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b8dc484b | 1 | /************************************************************************** |
48217459 | 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 | **************************************************************************/ | |
b8dc484b | 15 | |
e54bf126 | 16 | // $Id$ |
17 | ||
18 | /// \ingroup macros | |
19 | /// \file MUONRecoCheck.C | |
20 | /// \brief Utility macro to check the muon reconstruction. | |
21 | /// | |
22 | /// Reconstructed tracks are compared to reference tracks. The reference tracks | |
23 | /// are built from AliTrackReference for the hit in chamber (0..9) and from | |
24 | /// kinematics (TreeK) for the vertex parameters. | |
25 | /// | |
c687aa97 | 26 | /// \author Jean-Pierre Cussonneau, Philippe Pillot, Subatech |
e54bf126 | 27 | |
b8dc484b | 28 | // ROOT includes |
e1fe81b8 | 29 | #include <Riostream.h> |
f202486b | 30 | #include "TMath.h" |
b8dc484b | 31 | #include "TClonesArray.h" |
32 | #include "TH1.h" | |
f202486b | 33 | #include "TH2.h" |
c687aa97 | 34 | #include "TH3.h" |
f202486b | 35 | #include "TGraphErrors.h" |
e1fe81b8 | 36 | #include "TGraphAsymmErrors.h" |
f202486b | 37 | #include "TF1.h" |
b8dc484b | 38 | #include "TFile.h" |
c687aa97 | 39 | #include "TCanvas.h" |
40 | #include "TLegend.h" | |
e1fe81b8 | 41 | #include "TGeoManager.h" |
b8dc484b | 42 | |
43 | // STEER includes | |
a99c3449 | 44 | #include "AliCDBManager.h" |
e1fe81b8 | 45 | #include "AliGeomManager.h" |
c687aa97 | 46 | #include "AliLog.h" |
b8dc484b | 47 | |
48 | // MUON includes | |
a99c3449 | 49 | #include "AliMUONCDB.h" |
b8dc484b | 50 | #include "AliMUONConstants.h" |
51 | #include "AliMUONTrack.h" | |
52 | #include "AliMUONRecoCheck.h" | |
53 | #include "AliMUONTrackParam.h" | |
a99c3449 | 54 | #include "AliMUONRecoParam.h" |
48217459 | 55 | #include "AliMUONVTrackStore.h" |
f202486b | 56 | #include "AliMUONVCluster.h" |
c687aa97 | 57 | #include "AliMUONTrackExtrap.h" |
e1fe81b8 | 58 | #include "AliMUONESDInterface.h" |
9f164762 | 59 | #include "AliMUONVTriggerTrackStore.h" |
60 | #include "AliMUONTriggerTrack.h" | |
b8dc484b | 61 | |
c687aa97 | 62 | Double_t langaufun(Double_t *x, Double_t *par); |
e1fe81b8 | 63 | void FitGausResVsMom(TH2* h, Int_t nBins, const Double_t mean0, const Double_t sigma0, const char* fitting, TGraphAsymmErrors* gMean, TGraphAsymmErrors* gSigma); |
64 | void FitPDCAVsMom(TH2* h, Int_t nBins, const char* fitting, TGraphAsymmErrors* gSigma); | |
65 | TCanvas* DrawVsAng(const char* name, const char* title, TH1* h1, TH2* h2); | |
66 | TCanvas* DrawVsPos(const char* name, const char* title, TH2* h1, TH2* h2, TH2* h3); | |
67 | TCanvas* DrawResMomVsMom(const char* name, const char* title, TH2* h, Int_t nBins, TF1* f2 = 0x0, const char* fitting = ""); | |
c687aa97 | 68 | |
69 | //------------------------------------------------------------------------------------ | |
70 | void MUONRecoCheck (Int_t nEvent = -1, const char* pathSim="./generated/", const char* esdFileName="AliESDs.root", | |
e1fe81b8 | 71 | const char* ocdbPath = "local://$ALICE_ROOT/OCDB", Int_t absorberRegion = -1) |
e54bf126 | 72 | { |
e1fe81b8 | 73 | /// Associate the reconstructed tracks with the simulated ones and check the quality of the reconstruction |
74 | /// (tracking/trigger efficiency; momentum, slope,... resolutions at first cluster and at vertex; cluster resolution). | |
75 | /// You can limit the calculation of track resolution at vertex to the tracks crossing the absorber in a given region | |
76 | /// with the flag "absorberRegion": -1=all, 1=[2,3]deg, 2=[3,10]deg. | |
77 | ||
78 | Double_t aAbsLimits[2]; | |
79 | if (absorberRegion > -1) { | |
80 | if (absorberRegion == 1) { | |
81 | aAbsLimits[0] = 2.; | |
82 | aAbsLimits[1] = 3.; | |
83 | } else if (absorberRegion == 2) { | |
84 | aAbsLimits[0] = 3.; | |
85 | aAbsLimits[1] = 10.; | |
86 | } else { | |
87 | cout<<"Unknown absorber region. Valid choices are: -1=all, 1=[2,3]deg, 2=[3,10]deg"<<endl; | |
88 | return; | |
89 | } | |
90 | } else { | |
91 | aAbsLimits[0] = 0.; | |
92 | aAbsLimits[1] = 90.; | |
93 | } | |
b8dc484b | 94 | |
c687aa97 | 95 | AliLog::SetClassDebugLevel("AliMCEvent",-1); |
96 | ||
97 | // ###################################### define histograms ###################################### // | |
b8dc484b | 98 | // File for histograms and histogram booking |
99 | TFile *histoFile = new TFile("MUONRecoCheck.root", "RECREATE"); | |
48217459 | 100 | |
9f164762 | 101 | TH1F *hReconstructible = new TH1F("hReconstructible"," Nb of reconstructible tracks / evt",15,-0.5,14.5); |
b8dc484b | 102 | TH1F *hReco = new TH1F("hReco"," Nb of reconstructed tracks / evt",15,-0.5,14.5); |
96ebe67e | 103 | TH1F *hNClusterComp = new TH1F("hNClusterComp"," Nb of compatible clusters / track ",15,-0.5,14.5); |
b8dc484b | 104 | TH1F *hTrackRefID = new TH1F("hTrackRefID"," track reference ID ",100,-0.5,99.5); |
9f164762 | 105 | TH1F *hTriggerable = new TH1F("hTriggerable"," Nb of triggerable tracks / evt",15,-0.5,14.5); |
106 | TH1F *hTriggered = new TH1F("hTriggered"," Nb of triggered tracks / evt",15,-0.5,14.5); | |
b8dc484b | 107 | |
c687aa97 | 108 | // momentum resolution at vertex |
109 | histoFile->mkdir("momentumAtVertex","momentumAtVertex"); | |
110 | histoFile->cd("momentumAtVertex"); | |
111 | ||
112 | const Int_t pNBins = 30; | |
113 | const Double_t pEdges[2] = {0., 300.}; | |
114 | const Int_t deltaPAtVtxNBins = 250; | |
115 | const Double_t deltaPAtVtxEdges[2] = {-35., 15.}; | |
116 | ||
117 | TH1F *hResMomVertex = new TH1F("hResMomVertex"," delta P at vertex;#Delta_{p} (GeV/c)",deltaPAtVtxNBins,deltaPAtVtxEdges[0],deltaPAtVtxEdges[1]); | |
118 | ||
119 | TH2D *hResMomVertexVsMom = new TH2D("hResMomVertexVsMom","#Delta_{p} at vertex versus p;p (GeV/c);#Delta_{p} (GeV/c)",2*pNBins,pEdges[0],pEdges[1],deltaPAtVtxNBins,deltaPAtVtxEdges[0],deltaPAtVtxEdges[1]); | |
120 | TH2D *hResMomVertexVsMom_2_3_Deg = new TH2D("hResMomVertexVsMom_2_3_Deg","#Delta_{p} at vertex versus p for tracks between 2 and 3 degrees at absorber end;p (GeV/c);#Delta_{p} (GeV/c)",2*pNBins,pEdges[0],pEdges[1],deltaPAtVtxNBins,deltaPAtVtxEdges[0],deltaPAtVtxEdges[1]); | |
121 | TH2D *hResMomVertexVsMom_3_10_Deg = new TH2D("hResMomVertexVsMom_3_10_Deg","#Delta_{p} at vertex versus p for tracks between 3 and 10 degrees at absorber end;p (GeV/c);#Delta_{p} (GeV/c)",2*pNBins,pEdges[0],pEdges[1],deltaPAtVtxNBins,deltaPAtVtxEdges[0],deltaPAtVtxEdges[1]); | |
122 | TH2D *hResMomVertexVsMom_0_2_DegMC = new TH2D("hResMomVertexVsMom_0_2_DegMC","#Delta_{p} at vertex versus p for tracks with MC angle below 2 degrees;p (GeV/c);#Delta_{p} (GeV/c)",2*pNBins,pEdges[0],pEdges[1],deltaPAtVtxNBins/10,deltaPAtVtxEdges[0],deltaPAtVtxEdges[1]); | |
123 | ||
e1fe81b8 | 124 | TH2D *hResMomVertexVsPosAbsEnd_0_2_DegMC = new TH2D("hResMomVertexVsPosAbsEnd_0_2_DegMC","#Delta_{p} at vertex versus track position at absorber end for tracks with MC angle < 2 degrees;position (cm);#Delta_{p} (GeV/c)",1000,0.,100.,deltaPAtVtxNBins,deltaPAtVtxEdges[0],deltaPAtVtxEdges[1]); |
125 | TH2D *hResMomVertexVsPosAbsEnd_2_3_DegMC = new TH2D("hResMomVertexVsPosAbsEnd_2_3_DegMC","#Delta_{p} at vertex versus track position at absorber end for tracks with MC angle in [2,3[ degrees;position (cm);#Delta_{p} (GeV/c)",1000,0.,100.,deltaPAtVtxNBins,deltaPAtVtxEdges[0],deltaPAtVtxEdges[1]); | |
126 | TH2D *hResMomVertexVsPosAbsEnd_3_10_DegMC = new TH2D("hResMomVertexVsPosAbsEnd_3_10_DegMC","#Delta_{p} at vertex versus track position at absorber end for tracks with MC angle in [3,10[ degrees;position (cm);#Delta_{p} (GeV/c)",1000,0.,100.,deltaPAtVtxNBins,deltaPAtVtxEdges[0],deltaPAtVtxEdges[1]); | |
c687aa97 | 127 | |
128 | TH2D *hResMomVertexVsAngle = new TH2D("hResMomVertexVsAngle","#Delta_{p} at vertex versus track position at absorber end converted to degrees;angle (Deg);#Delta_{p} (GeV/c)",10,0.,10.,deltaPAtVtxNBins,deltaPAtVtxEdges[0],deltaPAtVtxEdges[1]); | |
129 | TH2D *hResMomVertexVsMCAngle = new TH2D("hResMomVertexVsMCAngle","#Delta_{p} at vertex versus MC angle;MC angle (Deg);#Delta_{p} (GeV/c)",10,0.,10.,deltaPAtVtxNBins,deltaPAtVtxEdges[0],deltaPAtVtxEdges[1]); | |
130 | TH3D *hResMomVertexVsAngleVsMom = new TH3D("hResMomVertexVsAngleVsMom","#Delta_{p} at vertex versus track position at absorber end converted to degrees versus momentum;p (GeV/c);angle (Deg);#Delta_{p} (GeV/c)",2*pNBins,pEdges[0],pEdges[1],100,0.,10.,deltaPAtVtxNBins,deltaPAtVtxEdges[0],deltaPAtVtxEdges[1]); | |
131 | ||
e1fe81b8 | 132 | TGraphAsymmErrors* gMeanResMomVertexVsMom = new TGraphAsymmErrors(pNBins); |
c687aa97 | 133 | gMeanResMomVertexVsMom->SetName("gMeanResMomVertexVsMom"); |
134 | gMeanResMomVertexVsMom->SetTitle("<#Delta_{p}> at vertex versus p;p (GeV/c);<#Delta_{p}> (GeV/c)"); | |
e1fe81b8 | 135 | TGraphAsymmErrors* gMostProbResMomVertexVsMom = new TGraphAsymmErrors(pNBins); |
c687aa97 | 136 | gMostProbResMomVertexVsMom->SetName("gMostProbResMomVertexVsMom"); |
137 | gMostProbResMomVertexVsMom->SetTitle("Most probable #Delta_{p} at vertex versus p;p (GeV/c);Most prob. #Delta_{p} (GeV/c)"); | |
e1fe81b8 | 138 | TGraphAsymmErrors* gSigmaResMomVertexVsMom = new TGraphAsymmErrors(pNBins); |
c687aa97 | 139 | gSigmaResMomVertexVsMom->SetName("gSigmaResMomVertexVsMom"); |
e1fe81b8 | 140 | gSigmaResMomVertexVsMom->SetTitle("#sigma_{p}/p at vertex versus p;p (GeV/c);#sigma_{p}/p (%)"); |
c687aa97 | 141 | |
142 | // momentum resolution at first cluster | |
143 | histoFile->mkdir("momentumAtFirstCluster","momentumAtFirstCluster"); | |
144 | histoFile->cd("momentumAtFirstCluster"); | |
145 | ||
146 | const Int_t deltaPAtFirstClNBins = 500; | |
147 | const Double_t deltaPAtFirstClEdges[2] = {-25., 25.}; | |
148 | ||
149 | TH1F *hResMomFirstCluster = new TH1F("hResMomFirstCluster"," delta P at first cluster;#Delta_{p} (GeV/c)",deltaPAtFirstClNBins,deltaPAtFirstClEdges[0],deltaPAtFirstClEdges[1]); | |
150 | TH2D *hResMomFirstClusterVsMom = new TH2D("hResMomFirstClusterVsMom","#Delta_{p} at first cluster versus p;p (GeV/c);#Delta_{p} (GeV/c)",2*pNBins,pEdges[0],pEdges[1],deltaPAtFirstClNBins,deltaPAtFirstClEdges[0],deltaPAtFirstClEdges[1]); | |
151 | ||
e1fe81b8 | 152 | TGraphAsymmErrors* gMeanResMomFirstClusterVsMom = new TGraphAsymmErrors(pNBins); |
c687aa97 | 153 | gMeanResMomFirstClusterVsMom->SetName("gMeanResMomFirstClusterVsMom"); |
154 | gMeanResMomFirstClusterVsMom->SetTitle("<#Delta_{p}> at first cluster versus p;p (GeV/c);<#Delta_{p}> (GeV/c)"); | |
e1fe81b8 | 155 | TGraphAsymmErrors* gSigmaResMomFirstClusterVsMom = new TGraphAsymmErrors(pNBins); |
c687aa97 | 156 | gSigmaResMomFirstClusterVsMom->SetName("gSigmaResMomFirstClusterVsMom"); |
e1fe81b8 | 157 | gSigmaResMomFirstClusterVsMom->SetTitle("#sigma_{p}/p at first cluster versus p;p (GeV/c);#sigma_{p}/p (%)"); |
158 | ||
159 | // angular resolution at vertex | |
160 | histoFile->mkdir("slopesAtVertex","slopesAtVertex"); | |
161 | histoFile->cd("slopesAtVertex"); | |
162 | ||
163 | const Int_t deltaSlopeAtVtxNBins = 500; | |
164 | const Double_t deltaSlopeAtVtxEdges[2] = {-0.05, 0.05}; | |
165 | ||
166 | TH1F *hResSlopeXVertex = new TH1F("hResSlopeXVertex","#Delta_{slope_{X}} at vertex;#Delta_{slope_{X}}", deltaSlopeAtVtxNBins, deltaSlopeAtVtxEdges[0], deltaSlopeAtVtxEdges[1]); | |
167 | TH1F *hResSlopeYVertex = new TH1F("hResSlopeYVertex","#Delta_{slope_{Y}} at vertex;#Delta_{slope_{Y}}", deltaSlopeAtVtxNBins, deltaSlopeAtVtxEdges[0], deltaSlopeAtVtxEdges[1]); | |
168 | TH2D *hResSlopeXVertexVsMom = new TH2D("hResSlopeXVertexVsMom","#Delta_{slope_{X}} at vertex versus p;p (GeV/c);#Delta_{slope_{X}}",2*pNBins,pEdges[0],pEdges[1], deltaSlopeAtVtxNBins, deltaSlopeAtVtxEdges[0], deltaSlopeAtVtxEdges[1]); | |
169 | TH2D *hResSlopeYVertexVsMom = new TH2D("hResSlopeYVertexVsMom","#Delta_{slope_{Y}} at vertex versus p;p (GeV/c);#Delta_{slope_{Y}}",2*pNBins,pEdges[0],pEdges[1], deltaSlopeAtVtxNBins, deltaSlopeAtVtxEdges[0], deltaSlopeAtVtxEdges[1]); | |
170 | ||
171 | TH2D *hResSlopeXVertexVsPosAbsEnd_0_2_DegMC = new TH2D("hResSlopeXVertexVsPosAbsEnd_0_2_DegMC","#Delta_{slope_{X}} at vertex versus track position at absorber end for tracks with MC angle < 2 degrees;position (cm);#Delta_{slope_{X}}",1000,0.,100.,deltaSlopeAtVtxNBins, deltaSlopeAtVtxEdges[0], deltaSlopeAtVtxEdges[1]); | |
172 | TH2D *hResSlopeYVertexVsPosAbsEnd_0_2_DegMC = new TH2D("hResSlopeYVertexVsPosAbsEnd_0_2_DegMC","#Delta_{slope_{Y}} at vertex versus track position at absorber end for tracks with MC angle < 2 degrees;position (cm);#Delta_{slope_{Y}}",1000,0.,100.,deltaSlopeAtVtxNBins, deltaSlopeAtVtxEdges[0], deltaSlopeAtVtxEdges[1]); | |
173 | TH2D *hResSlopeXVertexVsPosAbsEnd_2_3_DegMC = new TH2D("hResSlopeXVertexVsPosAbsEnd_2_3_DegMC","#Delta_{slope_{X}} at vertex versus track position at absorber end for tracks with MC angle in [2,3[ degrees;position (cm);#Delta_{slope_{X}}",1000,0.,100.,deltaSlopeAtVtxNBins, deltaSlopeAtVtxEdges[0], deltaSlopeAtVtxEdges[1]); | |
174 | TH2D *hResSlopeYVertexVsPosAbsEnd_2_3_DegMC = new TH2D("hResSlopeYVertexVsPosAbsEnd_2_3_DegMC","#Delta_{slope_{Y}} at vertex versus track position at absorber end for tracks with MC angle in [2,3[ degrees;position (cm);#Delta_{slope_{Y}}",1000,0.,100.,deltaSlopeAtVtxNBins, deltaSlopeAtVtxEdges[0], deltaSlopeAtVtxEdges[1]); | |
175 | TH2D *hResSlopeXVertexVsPosAbsEnd_3_10_DegMC = new TH2D("hResSlopeXVertexVsPosAbsEnd_3_10_DegMC","#Delta_{slope_{X}} at vertex versus track position at absorber end for tracks with MC angle in [3,10[ degrees;position (cm);#Delta_{slope_{X}}",1000,0.,100.,deltaSlopeAtVtxNBins, deltaSlopeAtVtxEdges[0], deltaSlopeAtVtxEdges[1]); | |
176 | TH2D *hResSlopeYVertexVsPosAbsEnd_3_10_DegMC = new TH2D("hResSlopeYVertexVsPosAbsEnd_3_10_DegMC","#Delta_{slope_{Y}} at vertex versus track position at absorber end for tracks with MC angle in [3,10[ degrees;position (cm);#Delta_{slope_{Y}}",1000,0.,100.,deltaSlopeAtVtxNBins, deltaSlopeAtVtxEdges[0], deltaSlopeAtVtxEdges[1]); | |
177 | ||
178 | TH2D *hResSlopeXVertexVsAngle = new TH2D("hResSlopeXVertexVsAngle","#Delta_{slope_{X}} at vertex versus track position at absorber end converted to degrees;angle (Deg);#Delta_{slope_{X}}",10,0.,10.,deltaSlopeAtVtxNBins, deltaSlopeAtVtxEdges[0], deltaSlopeAtVtxEdges[1]); | |
179 | TH2D *hResSlopeYVertexVsAngle = new TH2D("hResSlopeYVertexVsAngle","#Delta_{slope_{Y}} at vertex versus track position at absorber end converted to degrees;angle (Deg);#Delta_{slope_{Y}}",10,0.,10.,deltaSlopeAtVtxNBins, deltaSlopeAtVtxEdges[0], deltaSlopeAtVtxEdges[1]); | |
180 | TH2D *hResSlopeXVertexVsMCAngle = new TH2D("hResSlopeXVertexVsMCAngle","#Delta_{slope_{X}} at vertex versus MC angle;MC angle (Deg);#Delta_{slope_{X}}",10,0.,10.,deltaSlopeAtVtxNBins, deltaSlopeAtVtxEdges[0], deltaSlopeAtVtxEdges[1]); | |
181 | TH2D *hResSlopeYVertexVsMCAngle = new TH2D("hResSlopeYVertexVsMCAngle","#Delta_{slope_{Y}} at vertex versus MC angle;MC angle (Deg);#Delta_{slope_{Y}}",10,0.,10.,deltaSlopeAtVtxNBins, deltaSlopeAtVtxEdges[0], deltaSlopeAtVtxEdges[1]); | |
182 | ||
183 | TGraphAsymmErrors* gMeanResSlopeXVertexVsMom = new TGraphAsymmErrors(pNBins); | |
184 | gMeanResSlopeXVertexVsMom->SetName("gMeanResSlopeXVertexVsMom"); | |
185 | gMeanResSlopeXVertexVsMom->SetTitle("<#Delta_{slope_{X}}> at vertex versus p;p (GeV/c);<#Delta_{slope_{X}}>"); | |
186 | TGraphAsymmErrors* gSigmaResSlopeXVertexVsMom = new TGraphAsymmErrors(pNBins); | |
187 | gSigmaResSlopeXVertexVsMom->SetName("gSigmaResSlopeXVertexVsMom"); | |
188 | gSigmaResSlopeXVertexVsMom->SetTitle("#sigma_{slope_{X}} at vertex versus p;p (GeV/c);#sigma_{slope_{X}}"); | |
189 | TGraphAsymmErrors* gMeanResSlopeYVertexVsMom = new TGraphAsymmErrors(pNBins); | |
190 | gMeanResSlopeYVertexVsMom->SetName("gMeanResSlopeYVertexVsMom"); | |
191 | gMeanResSlopeYVertexVsMom->SetTitle("<#Delta_{slope_{Y}}> at vertex versus p;p (GeV/c);<#Delta_{slope_{Y}}>"); | |
192 | TGraphAsymmErrors* gSigmaResSlopeYVertexVsMom = new TGraphAsymmErrors(pNBins); | |
193 | gSigmaResSlopeYVertexVsMom->SetName("gSigmaResSlopeYVertexVsMom"); | |
194 | gSigmaResSlopeYVertexVsMom->SetTitle("#sigma_{slope_{Y}} at vertex versus p;p (GeV/c);#sigma_{slope_{Y}}"); | |
195 | ||
196 | // angular resolution at first cluster | |
197 | histoFile->mkdir("slopesAtFirstCluster","slopesAtFirstCluster"); | |
198 | histoFile->cd("slopesAtFirstCluster"); | |
199 | ||
200 | const Int_t deltaSlopeAtFirstClNBins = 500; | |
201 | const Double_t deltaSlopeAtFirstClEdges[2] = {-0.01, 0.01}; | |
202 | ||
203 | TH1F *hResSlopeXFirstCluster = new TH1F("hResSlopeXFirstCluster","#Delta_{slope_{X}} at first cluster;#Delta_{slope_{X}}", deltaSlopeAtFirstClNBins, deltaSlopeAtFirstClEdges[0], deltaSlopeAtFirstClEdges[1]); | |
204 | TH2D *hResSlopeXFirstClusterVsMom = new TH2D("hResSlopeXFirstClusterVsMom","#Delta_{slope_{X}} at first cluster versus p;p (GeV/c);#Delta_{slope_{X}}",2*pNBins,pEdges[0],pEdges[1], deltaSlopeAtFirstClNBins, deltaSlopeAtFirstClEdges[0], deltaSlopeAtFirstClEdges[1]); | |
205 | TH1F *hResSlopeYFirstCluster = new TH1F("hResSlopeYFirstCluster","#Delta_{slope_{Y}} at first cluster;#Delta_{slope_{Y}}", deltaSlopeAtFirstClNBins, deltaSlopeAtFirstClEdges[0], deltaSlopeAtFirstClEdges[1]); | |
206 | TH2D *hResSlopeYFirstClusterVsMom = new TH2D("hResSlopeYFirstClusterVsMom","#Delta_{slope_{Y}} at first cluster versus p;p (GeV/c);#Delta_{slope_{Y}}",2*pNBins,pEdges[0],pEdges[1], deltaSlopeAtFirstClNBins, deltaSlopeAtFirstClEdges[0], deltaSlopeAtFirstClEdges[1]); | |
207 | ||
208 | TGraphAsymmErrors* gMeanResSlopeXFirstClusterVsMom = new TGraphAsymmErrors(pNBins); | |
209 | gMeanResSlopeXFirstClusterVsMom->SetName("gMeanResSlopeXFirstClusterVsMom"); | |
210 | gMeanResSlopeXFirstClusterVsMom->SetTitle("<#Delta_{slope_{X}}> at first cluster versus p;p (GeV/c);<#Delta_{slope_{X}}>"); | |
211 | TGraphAsymmErrors* gSigmaResSlopeXFirstClusterVsMom = new TGraphAsymmErrors(pNBins); | |
212 | gSigmaResSlopeXFirstClusterVsMom->SetName("gSigmaResSlopeXFirstClusterVsMom"); | |
213 | gSigmaResSlopeXFirstClusterVsMom->SetTitle("#sigma_{slope_{X}} at first cluster versus p;p (GeV/c);#sigma_{slope_{X}}"); | |
214 | TGraphAsymmErrors* gMeanResSlopeYFirstClusterVsMom = new TGraphAsymmErrors(pNBins); | |
215 | gMeanResSlopeYFirstClusterVsMom->SetName("gMeanResSlopeYFirstClusterVsMom"); | |
216 | gMeanResSlopeYFirstClusterVsMom->SetTitle("<#Delta_{slope_{Y}}> at first cluster versus p;p (GeV/c);<#Delta_{slope_{Y}}>"); | |
217 | TGraphAsymmErrors* gSigmaResSlopeYFirstClusterVsMom = new TGraphAsymmErrors(pNBins); | |
218 | gSigmaResSlopeYFirstClusterVsMom->SetName("gSigmaResSlopeYFirstClusterVsMom"); | |
219 | gSigmaResSlopeYFirstClusterVsMom->SetTitle("#sigma_{slope_{Y}} at first cluster versus p;p (GeV/c);#sigma_{slope_{Y}}"); | |
220 | ||
221 | // DCA resolution and MCS angular dispersion | |
222 | histoFile->mkdir("DCA","DCA"); | |
223 | histoFile->cd("DCA"); | |
224 | ||
225 | const Int_t deltaPDCANBins = 500; | |
226 | const Double_t deltaPDCAEdges[2] = {0., 1000.}; | |
227 | const Double_t deltaPMCSAngEdges[2] = {-0.5, 0.5}; | |
228 | ||
229 | TH1F *hPDCA = new TH1F("hPDCA","p #times DCA at vertex;p #times DCA (GeV #times cm)", deltaPDCANBins, deltaPDCAEdges[0], deltaPDCAEdges[1]); | |
230 | TH2D *hPDCAVsMom_2_3_Deg = new TH2D("hPDCAVsMom_2_3_Deg","p #times DCA versus p for tracks within [2,3[ degrees at absorber end;p (GeV/c);p #times DCA (GeV #times cm)",2*pNBins,pEdges[0],pEdges[1], deltaPDCANBins, deltaPDCAEdges[0], deltaPDCAEdges[1]); | |
231 | TH2D *hPDCAVsMom_3_10_Deg = new TH2D("hPDCAVsMom_3_10_Deg","p #times DCA versus p for tracks within [3,10[ degrees at absorber end;p (GeV/c);p #times DCA (GeV #times cm)",2*pNBins,pEdges[0],pEdges[1], deltaPDCANBins, deltaPDCAEdges[0], deltaPDCAEdges[1]); | |
232 | TH2D *hPMCSAngVsMom_2_3_Deg = new TH2D("hPMCSAngVsMom_2_3_Deg","p #times #Delta#theta_{MCS} versus p for tracks within [2,3[ degrees at absorber end;p (GeV/c);p #times #Delta#theta_{MCS} (GeV)",2*pNBins,pEdges[0],pEdges[1], deltaPDCANBins, deltaPMCSAngEdges[0], deltaPMCSAngEdges[1]); | |
233 | TH2D *hPMCSAngVsMom_3_10_Deg = new TH2D("hPMCSAngVsMom_3_10_Deg","p #times #Delta#theta_{MCS} versus p for tracks within [2,3[ degrees at absorber end;p (GeV/c);p #times #Delta#theta_{MCS} (GeV)",2*pNBins,pEdges[0],pEdges[1], deltaPDCANBins, deltaPMCSAngEdges[0], deltaPMCSAngEdges[1]); | |
234 | ||
235 | TH2D *hPDCAVsPosAbsEnd_0_2_DegMC = new TH2D("hPDCAVsPosAbsEnd_0_2_DegMC","p #times DCA versus track position at absorber end for tracks with MC angle < 2 degrees;position (cm);p #times DCA (GeV #times cm)",1000,0.,100.,deltaPDCANBins, deltaPDCAEdges[0], deltaPDCAEdges[1]); | |
236 | TH2D *hPDCAVsPosAbsEnd_2_3_DegMC = new TH2D("hPDCAVsPosAbsEnd_2_3_DegMC","p #times DCA}versus track position at absorber end for tracks with MC angle in [2,3[ degrees;position (cm);p #times DCA (GeV #times cm)",1000,0.,100.,deltaPDCANBins, deltaPDCAEdges[0], deltaPDCAEdges[1]); | |
237 | TH2D *hPDCAVsPosAbsEnd_3_10_DegMC = new TH2D("hPDCAVsPosAbsEnd_3_10_DegMC","p #times DCA versus track position at absorber end for tracks with MC angle in [3,10[ degrees;position (cm);p #times DCA (GeV #times cm)",1000,0.,100.,deltaPDCANBins, deltaPDCAEdges[0], deltaPDCAEdges[1]); | |
238 | ||
239 | TH2D *hPDCAVsAngle = new TH2D("hPDCAVsAngle","p #times DCA versus track position at absorber end converted to degrees;angle (Deg);p #times DCA (GeV #times cm)",10,0.,10.,deltaPDCANBins, deltaPDCAEdges[0], deltaPDCAEdges[1]); | |
240 | TH2D *hPDCAVsMCAngle = new TH2D("hPDCAVsMCAngle","p #times DCA versus MC angle;MC angle (Deg);p #times DCA (GeV #times cm)",10,0.,10.,deltaPDCANBins, deltaPDCAEdges[0], deltaPDCAEdges[1]); | |
241 | ||
242 | TGraphAsymmErrors* gSigmaPDCAVsMom_2_3_Deg = new TGraphAsymmErrors(pNBins); | |
243 | gSigmaPDCAVsMom_2_3_Deg->SetName("gSigmaPDCAVsMom_2_3_Deg"); | |
244 | gSigmaPDCAVsMom_2_3_Deg->SetTitle("#sigma_{p #times DCA} versus p for tracks within [2,3[ degrees at absorber end;p (GeV/c);#sigma_{p #times DCA} (GeV #times cm)"); | |
245 | TGraphAsymmErrors* gSigmaPDCAVsMom_3_10_Deg = new TGraphAsymmErrors(pNBins); | |
246 | gSigmaPDCAVsMom_3_10_Deg->SetName("gSigmaPDCAVsMom_3_10_Deg"); | |
247 | gSigmaPDCAVsMom_3_10_Deg->SetTitle("#sigma_{p #times DCA} versus p for tracks within [3,10[ degrees at absorber end;p (GeV/c);#sigma_{p #times DCA} (GeV #times cm)"); | |
248 | TGraphAsymmErrors* gMeanPMCSAngVsMom_2_3_Deg = new TGraphAsymmErrors(pNBins); | |
249 | gMeanPMCSAngVsMom_2_3_Deg->SetName("gMeanPMCSAngVsMom_2_3_Deg"); | |
250 | gMeanPMCSAngVsMom_2_3_Deg->SetTitle("<p #times #Delta#theta_{MCS}> versus p for tracks within [2,3[ degrees at absorber end;p (GeV/c);<p #times #Delta#theta_{MCS}> (GeV)"); | |
251 | TGraphAsymmErrors* gSigmaPMCSAngVsMom_2_3_Deg = new TGraphAsymmErrors(pNBins); | |
252 | gSigmaPMCSAngVsMom_2_3_Deg->SetName("gSigmaPMCSAngVsMom_2_3_Deg"); | |
253 | gSigmaPMCSAngVsMom_2_3_Deg->SetTitle("#sigma_{p #times #Delta#theta_{MCS}} versus p for tracks within [2,3[ degrees at absorber end;p (GeV/c);#sigma_{p #times #Delta#theta_{MCS}} (GeV)"); | |
254 | TGraphAsymmErrors* gMeanPMCSAngVsMom_3_10_Deg = new TGraphAsymmErrors(pNBins); | |
255 | gMeanPMCSAngVsMom_3_10_Deg->SetName("gMeanPMCSAngVsMom_3_10_Deg"); | |
256 | gMeanPMCSAngVsMom_3_10_Deg->SetTitle("<p #times #Delta#theta_{MCS}> versus p for tracks within [3,10[ degrees at absorber end;p (GeV/c);<p #times #Delta#theta_{MCS}> (GeV)"); | |
257 | TGraphAsymmErrors* gSigmaPMCSAngVsMom_3_10_Deg = new TGraphAsymmErrors(pNBins); | |
258 | gSigmaPMCSAngVsMom_3_10_Deg->SetName("gSigmaPMCSAngVsMom_3_10_Deg"); | |
259 | gSigmaPMCSAngVsMom_3_10_Deg->SetTitle("#sigma_{p #times #Delta#theta_{MCS}} versus p for tracks within [3,10[ degrees at absorber end;p (GeV/c);#sigma_{p #times #Delta#theta_{MCS}} (GeV)"); | |
260 | ||
261 | // eta resolution at vertex | |
262 | histoFile->mkdir("etaAtVertex","etaAtVertex"); | |
263 | histoFile->cd("etaAtVertex"); | |
264 | ||
265 | const Int_t deltaEtaAtVtxNBins = 500; | |
266 | const Double_t deltaEtaAtVtxEdges[2] = {-0.5, 0.5}; | |
267 | ||
268 | TH1F *hResEtaVertex = new TH1F("hResEtaVertex","#Delta_{eta} at vertex;#Delta_{eta}", deltaEtaAtVtxNBins, deltaEtaAtVtxEdges[0], deltaEtaAtVtxEdges[1]); | |
269 | TH2D *hResEtaVertexVsMom = new TH2D("hResEtaVertexVsMom","#Delta_{eta} at vertex versus p;p (GeV/c);#Delta_{eta}",2*pNBins,pEdges[0],pEdges[1], deltaEtaAtVtxNBins, deltaEtaAtVtxEdges[0], deltaEtaAtVtxEdges[1]); | |
270 | ||
271 | TH2D *hResEtaVertexVsPosAbsEnd_0_2_DegMC = new TH2D("hResEtaVertexVsPosAbsEnd_0_2_DegMC","#Delta_{eta} at vertex versus track position at absorber end for tracks with MC angle < 2 degrees;position (cm);#Delta_{eta}",1000,0.,100.,deltaEtaAtVtxNBins, deltaEtaAtVtxEdges[0], deltaEtaAtVtxEdges[1]); | |
272 | TH2D *hResEtaVertexVsPosAbsEnd_2_3_DegMC = new TH2D("hResEtaVertexVsPosAbsEnd_2_3_DegMC","#Delta_{eta} at vertex versus track position at absorber end for tracks with MC angle in [2,3[ degrees;position (cm);#Delta_{eta}",1000,0.,100.,deltaEtaAtVtxNBins, deltaEtaAtVtxEdges[0], deltaEtaAtVtxEdges[1]); | |
273 | TH2D *hResEtaVertexVsPosAbsEnd_3_10_DegMC = new TH2D("hResEtaVertexVsPosAbsEnd_3_10_DegMC","#Delta_{eta} at vertex versus track position at absorber end for tracks with MC angle in [3,10[ degrees;position (cm);#Delta_{eta}",1000,0.,100.,deltaEtaAtVtxNBins, deltaEtaAtVtxEdges[0], deltaEtaAtVtxEdges[1]); | |
274 | ||
275 | TH2D *hResEtaVertexVsAngle = new TH2D("hResEtaVertexVsAngle","#Delta_{eta} at vertex versus track position at absorber end converted to degrees;angle (Deg);#Delta_{eta}",10,0.,10.,deltaEtaAtVtxNBins, deltaEtaAtVtxEdges[0], deltaEtaAtVtxEdges[1]); | |
276 | TH2D *hResEtaVertexVsMCAngle = new TH2D("hResEtaVertexVsMCAngle","#Delta_{eta} at vertex versus MC angle;MC angle (Deg);#Delta_{eta}",10,0.,10.,deltaEtaAtVtxNBins, deltaEtaAtVtxEdges[0], deltaEtaAtVtxEdges[1]); | |
277 | ||
278 | TGraphAsymmErrors* gMeanResEtaVertexVsMom = new TGraphAsymmErrors(pNBins); | |
279 | gMeanResEtaVertexVsMom->SetName("gMeanResEtaVertexVsMom"); | |
280 | gMeanResEtaVertexVsMom->SetTitle("<#Delta_{eta}> at vertex versus p;p (GeV/c);<#Delta_{eta}>"); | |
281 | TGraphAsymmErrors* gSigmaResEtaVertexVsMom = new TGraphAsymmErrors(pNBins); | |
282 | gSigmaResEtaVertexVsMom->SetName("gSigmaResEtaVertexVsMom"); | |
283 | gSigmaResEtaVertexVsMom->SetTitle("#sigma_{eta} at vertex versus p;p (GeV/c);#sigma_{eta}"); | |
284 | ||
285 | // phi resolution at vertex | |
286 | histoFile->mkdir("phiAtVertex","phiAtVertex"); | |
287 | histoFile->cd("phiAtVertex"); | |
288 | ||
289 | const Int_t deltaPhiAtVtxNBins = 500; | |
290 | const Double_t deltaPhiAtVtxEdges[2] = {-0.5, 0.5}; | |
291 | ||
292 | TH1F *hResPhiVertex = new TH1F("hResPhiVertex","#Delta_{phi} at vertex;#Delta_{phi}", deltaPhiAtVtxNBins, deltaPhiAtVtxEdges[0], deltaPhiAtVtxEdges[1]); | |
293 | TH2D *hResPhiVertexVsMom = new TH2D("hResPhiVertexVsMom","#Delta_{phi} at vertex versus p;p (GeV/c);#Delta_{phi}",2*pNBins,pEdges[0],pEdges[1], deltaPhiAtVtxNBins, deltaPhiAtVtxEdges[0], deltaPhiAtVtxEdges[1]); | |
294 | ||
295 | TH2D *hResPhiVertexVsPosAbsEnd_0_2_DegMC = new TH2D("hResPhiVertexVsPosAbsEnd_0_2_DegMC","#Delta_{phi} at vertex versus track position at absorber end for tracks with MC angle < 2 degrees;position (cm);#Delta_{phi}",1000,0.,100.,deltaPhiAtVtxNBins, deltaPhiAtVtxEdges[0], deltaPhiAtVtxEdges[1]); | |
296 | TH2D *hResPhiVertexVsPosAbsEnd_2_3_DegMC = new TH2D("hResPhiVertexVsPosAbsEnd_2_3_DegMC","#Delta_{phi} at vertex versus track position at absorber end for tracks with MC angle in [2,3[ degrees;position (cm);#Delta_{phi}",1000,0.,100.,deltaPhiAtVtxNBins, deltaPhiAtVtxEdges[0], deltaPhiAtVtxEdges[1]); | |
297 | TH2D *hResPhiVertexVsPosAbsEnd_3_10_DegMC = new TH2D("hResPhiVertexVsPosAbsEnd_3_10_DegMC","#Delta_{phi} at vertex versus track position at absorber end for tracks with MC angle in [3,10[ degrees;position (cm);#Delta_{phi}",1000,0.,100.,deltaPhiAtVtxNBins, deltaPhiAtVtxEdges[0], deltaPhiAtVtxEdges[1]); | |
298 | ||
299 | TH2D *hResPhiVertexVsAngle = new TH2D("hResPhiVertexVsAngle","#Delta_{phi} at vertex versus track position at absorber end converted to degrees;angle (Deg);#Delta_{phi}",10,0.,10.,deltaPhiAtVtxNBins, deltaPhiAtVtxEdges[0], deltaPhiAtVtxEdges[1]); | |
300 | TH2D *hResPhiVertexVsMCAngle = new TH2D("hResPhiVertexVsMCAngle","#Delta_{phi} at vertex versus MC angle;MC angle (Deg);#Delta_{phi}",10,0.,10.,deltaPhiAtVtxNBins, deltaPhiAtVtxEdges[0], deltaPhiAtVtxEdges[1]); | |
301 | ||
302 | TGraphAsymmErrors* gMeanResPhiVertexVsMom = new TGraphAsymmErrors(pNBins); | |
303 | gMeanResPhiVertexVsMom->SetName("gMeanResPhiVertexVsMom"); | |
304 | gMeanResPhiVertexVsMom->SetTitle("<#Delta_{phi}> at vertex versus p;p (GeV/c);<#Delta_{phi}>"); | |
305 | TGraphAsymmErrors* gSigmaResPhiVertexVsMom = new TGraphAsymmErrors(pNBins); | |
306 | gSigmaResPhiVertexVsMom->SetName("gSigmaResPhiVertexVsMom"); | |
307 | gSigmaResPhiVertexVsMom->SetTitle("#sigma_{phi} at vertex versus p;p (GeV/c);#sigma_{phi}"); | |
c687aa97 | 308 | |
309 | // cluster resolution | |
310 | histoFile->mkdir("clusters","clusters"); | |
311 | histoFile->cd("clusters"); | |
312 | ||
f202486b | 313 | TH1F* hResidualXInCh[AliMUONConstants::NTrackingCh()]; |
314 | TH1F* hResidualYInCh[AliMUONConstants::NTrackingCh()]; | |
315 | for (Int_t i = 0; i < AliMUONConstants::NTrackingCh(); i++) { | |
316 | hResidualXInCh[i] = new TH1F(Form("hResidualXInCh%d",i+1), Form("cluster-track residual-X distribution in chamber %d;#Delta_{X} (cm)",i+1), 1000, -1., 1.); | |
317 | hResidualYInCh[i] = new TH1F(Form("hResidualYInCh%d",i+1), Form("cluster-track residual-Y distribution in chamber %d;#Delta_{Y} (cm)",i+1), 1000, -0.5, 0.5); | |
318 | } | |
c687aa97 | 319 | |
f202486b | 320 | TGraphErrors* gResidualXPerChMean = new TGraphErrors(AliMUONConstants::NTrackingCh()); |
321 | gResidualXPerChMean->SetName("gResidualXPerChMean"); | |
e1fe81b8 | 322 | gResidualXPerChMean->SetTitle("cluster-trackRef residual-X per Ch: mean;chamber ID;<#Delta_{X}> (cm)"); |
f202486b | 323 | gResidualXPerChMean->SetMarkerStyle(kFullDotLarge); |
324 | TGraphErrors* gResidualYPerChMean = new TGraphErrors(AliMUONConstants::NTrackingCh()); | |
325 | gResidualYPerChMean->SetName("gResidualYPerChMean"); | |
e1fe81b8 | 326 | gResidualYPerChMean->SetTitle("cluster-trackRef residual-Y per Ch: mean;chamber ID;<#Delta_{Y}> (cm)"); |
f202486b | 327 | gResidualYPerChMean->SetMarkerStyle(kFullDotLarge); |
328 | TGraphErrors* gResidualXPerChSigma = new TGraphErrors(AliMUONConstants::NTrackingCh()); | |
329 | gResidualXPerChSigma->SetName("gResidualXPerChSigma"); | |
e1fe81b8 | 330 | gResidualXPerChSigma->SetTitle("cluster-trackRef residual-X per Ch: sigma;chamber ID;#sigma_{X} (cm)"); |
f202486b | 331 | gResidualXPerChSigma->SetMarkerStyle(kFullDotLarge); |
332 | TGraphErrors* gResidualYPerChSigma = new TGraphErrors(AliMUONConstants::NTrackingCh()); | |
333 | gResidualYPerChSigma->SetName("gResidualYPerChSigma"); | |
e1fe81b8 | 334 | gResidualYPerChSigma->SetTitle("cluster-trackRef residual-Y per Ch: sigma;chamber ID;#sigma_{Y} (cm)"); |
f202486b | 335 | gResidualYPerChSigma->SetMarkerStyle(kFullDotLarge); |
9f164762 | 336 | |
337 | histoFile->mkdir("trigger"); | |
338 | histoFile->cd("trigger"); | |
339 | TH1F* hResidualTrigX11 = new TH1F("hResiudalTrigX11", "Residual X11", 100, -10., 10.); | |
340 | TH1F* hResidualTrigY11 = new TH1F("hResiudalTrigY11", "Residual Y11", 100, -10., 10.); | |
341 | TH1F* hResidualTrigSlopeY = new TH1F("hResiudalTrigSlopeY", "Residual Y slope", 100, -0.1, 0.1); | |
342 | TH1F* hTriggerableMatchFailed = new TH1F("hTriggerableMatchFailed", "Triggerable multiplicity for events with no match", 15, -0.5, 14.5); | |
343 | ||
48217459 | 344 | |
c687aa97 | 345 | // ###################################### initialize ###################################### // |
a99c3449 | 346 | AliMUONRecoCheck rc(esdFileName, pathSim); |
347 | ||
348 | // load necessary data from OCDB | |
349 | AliCDBManager::Instance()->SetDefaultStorage(ocdbPath); | |
350 | AliCDBManager::Instance()->SetRun(rc.GetRunNumber()); | |
c687aa97 | 351 | if (!AliMUONCDB::LoadField()) return; |
352 | AliMUONTrackExtrap::SetField(); | |
e1fe81b8 | 353 | AliGeomManager::LoadGeometry(); |
354 | if (!AliGeomManager::GetGeometry()) return; | |
a99c3449 | 355 | AliMUONRecoParam* recoParam = AliMUONCDB::LoadRecoParam(); |
356 | if (!recoParam) return; | |
e1fe81b8 | 357 | AliMUONESDInterface::ResetTracker(recoParam); |
a0bfad0e | 358 | |
f202486b | 359 | // get sigma cut from recoParam to associate clusters with TrackRefs in case the label are not used |
a99c3449 | 360 | Double_t sigmaCut = (recoParam->ImproveTracks()) ? recoParam->GetSigmaCutForImprovement() : recoParam->GetSigmaCutForTracking(); |
f202486b | 361 | // compute the mask of requested stations from recoParam |
362 | UInt_t requestedStationMask = 0; | |
363 | for (Int_t i = 0; i < 5; i++) if (recoParam->RequestStation(i)) requestedStationMask |= ( 1 << i ); | |
364 | // get from recoParam whether a track need 2 chambers hit in the same station (4 or 5) or not to be reconstructible | |
365 | Bool_t request2ChInSameSt45 = !recoParam->MakeMoreTrackCandidates(); | |
48217459 | 366 | |
367 | Int_t nevents = rc.NumberOfEvents(); | |
b8dc484b | 368 | |
edcc5b56 | 369 | if (nevents < nEvent || nEvent < 0) nEvent = nevents; |
b8dc484b | 370 | |
371 | Int_t ievent; | |
372 | Int_t nReconstructibleTracks = 0; | |
373 | Int_t nReconstructedTracks = 0; | |
374 | Int_t nReconstructibleTracksCheck = 0; | |
f202486b | 375 | AliMUONTrackParam *trackParam; |
e1fe81b8 | 376 | Double_t x1,y1,z1,slopex1,slopey1,pX1,pY1,pZ1,p1,pT1,eta1,phi1; |
377 | Double_t x2,y2,z2,slopex2,slopey2,pX2,pY2,pZ2,p2,pT2,eta2,phi2; | |
378 | Double_t xAbs,yAbs,dAbs,aAbs,aMCS,aMC; | |
379 | Double_t xDCA,yDCA,dca,pU; | |
380 | Double_t aMCSMoy = 0., aMCS2Moy = 0., dMCSMoy = 0., dMCS2Moy = 0., adMCSMoy = 0.; | |
381 | Int_t nMCS = 0; | |
48217459 | 382 | |
c687aa97 | 383 | // ###################################### fill histograms ###################################### // |
48217459 | 384 | for (ievent=0; ievent<nEvent; ievent++) |
385 | { | |
c687aa97 | 386 | if ((ievent+1)%100 == 0) cout<<"\rEvent processing... "<<ievent+1<<flush; |
b8dc484b | 387 | |
a99c3449 | 388 | AliMUONVTrackStore* trackStore = rc.ReconstructedTracks(ievent, kFALSE); |
f202486b | 389 | AliMUONVTrackStore* trackRefStore = rc.ReconstructibleTracks(ievent, requestedStationMask, request2ChInSameSt45); |
b8dc484b | 390 | |
48217459 | 391 | hReconstructible->Fill(trackRefStore->GetSize()); |
392 | hReco->Fill(trackStore->GetSize()); | |
393 | ||
394 | nReconstructibleTracks += trackRefStore->GetSize(); | |
395 | nReconstructedTracks += trackStore->GetSize(); | |
9f164762 | 396 | |
397 | AliMUONVTriggerTrackStore* triggerTrackRefStore = rc.TriggerableTracks(ievent); | |
398 | AliMUONVTriggerTrackStore* triggerTrackStore = rc.TriggeredTracks(ievent); | |
399 | ||
400 | hTriggerable->Fill(triggerTrackRefStore->GetSize()); | |
401 | hTriggered->Fill(triggerTrackStore->GetSize()); | |
402 | ||
403 | // loop over trigger trackRef | |
404 | TIter nextTrig(triggerTrackRefStore->CreateIterator()); | |
405 | AliMUONTriggerTrack* triggerTrackRef; | |
406 | Int_t nTriggerMatches = 0; | |
407 | while ( ( triggerTrackRef = static_cast<AliMUONTriggerTrack*>(nextTrig()) ) ) | |
408 | { | |
409 | ||
410 | AliMUONTriggerTrack* triggerTrackMatched = 0x0; | |
411 | ||
412 | // loop over trackReco and look for compatible track | |
413 | TIter nextTrig2(triggerTrackStore->CreateIterator()); | |
414 | AliMUONTriggerTrack* triggerTrackReco; | |
415 | while ( ( triggerTrackReco = static_cast<AliMUONTriggerTrack*>(nextTrig2()) ) ) | |
416 | { | |
417 | ||
418 | // check if trackReco is compatible with trackRef | |
419 | if (triggerTrackReco->Match(*triggerTrackRef, sigmaCut)) { | |
420 | triggerTrackMatched = triggerTrackReco; | |
421 | nTriggerMatches++; | |
422 | break; | |
423 | } | |
424 | } | |
425 | ||
426 | if (triggerTrackMatched) { // tracking requirements verified, track is found | |
427 | hResidualTrigX11->Fill( triggerTrackMatched->GetX11() - triggerTrackRef->GetX11() ); | |
428 | hResidualTrigY11->Fill( triggerTrackMatched->GetY11() - triggerTrackRef->GetY11() ); | |
429 | hResidualTrigSlopeY->Fill( triggerTrackMatched->GetSlopeY() - triggerTrackRef->GetSlopeY() ); | |
430 | } | |
431 | } // loop on trigger track ref | |
432 | ||
433 | if ( nTriggerMatches != triggerTrackStore->GetSize() ) | |
434 | hTriggerableMatchFailed->Fill(triggerTrackRefStore->GetSize()); | |
48217459 | 435 | |
f202486b | 436 | // loop over trackRef |
48217459 | 437 | TIter next(trackRefStore->CreateIterator()); |
438 | AliMUONTrack* trackRef; | |
48217459 | 439 | while ( ( trackRef = static_cast<AliMUONTrack*>(next()) ) ) |
440 | { | |
48217459 | 441 | |
9f164762 | 442 | hTrackRefID->Fill(trackRef->GetUniqueID()); |
f202486b | 443 | |
444 | AliMUONTrack* trackMatched = 0x0; | |
445 | Int_t nMatchClusters = 0; | |
446 | ||
447 | // loop over trackReco and look for compatible track | |
48217459 | 448 | TIter next2(trackStore->CreateIterator()); |
449 | AliMUONTrack* trackReco; | |
48217459 | 450 | while ( ( trackReco = static_cast<AliMUONTrack*>(next2()) ) ) |
451 | { | |
f202486b | 452 | |
453 | // check if trackReco is compatible with trackRef | |
f202486b | 454 | if (trackReco->Match(*trackRef, sigmaCut, nMatchClusters)) { |
455 | trackMatched = trackReco; | |
f202486b | 456 | break; |
61fed964 | 457 | } |
f202486b | 458 | |
48217459 | 459 | } |
460 | ||
f202486b | 461 | if (trackMatched) { // tracking requirements verified, track is found |
48217459 | 462 | nReconstructibleTracksCheck++; |
f202486b | 463 | hNClusterComp->Fill(nMatchClusters); |
c687aa97 | 464 | |
465 | // compute track position at the end of the absorber | |
466 | AliMUONTrackParam trackParamAtAbsEnd(*((AliMUONTrackParam*)trackMatched->GetTrackParamAtCluster()->First())); | |
467 | AliMUONTrackExtrap::ExtrapToZ(&trackParamAtAbsEnd, AliMUONConstants::AbsZEnd()); | |
468 | xAbs = trackParamAtAbsEnd.GetNonBendingCoor(); | |
469 | yAbs = trackParamAtAbsEnd.GetBendingCoor(); | |
470 | dAbs = TMath::Sqrt(xAbs*xAbs + yAbs*yAbs); | |
471 | aAbs = TMath::ATan(-dAbs/AliMUONConstants::AbsZEnd()) * TMath::RadToDeg(); | |
e1fe81b8 | 472 | pX2 = trackParamAtAbsEnd.Px(); |
473 | pY2 = trackParamAtAbsEnd.Py(); | |
474 | pZ2 = trackParamAtAbsEnd.Pz(); | |
475 | pT2 = TMath::Sqrt(pX2*pX2 + pY2*pY2); | |
476 | aMCS = TMath::ATan(-pT2/pZ2) * TMath::RadToDeg(); | |
c687aa97 | 477 | |
48217459 | 478 | trackParam = trackRef->GetTrackParamAtVertex(); |
479 | x1 = trackParam->GetNonBendingCoor(); | |
480 | y1 = trackParam->GetBendingCoor(); | |
481 | z1 = trackParam->GetZ(); | |
e1fe81b8 | 482 | slopex1 = trackParam->GetNonBendingSlope(); |
483 | slopey1 = trackParam->GetBendingSlope(); | |
48217459 | 484 | pX1 = trackParam->Px(); |
485 | pY1 = trackParam->Py(); | |
486 | pZ1 = trackParam->Pz(); | |
487 | p1 = trackParam->P(); | |
f202486b | 488 | pT1 = TMath::Sqrt(pX1*pX1 + pY1*pY1); |
c687aa97 | 489 | aMC = TMath::ATan(-pT1/pZ1) * TMath::RadToDeg(); |
e1fe81b8 | 490 | eta1 = TMath::Log(TMath::Tan(0.5*TMath::ATan(-pT1/pZ1))); |
491 | phi1 = TMath::Pi()+TMath::ATan2(-pY1, -pX1); | |
c687aa97 | 492 | |
f202486b | 493 | trackParam = trackMatched->GetTrackParamAtVertex(); |
48217459 | 494 | x2 = trackParam->GetNonBendingCoor(); |
495 | y2 = trackParam->GetBendingCoor(); | |
496 | z2 = trackParam->GetZ(); | |
e1fe81b8 | 497 | slopex2 = trackParam->GetNonBendingSlope(); |
498 | slopey2 = trackParam->GetBendingSlope(); | |
48217459 | 499 | pX2 = trackParam->Px(); |
500 | pY2 = trackParam->Py(); | |
501 | pZ2 = trackParam->Pz(); | |
502 | p2 = trackParam->P(); | |
f202486b | 503 | pT2 = TMath::Sqrt(pX2*pX2 + pY2*pY2); |
e1fe81b8 | 504 | eta2 = TMath::Log(TMath::Tan(0.5*TMath::ATan(-pT2/pZ2))); |
505 | phi2 = TMath::Pi()+TMath::ATan2(-pY2, -pX2); | |
48217459 | 506 | |
e1fe81b8 | 507 | AliMUONTrackParam trackParamAtDCA(*((AliMUONTrackParam*) trackMatched->GetTrackParamAtCluster()->First())); |
508 | pU = trackParamAtDCA.P(); | |
509 | AliMUONTrackExtrap::ExtrapToVertexWithoutBranson(&trackParamAtDCA, z2); | |
510 | xDCA = trackParamAtDCA.GetNonBendingCoor(); | |
511 | yDCA = trackParamAtDCA.GetBendingCoor(); | |
512 | dca = TMath::Sqrt(xDCA*xDCA + yDCA*yDCA); | |
513 | ||
48217459 | 514 | hResMomVertex->Fill(p2-p1); |
e1fe81b8 | 515 | hResSlopeXVertex->Fill(slopex2-slopex1); |
516 | hResSlopeYVertex->Fill(slopey2-slopey1); | |
517 | hPDCA->Fill(0.5*(p2+pU)*dca); | |
518 | hResEtaVertex->Fill(eta2-eta1); | |
519 | hResPhiVertex->Fill(phi2-phi1); | |
520 | if (aMC >= aAbsLimits[0] && aMC <= aAbsLimits[1]) { | |
521 | hResMomVertexVsMom->Fill(p1,p2-p1); | |
522 | hResSlopeXVertexVsMom->Fill(p1,slopex2-slopex1); | |
523 | hResSlopeYVertexVsMom->Fill(p1,slopey2-slopey1); | |
524 | hResEtaVertexVsMom->Fill(p1,eta2-eta1); | |
525 | hResPhiVertexVsMom->Fill(p1,phi2-phi1); | |
526 | } | |
c687aa97 | 527 | hResMomVertexVsAngleVsMom->Fill(p1,aAbs,p2-p1); |
e1fe81b8 | 528 | if (aAbs > 2. && aAbs < 3.) { |
529 | hResMomVertexVsMom_2_3_Deg->Fill(p1,p2-p1); | |
530 | hPDCAVsMom_2_3_Deg->Fill(p1,0.5*(p2+pU)*dca); | |
531 | hPMCSAngVsMom_2_3_Deg->Fill(p1,0.5*(p2+pU)*(aMCS-aMC)*TMath::DegToRad()); | |
532 | } | |
533 | else if (aAbs >= 3. && aAbs < 10.) { | |
534 | hResMomVertexVsMom_3_10_Deg->Fill(p1,p2-p1); | |
535 | hPDCAVsMom_3_10_Deg->Fill(p1,0.5*(p2+pU)*dca); | |
536 | hPMCSAngVsMom_3_10_Deg->Fill(p1,0.5*(p2+pU)*(aMCS-aMC)*TMath::DegToRad()); | |
537 | aMCSMoy += 0.5*(p2+pU)*(aMCS-aMC)*TMath::DegToRad(); | |
538 | aMCS2Moy += (0.5*(p2+pU)*(aMCS-aMC)*TMath::DegToRad()) * (0.5*(p2+pU)*(aMCS-aMC)*TMath::DegToRad()); | |
539 | dMCSMoy += 0.5*(p2+pU)*(dAbs-pT1/pZ1*AliMUONConstants::AbsZEnd()); | |
540 | dMCS2Moy += (0.5*(p2+pU)*(dAbs-pT1/pZ1*AliMUONConstants::AbsZEnd())) * (0.5*(p2+pU)*(dAbs-pT1/pZ1*AliMUONConstants::AbsZEnd())); | |
541 | adMCSMoy += (0.5*(p2+pU)*(aMCS-aMC)*TMath::DegToRad()) * (0.5*(p2+pU)*(dAbs-pT1/pZ1*AliMUONConstants::AbsZEnd())); | |
542 | nMCS++; | |
543 | } | |
c687aa97 | 544 | if (aMC < 2.) { |
545 | hResMomVertexVsMom_0_2_DegMC->Fill(p1,p2-p1); | |
546 | hResMomVertexVsPosAbsEnd_0_2_DegMC->Fill(dAbs,p2-p1); | |
e1fe81b8 | 547 | hResSlopeXVertexVsPosAbsEnd_0_2_DegMC->Fill(dAbs,slopex2-slopex1); |
548 | hResSlopeYVertexVsPosAbsEnd_0_2_DegMC->Fill(dAbs,slopey2-slopey1); | |
549 | hPDCAVsPosAbsEnd_0_2_DegMC->Fill(dAbs,0.5*(p2+pU)*dca); | |
550 | hResEtaVertexVsPosAbsEnd_0_2_DegMC->Fill(dAbs,eta2-eta1); | |
551 | hResPhiVertexVsPosAbsEnd_0_2_DegMC->Fill(dAbs,phi2-phi1); | |
552 | } | |
553 | else if (aMC >= 2. && aMC < 3) { | |
554 | hResMomVertexVsPosAbsEnd_2_3_DegMC->Fill(dAbs,p2-p1); | |
555 | hResSlopeXVertexVsPosAbsEnd_2_3_DegMC->Fill(dAbs,slopex2-slopex1); | |
556 | hResSlopeYVertexVsPosAbsEnd_2_3_DegMC->Fill(dAbs,slopey2-slopey1); | |
557 | hPDCAVsPosAbsEnd_2_3_DegMC->Fill(dAbs,0.5*(p2+pU)*dca); | |
558 | hResEtaVertexVsPosAbsEnd_2_3_DegMC->Fill(dAbs,eta2-eta1); | |
559 | hResPhiVertexVsPosAbsEnd_2_3_DegMC->Fill(dAbs,phi2-phi1); | |
560 | } | |
561 | else if (aMC >= 3. && aMC < 10.) { | |
562 | hResMomVertexVsPosAbsEnd_3_10_DegMC->Fill(dAbs,p2-p1); | |
563 | hResSlopeXVertexVsPosAbsEnd_3_10_DegMC->Fill(dAbs,slopex2-slopex1); | |
564 | hResSlopeYVertexVsPosAbsEnd_3_10_DegMC->Fill(dAbs,slopey2-slopey1); | |
565 | hPDCAVsPosAbsEnd_3_10_DegMC->Fill(dAbs,0.5*(p2+pU)*dca); | |
566 | hResEtaVertexVsPosAbsEnd_3_10_DegMC->Fill(dAbs,eta2-eta1); | |
567 | hResPhiVertexVsPosAbsEnd_3_10_DegMC->Fill(dAbs,phi2-phi1); | |
c687aa97 | 568 | } |
c687aa97 | 569 | hResMomVertexVsAngle->Fill(aAbs,p2-p1); |
e1fe81b8 | 570 | hResSlopeXVertexVsAngle->Fill(aAbs,slopex2-slopex1); |
571 | hResSlopeYVertexVsAngle->Fill(aAbs,slopey2-slopey1); | |
572 | hPDCAVsAngle->Fill(aAbs,0.5*(p2+pU)*dca); | |
573 | hResEtaVertexVsAngle->Fill(aAbs,eta2-eta1); | |
574 | hResPhiVertexVsAngle->Fill(aAbs,phi2-phi1); | |
c687aa97 | 575 | hResMomVertexVsMCAngle->Fill(aMC,p2-p1); |
e1fe81b8 | 576 | hResSlopeXVertexVsMCAngle->Fill(aMC,slopex2-slopex1); |
577 | hResSlopeYVertexVsMCAngle->Fill(aMC,slopey2-slopey1); | |
578 | hPDCAVsMCAngle->Fill(aMC,0.5*(p2+pU)*dca); | |
579 | hResEtaVertexVsMCAngle->Fill(aMC,eta2-eta1); | |
580 | hResPhiVertexVsMCAngle->Fill(aMC,phi2-phi1); | |
f202486b | 581 | |
96ebe67e | 582 | trackParam = (AliMUONTrackParam*) trackRef->GetTrackParamAtCluster()->First(); |
48217459 | 583 | x1 = trackParam->GetNonBendingCoor(); |
584 | y1 = trackParam->GetBendingCoor(); | |
585 | z1 = trackParam->GetZ(); | |
e1fe81b8 | 586 | slopex1 = trackParam->GetNonBendingSlope(); |
587 | slopey1 = trackParam->GetBendingSlope(); | |
48217459 | 588 | pX1 = trackParam->Px(); |
589 | pY1 = trackParam->Py(); | |
590 | pZ1 = trackParam->Pz(); | |
591 | p1 = trackParam->P(); | |
f202486b | 592 | pT1 = TMath::Sqrt(pX1*pX1 + pY1*pY1); |
593 | ||
f202486b | 594 | trackParam = (AliMUONTrackParam*) trackMatched->GetTrackParamAtCluster()->First(); |
48217459 | 595 | x2 = trackParam->GetNonBendingCoor(); |
596 | y2 = trackParam->GetBendingCoor(); | |
597 | z2 = trackParam->GetZ(); | |
e1fe81b8 | 598 | slopex2 = trackParam->GetNonBendingSlope(); |
599 | slopey2 = trackParam->GetBendingSlope(); | |
48217459 | 600 | pX2 = trackParam->Px(); |
601 | pY2 = trackParam->Py(); | |
602 | pZ2 = trackParam->Pz(); | |
603 | p2 = trackParam->P(); | |
f202486b | 604 | pT2 = TMath::Sqrt(pX2*pX2 + pY2*pY2); |
48217459 | 605 | |
96ebe67e | 606 | hResMomFirstCluster->Fill(p2-p1); |
f202486b | 607 | hResMomFirstClusterVsMom->Fill(p1,p2-p1); |
608 | ||
e1fe81b8 | 609 | hResSlopeXFirstCluster->Fill(slopex2-slopex1); |
610 | hResSlopeYFirstCluster->Fill(slopey2-slopey1); | |
611 | hResSlopeXFirstClusterVsMom->Fill(p1,slopex2-slopex1); | |
612 | hResSlopeYFirstClusterVsMom->Fill(p1,slopey2-slopey1); | |
613 | ||
f202486b | 614 | // Fill residuals |
615 | // Loop over clusters of first track | |
616 | AliMUONTrackParam* trackParamAtCluster1 = (AliMUONTrackParam*) trackMatched->GetTrackParamAtCluster()->First(); | |
617 | while (trackParamAtCluster1) { | |
618 | AliMUONVCluster* cluster1 = trackParamAtCluster1->GetClusterPtr(); | |
619 | AliMUONTrackParam* trackParamAtCluster2 = (AliMUONTrackParam*) trackRef->GetTrackParamAtCluster()->First(); | |
620 | while (trackParamAtCluster2) { | |
621 | AliMUONVCluster* cluster2 = trackParamAtCluster2->GetClusterPtr(); | |
622 | if (cluster1->GetDetElemId() == cluster2->GetDetElemId()) { | |
623 | hResidualXInCh[cluster1->GetChamberId()]->Fill(cluster1->GetX() - cluster2->GetX()); | |
624 | hResidualYInCh[cluster1->GetChamberId()]->Fill(cluster1->GetY() - cluster2->GetY()); | |
625 | break; | |
626 | } | |
627 | trackParamAtCluster2 = (AliMUONTrackParam*) trackRef->GetTrackParamAtCluster()->After(trackParamAtCluster2); | |
628 | } | |
629 | trackParamAtCluster1 = (AliMUONTrackParam*) trackMatched->GetTrackParamAtCluster()->After(trackParamAtCluster1); | |
630 | } | |
631 | ||
b8dc484b | 632 | } |
f202486b | 633 | |
b8dc484b | 634 | } // end loop track ref. |
b8dc484b | 635 | |
48217459 | 636 | } // end loop on event |
c687aa97 | 637 | cout<<"\rEvent processing... "<<nevents<<" done"<<endl; |
48217459 | 638 | |
c687aa97 | 639 | // ###################################### compute stuff ###################################### // |
e1fe81b8 | 640 | cout<<"\nWhen not specified, resolution at vertex is computed for "; |
641 | if (absorberRegion == 1) cout<<"tracks in the absorber region [2,3] deg."<<endl; | |
642 | else if (absorberRegion == 2) cout<<"tracks in the absorber region [3,10] deg."<<endl; | |
643 | else cout<<"all tracks"<<endl; | |
644 | ||
c687aa97 | 645 | // compute momentum resolution at vertex versus p |
e1fe81b8 | 646 | TF1 *f2 = new TF1("f2",langaufun,deltaPAtVtxEdges[0],deltaPAtVtxEdges[1],4); |
c687aa97 | 647 | Int_t rebinFactorX = TMath::Max(hResMomVertexVsMom->GetNbinsX()/pNBins, 1); |
648 | for (Int_t i = rebinFactorX; i <= hResMomVertexVsMom->GetNbinsX(); i+=rebinFactorX) { | |
649 | cout<<"\rFitting momentum residuals at vertex... "<<i/rebinFactorX<<"/"<<pNBins<<flush; | |
650 | TH1D *tmp = hResMomVertexVsMom->ProjectionY("tmp",i-rebinFactorX+1,i,"e"); | |
c687aa97 | 651 | f2->SetParameters(0.2,0.,(Double_t)tmp->GetEntries(),1.); |
652 | tmp->Fit("f2","WWNQ"); | |
653 | Double_t fwhm = f2->GetParameter(0); | |
654 | Double_t sigma = f2->GetParameter(3); | |
655 | Double_t sigmaP = TMath::Sqrt(sigma*sigma + fwhm*fwhm/(8.*log(2.))); | |
656 | Int_t rebin = TMath::Max(Int_t(0.5*sigmaP/tmp->GetBinWidth(1)),1); | |
657 | while (deltaPAtVtxNBins%rebin!=0) rebin--; | |
658 | tmp->Rebin(rebin); | |
659 | tmp->Fit("f2","NQ"); | |
660 | fwhm = f2->GetParameter(0); | |
661 | sigma = f2->GetParameter(3); | |
662 | sigmaP = TMath::Sqrt(sigma*sigma + fwhm*fwhm/(8.*log(2.))); | |
663 | Double_t fwhmErr = f2->GetParError(0); | |
664 | Double_t sigmaErr = f2->GetParError(3); | |
665 | Double_t sigmaPErr = TMath::Sqrt(sigma*sigma*sigmaErr*sigmaErr + fwhm*fwhm*fwhmErr*fwhmErr/(64.*log(2.)*log(2.))) / sigmaP; | |
e1fe81b8 | 666 | hResMomVertexVsMom->GetXaxis()->SetRange(i-rebinFactorX+1,i); |
667 | Double_t p = hResMomVertexVsMom->GetMean(); | |
668 | hResMomVertexVsMom->GetXaxis()->SetRange(); | |
669 | Double_t pErr[2] = {p-hResMomVertexVsMom->GetBinLowEdge(i-rebinFactorX+1), hResMomVertexVsMom->GetBinLowEdge(i+1)-p}; | |
670 | gMeanResMomVertexVsMom->SetPoint(i/rebinFactorX-1, p, tmp->GetMean()); | |
671 | gMeanResMomVertexVsMom->SetPointError(i/rebinFactorX-1, pErr[0], pErr[1], tmp->GetMeanError(), tmp->GetMeanError()); | |
672 | gMostProbResMomVertexVsMom->SetPoint(i/rebinFactorX-1, p, -f2->GetParameter(1)); | |
673 | gMostProbResMomVertexVsMom->SetPointError(i/rebinFactorX-1, pErr[0], pErr[1], f2->GetParError(1), f2->GetParError(1)); | |
674 | gSigmaResMomVertexVsMom->SetPoint(i/rebinFactorX-1, p, 100.*sigmaP/p); | |
675 | gSigmaResMomVertexVsMom->SetPointError(i/rebinFactorX-1, pErr[0], pErr[1], 100.*sigmaPErr/p, 100.*sigmaPErr/p); | |
f202486b | 676 | delete tmp; |
677 | } | |
c687aa97 | 678 | cout<<"\rFitting momentum residuals at vertex... "<<pNBins<<"/"<<pNBins<<endl; |
679 | ||
e1fe81b8 | 680 | // compute momentum relative resolution at first cluster versus p |
681 | FitGausResVsMom(hResMomFirstClusterVsMom, pNBins, 0., 1., "momentum residuals at first cluster", gMeanResMomFirstClusterVsMom, gSigmaResMomFirstClusterVsMom); | |
c687aa97 | 682 | rebinFactorX = TMath::Max(hResMomFirstClusterVsMom->GetNbinsX()/pNBins, 1); |
683 | for (Int_t i = rebinFactorX; i <= hResMomFirstClusterVsMom->GetNbinsX(); i+=rebinFactorX) { | |
e1fe81b8 | 684 | Double_t x,y; |
685 | gSigmaResMomFirstClusterVsMom->GetPoint(i/rebinFactorX-1, x, y); | |
686 | gSigmaResMomFirstClusterVsMom->SetPoint(i/rebinFactorX-1, x, 100.*y/x); | |
687 | gSigmaResMomFirstClusterVsMom->SetPointEYlow(i/rebinFactorX-1, 100.*gSigmaResMomFirstClusterVsMom->GetErrorYlow(i/rebinFactorX-1)/x); | |
688 | gSigmaResMomFirstClusterVsMom->SetPointEYhigh(i/rebinFactorX-1, 100.*gSigmaResMomFirstClusterVsMom->GetErrorYhigh(i/rebinFactorX-1)/x); | |
f202486b | 689 | } |
690 | ||
e1fe81b8 | 691 | // compute slopeX resolution at vertex versus p |
692 | FitGausResVsMom(hResSlopeXVertexVsMom, pNBins, 0., 2.e-3, "slopeX residuals at vertex", gMeanResSlopeXVertexVsMom, gSigmaResSlopeXVertexVsMom); | |
693 | ||
694 | // compute slopeY resolution at vertex versus p | |
695 | FitGausResVsMom(hResSlopeYVertexVsMom, pNBins, 0., 2.e-3, "slopeY residuals at vertex", gMeanResSlopeYVertexVsMom, gSigmaResSlopeYVertexVsMom); | |
696 | ||
697 | // compute slopeX resolution at first cluster versus p | |
698 | FitGausResVsMom(hResSlopeXFirstClusterVsMom, pNBins, 0., 3.e-4, "slopeX residuals at first cluster", gMeanResSlopeXFirstClusterVsMom, gSigmaResSlopeXFirstClusterVsMom); | |
699 | ||
700 | // compute slopeY resolution at first cluster versus p | |
701 | FitGausResVsMom(hResSlopeYFirstClusterVsMom, pNBins, 0., 2.e-4, "slopeY residuals at first cluster", gMeanResSlopeYFirstClusterVsMom, gSigmaResSlopeYFirstClusterVsMom); | |
702 | ||
703 | // compute p*DCA resolution in the region [2,3] deg at absorber end | |
704 | FitPDCAVsMom(hPDCAVsMom_2_3_Deg, pNBins, "p*DCA (tracks in [2,3] deg.)", gSigmaPDCAVsMom_2_3_Deg); | |
705 | ||
706 | // compute p*DCA resolution in the region [3,10] deg at absorber end | |
707 | FitPDCAVsMom(hPDCAVsMom_3_10_Deg, pNBins, "p*DCA (tracks in [3,10] deg.)", gSigmaPDCAVsMom_3_10_Deg); | |
708 | ||
709 | // compute MCS angular dispersion in the region [2,3] deg at absorber end | |
710 | FitGausResVsMom(hPMCSAngVsMom_2_3_Deg, pNBins, 0., 2.e-3, "p*MCSAngle (tracks in [2,3] deg.)", gMeanPMCSAngVsMom_2_3_Deg, gSigmaPMCSAngVsMom_2_3_Deg); | |
711 | ||
712 | // compute MCS angular dispersion in the region [3,10] deg at absorber end | |
713 | FitGausResVsMom(hPMCSAngVsMom_3_10_Deg, pNBins, 0., 2.e-3, "p*MCSAngle (tracks in [3,10] deg.)", gMeanPMCSAngVsMom_3_10_Deg, gSigmaPMCSAngVsMom_3_10_Deg); | |
714 | ||
715 | // compute eta resolution at vertex versus p | |
716 | FitGausResVsMom(hResEtaVertexVsMom, pNBins, 0., 0.1, "eta residuals at vertex", gMeanResEtaVertexVsMom, gSigmaResEtaVertexVsMom); | |
717 | ||
718 | // compute phi resolution at vertex versus p | |
719 | FitGausResVsMom(hResPhiVertexVsMom, pNBins, 0., 0.01, "phi residuals at vertex", gMeanResPhiVertexVsMom, gSigmaResPhiVertexVsMom); | |
720 | ||
721 | // compute cluster-track residual mean and dispersion | |
f202486b | 722 | for (Int_t i = 0; i < AliMUONConstants::NTrackingCh(); i++) { |
723 | hResidualXInCh[i]->GetXaxis()->SetRangeUser(-3.*hResidualXInCh[i]->GetRMS(), 3.*hResidualXInCh[i]->GetRMS()); | |
724 | gResidualXPerChMean->SetPoint(i, i+1, hResidualXInCh[i]->GetMean()); | |
725 | gResidualXPerChMean->SetPointError(i, 0., hResidualXInCh[i]->GetMeanError()); | |
726 | gResidualXPerChSigma->SetPoint(i, i+1, hResidualXInCh[i]->GetRMS()); | |
727 | gResidualXPerChSigma->SetPointError(i, 0., hResidualXInCh[i]->GetRMSError()); | |
728 | hResidualXInCh[i]->GetXaxis()->SetRange(0,0); | |
729 | hResidualYInCh[i]->GetXaxis()->SetRangeUser(-3.*hResidualYInCh[i]->GetRMS(), 3.*hResidualYInCh[i]->GetRMS()); | |
730 | gResidualYPerChMean->SetPoint(i, i+1, hResidualYInCh[i]->GetMean()); | |
731 | gResidualYPerChMean->SetPointError(i, 0., hResidualYInCh[i]->GetMeanError()); | |
732 | gResidualYPerChSigma->SetPoint(i, i+1, hResidualYInCh[i]->GetRMS()); | |
733 | gResidualYPerChSigma->SetPointError(i, 0., hResidualYInCh[i]->GetRMSError()); | |
734 | hResidualYInCh[i]->GetXaxis()->SetRange(0,0); | |
735 | } | |
736 | ||
c687aa97 | 737 | // ###################################### display histograms ###################################### // |
e1fe81b8 | 738 | // diplay momentum residuals |
739 | TCanvas* cResMom = DrawVsAng("cResMom", "momentum residual at vertex in 3 angular regions", hResMomVertex, hResMomVertexVsAngle); | |
740 | TCanvas* cResMomMC = DrawVsAng("cResMomMC", "momentum residual at vertex in 3 MC angular regions", hResMomVertex, hResMomVertexVsMCAngle); | |
741 | TCanvas* cResMomVsPos = DrawVsPos("cResMomVsPos", "momentum residual at vertex versus position at absorber end in 3 MC angular regions", | |
742 | hResMomVertexVsPosAbsEnd_0_2_DegMC, hResMomVertexVsPosAbsEnd_2_3_DegMC, hResMomVertexVsPosAbsEnd_3_10_DegMC); | |
743 | TCanvas* cResMom_2_3_Deg = DrawResMomVsMom("cResMom_2_3_Deg", "momentum residual for tracks between 2 and 3 degrees", | |
744 | hResMomVertexVsMom_2_3_Deg, 10, f2, "momentum residuals at vertex (tracks in [2,3] deg.)"); | |
745 | TCanvas* cResMom_3_10_Deg = DrawResMomVsMom("cResMom_3_10_Deg", "momentum residual for tracks between 3 and 10 degrees", | |
746 | hResMomVertexVsMom_3_10_Deg, 10, f2, "momentum residuals at vertex (tracks in [3,10] deg.)"); | |
747 | TCanvas* cResMom_0_2_DegMC = DrawResMomVsMom("cResMom_0_2_DegMC", "momentum residuals for tracks with MC angle < 2 degrees", hResMomVertexVsMom_0_2_DegMC, 5); | |
748 | ||
749 | // diplay slopeX residuals | |
750 | TCanvas* cResSlopeX = DrawVsAng("cResSlopeX", "slope_{X} residual at vertex in 3 angular regions", hResSlopeXVertex, hResSlopeXVertexVsAngle); | |
751 | TCanvas* cResSlopeXMC = DrawVsAng("cResSlopeXMC", "slope_{X} residual at vertex in 3 MC angular regions", hResSlopeXVertex, hResSlopeXVertexVsMCAngle); | |
752 | TCanvas* cResSlopeXVsPos = DrawVsPos("cResSlopeXVsPos", "slope_{X} residual at vertex versus position at absorber end in 3 MC angular regions", | |
753 | hResSlopeXVertexVsPosAbsEnd_0_2_DegMC, hResSlopeXVertexVsPosAbsEnd_2_3_DegMC, hResSlopeXVertexVsPosAbsEnd_3_10_DegMC); | |
754 | ||
755 | // diplay slopeY residuals | |
756 | TCanvas* cResSlopeY = DrawVsAng("cResSlopeY", "slope_{Y} residual at vertex in 3 angular regions", hResSlopeYVertex, hResSlopeYVertexVsAngle); | |
757 | TCanvas* cResSlopeYMC = DrawVsAng("cResSlopeYMC", "slope_{Y} residual at vertex in 3 MC angular regions", hResSlopeYVertex, hResSlopeYVertexVsMCAngle); | |
758 | TCanvas* cResSlopeYVsPos = DrawVsPos("cResSlopeYVsPos", "slope_{Y} residual at vertex versus position at absorber end in 3 MC angular regions", | |
759 | hResSlopeYVertexVsPosAbsEnd_0_2_DegMC, hResSlopeYVertexVsPosAbsEnd_2_3_DegMC, hResSlopeYVertexVsPosAbsEnd_3_10_DegMC); | |
760 | ||
761 | // diplay P*DCA | |
762 | TCanvas* cPDCA = DrawVsAng("cPDCA", "p #times DCA in 3 angular regions", hPDCA, hPDCAVsAngle); | |
763 | TCanvas* cPDCAMC = DrawVsAng("cPDCAMC", "p #times DCA in 3 MC angular regions", hPDCA, hPDCAVsMCAngle); | |
764 | TCanvas* cPDCAVsPos = DrawVsPos("cPDCAVsPos", "p #times DCA versus position at absorber end in 3 MC angular regions", | |
765 | hPDCAVsPosAbsEnd_0_2_DegMC, hPDCAVsPosAbsEnd_2_3_DegMC, hPDCAVsPosAbsEnd_3_10_DegMC); | |
766 | ||
767 | // diplay eta residuals | |
768 | TCanvas* cResEta = DrawVsAng("cResEta", "eta residual at vertex in 3 angular regions", hResEtaVertex, hResEtaVertexVsAngle); | |
769 | TCanvas* cResEtaMC = DrawVsAng("cResEtaMC", "eta residual at vertex in 3 MC angular regions", hResEtaVertex, hResEtaVertexVsMCAngle); | |
770 | TCanvas* cResEtaVsPos = DrawVsPos("cResEtaVsPos", "eta residual at vertex versus position at absorber end in 3 MC angular regions", | |
771 | hResEtaVertexVsPosAbsEnd_0_2_DegMC, hResEtaVertexVsPosAbsEnd_2_3_DegMC, hResEtaVertexVsPosAbsEnd_3_10_DegMC); | |
772 | ||
773 | // diplay phi residuals | |
774 | TCanvas* cResPhi = DrawVsAng("cResPhi", "phi residual at vertex in 3 angular regions", hResPhiVertex, hResPhiVertexVsAngle); | |
775 | TCanvas* cResPhiMC = DrawVsAng("cResPhiMC", "phi residual at vertex in 3 MC angular regions", hResPhiVertex, hResPhiVertexVsMCAngle); | |
776 | TCanvas* cResPhiVsPos = DrawVsPos("cResPhiVsPos", "phi residual at vertex versus position at absorber end in 3 MC angular regions", | |
777 | hResPhiVertexVsPosAbsEnd_0_2_DegMC, hResPhiVertexVsPosAbsEnd_2_3_DegMC, hResPhiVertexVsPosAbsEnd_3_10_DegMC); | |
c687aa97 | 778 | |
779 | // ###################################### save histogram ###################################### // | |
b8dc484b | 780 | histoFile->Write(); |
c687aa97 | 781 | |
782 | histoFile->cd("momentumAtVertex"); | |
783 | gMeanResMomVertexVsMom->Write(); | |
784 | gMostProbResMomVertexVsMom->Write(); | |
785 | gSigmaResMomVertexVsMom->Write(); | |
e1fe81b8 | 786 | cResMom->Write(); |
787 | cResMomMC->Write(); | |
788 | cResMomVsPos->Write(); | |
789 | cResMom_2_3_Deg->Write(); | |
790 | cResMom_3_10_Deg->Write(); | |
791 | cResMom_0_2_DegMC->Write(); | |
792 | ||
793 | histoFile->cd("slopesAtVertex"); | |
794 | gMeanResSlopeXVertexVsMom->Write(); | |
795 | gMeanResSlopeYVertexVsMom->Write(); | |
796 | gSigmaResSlopeXVertexVsMom->Write(); | |
797 | gSigmaResSlopeYVertexVsMom->Write(); | |
798 | cResSlopeX->Write(); | |
799 | cResSlopeY->Write(); | |
800 | cResSlopeXMC->Write(); | |
801 | cResSlopeYMC->Write(); | |
802 | cResSlopeXVsPos->Write(); | |
803 | cResSlopeYVsPos->Write(); | |
804 | ||
805 | histoFile->cd("DCA"); | |
806 | gSigmaPDCAVsMom_2_3_Deg->Write(); | |
807 | gSigmaPDCAVsMom_3_10_Deg->Write(); | |
808 | gMeanPMCSAngVsMom_2_3_Deg->Write(); | |
809 | gSigmaPMCSAngVsMom_2_3_Deg->Write(); | |
810 | gMeanPMCSAngVsMom_3_10_Deg->Write(); | |
811 | gSigmaPMCSAngVsMom_3_10_Deg->Write(); | |
812 | cPDCA->Write(); | |
813 | cPDCAMC->Write(); | |
814 | cPDCAVsPos->Write(); | |
815 | ||
816 | histoFile->cd("etaAtVertex"); | |
817 | gMeanResEtaVertexVsMom->Write(); | |
818 | gSigmaResEtaVertexVsMom->Write(); | |
819 | cResEta->Write(); | |
820 | cResEtaMC->Write(); | |
821 | cResEtaVsPos->Write(); | |
822 | ||
823 | histoFile->cd("phiAtVertex"); | |
824 | gMeanResPhiVertexVsMom->Write(); | |
825 | gSigmaResPhiVertexVsMom->Write(); | |
826 | cResPhi->Write(); | |
827 | cResPhiMC->Write(); | |
828 | cResPhiVsPos->Write(); | |
c687aa97 | 829 | |
830 | histoFile->cd("momentumAtFirstCluster"); | |
831 | gMeanResMomFirstClusterVsMom->Write(); | |
832 | gSigmaResMomFirstClusterVsMom->Write(); | |
833 | ||
e1fe81b8 | 834 | histoFile->cd("slopesAtFirstCluster"); |
835 | gMeanResSlopeXFirstClusterVsMom->Write(); | |
836 | gMeanResSlopeYFirstClusterVsMom->Write(); | |
837 | gSigmaResSlopeXFirstClusterVsMom->Write(); | |
838 | gSigmaResSlopeYFirstClusterVsMom->Write(); | |
839 | ||
c687aa97 | 840 | histoFile->cd("clusters"); |
f202486b | 841 | gResidualXPerChMean->Write(); |
842 | gResidualXPerChSigma->Write(); | |
843 | gResidualYPerChMean->Write(); | |
844 | gResidualYPerChSigma->Write(); | |
c687aa97 | 845 | |
b8dc484b | 846 | histoFile->Close(); |
c687aa97 | 847 | |
e1fe81b8 | 848 | // ###################################### clean memory ###################################### // |
849 | delete cResMom; | |
850 | delete cResMomMC; | |
851 | delete cResMomVsPos; | |
852 | delete cResMom_2_3_Deg; | |
853 | delete cResMom_3_10_Deg; | |
854 | delete cResMom_0_2_DegMC; | |
855 | delete cResSlopeX; | |
856 | delete cResSlopeY; | |
857 | delete cResSlopeXMC; | |
858 | delete cResSlopeYMC; | |
859 | delete cResSlopeXVsPos; | |
860 | delete cResSlopeYVsPos; | |
861 | delete cPDCA; | |
862 | delete cPDCAMC; | |
863 | delete cPDCAVsPos; | |
864 | delete cResEta; | |
865 | delete cResEtaMC; | |
866 | delete cResEtaVsPos; | |
867 | delete cResPhi; | |
868 | delete cResPhiMC; | |
869 | delete cResPhiVsPos; | |
c687aa97 | 870 | |
e1fe81b8 | 871 | // ###################################### print statistics ###################################### // |
872 | printf("\n"); | |
873 | printf("nb of reconstructible tracks: %d \n", nReconstructibleTracks); | |
874 | printf("nb of reconstructed tracks: %d \n", nReconstructedTracks); | |
875 | printf("nb of reconstructible tracks which are reconstructed: %d \n", nReconstructibleTracksCheck); | |
876 | ||
877 | aMCSMoy /= (Double_t) nMCS; | |
878 | aMCS2Moy /= (Double_t) nMCS; | |
879 | dMCSMoy /= (Double_t) nMCS; | |
880 | dMCS2Moy /= (Double_t) nMCS; | |
881 | adMCSMoy /= (Double_t) nMCS; | |
882 | Double_t sigma2_ThetaMCS = aMCS2Moy - aMCSMoy*aMCSMoy; | |
883 | Double_t sigma2_PosMCS = dMCS2Moy - dMCSMoy*dMCSMoy; | |
884 | Double_t cov_ThetaPosMCS = - (adMCSMoy - aMCSMoy*dMCSMoy); | |
885 | printf("\nmultiple scattering of tracks between 3 and 10 deg. at absorber end:\n"); | |
886 | printf(" sigma_ThetaMCS = %f\n", TMath::Sqrt(sigma2_ThetaMCS)); | |
887 | printf(" sigma_PosMCS = %f\n", TMath::Sqrt(sigma2_PosMCS)); | |
888 | printf(" cov_ThetaPosMCS = %f\n", cov_ThetaPosMCS); | |
889 | printf(" --> sigma_DCA = %f\n", TMath::Sqrt(AliMUONConstants::AbsZEnd()*AliMUONConstants::AbsZEnd()*sigma2_ThetaMCS | |
890 | - 2.*AliMUONConstants::AbsZEnd()*cov_ThetaPosMCS + sigma2_PosMCS)); | |
891 | printf("\n"); | |
c687aa97 | 892 | } |
893 | ||
894 | //------------------------------------------------------------------------------------ | |
895 | Double_t langaufun(Double_t *x, Double_t *par) { | |
896 | ||
897 | //Fit parameters: | |
898 | //par[0]=Width (scale) parameter of Landau density | |
899 | //par[1]=Most Probable (MP, location) parameter of Landau density | |
900 | //par[2]=Total area (integral -inf to inf, normalization constant) | |
901 | //par[3]=Width (sigma) of convoluted Gaussian function | |
902 | // | |
903 | //In the Landau distribution (represented by the CERNLIB approximation), | |
904 | //the maximum is located at x=-0.22278298 with the location parameter=0. | |
905 | //This shift is corrected within this function, so that the actual | |
906 | //maximum is identical to the MP parameter. | |
907 | ||
908 | // Numeric constants | |
909 | Double_t invsq2pi = 0.3989422804014; // (2 pi)^(-1/2) | |
910 | Double_t mpshift = -0.22278298; // Landau maximum location | |
911 | ||
912 | // Control constants | |
913 | Double_t np = 100.0; // number of convolution steps | |
914 | Double_t sc = 5.0; // convolution extends to +-sc Gaussian sigmas | |
915 | ||
916 | // Variables | |
917 | Double_t xx; | |
918 | Double_t mpc; | |
919 | Double_t fland; | |
920 | Double_t sum = 0.0; | |
921 | Double_t xlow,xupp; | |
922 | Double_t step; | |
923 | Double_t i; | |
924 | ||
925 | ||
926 | // MP shift correction | |
927 | mpc = par[1] - mpshift * par[0]; | |
928 | ||
929 | // Range of convolution integral | |
930 | xlow = x[0] - sc * par[3]; | |
931 | xupp = x[0] + sc * par[3]; | |
932 | ||
933 | step = (xupp-xlow) / np; | |
934 | ||
935 | // Convolution integral of Landau and Gaussian by sum | |
936 | for(i=1.0; i<=np/2; i++) { | |
937 | xx = xlow + (i-.5) * step; | |
938 | //change x -> -x because the tail of the Landau is at the left here... | |
939 | fland = TMath::Landau(-xx,mpc,par[0]) / par[0]; | |
940 | sum += fland * TMath::Gaus(x[0],xx,par[3]); | |
941 | ||
942 | //change x -> -x because the tail of the Landau is at the left here... | |
943 | xx = xupp - (i-.5) * step; | |
944 | fland = TMath::Landau(-xx,mpc,par[0]) / par[0]; | |
945 | sum += fland * TMath::Gaus(x[0],xx,par[3]); | |
946 | } | |
947 | ||
948 | return (par[2] * step * sum * invsq2pi / par[3]); | |
b8dc484b | 949 | } |
950 | ||
e1fe81b8 | 951 | //------------------------------------------------------------------------------------ |
952 | void FitGausResVsMom(TH2* h, Int_t nBins, const Double_t mean0, const Double_t sigma0, | |
953 | const char* fitting, TGraphAsymmErrors* gMean, TGraphAsymmErrors* gSigma) | |
954 | { | |
955 | /// generic function to fit residuals versus momentum with a gaussian | |
956 | static TF1* fGaus = 0x0; | |
957 | if (!fGaus) fGaus = new TF1("fGaus","gaus"); | |
958 | ||
959 | Int_t rebinFactorX = TMath::Max(h->GetNbinsX()/nBins, 1); | |
960 | for (Int_t i = rebinFactorX; i <= h->GetNbinsX(); i+=rebinFactorX) { | |
961 | cout<<Form("\rFitting %s... %d/%d",fitting,i/rebinFactorX,nBins)<<flush; | |
962 | TH1D *tmp = h->ProjectionY("tmp",i-rebinFactorX+1,i,"e"); | |
963 | fGaus->SetParameters(tmp->GetEntries(), mean0, sigma0); | |
964 | tmp->Fit("fGaus","WWNQ"); | |
965 | Int_t rebin = TMath::Max(Int_t(0.5*fGaus->GetParameter(2)/tmp->GetBinWidth(1)),1); | |
966 | while (tmp->GetNbinsX()%rebin!=0) rebin--; | |
967 | tmp->Rebin(rebin); | |
968 | tmp->Fit("fGaus","NQ"); | |
969 | h->GetXaxis()->SetRange(i-rebinFactorX+1,i); | |
970 | Double_t p = h->GetMean(); | |
971 | h->GetXaxis()->SetRange(); | |
972 | Double_t pErr[2] = {p-h->GetBinLowEdge(i-rebinFactorX+1), h->GetBinLowEdge(i+1)-p}; | |
973 | gMean->SetPoint(i/rebinFactorX-1, p, fGaus->GetParameter(1)); | |
974 | gMean->SetPointError(i/rebinFactorX-1, pErr[0], pErr[1], fGaus->GetParError(1), fGaus->GetParError(1)); | |
975 | gSigma->SetPoint(i/rebinFactorX-1, p, fGaus->GetParameter(2)); | |
976 | gSigma->SetPointError(i/rebinFactorX-1, pErr[0], pErr[1], fGaus->GetParError(2), fGaus->GetParError(2)); | |
977 | delete tmp; | |
978 | } | |
979 | cout<<Form("\rFitting %s... %d/%d",fitting,nBins,nBins)<<endl; | |
980 | } | |
981 | ||
982 | //------------------------------------------------------------------------------------ | |
983 | void FitPDCAVsMom(TH2* h, Int_t nBins, const char* fitting, TGraphAsymmErrors* gSigma) | |
984 | { | |
985 | /// generic function to fit p*DCA distributions | |
986 | static TF1* fPGaus = 0x0; | |
987 | if (!fPGaus) fPGaus = new TF1("fPGaus","x*gaus"); | |
988 | ||
989 | Int_t rebinFactorX = TMath::Max(h->GetNbinsX()/nBins, 1); | |
990 | for (Int_t i = rebinFactorX; i <= h->GetNbinsX(); i+=rebinFactorX) { | |
991 | cout<<Form("\rFitting %s... %d/%d",fitting,i/rebinFactorX,nBins)<<flush; | |
992 | TH1D *tmp = h->ProjectionY("tmp",i-rebinFactorX+1,i,"e"); | |
993 | fPGaus->SetParameters(1.,-100.,100.); | |
994 | Int_t rebin = 50.*(tmp->GetNbinsX()/(tmp->GetBinLowEdge(tmp->GetNbinsX()+1)-tmp->GetBinLowEdge(1))); | |
995 | while (tmp->GetNbinsX()%rebin!=0) rebin--; | |
996 | tmp->Rebin(rebin); | |
997 | tmp->Fit("fPGaus","NQ"); | |
998 | h->GetXaxis()->SetRange(i-rebinFactorX+1,i); | |
999 | Double_t p = h->GetMean(); | |
1000 | h->GetXaxis()->SetRange(); | |
1001 | Double_t pErr[2] = {p-h->GetBinLowEdge(i-rebinFactorX+1), h->GetBinLowEdge(i+1)-p}; | |
1002 | gSigma->SetPoint(i/rebinFactorX-1, p, fPGaus->GetParameter(2)); | |
1003 | gSigma->SetPointError(i/rebinFactorX-1, pErr[0], pErr[1], fPGaus->GetParError(2), fPGaus->GetParError(2)); | |
1004 | delete tmp; | |
1005 | } | |
1006 | cout<<Form("\rFitting %s... %d/%d",fitting,nBins,nBins)<<endl; | |
1007 | } | |
1008 | ||
1009 | //------------------------------------------------------------------------------------ | |
1010 | TCanvas* DrawVsAng(const char* name, const char* title, TH1* h1, TH2* h2) | |
1011 | { | |
1012 | /// generic function to draw histograms versus absorber angular region | |
1013 | TCanvas* c = new TCanvas(name, title); | |
1014 | c->cd(); | |
1015 | h1->Draw(); | |
1016 | TH1D *proj1 = h2->ProjectionY(Form("%s_proj_0_2",h2->GetName()),1,2); | |
1017 | proj1->Draw("sames"); | |
1018 | proj1->SetLineColor(2); | |
1019 | TH1D *proj2 = h2->ProjectionY(Form("%s_proj_2_3",h2->GetName()),3,3); | |
1020 | proj2->Draw("sames"); | |
1021 | proj2->SetLineColor(4); | |
1022 | TH1D *proj3 = h2->ProjectionY(Form("%s__proj_3_10",h2->GetName()),4,10); | |
1023 | proj3->Draw("sames"); | |
1024 | proj3->SetLineColor(3); | |
1025 | return c; | |
1026 | } | |
1027 | ||
1028 | //------------------------------------------------------------------------------------ | |
1029 | TCanvas* DrawVsPos(const char* name, const char* title, TH2* h1, TH2* h2, TH2* h3) | |
1030 | { | |
1031 | /// generic function to draw histograms versus position at absorber end | |
1032 | TCanvas* c = new TCanvas(name, title); | |
1033 | c->cd(); | |
1034 | h1->Draw(); | |
1035 | h1->SetMarkerColor(2); | |
1036 | h2->Draw("sames"); | |
1037 | h2->SetMarkerColor(4); | |
1038 | h3->Draw("sames"); | |
1039 | h3->SetMarkerColor(3); | |
1040 | return c; | |
1041 | } | |
1042 | ||
1043 | //------------------------------------------------------------------------------------ | |
1044 | TCanvas* DrawResMomVsMom(const char* name, const char* title, TH2* h, Int_t nBins, TF1* f2, const char* fitting) | |
1045 | { | |
1046 | /// generic function to draw and eventually fit momentum residuals versus momentum | |
1047 | TLegend* l = new TLegend(0.15,0.25,0.3,0.85); | |
1048 | TCanvas* c = new TCanvas(name, title); | |
1049 | c->cd(); | |
1050 | TH1D* proj = 0x0; | |
1051 | h->Sumw2(); | |
1052 | Int_t rebinFactorX = TMath::Max(h->GetNbinsX()/nBins, 1); | |
1053 | for (Int_t i = rebinFactorX; i <= h->GetNbinsX(); i+=rebinFactorX) { | |
1054 | if (f2) cout<<Form("\rFitting %s... %d/%d",fitting,i/rebinFactorX,nBins)<<flush; | |
1055 | proj = h->ProjectionY(Form("%s_%d",h->GetName(),i/rebinFactorX),i-rebinFactorX+1,i); | |
1056 | if (proj->GetEntries() > 0) proj->Scale(1./proj->GetEntries()); | |
1057 | proj->Draw((i==rebinFactorX)?"hist":"histsames"); | |
1058 | proj->SetLineColor(i/rebinFactorX); | |
1059 | if (f2) { | |
1060 | f2->SetParameters(0.2,0.,1.,1.); | |
1061 | f2->SetLineColor(i/rebinFactorX); | |
1062 | proj->Fit("f2","WWNQ","sames"); | |
1063 | Double_t fwhm = f2->GetParameter(0); | |
1064 | Double_t sigma = f2->GetParameter(3); | |
1065 | Double_t sigmaP = TMath::Sqrt(sigma*sigma + fwhm*fwhm/(8.*log(2.))); | |
1066 | Int_t rebin = TMath::Max(Int_t(0.5*sigmaP/proj->GetBinWidth(1)),1); | |
1067 | while (proj->GetNbinsX()%rebin!=0) rebin--; | |
1068 | proj->Rebin(rebin); | |
1069 | proj->Scale(1./rebin); | |
1070 | proj->Fit("f2","Q","sames"); | |
1071 | } else proj->SetLineWidth(2); | |
1072 | Double_t p = 0.5 * (h->GetBinLowEdge(i-rebinFactorX+1) + h->GetBinLowEdge(i+1)); | |
1073 | l->AddEntry(proj,Form("%5.1f GeV",p)); | |
1074 | } | |
1075 | if (f2) cout<<Form("\rFitting %s... %d/%d",fitting,nBins,nBins)<<endl; | |
1076 | l->Draw("same"); | |
1077 | return c; | |
1078 | } | |
1079 |