnerConv(0x0),fhDecWMissedPartnerGeom0(0x0), | |
90 | fhDecWMissedPartnerGeom1(0x0),fhDecWMissedPartnerGeom2(0x0),fhDecWMissedPartnerGeom3(0x0), | |
91 | fhPartnerMCReg(0x0),fhPartnerMissedEmin(0x0),fhPartnerMissedConv(0x0),fhPartnerMissedGeo(0x0), | |
92 | fhTaggedAll(0x0),fhTaggedArea1(0x0),fhTaggedArea2(0x0),fhTaggedArea3(0x0),fhTaggedMult(0x0), | |
93 | fhTaggedMCTrue(0x0),fhMCMissedTagging(0x0),fhMCFakeTagged(0x0), | |
94 | fhInvMassReal(0x0),fhInvMassMixed(0x0),fhMCMissedTaggingMass(0x0), | |
95 | fhConversionRadius(0x0),fhInteractionRadius(0x0),fhEvents(0x0) | |
96 | {\r | |
97 | // Constructor.\r | |
98 | \r | |
99 | // Output slots \r | |
100 | DefineOutput(1, TList::Class()) ; \r | |
101 | }\r | |
102 | \r | |
103 | //____________________________________________________________________________\r | |
104 | AliAnalysisTaskTaggedPhotons::AliAnalysisTaskTaggedPhotons(const AliAnalysisTaskTaggedPhotons& ap) :\r | |
105 | AliAnalysisTaskSE(ap.GetName()), \r | |
106 | fgeom(0x0),fStack(0x0),fDebug(ap.fDebug),fPHOS(ap.fPHOS), | |
107 | fPhotonId(ap.fPhotonId),fMinEnergyCut(ap.fMinEnergyCut), | |
108 | fPi0Mean_p0(ap.fPi0Mean_p0),fPi0Mean_p1(ap.fPi0Mean_p1),fPi0Mean_p2(ap.fPi0Mean_p2),fPi0Mean_p3(ap.fPi0Mean_p3), | |
109 | fPi0Sigma_p0(ap.fPi0Sigma_p0),fPi0Sigma_p1(ap.fPi0Sigma_p1),fPi0Sigma_p2(ap.fPi0Sigma_p2), | |
110 | fZmax(ap.fZmax),fZmin(ap.fZmin),fPhimax(ap.fPhimax),fPhimin(ap.fPhimin), | |
111 | fOutputList(0x0),fEventList(0x0), | |
112 | fhRecAll(0x0),fhRecAllArea1(0x0),fhRecAllArea2(0x0),fhRecAllArea3(0x0), | |
113 | fhRecPhoton(0x0),fhRecOther(0x0),fhRecPhotPi0(0x0),fhRecPhotEta(0x0), | |
114 | fhRecPhotOmega(0x0),fhRecPhotEtapr(0x0),fhRecPhotConv(0x0),fhRecPhotHadron(0x0), | |
115 | fhRecPhotDirect(0x0),fhRecPhotOther(0x0), | |
116 | fhDecWMCPartner(0x0),fhDecWMissedPartnerNotPhoton(0x0),fhDecWMissedPartnerAll(0x0), | |
117 | fhDecWMissedPartnerEmin(0x0),fhDecWMissedPartnerConv(0x0),fhDecWMissedPartnerGeom0(0x0), | |
118 | fhDecWMissedPartnerGeom1(0x0),fhDecWMissedPartnerGeom2(0x0),fhDecWMissedPartnerGeom3(0x0), | |
119 | fhPartnerMCReg(0x0),fhPartnerMissedEmin(0x0),fhPartnerMissedConv(0x0),fhPartnerMissedGeo(0x0), | |
120 | fhTaggedAll(0x0),fhTaggedArea1(0x0),fhTaggedArea2(0x0),fhTaggedArea3(0x0),fhTaggedMult(0x0), | |
121 | fhTaggedMCTrue(0x0),fhMCMissedTagging(0x0),fhMCFakeTagged(0x0), | |
122 | fhInvMassReal(0x0),fhInvMassMixed(0x0),fhMCMissedTaggingMass(0x0), | |
123 | fhConversionRadius(0x0),fhInteractionRadius(0x0),fhEvents(0x0) | |
124 | { | |
125 | // cpy ctor\r | |
126 | }\r | |
127 | \r | |
128 | //_____________________________________________________________________________\r | |
129 | AliAnalysisTaskTaggedPhotons& AliAnalysisTaskTaggedPhotons::operator = (const AliAnalysisTaskTaggedPhotons& ap)\r | |
130 | {\r | |
131 | // assignment operator\r | |
132 | \r | |
133 | this->~AliAnalysisTaskTaggedPhotons();\r | |
134 | new(this) AliAnalysisTaskTaggedPhotons(ap);\r | |
135 | return *this;\r | |
136 | }\r | |
137 | \r | |
138 | //______________________________________________________________________________\r | |
139 | AliAnalysisTaskTaggedPhotons::~AliAnalysisTaskTaggedPhotons()\r | |
140 | {\r | |
141 | // dtor\r | |
142 | if(fOutputList) {\r | |
143 | fOutputList->Clear() ; \r | |
144 | delete fOutputList ;\r | |
145 | }\r | |
146 | }\r | |
147 | \r | |
148 | \r | |
149 | //________________________________________________________________________\r | |
150 | void AliAnalysisTaskTaggedPhotons::UserCreateOutputObjects()\r | |
151 | { \r | |
152 | \r | |
153 | //Load geometry\r | |
154 | //if file "geometry.root" exists, load it\r | |
155 | //otherwise use misaligned matrixes stored in ESD\r | |
156 | TFile *geoFile = new TFile("geometry.root","read");\r | |
157 | if(geoFile->IsZombie()){ //no file, load geo matrixes from ESD\r | |
158 | //todo\r | |
159 | AliInfo("Can not find file geometry.root, reading misalignment matrixes from AliESDs") ; | |
160 | AliESDEvent* esd = dynamic_cast<AliESDEvent*>(InputEvent()) ; | |
161 | if(!esd) | |
162 | AliFatal("Can not read geometry even from ESD. Note, that AOD does not contain PHOS/EMCAL geometry") ; | |
163 | if(fPHOS){//reading PHOS matrixes | |
164 | fgeom = new AliPHOSGeoUtils("IHEP","");\r | |
165 | for(Int_t mod=0; mod<5; mod++){ | |
166 | const TGeoHMatrix* m=esd->GetPHOSMatrix(mod) ; | |
167 | fgeom->SetMisalMatrix(m, mod) ; | |
168 | } | |
169 | } | |
170 | }\r | |
171 | else{\r | |
172 | gGeoManager = (TGeoManager*)geoFile->Get("Geometry");\r | |
173 | fgeom = new AliPHOSGeoUtils("IHEP","");\r | |
174 | }\r | |
175 | \r | |
176 | \r | |
177 | if(fgeom==NULL){\r | |
178 | AliError("Error loading Geometry\n");\r | |
179 | }\r | |
180 | else\r | |
181 | AliInfo("Geometry loaded... OK\n");\r | |
182 | \r | |
183 | //Evaluate active PHOS/EMCAL area\r | |
184 | //To be fixed todo\r | |
185 | fZmax= 2.25*56/2. ;\r | |
186 | fZmin=-2.25*56/2. ;\r | |
187 | fPhimax=220./180.*TMath::Pi() ;\r | |
188 | fPhimin=320./180.*TMath::Pi() ;\r | |
189 | \r | |
190 | \r | |
191 | // Create the outputs containers\r | |
192 | \r | |
193 | OpenFile(1) ; \r | |
194 | const Int_t nPtBins=51 ;\r | |
195 | Double_t ptBins[nPtBins+1] ;\r | |
196 | for(Int_t i=0;i<=20;i++)ptBins[i]=0.1*i ; //0-2 GeV: 0.1 GeV/bin\r | |
197 | for(Int_t i=21;i<=30;i++)ptBins[i]=2.+0.2*(i-20) ; //2-4 GeV: 0.2 GeV/bin \r | |
198 | for(Int_t i=31;i<=38;i++)ptBins[i]=4.+0.5*(i-30) ; //4-8 GeV: 0.5 GeV/bin \r | |
199 | for(Int_t i=39;i<=42;i++)ptBins[i]=8.+1.0*(i-38) ; //8-12 GeV: 1. GeV/bin \r | |
200 | for(Int_t i=43;i<=52;i++)ptBins[i]=12.+2.0*(i-42) ; //12-30 GeV: 2. GeV/bin \r | |
201 | \r | |
202 | \r | |
203 | //Reconstructed spectra\r | |
204 | fhRecAll = new TH1D("fhRecAll","Spectrum of all reconstructed particles", nPtBins, ptBins ) ;\r | |
205 | fhRecAllArea1 = new TH1D("fhRecAllArea1","Spectrum of rec particles in Fid. Area 1", nPtBins, ptBins ) ;\r | |
206 | fhRecAllArea2 = new TH1D("fhRecAllArea2","Spectrum of rec particles in Fid. Area 2", nPtBins, ptBins ) ;\r | |
207 | fhRecAllArea3 = new TH1D("fhRecAllArea3","Spectrum of rec particles in Fid. Area 3", nPtBins, ptBins ) ;\r | |
208 | \r | |
209 | //Sort registered particles spectra according MC information\r | |
210 | fhRecPhoton = new TH1D("fhRecPhoton","Spectrum of rec. with primary==22 and no PID criteria", nPtBins, ptBins ) ;\r | |
211 | fhRecOther = new TH1D("fhRecOther"," Spectrum of rec. with primary!=22 and no PID criteria", nPtBins, ptBins ) ;\r | |
212 | fhRecPhotonPID[0]= new TH1D("fhRecPhotonPID0","Spectrum of rec. with primary==22 and PID=0", nPtBins, ptBins ) ;\r | |
213 | fhRecPhotonPID[1]= new TH1D("fhRecPhotonPID1","Spectrum of rec. with primary==22 and PID=1", nPtBins, ptBins ) ;\r | |
214 | fhRecPhotonPID[2]= new TH1D("fhRecPhotonPID2","Spectrum of rec. with primary==22 and PID=2", nPtBins, ptBins ) ;\r | |
215 | fhRecPhotonPID[3]= new TH1D("fhRecPhotonPID3","Spectrum of rec. with primary==22 and PID=3", nPtBins, ptBins ) ;\r | |
216 | fhRecOtherPID[0]= new TH1D("fhRecOtherPID0","Spectrum of rec. with primary!=22 and PID=0", nPtBins, ptBins ) ;\r | |
217 | fhRecOtherPID[1]= new TH1D("fhRecOtherPID1","Spectrum of rec. with primary!=22 and PID=1", nPtBins, ptBins ) ;\r | |
218 | fhRecOtherPID[2]= new TH1D("fhRecOtherPID2","Spectrum of rec. with primary!=22 and PID=2", nPtBins, ptBins ) ;\r | |
219 | fhRecOtherPID[3]= new TH1D("fhRecOtherPID3","Spectrum of rec. with primary!=22 and PID=3", nPtBins, ptBins ) ;\r | |
220 | fhRecPhotPi0 = new TH1D("fhRecPhotPi0","Spectrum of rec. photons from pi0 decays", nPtBins, ptBins ) ;\r | |
221 | fhRecPhotEta = new TH1D("fhRecPhotEta","Spectrum of rec. photons from eta decays", nPtBins, ptBins ) ;\r | |
222 | fhRecPhotOmega = new TH1D("fhRecPhotOmega","Spectrum of rec. photons from omega decays", nPtBins, ptBins ) ;\r | |
223 | fhRecPhotEtapr = new TH1D("fhRecPhotEtapr","Spectrum of rec. photons from eta prime decays", nPtBins, ptBins ) ;\r | |
224 | fhRecPhotConv = new TH1D("fhRecPhotConv"," Spectrum of rec. photons from conversion", nPtBins, ptBins ) ;\r | |
225 | fhRecPhotHadron = new TH1D("fhRecPhotHadron","Spectrum of rec. photons from hadron-matter interactions", nPtBins, ptBins ) ;\r | |
226 | fhRecPhotDirect = new TH1D("fhRecPhotDirect","Spectrum of rec. photons direct or no primary", nPtBins, ptBins ) ;\r | |
227 | fhRecPhotOther = new TH1D("fhRecPhotOther","Spectrum of rec. photons from other hadron decays", nPtBins, ptBins ) ;\r | |
228 | \r | |
229 | //MC tagging: reasons of partner loss etc.\r | |
230 | fhDecWMCPartner = new TH1D("fhDecWMCPartner","pi0 decay photon which partner should be registered according to MC", nPtBins, ptBins ) ;\r | |
231 | fhDecWMissedPartnerNotPhoton = new TH1D("fhDecWMissedPartnerNotPhoton","Decay photon with missed non-photon partner", nPtBins, ptBins ) ;\r | |
232 | fhDecWMissedPartnerAll = new TH1D("fhDecWMissedPartnerAll","Decay photons with partner missed due to some reason", nPtBins, ptBins ) ;\r | |
233 | fhDecWMissedPartnerEmin = new TH1D("fhDecWMissedPartnerEmin","Decay photons with partner missed due to low energy", nPtBins, ptBins ) ;\r | |
234 | fhDecWMissedPartnerConv = new TH1D("fhDecWMissedPartnerConv","Decay photons with partner missed due to conversion", nPtBins, ptBins ) ;\r | |
235 | fhDecWMissedPartnerGeom0 = new TH1D("fhDecWMissedPartnerGeom0","Decay photons with partner missed due geometry", nPtBins, ptBins ) ;\r | |
236 | fhDecWMissedPartnerGeom1 = new TH1D("fhDecWMissedPartnerGeom1","Decay photons with partner missed due geometry Fid. area. 1", nPtBins, ptBins ) ;\r | |
237 | fhDecWMissedPartnerGeom2 = new TH1D("fhDecWMissedPartnerGeom2","Decay photons with partner missed due geometry Fid. area. 2", nPtBins, ptBins ) ;\r | |
238 | fhDecWMissedPartnerGeom3 = new TH1D("fhDecWMissedPartnerGeom3","Decay photons with partner missed due geometry Fid. area. 3", nPtBins, ptBins ) ;\r | |
239 | \r | |
240 | //MC tagging: Decay partners spectra\r | |
241 | fhPartnerMCReg = new TH1D("fhPartnerMCReg","Spectrum of decay partners which should be registered (MC)", nPtBins, ptBins ) ;\r | |
242 | fhPartnerMissedEmin = new TH1D("fhPartnerMissedEmin","Spectrum of decay partners lost due to Emin cut", nPtBins, ptBins ) ;\r | |
243 | fhPartnerMissedConv = new TH1D("fhPartnerMissedConv","Spectrum of decay partners lost due to conversion", nPtBins, ptBins ) ;\r | |
244 | fhPartnerMissedGeo = new TH1D("fhPartnerMissedGeo","Spectrum of decay partners lost due to acceptance", nPtBins, ptBins ) ;\r | |
245 | \r | |
246 | //Tagging\r | |
247 | fhTaggedAll = new TH1D("fhTaggedAll","Spectrum of all tagged photons", nPtBins, ptBins ) ;\r | |
248 | fhTaggedArea1 = new TH1D("fhTaggedArea1","Spectrum of all tagged photons Fid. area1", nPtBins, ptBins ) ;\r | |
249 | fhTaggedArea2 = new TH1D("fhTaggedArea2","Spectrum of all tagged photons Fid. area2", nPtBins, ptBins ) ;\r | |
250 | fhTaggedArea3 = new TH1D("fhTaggedArea3","Spectrum of all tagged photons Fid. area3", nPtBins, ptBins ) ;\r | |
251 | fhTaggedPID[0] = new TH1D("fhTaggedPID0","Spectrum of tagged photons for PID=0", nPtBins, ptBins ) ;\r | |
252 | fhTaggedPID[1] = new TH1D("fhTaggedPID1","Spectrum of tagged photons for PID=1", nPtBins, ptBins ) ;\r | |
253 | fhTaggedPID[2] = new TH1D("fhTaggedPID2","Spectrum of tagged photons for PID=2", nPtBins, ptBins ) ;\r | |
254 | fhTaggedPID[3] = new TH1D("fhTaggedPID3","Spectrum of tagged photons for PID=3", nPtBins, ptBins ) ;\r | |
255 | fhTaggedMult = new TH1D("fhTaggedMult","Spectrum of multiply tagged photons", nPtBins, ptBins ) ;\r | |
256 | \r | |
257 | //Tagging: use MC information if available\r | |
258 | fhTaggedMCTrue = new TH1D("fhTaggedMCTrue","Spectrum of correctly tagged pi0 decay photons", nPtBins, ptBins ) ;\r | |
259 | fhMCMissedTagging = new TH1D("fhMCMissedTagging","Spectrum of pi0 decay photons missed tagging due to wrong pair mass", nPtBins, ptBins ) ;\r | |
260 | fhMCFakeTagged = new TH1D("fhMCFakeTagged","Spectrum of photons wrongly tagged according to MC", nPtBins, ptBins ) ;\r | |
261 | \r | |
262 | //Invariant mass distributions for fake corrections\r | |
263 | const Int_t nmass=200 ;\r | |
264 | Double_t masses[nmass+1] ;\r | |
265 | for(Int_t i=0;i<=nmass;i++)masses[i]=0.005*i ;\r | |
266 | fhInvMassReal = new TH2D("fhInvMassReal","Two-photon inv. mass vs first photon pt",nmass,masses,nPtBins, ptBins ) ;\r | |
267 | fhInvMassMixed = new TH2D("fhInvMassMixed","Two-photon inv. mass vs first photon pt",nmass,masses,nPtBins, ptBins ) ;\r | |
268 | fhMCMissedTaggingMass= new TH2D("fhMCMissedTaggingMass","Inv mass of pairs missed tagging",nmass,masses,nPtBins, ptBins ) ;\r | |
269 | \r | |
270 | //Conversion and annihilation radius distributions\r | |
271 | fhConversionRadius = new TH1D("fhConversionRadius","Radis of photon production (conversion)",100,0.,500.) ;\r | |
272 | fhInteractionRadius = new TH1D("fhInteractionRadius","Radis of photon production (hadron interaction)",100,0.,500.);\r | |
273 | \r | |
274 | fhEvents = new TH1D("hEvents", "Number of Events processed", 1, 0, 1);\r | |
275 | \r | |
276 | // create output container\r | |
277 | \r | |
278 | fOutputList = new TList() ;\r | |
279 | fEventList = new TList() ; \r | |
280 | fOutputList->SetName(GetName()) ; \r | |
281 | \r | |
282 | fOutputList->AddAt(fhRecAll, 0) ;\r | |
283 | fOutputList->AddAt(fhRecAllArea1, 1) ;\r | |
284 | fOutputList->AddAt(fhRecAllArea2, 2) ;\r | |
285 | fOutputList->AddAt(fhRecAllArea3, 3) ;\r | |
286 | \r | |
287 | fOutputList->AddAt(fhRecPhoton, 4) ;\r | |
288 | fOutputList->AddAt(fhRecOther, 5) ;\r | |
289 | fOutputList->AddAt(fhRecPhotonPID[0], 6) ;\r | |
290 | fOutputList->AddAt(fhRecPhotonPID[1], 7) ;\r | |
291 | fOutputList->AddAt(fhRecPhotonPID[2], 8) ;\r | |
292 | fOutputList->AddAt(fhRecPhotonPID[3], 9) ;\r | |
293 | fOutputList->AddAt(fhRecOtherPID[0], 10) ;\r | |
294 | fOutputList->AddAt(fhRecOtherPID[1], 11) ;\r | |
295 | fOutputList->AddAt(fhRecOtherPID[2], 12) ;\r | |
296 | fOutputList->AddAt(fhRecOtherPID[3], 13) ;\r | |
297 | fOutputList->AddAt(fhRecPhotPi0, 14) ;\r | |
298 | fOutputList->AddAt(fhRecPhotEta, 15) ;\r | |
299 | fOutputList->AddAt(fhRecPhotOmega, 16) ;\r | |
300 | fOutputList->AddAt(fhRecPhotEtapr, 17) ;\r | |
301 | fOutputList->AddAt(fhRecPhotConv, 18) ;\r | |
302 | fOutputList->AddAt(fhRecPhotHadron, 19) ;\r | |
303 | fOutputList->AddAt(fhRecPhotDirect, 20) ;\r | |
304 | fOutputList->AddAt(fhRecPhotOther, 21) ;\r | |
305 | \r | |
306 | fOutputList->AddAt(fhDecWMCPartner, 22) ;\r | |
307 | fOutputList->AddAt(fhDecWMissedPartnerNotPhoton, 23) ;\r | |
308 | fOutputList->AddAt(fhDecWMissedPartnerAll, 24) ;\r | |
309 | fOutputList->AddAt(fhDecWMissedPartnerEmin, 25) ;\r | |
310 | fOutputList->AddAt(fhDecWMissedPartnerConv, 26) ;\r | |
311 | fOutputList->AddAt(fhDecWMissedPartnerGeom0, 27) ;\r | |
312 | fOutputList->AddAt(fhDecWMissedPartnerGeom1, 28) ;\r | |
313 | fOutputList->AddAt(fhDecWMissedPartnerGeom2, 29) ;\r | |
314 | fOutputList->AddAt(fhDecWMissedPartnerGeom3, 30) ;\r | |
315 | \r | |
316 | fOutputList->AddAt(fhPartnerMCReg, 31) ;\r | |
317 | fOutputList->AddAt(fhPartnerMissedEmin, 32) ;\r | |
318 | fOutputList->AddAt(fhPartnerMissedConv, 33) ;\r | |
319 | fOutputList->AddAt(fhPartnerMissedGeo, 34) ;\r | |
320 | \r | |
321 | fOutputList->AddAt(fhTaggedAll, 35) ;\r | |
322 | fOutputList->AddAt(fhTaggedArea1, 36) ;\r | |
323 | fOutputList->AddAt(fhTaggedArea2, 37) ;\r | |
324 | fOutputList->AddAt(fhTaggedArea3, 38) ;\r | |
325 | fOutputList->AddAt(fhTaggedPID[0], 39) ;\r | |
326 | fOutputList->AddAt(fhTaggedPID[1], 40) ;\r | |
327 | fOutputList->AddAt(fhTaggedPID[2], 41) ;\r | |
328 | fOutputList->AddAt(fhTaggedPID[3], 42) ;\r | |
329 | fOutputList->AddAt(fhTaggedMult, 43) ;\r | |
330 | \r | |
331 | fOutputList->AddAt(fhTaggedMCTrue, 44) ;\r | |
332 | fOutputList->AddAt(fhMCMissedTagging, 45) ;\r | |
333 | fOutputList->AddAt(fhMCFakeTagged, 46) ;\r | |
334 | \r | |
335 | fOutputList->AddAt(fhInvMassReal, 47) ;\r | |
336 | fOutputList->AddAt(fhInvMassMixed, 48) ;\r | |
337 | fOutputList->AddAt(fhMCMissedTaggingMass, 49) ;\r | |
338 | \r | |
339 | fOutputList->AddAt(fhConversionRadius, 50) ;\r | |
340 | fOutputList->AddAt(fhInteractionRadius, 51) ;\r | |
341 | \r | |
342 | fOutputList->AddAt(fhEvents, 52) ;\r | |
343 | \r | |
344 | \r | |
345 | /*\r | |
346 | fOutputList->AddAt(fhPHOSPos, 0) ; \r | |
347 | fOutputList->AddAt(fhPHOS, 1) ; \r | |
348 | fOutputList->AddAt(fhAllPhotons, 2) ;\r | |
349 | fOutputList->AddAt(fhNotPhotons, 3) ;\r | |
350 | fOutputList->AddAt(fhAllPhotonsPrimary, 4) ;\r | |
351 | fOutputList->AddAt(fhNotPhotonsPrimary, 5) ;\r | |
352 | fOutputList->AddAt(fhfakeNotPhotons, 6) ;\r | |
353 | \r | |
354 | fOutputList->AddAt(fhTaggedPhotons, 7) ; \r | |
355 | fOutputList->AddAt(fhfakeTaggedPhotons, 8) ;\r | |
356 | fOutputList->AddAt(fhDecayNotTaggedPhotons, 9) ;\r | |
357 | fOutputList->AddAt(fhPi0DecayPhotonsPrimary, 10);\r | |
358 | fOutputList->AddAt(fhEtaDecayPhotonsPrimary, 11);\r | |
359 | fOutputList->AddAt(fhOmegaDecayPhotonsPrimary, 12);\r | |
360 | fOutputList->AddAt(fhEtaSDecayPhotonsPrimary, 13);\r | |
361 | fOutputList->AddAt(fhOtherDecayPhotonsPrimary, 14);\r | |
362 | fOutputList->AddAt(fhDecayPhotonsPrimary, 15);\r | |
363 | \r | |
364 | fOutputList->AddAt(fhConvertedPhotonsPrimary, 16);\r | |
365 | fOutputList->AddAt(fhConvertedPhotonsPrimaryHadronsDecays, 17);\r | |
366 | fOutputList->AddAt(fhCoordsConversion, 18);\r | |
367 | fOutputList->AddAt(fhCoordsConversion2, 19);\r | |
368 | \r | |
369 | fOutputList->AddAt(fhPHOSInvariantMassReal, 20);\r | |
370 | fOutputList->AddAt(fhPHOSInvariantMassMixed, 21);\r | |
371 | \r | |
372 | fOutputList->AddAt(fhPHOSPi0, 22);\r | |
373 | \r | |
374 | fOutputList->AddAt(fhPi0DecayPhotonsGeomfake, 23);\r | |
375 | fOutputList->AddAt(fhPi0DecayPhotonsTaggedPrimary, 24);\r | |
376 | fOutputList->AddAt(fhPi0DecayPhotonsTaggedPrimaryPair, 25);\r | |
377 | fOutputList->AddAt(fhPi0DecayPhotonsBigDecay, 26);\r | |
378 | fOutputList->AddAt(fhPi0DecayPhotonsPConv, 27);\r | |
379 | fOutputList->AddAt(fhPi0DecayPhotonsPGeo, 28);\r | |
380 | fOutputList->AddAt(fhPi0DecayPhotonsPReg, 29);\r | |
381 | \r | |
382 | fOutputList->AddAt(fhfakeTaggedPhotonsConv, 30) ;\r | |
383 | fOutputList->AddAt(fhfakeTaggedPhotonsPID, 31) ;\r | |
384 | fOutputList->AddAt(fhstrangeNotTaggedPhotons, 32) ;\r | |
385 | fOutputList->AddAt(fhstrangeNotTaggedPhotonsPair, 33) ;\r | |
386 | fOutputList->AddAt(fhstrangeNotTaggedPhotonsRegCut, 34) ;\r | |
387 | fOutputList->AddAt(fhPi0DecayPhotonsTaggedPrimaryRegCut, 35);\r | |
388 | fOutputList->AddAt(fhstrangeNotTaggedPhotonsPairRegCut, 36) ;\r | |
389 | fOutputList->AddAt(fhPi0DecayPhotonsTaggedPrimaryPairRegCut, 37);\r | |
390 | fOutputList->AddAt(fhTrackRefCoords, 38);\r | |
391 | */\r | |
392 | fOutputList->AddAt(fhEvents, 39);\r | |
393 | }\r | |
394 | \r | |
395 | //______________________________________________________________________________\r | |
396 | void AliAnalysisTaskTaggedPhotons::UserExec(Option_t *) \r | |
397 | {\r | |
398 | fhEvents->Fill(0.);\r | |
399 | \r | |
400 | // Processing of one event\r | |
401 | if(fDebug>1)\r | |
402 | AliInfo(Form("\n\n Processing event # %lld", Entry())) ; \r | |
403 | AliESDEvent* esd = (AliESDEvent*)InputEvent();\r | |
404 | \r | |
405 | if(fDebug>2){ //DP: Check these histograms <------- \r | |
406 | // printf("Tagged: %f ",fhTaggedPhotons->GetEntries());\r | |
407 | // printf("fakeTagged: %f ",fhfakeTaggedPhotons->GetEntries());\r | |
408 | // printf("fakeNotTagged: %f ",fhfakeNotTaggedPhotons->GetEntries());\r | |
409 | // printf("strangeNotTagged: %f ",fhstrangeNotTaggedPhotons->GetEntries());\r | |
410 | // printf("trueTagged: %f ",fhPi0DecayPhotonsTrueTagged->GetEntries());\r | |
411 | // printf("fakeTaggedConv: %f ",fhfakeTaggedPhotonsConv->GetEntries());\r | |
412 | // printf("\nDIFF: %f\n",fhTaggedPhotons->GetEntries()-fhfakeTaggedPhotons->GetEntries()+fhfakeNotTaggedPhotons->GetEntries()+fhstrangeNotTaggedPhotons->GetEntries()-fhPi0DecayPhotonsTrueTagged->GetEntries()-fhfakeTaggedPhotonsConv->GetEntries());\r | |
413 | }\r | |
414 | \r | |
415 | //MC stack init\r | |
416 | AliMCEventHandler* mctruth = (AliMCEventHandler*)((AliAnalysisManager::GetAnalysisManager())->GetMCtruthEventHandler());\r | |
417 | fStack = mctruth->MCEvent()->Stack();\r | |
418 | \r | |
419 | if(!fStack && gDebug>1)\r | |
420 | AliInfo("No stack! \n");\r | |
421 | \r | |
422 | //************************ PHOS *************************************\r | |
423 | TRefArray * caloClustersArr = new TRefArray(); \r | |
424 | esd->GetPHOSClusters(caloClustersArr);\r | |
425 | const Int_t kNumberOfPhosClusters = caloClustersArr->GetEntries() ; \r | |
426 | \r | |
427 | TClonesArray * fCaloPhotonsArr = new TClonesArray("AliAODPWG4Particle",kNumberOfPhosClusters);\r | |
428 | Int_t inList = 0; //counter of caloClusters\r | |
429 | \r | |
430 | Int_t phosCluster ; \r | |
431 | \r | |
432 | // loop over PHOS Clusters\r | |
433 | for(phosCluster = 0 ; phosCluster < kNumberOfPhosClusters ; phosCluster++) {\r | |
434 | AliESDCaloCluster * caloCluster = static_cast<AliESDCaloCluster*>(caloClustersArr->At(phosCluster)) ;\r | |
435 | \r | |
436 | if((fPHOS && !caloCluster->IsPHOS()) ||\r | |
437 | (!fPHOS && caloCluster->IsPHOS()))\r | |
438 | continue ; \r | |
439 | \r | |
440 | Double_t v[3] ; //vertex ;\r | |
441 | esd->GetVertex()->GetXYZ(v) ;\r | |
442 | \r | |
443 | TLorentzVector momentum ;\r | |
444 | caloCluster->GetMomentum(momentum, v);\r | |
445 | new ((*fCaloPhotonsArr)[inList]) AliAODPWG4Particle(momentum.Px(),momentum.Py(),momentum.Pz(),caloCluster->E() );\r | |
446 | AliAODPWG4Particle *p = static_cast<AliAODPWG4Particle*>(fCaloPhotonsArr->At(inList));\r | |
447 | inList++;\r | |
448 | \r | |
449 | p->SetCaloLabel(phosCluster,-1); //This and partner cluster | |
450 | p->SetDistToBad(Int_t(caloCluster->GetDistanceToBadChannel()));\r | |
451 | ||
452 | p->SetTag(AliMCAnalysisUtils::kMCUnknown);\r | |
453 | p->SetTagged(kFALSE); //Reconstructed pairs found\r | |
454 | p->SetLabel(caloCluster->GetLabel());\r | |
455 | Float_t pos[3] ; | |
456 | caloCluster->GetPosition(pos) ; | |
457 | p->SetFiducialArea(GetFiducialArea(pos)) ; | |
458 | \r | |
459 | fhRecAll->Fill( p->Pt() ) ; //All recontructed particles\r | |
460 | Int_t iFidArea = p->GetFiducialArea(); \r | |
461 | if(iFidArea>0){\r | |
462 | fhRecAllArea1->Fill(p->Pt() ) ; \r | |
463 | if(iFidArea>1){\r | |
464 | fhRecAllArea2->Fill(p->Pt() ) ; \r | |
465 | if(iFidArea>2){\r | |
466 | fhRecAllArea3->Fill(p->Pt() ) ; \r | |
467 | }\r | |
468 | }\r | |
469 | }\r | |
470 | \r | |
471 | if(fStack){\r | |
472 | TParticle * prim = fStack->Particle(caloCluster->GetLabel()) ;\r | |
473 | if(fDebug>2)\r | |
474 | printf("Pdgcode = %d\n",prim->GetPdgCode());\r | |
475 | \r | |
476 | if(prim->GetPdgCode()!=22){ //not photon\r | |
477 | //<--DP p->SetPhoton(kFALSE);\r | |
478 | fhRecOther->Fill(p->Pt()); //not photons real spectra\r | |
479 | for(Int_t iPID=0; iPID<4; iPID++){\r | |
480 | if(p->IsPIDOK(iPID,22))\r | |
481 | fhRecOtherPID[iPID]->Fill(p->Pt());\r | |
482 | }\r | |
483 | }\r | |
484 | else{ //Primary photon (as in MC)\r | |
485 | //<--DP p->SetPhoton(kTRUE);\r | |
486 | fhRecPhoton->Fill(p->Pt()); //Reconstructed with primary photon\r | |
487 | for(Int_t iPID=0; iPID<4; iPID++){\r | |
488 | if(p->IsPIDOK(iPID,22))\r | |
489 | fhRecPhotonPID[iPID]->Fill(p->Pt());\r | |
490 | }\r | |
491 | Int_t pi0i=prim->GetFirstMother();\r | |
492 | Int_t grandpaPDG=-1 ;\r | |
493 | TParticle * pi0p = 0;\r | |
494 | if(pi0i>=0){\r | |
495 | pi0p=fStack->Particle(pi0i);\r | |
496 | grandpaPDG=pi0p->GetPdgCode() ;\r | |
497 | }\r | |
498 | switch(grandpaPDG){\r | |
499 | case 111: //Pi0 decay\r | |
500 | //Primary decay photon (as in MC)\r | |
501 | fhRecPhotPi0->Fill(p->Pt());\r | |
502 | break ;\r | |
503 | case 11:\r | |
504 | case -11: //electron/positron conversion\r | |
505 | //<--DP p->SetConverted(1);\r | |
506 | fhRecPhotConv->Fill(p->Pt()); //Reconstructed with photon from conversion primary\r | |
507 | fhConversionRadius->Fill(prim->R());\r | |
508 | break ;\r | |
509 | case -2212:\r | |
510 | case -2112: //antineutron & antiproton conversion\r | |
511 | fhRecPhotHadron->Fill(p->Pt()); //Reconstructed with photon from antibaryon annihilation\r | |
512 | fhInteractionRadius->Fill(prim->R());\r | |
513 | break ;\r | |
514 | \r | |
515 | case 221: //eta decay\r | |
516 | fhRecPhotEta->Fill(p->Pt());\r | |
517 | break ; \r | |
518 | \r | |
519 | case 223: //omega meson decay\r | |
520 | fhRecPhotOmega->Fill(p->Pt());\r | |
521 | break ;\r | |
522 | \r | |
523 | case 331: //eta' decay\r | |
524 | fhRecPhotEtapr->Fill(p->Pt());\r | |
525 | break ;\r | |
526 | \r | |
527 | case -1: //direct photon or no primary\r | |
528 | fhRecPhotDirect->Fill(p->Pt());\r | |
529 | break ;\r | |
530 | \r | |
531 | default: \r | |
532 | fhRecPhotOther->Fill(p->Pt());\r | |
533 | break ;\r | |
534 | } \r | |
535 | \r | |
536 | //Now classify pi0 decay photon\r | |
537 | if(grandpaPDG==111){\r | |
538 | //<--DP p->Pi0Decay(kTRUE); //Mark this photon as primary decayed\r | |
539 | //<--DP p->Pi0Id(pi0i); //remember id of the parent pi0\r | |
540 | \r | |
541 | //Now check if second (partner) photon from pi0 decay hits PHOS or not\r | |
542 | //i.e. both photons can be tagged or it's the systematic error\r | |
543 | //<--DP p->SetPartnerPt(0.); \r | |
544 | Int_t indexdecay1,indexdecay2;\r | |
545 | \r | |
546 | indexdecay1=pi0p->GetFirstDaughter();\r | |
547 | indexdecay2=pi0p->GetLastDaughter();\r | |
548 | Int_t indexdecay=-1;\r | |
549 | if(fDebug>2)\r | |
550 | printf("checking pi0 decay...index1=%d, index2=%d, index_pi0=%d, index_ph_prim=%d\n", indexdecay1,indexdecay2,pi0i,caloCluster->GetLabel());\r | |
551 | \r | |
552 | if(indexdecay1!=caloCluster->GetLabel()) \r | |
553 | indexdecay=indexdecay1;\r | |
554 | if(indexdecay2!=caloCluster->GetLabel()) \r | |
555 | indexdecay=indexdecay2;\r | |
556 | if(indexdecay==-1){\r | |
557 | if(fDebug>2){\r | |
558 | printf("Probably the other photon is not in the stack!\n");\r | |
559 | printf("Number of daughters: %d\n",pi0p->GetNDaughters());\r | |
560 | }\r | |
561 | } \r | |
562 | else{\r | |
563 | TParticle *partner = fStack->Particle(indexdecay);\r | |
564 | Int_t modulenum;\r | |
565 | Double_t xtmp,ztmp;\r | |
566 | //<--DP p->SetPartnerPt(partner->Pt());\r | |
567 | if(partner->GetPdgCode()==22){ \r | |
568 | Bool_t isPartnerLost=kFALSE; //If partner is lost for some reason\r | |
569 | if(partner->Energy()<fMinEnergyCut){ //energy is not enough to be registered by PHOS\r | |
570 | if(fDebug>2)\r | |
571 | printf("P_Reg, E=%f\n",partner->Energy());\r | |
572 | fhPartnerMissedEmin->Fill(partner->Pt()); //Spectrum of missed partners\r | |
573 | fhDecWMissedPartnerEmin->Fill(p->Pt()) ; //Spectrum of tagged with missed partner\r | |
574 | isPartnerLost=kTRUE;\r | |
575 | }\r | |
576 | if(partner->GetNDaughters()!=0){ //this photon is converted before it is registered by some detector\r | |
577 | if(fDebug>2)\r | |
578 | printf("P_Conv, daughters=%d\n",partner->GetNDaughters());\r | |
579 | //<--DP p->SetConvertedPartner(1);\r | |
580 | fhPartnerMissedConv->Fill(partner->Pt());\r | |
581 | fhDecWMissedPartnerConv->Fill(p->Pt()) ; //Spectrum of tagged with missed partner\r | |
582 | isPartnerLost=kTRUE;\r | |
583 | }\r | |
584 | if(!fgeom->ImpactOnEmc(partner,modulenum,ztmp,xtmp)){ //this photon cannot hit PHOS\r | |
585 | if(fDebug>2)\r | |
586 | printf("P_Geo\n");\r | |
587 | fhPartnerMissedGeo->Fill(partner->Pt());\r | |
588 | fhDecWMissedPartnerGeom0->Fill(p->Pt()) ; //Spectrum of tagged with missed partner\r | |
589 | if(iFidArea>0){\r | |
590 | fhDecWMissedPartnerGeom1->Fill(p->Pt()) ; //Spectrum of tagged with missed partner\r | |
591 | if(iFidArea>1){\r | |
592 | fhDecWMissedPartnerGeom2->Fill(p->Pt()) ; //Spectrum of tagged with missed partner\r | |
593 | if(iFidArea>2){\r | |
594 | fhDecWMissedPartnerGeom3->Fill(p->Pt()) ; //Spectrum of tagged with missed partner\r | |
595 | }\r | |
596 | }\r | |
597 | }\r | |
598 | isPartnerLost=kTRUE;\r | |
599 | }\r | |
600 | if(!isPartnerLost){\r | |
601 | // p->SetMCTagged(1); //set this photon as primary tagged\r | |
602 | fhDecWMCPartner->Fill(p->Pt());\r | |
603 | fhPartnerMCReg->Fill(partner->Pt());\r | |
604 | if(fDebug>2){\r | |
605 | printf("both photons are inside PHOS. Energy: %f, Pt of pair photon: %f, E of pair photon: %f, Px: %f Py: %f Pz: %f, num of daughters: %d", caloCluster->E(),partner->Pt(),partner->Energy(),partner->Px(),partner->Py(),partner->Pz(),partner->GetNDaughters());\r | |
606 | printf(", module: %d, x tower: %f, z tower: %f\n", modulenum,xtmp,ztmp);\r | |
607 | }\r | |
608 | }\r | |
609 | else{\r | |
610 | fhDecWMissedPartnerAll->Fill(p->Pt());\r | |
611 | }\r | |
612 | }//Partner - photon\r | |
613 | else{//partner not photon\r | |
614 | fhDecWMissedPartnerNotPhoton->Fill(p->Pt()); \r | |
615 | }\r | |
616 | }\r | |
617 | }\r | |
618 | }\r | |
619 | }\r | |
620 | } //PHOS clusters\r | |
621 | \r | |
622 | if(fDebug>1) \r | |
623 | printf("number of clusters: %d\n",inList);\r | |
624 | \r | |
625 | //Invariant Mass analysis\r | |
626 | for(Int_t phosPhoton1 = 0 ; phosPhoton1 < inList-1 ; phosPhoton1++) {\r | |
627 | AliAODPWG4Particle * p1 = static_cast<AliAODPWG4Particle*>(fCaloPhotonsArr->At(phosPhoton1)); \r | |
628 | for(Int_t phosPhoton2 = phosPhoton1 + 1 ; phosPhoton2 < inList ; phosPhoton2++) {\r | |
629 | AliAODPWG4Particle * p2 = static_cast<AliAODPWG4Particle*>(fCaloPhotonsArr->At(phosPhoton2));\r | |
630 | \r | |
631 | Double_t invMass = p1->GetPairMass(p2);\r | |
632 | fhInvMassReal->Fill(invMass,p1->Pt());\r | |
633 | fhInvMassReal->Fill(invMass,p2->Pt());\r | |
634 | if(fDebug>2)\r | |
635 | printf("Pair i=%d,j=%d, M=%f\n",phosPhoton1,phosPhoton2,invMass);\r | |
636 | \r | |
637 | Bool_t makePi01=IsInPi0Band(invMass,p1->Pt());\r | |
638 | Bool_t makePi02=IsInPi0Band(invMass,p2->Pt());\r | |
639 | \r | |
640 | \r | |
641 | if(makePi01 && p1->IsTagged()){//Multiple tagging\r | |
642 | fhTaggedMult->Fill(p1->Pt());\r | |
643 | } \r | |
644 | if(makePi01 && !p1->IsTagged()){//Each photon should enter histogram once, even if tagged several times\r | |
645 | fhTaggedAll->Fill(p1->Pt());\r | |
646 | Int_t iFidArea = p1->GetFiducialArea(); \r | |
647 | if(iFidArea>0){\r | |
648 | fhTaggedArea1->Fill(p1->Pt() ) ; \r | |
649 | if(iFidArea>1){\r | |
650 | fhTaggedArea2->Fill(p1->Pt() ) ; \r | |
651 | if(iFidArea>2){\r | |
652 | fhTaggedArea3->Fill(p1->Pt() ) ; \r | |
653 | }\r | |
654 | }\r | |
655 | }\r | |
656 | \r | |
657 | for(Int_t iPID=0; iPID<4; iPID++){\r | |
658 | if(p1->IsPIDOK(iPID,22))\r | |
659 | fhTaggedPID[iPID]->Fill(p1->Pt());\r | |
660 | }\r | |
661 | \r | |
662 | p1->SetTagged(kTRUE) ;\r | |
663 | } \r | |
664 | if(makePi02 && p2->IsTagged()){//Multiple tagging\r | |
665 | fhTaggedMult->Fill(p2->Pt());\r | |
666 | } \r | |
667 | if(makePi02 && !p2->IsTagged()){//How should be account for multiply tagged photons?\r | |
668 | fhTaggedAll->Fill(p2->Pt());\r | |
669 | p2->SetTagged(kTRUE) ;\r | |
670 | }\r | |
671 | \r | |
672 | //Now get use MC information\r | |
673 | //First chesk if this is true pi0 pair\r | |
674 | if(IsSamePi0(p1,p2)){ //Correctly tagged - from the same pi0\r | |
675 | // p1->SetTrueTagged(1);\r | |
676 | // p2->SetTrueTagged(1);\r | |
677 | if(makePi01)//Correctly tagged photons\r | |
678 | fhTaggedMCTrue->Fill(p1->Pt());\r | |
679 | else{ //Decay pair missed tagging \r | |
680 | fhMCMissedTagging->Fill(p1->Pt());\r | |
681 | fhMCMissedTaggingMass->Fill(invMass,p1->Pt()) ;\r | |
682 | //Clussify why missed tagging (todo)\r | |
683 | //Converted\r | |
684 | //Partner not a photon\r | |
685 | //Tagged not a photon\r | |
686 | //Just wrong inv.mass \r | |
687 | } \r | |
688 | if(makePi02)\r | |
689 | fhTaggedMCTrue->Fill(p2->Pt());\r | |
690 | else{ \r | |
691 | fhMCMissedTagging->Fill(p2->Pt());\r | |
692 | fhMCMissedTaggingMass->Fill(invMass,p2->Pt()) ;\r | |
693 | //Clussify why missed tagging (todo)\r | |
694 | //Converted\r | |
695 | //Partner not a photon\r | |
696 | //Tagged not a photon\r | |
697 | //Just wrong inv.mass \r | |
698 | } \r | |
699 | }\r | |
700 | else{//Fake tagged - not from the same pi0\r | |
701 | if(makePi01)//Fake pair\r | |
702 | fhMCFakeTagged->Fill(p1->Pt());\r | |
703 | if(makePi02)\r | |
704 | fhMCFakeTagged->Fill(p2->Pt());\r | |
705 | }\r | |
706 | }\r | |
707 | }\r | |
708 | \r | |
709 | //Fill Mixed InvMass distributions:\r | |
710 | TIter nextEv(fEventList) ;\r | |
711 | while(TClonesArray * event2 = static_cast<TClonesArray*>(nextEv())){\r | |
712 | Int_t nPhotons2 = event2->GetEntriesFast() ;\r | |
713 | for(Int_t i=0; i < inList ; i++){\r | |
714 | AliAODPWG4Particle * p1 = static_cast<AliAODPWG4Particle*>(fCaloPhotonsArr->At(i)) ;\r | |
715 | for(Int_t j=0; j < nPhotons2 ; j++){\r | |
716 | AliAODPWG4Particle * p2 = static_cast<AliAODPWG4Particle*>(event2->At(j)) ;\r | |
717 | Double_t invMass = p1->GetPairMass(p2);\r | |
718 | fhInvMassMixed->Fill(invMass,p1->Pt());\r | |
719 | fhInvMassMixed->Fill(invMass,p2->Pt());\r | |
720 | }\r | |
721 | }\r | |
722 | }\r | |
723 | \r | |
724 | /* if(inList==1){ //We have only one photon in PHOS, but still there can be missing partner for it\r | |
725 | AliAODPWG4Particle * p = static_cast<AliAODPWG4Particle*>(fCaloPhotonsArr->At(0));\r | |
726 | // if(p->IsMCTagged()){\r | |
727 | //should have pair but partner was not registered in PHOS\r | |
728 | // double pairpt=p->GetPairPt();\r | |
729 | // if(fDebug>2)\r | |
730 | // printf("pair not found for phot: E=%f, pair Pt=%f\n",p->Energy(),pairpt);\r | |
731 | // fhMCPartnerMissed->Fill(pairpt);\r | |
732 | // fhstra->Fill(p->Pt());\r | |
733 | // }\r | |
734 | }\r | |
735 | */\r | |
736 | \r | |
737 | //Remove old events\r | |
738 | fEventList->AddFirst(fCaloPhotonsArr);\r | |
739 | if(fEventList->GetSize() > 10){\r | |
740 | TClonesArray *tmp = static_cast <TClonesArray*> (fEventList->Last());\r | |
741 | fEventList->Remove(tmp);\r | |
742 | delete tmp;\r | |
743 | }\r | |
744 | \r | |
745 | PostData(1, fOutputList);\r | |
746 | }\r | |
747 | \r | |
748 | \r | |
749 | //______________________________________________________________________________\r | |
750 | void AliAnalysisTaskTaggedPhotons::Init()\r | |
751 | {\r | |
752 | // Intialisation of parameters\r | |
753 | AliInfo("Doing initialisation") ; \r | |
754 | SetPhotonId(0.9) ; \r | |
755 | SetMinEnergyCut(0.4);\r | |
756 | SetPi0MeanParameters(0.1377,-0.002566,0.001216,-0.0001256);\r | |
757 | SetPi0SigmaParameters(0.004508,0.005497,0.00000006);\r | |
758 | }\r | |
759 | \r | |
760 | //______________________________________________________________________________\r | |
761 | void AliAnalysisTaskTaggedPhotons::Terminate(Option_t *)\r | |
762 | {\r | |
763 | // Processing when the event loop is ended\r | |
764 | \r | |
765 | //Write everything to the file\r | |
766 | char outname[55];\r | |
767 | if(fPHOS)\r | |
768 | sprintf(outname,"Tagging_PHOS.root") ;\r | |
769 | else \r | |
770 | sprintf(outname,"Tagging_EMCAL.root") ;\r | |
771 | TFile *outfile = new TFile (outname,"recreate");\r | |
772 | \r | |
773 | fhRecAll->Write();\r | |
774 | fhRecAllArea1->Write();\r | |
775 | fhRecAllArea2->Write();\r | |
776 | fhRecAllArea3->Write();\r | |
777 | fhRecPhoton->Write();\r | |
778 | fhRecOther->Write();\r | |
779 | fhRecPhotonPID[0]->Write();\r | |
780 | fhRecPhotonPID[1]->Write();\r | |
781 | fhRecPhotonPID[2]->Write();\r | |
782 | fhRecPhotonPID[3]->Write();\r | |
783 | fhRecOtherPID[0]->Write();\r | |
784 | fhRecOtherPID[1]->Write();\r | |
785 | fhRecOtherPID[2]->Write();\r | |
786 | fhRecOtherPID[3]->Write();\r | |
787 | fhRecPhotPi0->Write();\r | |
788 | fhRecPhotEta->Write();\r | |
789 | fhRecPhotOmega->Write();\r | |
790 | fhRecPhotEtapr->Write();\r | |
791 | fhRecPhotConv->Write();\r | |
792 | fhRecPhotHadron->Write();\r | |
793 | fhRecPhotDirect->Write();\r | |
794 | fhRecPhotOther->Write();\r | |
795 | fhDecWMCPartner->Write();\r | |
796 | fhDecWMissedPartnerNotPhoton->Write();\r | |
797 | fhDecWMissedPartnerAll->Write();\r | |
798 | fhDecWMissedPartnerEmin->Write();\r | |
799 | fhDecWMissedPartnerConv->Write();\r | |
800 | fhDecWMissedPartnerGeom0->Write();\r | |
801 | fhDecWMissedPartnerGeom1->Write();\r | |
802 | fhDecWMissedPartnerGeom2->Write();\r | |
803 | fhDecWMissedPartnerGeom3->Write();\r | |
804 | fhPartnerMCReg->Write();\r | |
805 | fhPartnerMissedEmin->Write();\r | |
806 | fhPartnerMissedConv->Write();\r | |
807 | fhPartnerMissedGeo->Write();\r | |
808 | fhTaggedAll->Write();\r | |
809 | fhTaggedArea1->Write();\r | |
810 | fhTaggedArea2->Write();\r | |
811 | fhTaggedArea3->Write();\r | |
812 | \r | |
813 | fhTaggedPID[0]->Write();\r | |
814 | fhTaggedPID[1]->Write();\r | |
815 | fhTaggedPID[2]->Write();\r | |
816 | fhTaggedPID[3]->Write();\r | |
817 | fhTaggedMult->Write();\r | |
818 | fhTaggedMCTrue->Write();\r | |
819 | fhMCMissedTagging->Write();\r | |
820 | fhMCFakeTagged->Write();\r | |
821 | fhInvMassReal->Write();\r | |
822 | fhInvMassMixed->Write();\r | |
823 | fhMCMissedTaggingMass->Write();\r | |
824 | fhConversionRadius->Write();\r | |
825 | fhInteractionRadius->Write();\r | |
826 | fhEvents->Write();\r | |
827 | \r | |
828 | /*\r | |
829 | fhAllPhotons->Write() ;\r | |
830 | fhNotPhotons->Write() ;\r | |
831 | fhAllPhotonsPrimary->Write() ;\r | |
832 | fhNotPhotonsPrimary->Write() ;\r | |
833 | fhfakeNotPhotons->Write() ;\r | |
834 | \r | |
835 | fhTaggedPhotons->Write();\r | |
836 | fhfakeTaggedPhotons->Write();\r | |
837 | fhDecayNotTaggedPhotons->Write();\r | |
838 | fhstrangeNotTaggedPhotons->Write();\r | |
839 | fhstrangeNotTaggedPhotonsPair->Write();\r | |
840 | fhstrangeNotTaggedPhotonsRegCut->Write();\r | |
841 | fhstrangeNotTaggedPhotonsPairRegCut->Write();\r | |
842 | \r | |
843 | fhPi0DecayPhotonsPrimary->Write();\r | |
844 | fhEtaDecayPhotonsPrimary->Write();\r | |
845 | fhOmegaDecayPhotonsPrimary->Write();\r | |
846 | fhEtaSDecayPhotonsPrimary->Write();\r | |
847 | fhOtherDecayPhotonsPrimary->Write();\r | |
848 | fhDecayPhotonsPrimary->Write();\r | |
849 | fhConvertedPhotonsPrimary->Write();\r | |
850 | fhConvertedPhotonsPrimaryHadronsDecays->Write();\r | |
851 | fhCoordsConvertion->Write();\r | |
852 | fhCoordsConvertion2->Write();\r | |
853 | \r | |
854 | fhPHOSInvariantMassReal->Write();\r | |
855 | fhPHOSInvariantMassMixed->Write();\r | |
856 | \r | |
857 | fhPHOSPi0->Write();\r | |
858 | \r | |
859 | fhPi0DecayPhotonsGeomfake->Write();\r | |
860 | fhPi0DecayPhotonsTaggedPrimary->Write();\r | |
861 | fhPi0DecayPhotonsTaggedPrimaryPair->Write();\r | |
862 | fhPi0DecayPhotonsTaggedPrimaryRegCut->Write();\r | |
863 | fhPi0DecayPhotonsTaggedPrimaryPairRegCut->Write();\r | |
864 | \r | |
865 | fhPi0DecayPhotonsBigDecay->Write();\r | |
866 | fhPi0DecayPhotonsPConv->Write();\r | |
867 | fhPi0DecayPhotonsPGeo->Write();\r | |
868 | fhPi0DecayPhotonsPReg->Write();\r | |
869 | \r | |
870 | fhfakeTaggedPhotonsConv->Write();\r | |
871 | fhfakeTaggedPhotonsPID->Write();\r | |
872 | \r | |
873 | fhTrackRefCoords->Write();\r | |
874 | fhEvents->Write();\r | |
875 | */\r | |
876 | \r | |
877 | outfile->Close();\r | |
878 | \r | |
879 | }\r | |
880 | //______________________________________________________________________________\r | |
881 | Bool_t AliAnalysisTaskTaggedPhotons::IsInPi0Band(Double_t m, Double_t pt)\r | |
882 | {\r | |
883 | //Parameterization of the pi0 peak region\r | |
884 | Double_t mpi0_mean = fPi0Mean_p0 + fPi0Mean_p1 * pt + fPi0Mean_p2 * pt*pt + fPi0Mean_p3 * pt*pt*pt;\r | |
885 | Double_t mpi0_sigma = TMath::Sqrt(fPi0Sigma_p0 * fPi0Sigma_p0 / pt + fPi0Sigma_p1 * fPi0Sigma_p1 + fPi0Sigma_p2 * fPi0Sigma_p2 / pt / pt);\r | |
886 | \r | |
887 | return (m>mpi0_mean-2*mpi0_sigma && m>mpi0_mean+2*mpi0_sigma) ;\r | |
888 | }\r | |
889 | //______________________________________________________________________________\r | |
890 | Bool_t AliAnalysisTaskTaggedPhotons::IsSamePi0(AliAODPWG4Particle *p1, AliAODPWG4Particle *p2){\r | |
891 | //Looks through parents and finds if there was commont pi0 among ancestors\r | |
892 | \r | |
893 | if(!fStack)\r | |
894 | return kFALSE ; //can not say anything\r | |
895 | \r | |
896 | Int_t prim1 = p1->GetLabel();\r | |
897 | while(prim1!=-1){ \r | |
898 | Int_t prim2 = p2->GetLabel();\r | |
899 | while(prim2!=-1){ \r | |
900 | if(prim1==prim2){\r | |
901 | if(fStack->Particle(prim1)->GetPdgCode()==111)\r | |
902 | return kTRUE ;\r | |
903 | else\r | |
904 | return kFALSE ;\r | |
905 | }\r | |
906 | prim2=fStack->Particle(prim2)->GetFirstMother() ;\r | |
907 | }\r | |
908 | prim1=fStack->Particle(prim1)->GetFirstMother() ;\r | |
909 | }\r | |
910 | return kFALSE ;\r | |
911 | }\r | |
912 | //______________________________________________________________________________\r | |
913 | Int_t AliAnalysisTaskTaggedPhotons::GetFiducialArea(Float_t * pos){\r | |
914 | //calculates in which kind of fiducial area photon hit\r | |
915 | if(fPHOS){\r | |
916 | Double_t phi=TMath::ATan2(pos[1],pos[0]) ;\r | |
917 | Double_t z=pos[2] ; | |
918 | while(phi>TMath::TwoPi())phi-=TMath::TwoPi() ;\r | |
919 | while(phi<0.)phi+=TMath::TwoPi() ;\r | |
920 | //From active PHOS areat remove bands in 10 cm\r | |
921 | const Double_t kphi=TMath::ATan(10./460.) ; //angular band width\r | |
922 | Double_t dzMax=TMath::Ceil((fZmax-z)/10.) ;\r | |
923 | Double_t dzMin=TMath::Ceil((z-fZmin)/10.) ;\r | |
924 | Double_t dphiMax=TMath::Ceil((fPhimax-phi)/kphi);\r | |
925 | Double_t dphiMin=TMath::Ceil((phi-fPhimin)/kphi);\r | |
926 | return (Int_t)TMath::Min(TMath::Min(dzMax,dzMin),TMath::Min(dphiMax,dphiMin)); \r | |
927 | }\r | |
928 | else{//EMCAL\r | |
929 | //For the moment whole EMCAL is considered as area 1\r | |
930 | return 1 ;\r | |
931 | }\r | |
932 | }\r |