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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 | // $Id$ | |
17 | ||
18 | /// \ingroup macros | |
19 | /// \file MUONTriggerEfficiency.C | |
20 | /// \brief Macro for checking trigger integrated efficiency for dimuons. | |
21 | /// | |
22 | /// The efficiency is calculated with respect to the 3/4 coincidence. | |
23 | /// | |
24 | /// \author Fabien Guerin, LPC Clermont-Ferrand, Jan. 2006 | |
25 | ||
26 | #if !defined(__CINT__) || defined(__MAKECINT__) | |
27 | // ROOT includes | |
28 | #include "TBranch.h" | |
29 | #include "TClonesArray.h" | |
30 | #include "TObject.h" | |
31 | #include "TFile.h" | |
32 | #include "TH1.h" | |
33 | #include "TH2.h" | |
34 | #include "TTree.h" | |
35 | #include "TParticle.h" | |
36 | ||
37 | // STEER includes | |
38 | #include "AliRun.h" | |
39 | #include "AliRunLoader.h" | |
40 | #include "AliHeader.h" | |
41 | #include "AliLoader.h" | |
42 | #include "AliStack.h" | |
43 | #include "AliCDBManager.h" | |
44 | ||
45 | // MUON includes | |
46 | #include "AliMUON.h" | |
47 | #include "AliMUONHit.h" | |
48 | #include "AliMUONConstants.h" | |
49 | #include "AliMUONDigit.h" | |
50 | #include "AliMUONGlobalTrigger.h" | |
51 | #include "AliMUONTrack.h" | |
52 | ||
53 | #include "AliMUONDataInterface.h" | |
54 | #include "AliMUONMCDataInterface.h" | |
55 | #include "AliMUONVHitStore.h" | |
56 | #include "AliMUONVTriggerStore.h" | |
57 | ||
58 | #endif | |
59 | ||
60 | // Upsilon(1S) | |
61 | ||
62 | ||
63 | void MUONTriggerEfficiency(const char* filenameSim="galice_sim.root", | |
64 | const char* filenameRec="galice.root", | |
65 | Bool_t readFromRP = 0) | |
66 | { | |
67 | ||
68 | // Set default CDB storage | |
69 | AliCDBManager* man = AliCDBManager::Instance(); | |
70 | man->SetDefaultStorage("local://$ALICE_ROOT/OCDB"); | |
71 | ||
72 | // output file | |
73 | ||
74 | AliMUONMCDataInterface diSim(filenameSim); | |
75 | AliMUONDataInterface diRec(filenameRec); | |
76 | ||
77 | if (!diSim.IsValid()) | |
78 | { | |
79 | cerr << "Cannot access " << filenameSim << endl; | |
80 | return; | |
81 | } | |
82 | ||
83 | if (!diRec.IsValid()) | |
84 | { | |
85 | cerr << "Cannot access " << filenameRec << endl; | |
86 | return; | |
87 | } | |
88 | ||
89 | FILE* fdat = fopen("MUONTriggerEfficiency.out","w"); | |
90 | if (!fdat) | |
91 | { | |
92 | cerr << "Cannot create output file" << endl; | |
93 | return; | |
94 | } | |
95 | ||
96 | Int_t coincmuon,muonlpt,muonhpt; | |
97 | Int_t CoincMuPlus,CoincMuMinus; | |
98 | coincmuon=0; | |
99 | muonlpt=0; | |
100 | muonhpt=0; | |
101 | ||
102 | Int_t nevents = diSim.NumberOfEvents(); | |
103 | ||
104 | for (Int_t ievent=0; ievent<nevents; ++ievent) | |
105 | { | |
106 | CoincMuPlus=0; | |
107 | CoincMuMinus=0; | |
108 | ||
109 | if (ievent%1000==0) printf("\t Event = %d\n",ievent); | |
110 | ||
111 | // Hits | |
112 | ||
113 | Int_t NbHits[2][4]; | |
114 | for (Int_t j=0; j<2; j++) | |
115 | { | |
116 | for (Int_t jj=0; jj<4; jj++) | |
117 | { | |
118 | NbHits[j][jj]=0; | |
119 | } | |
120 | } | |
121 | ||
122 | Int_t ntracks = (Int_t) diSim.NumberOfTracks(ievent); | |
123 | ||
124 | for ( Int_t itrack=0; itrack<ntracks; ++itrack ) | |
125 | { | |
126 | AliMUONVHitStore* hitStore = diSim.HitStore(ievent,itrack); | |
127 | AliMUONHit* mHit; | |
128 | TIter next(hitStore->CreateIterator()); | |
129 | ||
130 | while ( ( mHit = static_cast<AliMUONHit*>(next()) ) ) | |
131 | { | |
132 | Int_t Nch = mHit->Chamber(); | |
133 | Int_t hittrack = mHit->Track(); | |
134 | Float_t IdPart = mHit->Particle(); | |
135 | ||
136 | for (Int_t j=0;j<4;j++) | |
137 | { | |
138 | Int_t kch=11+j; | |
139 | if (hittrack==1 || hittrack==2) | |
140 | { | |
141 | if (Nch==kch && IdPart==-13 && NbHits[0][j]==0) NbHits[0][j]++; | |
142 | if (Nch==kch && IdPart==13 && NbHits[1][j]==0) NbHits[1][j]++; | |
143 | } | |
144 | } | |
145 | } | |
146 | } // end track loop | |
147 | ||
148 | // 3/4 coincidence | |
149 | Int_t SumNbHits=NbHits[0][0]+NbHits[0][1]+NbHits[0][2]+NbHits[0][3]; | |
150 | if (SumNbHits==3 || SumNbHits==4) CoincMuPlus=1; | |
151 | ||
152 | SumNbHits=NbHits[1][0]+NbHits[1][1]+NbHits[1][2]+NbHits[1][3]; | |
153 | if (SumNbHits==3 || SumNbHits==4) CoincMuMinus=1; | |
154 | ||
155 | if (CoincMuPlus==1 && CoincMuMinus==1) coincmuon++; | |
156 | ||
157 | TString tree("D"); | |
158 | if ( readFromRP ) tree = "R"; | |
159 | ||
160 | AliMUONVTriggerStore* triggerStore = diRec.TriggerStore(ievent,tree.Data()); | |
161 | ||
162 | AliMUONGlobalTrigger* gloTrg = triggerStore->Global(); | |
163 | ||
164 | if (gloTrg->PairUnlikeLpt()>=1) muonlpt++; | |
165 | if (gloTrg->PairUnlikeHpt()>=1) muonhpt++; | |
166 | ||
167 | } // end loop on event | |
168 | ||
169 | // calculate efficiency with as a ref. at least 3/4 planes fired | |
170 | Float_t efficiencylpt,efficiencyhpt; | |
171 | Double_t coincmu,lptmu,hptmu; | |
172 | Float_t error; | |
173 | coincmu=Double_t(coincmuon); | |
174 | lptmu=Double_t(muonlpt); | |
175 | hptmu=Double_t(muonhpt); | |
176 | ||
177 | // output | |
178 | fprintf(fdat,"\n"); | |
179 | fprintf(fdat," Number of events = %d \n",nevents); | |
180 | fprintf(fdat," Number of events with 3/4 coinc = %d \n",coincmuon); | |
181 | fprintf(fdat," Nomber of dimuons with 3/4 coinc Lpt cut = %d \n",muonlpt); | |
182 | fprintf(fdat," Number of dimuons with 3/4 coinc Hpt cut = %d \n",muonhpt); | |
183 | fprintf(fdat,"\n"); | |
184 | ||
185 | efficiencylpt=lptmu/coincmu; | |
186 | error=efficiencylpt*TMath::Sqrt((lptmu+coincmu)/(lptmu*coincmu)); | |
187 | fprintf(fdat," Efficiency Lpt cut = %4.4f +/- %4.4f\n",efficiencylpt,error); | |
188 | ||
189 | efficiencyhpt=hptmu/coincmu; | |
190 | error=efficiencyhpt*TMath::Sqrt((hptmu+coincmu)/(hptmu*coincmu)); | |
191 | fprintf(fdat," Efficiency Hpt cut = %4.4f +/- %4.4f\n",efficiencyhpt,error); | |
192 | ||
193 | ||
194 | fclose(fdat); | |
195 | } | |
196 | ||
197 | ||
198 | ||
199 | ||
200 |