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12391a12 | 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 | /* $Id$ */ | |
16 | //_________________________________________________________________________ | |
17 | // Macros analyzing the ESD file | |
18 | // Use Case : | |
19 | // root> .L AnaESD.C++ | |
20 | // root> ana() --> prints the objects stored in ESD | |
21 | // | |
22 | // author : Yves Schutz (CERN/SUBATECH) | |
23 | // February 2004 | |
24 | //_________________________________________________________________________ | |
e82c1b8f | 25 | #if !defined(__CINT__) || defined(__MAKECINT__) |
baf5b427 | 26 | #include "TFile.h" |
c7f69b3a | 27 | #include "TMath.h" |
d6faca62 | 28 | #include "TH1D.h" |
baf5b427 | 29 | #include "AliPHOSGetter.h" |
2631352f | 30 | #include "AliPHOSGeometry.h" |
baf5b427 | 31 | #include "Riostream.h" |
32 | #include "AliESD.h" | |
c7f69b3a | 33 | #include "AliESDtrack.h" |
1d13ffb1 | 34 | #include "AliESDCaloTrack.h" |
35 | #include "AliEMCALRecParticle.h" | |
36 | #include "AliPHOSRecParticle.h" | |
c7f69b3a | 37 | #include "AliKalmanTrack.h" |
d31d94a8 | 38 | #include "AliPHOSAliEnFile.h" |
e82c1b8f | 39 | #endif |
baf5b427 | 40 | |
03b531f2 | 41 | void Match(TParticle * pp, AliESDtrack * cp, Double_t * dist) ; |
42 | TH1D * heta = new TH1D("heta", "Eta correlation", 100, 0., 360.) ; | |
43 | TH1D * hphi = new TH1D("hphi", "Phi correlation", 100, 0., 360.) ; | |
d31d94a8 | 44 | // Data Challenge identification |
45 | const TString kYear("2004") ; | |
46 | const TString kProd("02") ; | |
47 | const TString kVers("V4.01.Rev.00") ; | |
03b531f2 | 48 | |
d31d94a8 | 49 | Bool_t Ana(const TString type = "per5", const Int_t run = 1, const Int_t nOfEvt = 1) |
d6faca62 | 50 | { |
03b531f2 | 51 | Double_t dist[3] ; |
d31d94a8 | 52 | // get the LFN file name in the AliEn catalogue ; |
53 | AliPHOSAliEnFile lfn ; | |
54 | lfn.SetPath(kYear, kProd, kVers, type) ; | |
55 | lfn.SetRun(run) ; | |
d6faca62 | 56 | |
d31d94a8 | 57 | //loop over the events |
58 | Int_t nevt, evt = 0 ; | |
59 | for (nevt = 0 ; nevt < nOfEvt ; nevt++) { | |
60 | evt++ ; | |
61 | lfn.SetEvt(evt) ; | |
62 | TString fileName = lfn.GetLFN() ; | |
63 | ||
64 | if (fileName.IsNull()) { | |
65 | nevt-- ; | |
66 | continue ; | |
67 | } | |
68 | ||
69 | printf(">>>>>>>>>>>> Processing %s-%s/%s/%s : run # %d event # %d \n", | |
70 | kYear.Data(), kProd.Data(), kVers.Data(), type.Data(), run, evt) ; | |
71 | AliPHOSGetter * gime = AliPHOSGetter::Instance(fileName) ; | |
72 | ||
73 | Int_t nEvent = gime->MaxEvent() ; | |
74 | Int_t event ; | |
75 | AliESD * esd = 0 ; | |
76 | for (event = 0 ; event < nEvent; event++) { | |
77 | esd = gime->ESD(event) ; | |
78 | if (!esd) | |
79 | return kFALSE ; | |
80 | ||
81 | //esd->Print(); | |
82 | Int_t caloindex ; | |
83 | // Calorimeter tracks | |
84 | AliESDCaloTrack * ct ; | |
85 | for (caloindex = 0 ; caloindex < esd->GetNumberOfCaloTracks() ; caloindex++) { | |
86 | // get the calorimeter type of particles (PHOS or EMCAL) | |
87 | ct = esd->GetCaloTrack(caloindex) ; | |
88 | TParticle * part = ct->GetRecParticle() ; | |
89 | ||
90 | AliESDtrack * cp ; | |
91 | Int_t cpindex ; | |
92 | for (cpindex = 0 ; cpindex < esd->GetNumberOfTracks() ; cpindex++) { | |
93 | // get the charged tracks from central tracking | |
94 | cp = esd->GetTrack(cpindex) ; | |
95 | Match(part, cp, dist) ; | |
96 | } | |
97 | heta->Fill( dist[1] ) ; | |
98 | hphi->Fill( dist[2] ) ; | |
c7f69b3a | 99 | } |
100 | } | |
d6faca62 | 101 | } |
03b531f2 | 102 | heta->Draw() ; |
103 | //hphi->Draw() ; | |
d31d94a8 | 104 | return kTRUE ; |
d6faca62 | 105 | } |
03b531f2 | 106 | |
107 | void Match(TParticle * part, AliESDtrack * cp, Double_t * dist) | |
d6faca62 | 108 | { |
109 | // Calculates the distance (x,z) between the particle detected by PHOS and | |
110 | // the charged particle reconstructed by the global tracking | |
111 | ||
d6faca62 | 112 | |
113 | AliPHOSRecParticle * pp = dynamic_cast<AliPHOSRecParticle*>(part) ; | |
114 | AliEMCALRecParticle * ep = dynamic_cast<AliEMCALRecParticle*>(part) ; | |
115 | ||
116 | Int_t phN ; | |
117 | Double_t phZ, phX ; | |
118 | ||
119 | if (pp) { // it is a PHOS particle | |
03b531f2 | 120 | Double_t cpTheta, cpPhi ; |
121 | Double_t phTheta, phPhi ; | |
122 | cpTheta = cpPhi = phTheta = phPhi = 0. ; | |
123 | // cout << "PHOS particle # " << " pos (" | |
124 | // << pp->GetPos().X() << ", " << pp->GetPos().Y() << ", " << pp->GetPos().Z() << ")" << endl ; | |
d6faca62 | 125 | |
126 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; | |
127 | gime->PHOSGeometry()->ImpactOnEmc(*pp, phN, phZ, phX) ; | |
128 | Double_t xyzAtPHOS[3] ; | |
129 | cp->GetOuterXYZ(xyzAtPHOS) ; | |
130 | if ( (xyzAtPHOS[0] + xyzAtPHOS[1] + xyzAtPHOS[2]) != 0.) { //it has reached PHOS | |
131 | //the next check are only if we want high quality tracks | |
80427b5a | 132 | // ULong_t status = cp->GetStatus() ; |
133 | // if ((status & AliESDtrack::kTRDput)==0) | |
d6faca62 | 134 | // do not continue; |
80427b5a | 135 | // if ((status & AliESDtrack::kTRDStop)!=0) |
d6faca62 | 136 | // do not continue; |
03b531f2 | 137 | // cout << "Charged particle # " << " pos (" |
138 | // << xyzAtPHOS[0] << ", " << xyzAtPHOS[1] << ", " << xyzAtPHOS[2] << ")" << endl ; | |
d6faca62 | 139 | TVector3 poscp(xyzAtPHOS[0], xyzAtPHOS[1], xyzAtPHOS[2]) ; |
140 | Int_t cpN ; | |
141 | Double_t cpZ,cpX ; | |
142 | gime->PHOSGeometry()->ImpactOnEmc(poscp, cpN, cpZ, cpX) ; | |
143 | if (cpN) {// we are inside the PHOS acceptance | |
03b531f2 | 144 | // cout << "Charged Matching 1: " << cpN << " " << cpZ << " " << cpX << endl ; |
145 | // cout << "Charged Matching 2: " << phN << " " << phZ << " " << phX << endl ; | |
146 | dist[0] = TMath::Sqrt( (cpZ-phZ)*(cpZ-phZ) + (cpX-phX)*(cpX-phX)) ; | |
d6faca62 | 147 | } |
03b531f2 | 148 | phTheta = pp->Theta() ; |
149 | phPhi = pp->Phi() ; | |
d6faca62 | 150 | TParticle tempo ; |
151 | tempo.SetMomentum(xyzAtPHOS[0], xyzAtPHOS[1], xyzAtPHOS[2], 0.) ; | |
03b531f2 | 152 | cpTheta = tempo.Theta() ; |
153 | cpPhi = tempo.Phi() ; | |
d6faca62 | 154 | //cout << phTheta << " " << phPhi << " " << endl |
155 | //cout << cpTheta << " " << cpPhi-phPhi << " " << endl ; | |
1d13ffb1 | 156 | } |
03b531f2 | 157 | dist[1] = (phTheta - cpTheta)*TMath::RadToDeg() ; |
158 | dist[2] = (phPhi - cpPhi)*TMath::RadToDeg() ; | |
baf5b427 | 159 | } |
d6faca62 | 160 | |
161 | if (ep) { | |
162 | //cout << "EMCAL particle # " << endl ; | |
163 | } | |
baf5b427 | 164 | } |