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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" |
ce8cd162 | 31 | #include "TObjArray.h" |
b8dc484b | 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); |
c231afb9 | 64 | void FitPDCAVsMom(TH2* h, Int_t nBins, const char* fitting, TGraphAsymmErrors* gMean, TGraphAsymmErrors* gSigma); |
e1fe81b8 | 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 | //------------------------------------------------------------------------------------ | |
c231afb9 | 70 | void MUONRecoCheck(Int_t nEvent = -1, const char* pathSim="./generated/", const char* esdFileName="AliESDs.root", |
71 | const char* ocdbPath = "local://$ALICE_ROOT/OCDB", const Double_t pMin = 0., const Double_t pMax = 300., | |
72 | const Int_t pNBins = 30, Int_t absorberRegion = -1) | |
e54bf126 | 73 | { |
e1fe81b8 | 74 | /// Associate the reconstructed tracks with the simulated ones and check the quality of the reconstruction |
75 | /// (tracking/trigger efficiency; momentum, slope,... resolutions at first cluster and at vertex; cluster resolution). | |
c231afb9 | 76 | /// - You can choose the momentum range and number of bins used to study the track resolution versus momentum. |
77 | /// - You can limit the calculation of track resolution at vertex to the tracks crossing the absorber in a given region | |
e1fe81b8 | 78 | /// with the flag "absorberRegion": -1=all, 1=[2,3]deg, 2=[3,10]deg. |
79 | ||
80 | Double_t aAbsLimits[2]; | |
81 | if (absorberRegion > -1) { | |
82 | if (absorberRegion == 1) { | |
83 | aAbsLimits[0] = 2.; | |
84 | aAbsLimits[1] = 3.; | |
85 | } else if (absorberRegion == 2) { | |
86 | aAbsLimits[0] = 3.; | |
87 | aAbsLimits[1] = 10.; | |
88 | } else { | |
89 | cout<<"Unknown absorber region. Valid choices are: -1=all, 1=[2,3]deg, 2=[3,10]deg"<<endl; | |
90 | return; | |
91 | } | |
92 | } else { | |
93 | aAbsLimits[0] = 0.; | |
94 | aAbsLimits[1] = 90.; | |
95 | } | |
b8dc484b | 96 | |
c231afb9 | 97 | cout<<endl<<"Momentum range for track resolution studies: "<<pNBins<<" bins in ["<<pMin<<","<<pMax<<"] GeV/c"<<endl; |
98 | if (pMin >= pMax || pNBins <= 0) { | |
99 | cout<<"--> incorrect momentum range"<<endl<<endl; | |
100 | return; | |
101 | } else cout<<endl; | |
102 | ||
c687aa97 | 103 | AliLog::SetClassDebugLevel("AliMCEvent",-1); |
104 | ||
105 | // ###################################### define histograms ###################################### // | |
b8dc484b | 106 | // File for histograms and histogram booking |
107 | TFile *histoFile = new TFile("MUONRecoCheck.root", "RECREATE"); | |
48217459 | 108 | |
9f164762 | 109 | TH1F *hReconstructible = new TH1F("hReconstructible"," Nb of reconstructible tracks / evt",15,-0.5,14.5); |
b8dc484b | 110 | TH1F *hReco = new TH1F("hReco"," Nb of reconstructed tracks / evt",15,-0.5,14.5); |
96ebe67e | 111 | TH1F *hNClusterComp = new TH1F("hNClusterComp"," Nb of compatible clusters / track ",15,-0.5,14.5); |
b8dc484b | 112 | TH1F *hTrackRefID = new TH1F("hTrackRefID"," track reference ID ",100,-0.5,99.5); |
9f164762 | 113 | TH1F *hTriggerable = new TH1F("hTriggerable"," Nb of triggerable tracks / evt",15,-0.5,14.5); |
114 | TH1F *hTriggered = new TH1F("hTriggered"," Nb of triggered tracks / evt",15,-0.5,14.5); | |
b8dc484b | 115 | |
c687aa97 | 116 | // momentum resolution at vertex |
117 | histoFile->mkdir("momentumAtVertex","momentumAtVertex"); | |
118 | histoFile->cd("momentumAtVertex"); | |
119 | ||
c231afb9 | 120 | const Double_t pEdges[2] = {pMin, pMax}; |
c687aa97 | 121 | const Int_t deltaPAtVtxNBins = 250; |
c231afb9 | 122 | Double_t deltaPAtVtxEdges[2]; |
123 | if (pMax < 50.) { deltaPAtVtxEdges[0] = -20.; deltaPAtVtxEdges[1] = 5.; } | |
124 | else { deltaPAtVtxEdges[0] = -35.; deltaPAtVtxEdges[1] = 15.; } | |
c687aa97 | 125 | |
126 | TH1F *hResMomVertex = new TH1F("hResMomVertex"," delta P at vertex;#Delta_{p} (GeV/c)",deltaPAtVtxNBins,deltaPAtVtxEdges[0],deltaPAtVtxEdges[1]); | |
127 | ||
128 | 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]); | |
129 | 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]); | |
130 | 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]); | |
131 | 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]); | |
132 | ||
e1fe81b8 | 133 | 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]); |
134 | 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]); | |
135 | 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 | 136 | |
137 | 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]); | |
138 | 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]); | |
139 | 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]); | |
140 | ||
e1fe81b8 | 141 | TGraphAsymmErrors* gMeanResMomVertexVsMom = new TGraphAsymmErrors(pNBins); |
c687aa97 | 142 | gMeanResMomVertexVsMom->SetName("gMeanResMomVertexVsMom"); |
143 | gMeanResMomVertexVsMom->SetTitle("<#Delta_{p}> at vertex versus p;p (GeV/c);<#Delta_{p}> (GeV/c)"); | |
e1fe81b8 | 144 | TGraphAsymmErrors* gMostProbResMomVertexVsMom = new TGraphAsymmErrors(pNBins); |
c687aa97 | 145 | gMostProbResMomVertexVsMom->SetName("gMostProbResMomVertexVsMom"); |
146 | gMostProbResMomVertexVsMom->SetTitle("Most probable #Delta_{p} at vertex versus p;p (GeV/c);Most prob. #Delta_{p} (GeV/c)"); | |
e1fe81b8 | 147 | TGraphAsymmErrors* gSigmaResMomVertexVsMom = new TGraphAsymmErrors(pNBins); |
c687aa97 | 148 | gSigmaResMomVertexVsMom->SetName("gSigmaResMomVertexVsMom"); |
e1fe81b8 | 149 | gSigmaResMomVertexVsMom->SetTitle("#sigma_{p}/p at vertex versus p;p (GeV/c);#sigma_{p}/p (%)"); |
c687aa97 | 150 | |
151 | // momentum resolution at first cluster | |
152 | histoFile->mkdir("momentumAtFirstCluster","momentumAtFirstCluster"); | |
153 | histoFile->cd("momentumAtFirstCluster"); | |
154 | ||
155 | const Int_t deltaPAtFirstClNBins = 500; | |
c231afb9 | 156 | Double_t deltaPAtFirstClEdges[2]; |
157 | if (pMax < 25.) { deltaPAtFirstClEdges[0] = -5.; deltaPAtFirstClEdges[1] = 5.; } | |
158 | else if (pMax < 50.) { deltaPAtFirstClEdges[0] = -10.; deltaPAtFirstClEdges[1] = 10.; } | |
159 | else { deltaPAtFirstClEdges[0] = -25.; deltaPAtFirstClEdges[1] = 25.; } | |
c687aa97 | 160 | |
161 | TH1F *hResMomFirstCluster = new TH1F("hResMomFirstCluster"," delta P at first cluster;#Delta_{p} (GeV/c)",deltaPAtFirstClNBins,deltaPAtFirstClEdges[0],deltaPAtFirstClEdges[1]); | |
162 | 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]); | |
163 | ||
e1fe81b8 | 164 | TGraphAsymmErrors* gMeanResMomFirstClusterVsMom = new TGraphAsymmErrors(pNBins); |
c687aa97 | 165 | gMeanResMomFirstClusterVsMom->SetName("gMeanResMomFirstClusterVsMom"); |
166 | gMeanResMomFirstClusterVsMom->SetTitle("<#Delta_{p}> at first cluster versus p;p (GeV/c);<#Delta_{p}> (GeV/c)"); | |
e1fe81b8 | 167 | TGraphAsymmErrors* gSigmaResMomFirstClusterVsMom = new TGraphAsymmErrors(pNBins); |
c687aa97 | 168 | gSigmaResMomFirstClusterVsMom->SetName("gSigmaResMomFirstClusterVsMom"); |
e1fe81b8 | 169 | gSigmaResMomFirstClusterVsMom->SetTitle("#sigma_{p}/p at first cluster versus p;p (GeV/c);#sigma_{p}/p (%)"); |
170 | ||
171 | // angular resolution at vertex | |
172 | histoFile->mkdir("slopesAtVertex","slopesAtVertex"); | |
173 | histoFile->cd("slopesAtVertex"); | |
174 | ||
175 | const Int_t deltaSlopeAtVtxNBins = 500; | |
176 | const Double_t deltaSlopeAtVtxEdges[2] = {-0.05, 0.05}; | |
177 | ||
178 | TH1F *hResSlopeXVertex = new TH1F("hResSlopeXVertex","#Delta_{slope_{X}} at vertex;#Delta_{slope_{X}}", deltaSlopeAtVtxNBins, deltaSlopeAtVtxEdges[0], deltaSlopeAtVtxEdges[1]); | |
179 | TH1F *hResSlopeYVertex = new TH1F("hResSlopeYVertex","#Delta_{slope_{Y}} at vertex;#Delta_{slope_{Y}}", deltaSlopeAtVtxNBins, deltaSlopeAtVtxEdges[0], deltaSlopeAtVtxEdges[1]); | |
180 | 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]); | |
181 | 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]); | |
182 | ||
183 | 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]); | |
184 | 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]); | |
185 | 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]); | |
186 | 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]); | |
187 | 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]); | |
188 | 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]); | |
189 | ||
190 | 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]); | |
191 | 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]); | |
192 | 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]); | |
193 | 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]); | |
194 | ||
195 | TGraphAsymmErrors* gMeanResSlopeXVertexVsMom = new TGraphAsymmErrors(pNBins); | |
196 | gMeanResSlopeXVertexVsMom->SetName("gMeanResSlopeXVertexVsMom"); | |
197 | gMeanResSlopeXVertexVsMom->SetTitle("<#Delta_{slope_{X}}> at vertex versus p;p (GeV/c);<#Delta_{slope_{X}}>"); | |
198 | TGraphAsymmErrors* gSigmaResSlopeXVertexVsMom = new TGraphAsymmErrors(pNBins); | |
199 | gSigmaResSlopeXVertexVsMom->SetName("gSigmaResSlopeXVertexVsMom"); | |
200 | gSigmaResSlopeXVertexVsMom->SetTitle("#sigma_{slope_{X}} at vertex versus p;p (GeV/c);#sigma_{slope_{X}}"); | |
201 | TGraphAsymmErrors* gMeanResSlopeYVertexVsMom = new TGraphAsymmErrors(pNBins); | |
202 | gMeanResSlopeYVertexVsMom->SetName("gMeanResSlopeYVertexVsMom"); | |
203 | gMeanResSlopeYVertexVsMom->SetTitle("<#Delta_{slope_{Y}}> at vertex versus p;p (GeV/c);<#Delta_{slope_{Y}}>"); | |
204 | TGraphAsymmErrors* gSigmaResSlopeYVertexVsMom = new TGraphAsymmErrors(pNBins); | |
205 | gSigmaResSlopeYVertexVsMom->SetName("gSigmaResSlopeYVertexVsMom"); | |
206 | gSigmaResSlopeYVertexVsMom->SetTitle("#sigma_{slope_{Y}} at vertex versus p;p (GeV/c);#sigma_{slope_{Y}}"); | |
207 | ||
208 | // angular resolution at first cluster | |
209 | histoFile->mkdir("slopesAtFirstCluster","slopesAtFirstCluster"); | |
210 | histoFile->cd("slopesAtFirstCluster"); | |
211 | ||
212 | const Int_t deltaSlopeAtFirstClNBins = 500; | |
213 | const Double_t deltaSlopeAtFirstClEdges[2] = {-0.01, 0.01}; | |
214 | ||
215 | TH1F *hResSlopeXFirstCluster = new TH1F("hResSlopeXFirstCluster","#Delta_{slope_{X}} at first cluster;#Delta_{slope_{X}}", deltaSlopeAtFirstClNBins, deltaSlopeAtFirstClEdges[0], deltaSlopeAtFirstClEdges[1]); | |
216 | 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]); | |
217 | TH1F *hResSlopeYFirstCluster = new TH1F("hResSlopeYFirstCluster","#Delta_{slope_{Y}} at first cluster;#Delta_{slope_{Y}}", deltaSlopeAtFirstClNBins, deltaSlopeAtFirstClEdges[0], deltaSlopeAtFirstClEdges[1]); | |
218 | 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]); | |
219 | ||
220 | TGraphAsymmErrors* gMeanResSlopeXFirstClusterVsMom = new TGraphAsymmErrors(pNBins); | |
221 | gMeanResSlopeXFirstClusterVsMom->SetName("gMeanResSlopeXFirstClusterVsMom"); | |
222 | gMeanResSlopeXFirstClusterVsMom->SetTitle("<#Delta_{slope_{X}}> at first cluster versus p;p (GeV/c);<#Delta_{slope_{X}}>"); | |
223 | TGraphAsymmErrors* gSigmaResSlopeXFirstClusterVsMom = new TGraphAsymmErrors(pNBins); | |
224 | gSigmaResSlopeXFirstClusterVsMom->SetName("gSigmaResSlopeXFirstClusterVsMom"); | |
225 | gSigmaResSlopeXFirstClusterVsMom->SetTitle("#sigma_{slope_{X}} at first cluster versus p;p (GeV/c);#sigma_{slope_{X}}"); | |
226 | TGraphAsymmErrors* gMeanResSlopeYFirstClusterVsMom = new TGraphAsymmErrors(pNBins); | |
227 | gMeanResSlopeYFirstClusterVsMom->SetName("gMeanResSlopeYFirstClusterVsMom"); | |
228 | gMeanResSlopeYFirstClusterVsMom->SetTitle("<#Delta_{slope_{Y}}> at first cluster versus p;p (GeV/c);<#Delta_{slope_{Y}}>"); | |
229 | TGraphAsymmErrors* gSigmaResSlopeYFirstClusterVsMom = new TGraphAsymmErrors(pNBins); | |
230 | gSigmaResSlopeYFirstClusterVsMom->SetName("gSigmaResSlopeYFirstClusterVsMom"); | |
231 | gSigmaResSlopeYFirstClusterVsMom->SetTitle("#sigma_{slope_{Y}} at first cluster versus p;p (GeV/c);#sigma_{slope_{Y}}"); | |
232 | ||
233 | // DCA resolution and MCS angular dispersion | |
234 | histoFile->mkdir("DCA","DCA"); | |
235 | histoFile->cd("DCA"); | |
236 | ||
237 | const Int_t deltaPDCANBins = 500; | |
238 | const Double_t deltaPDCAEdges[2] = {0., 1000.}; | |
c231afb9 | 239 | const Double_t deltaPMCSAngEdges[2] = {-1.5, 1.5}; |
e1fe81b8 | 240 | |
241 | TH1F *hPDCA = new TH1F("hPDCA","p #times DCA at vertex;p #times DCA (GeV #times cm)", deltaPDCANBins, deltaPDCAEdges[0], deltaPDCAEdges[1]); | |
242 | 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]); | |
243 | 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]); | |
244 | 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]); | |
245 | 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]); | |
246 | ||
247 | 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]); | |
248 | 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]); | |
249 | 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]); | |
250 | ||
251 | 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]); | |
252 | 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]); | |
253 | ||
c231afb9 | 254 | TGraphAsymmErrors* gMeanPDCAVsMom_2_3_Deg = new TGraphAsymmErrors(pNBins); |
255 | gMeanPDCAVsMom_2_3_Deg->SetName("gMeanPDCAVsMom_2_3_Deg"); | |
256 | gMeanPDCAVsMom_2_3_Deg->SetTitle("<p #times DCA> versus p for tracks within [2,3[ degrees at absorber end;p (GeV/c);<p #times DCA> (GeV #times cm)"); | |
e1fe81b8 | 257 | TGraphAsymmErrors* gSigmaPDCAVsMom_2_3_Deg = new TGraphAsymmErrors(pNBins); |
258 | gSigmaPDCAVsMom_2_3_Deg->SetName("gSigmaPDCAVsMom_2_3_Deg"); | |
259 | 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)"); | |
c231afb9 | 260 | TGraphAsymmErrors* gMeanPDCAVsMom_3_10_Deg = new TGraphAsymmErrors(pNBins); |
261 | gMeanPDCAVsMom_3_10_Deg->SetName("gMeanPDCAVsMom_3_10_Deg"); | |
262 | gMeanPDCAVsMom_3_10_Deg->SetTitle("<p #times DCA> versus p for tracks within [3,10[ degrees at absorber end;p (GeV/c);<p #times DCA> (GeV #times cm)"); | |
e1fe81b8 | 263 | TGraphAsymmErrors* gSigmaPDCAVsMom_3_10_Deg = new TGraphAsymmErrors(pNBins); |
264 | gSigmaPDCAVsMom_3_10_Deg->SetName("gSigmaPDCAVsMom_3_10_Deg"); | |
265 | 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)"); | |
266 | TGraphAsymmErrors* gMeanPMCSAngVsMom_2_3_Deg = new TGraphAsymmErrors(pNBins); | |
267 | gMeanPMCSAngVsMom_2_3_Deg->SetName("gMeanPMCSAngVsMom_2_3_Deg"); | |
268 | 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)"); | |
269 | TGraphAsymmErrors* gSigmaPMCSAngVsMom_2_3_Deg = new TGraphAsymmErrors(pNBins); | |
270 | gSigmaPMCSAngVsMom_2_3_Deg->SetName("gSigmaPMCSAngVsMom_2_3_Deg"); | |
271 | 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)"); | |
272 | TGraphAsymmErrors* gMeanPMCSAngVsMom_3_10_Deg = new TGraphAsymmErrors(pNBins); | |
273 | gMeanPMCSAngVsMom_3_10_Deg->SetName("gMeanPMCSAngVsMom_3_10_Deg"); | |
274 | 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)"); | |
275 | TGraphAsymmErrors* gSigmaPMCSAngVsMom_3_10_Deg = new TGraphAsymmErrors(pNBins); | |
276 | gSigmaPMCSAngVsMom_3_10_Deg->SetName("gSigmaPMCSAngVsMom_3_10_Deg"); | |
277 | 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)"); | |
278 | ||
279 | // eta resolution at vertex | |
280 | histoFile->mkdir("etaAtVertex","etaAtVertex"); | |
281 | histoFile->cd("etaAtVertex"); | |
282 | ||
283 | const Int_t deltaEtaAtVtxNBins = 500; | |
284 | const Double_t deltaEtaAtVtxEdges[2] = {-0.5, 0.5}; | |
285 | ||
286 | TH1F *hResEtaVertex = new TH1F("hResEtaVertex","#Delta_{eta} at vertex;#Delta_{eta}", deltaEtaAtVtxNBins, deltaEtaAtVtxEdges[0], deltaEtaAtVtxEdges[1]); | |
287 | 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]); | |
288 | ||
289 | 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]); | |
290 | 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]); | |
291 | 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]); | |
292 | ||
293 | 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]); | |
294 | 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]); | |
295 | ||
296 | TGraphAsymmErrors* gMeanResEtaVertexVsMom = new TGraphAsymmErrors(pNBins); | |
297 | gMeanResEtaVertexVsMom->SetName("gMeanResEtaVertexVsMom"); | |
298 | gMeanResEtaVertexVsMom->SetTitle("<#Delta_{eta}> at vertex versus p;p (GeV/c);<#Delta_{eta}>"); | |
299 | TGraphAsymmErrors* gSigmaResEtaVertexVsMom = new TGraphAsymmErrors(pNBins); | |
300 | gSigmaResEtaVertexVsMom->SetName("gSigmaResEtaVertexVsMom"); | |
301 | gSigmaResEtaVertexVsMom->SetTitle("#sigma_{eta} at vertex versus p;p (GeV/c);#sigma_{eta}"); | |
302 | ||
303 | // phi resolution at vertex | |
304 | histoFile->mkdir("phiAtVertex","phiAtVertex"); | |
305 | histoFile->cd("phiAtVertex"); | |
306 | ||
307 | const Int_t deltaPhiAtVtxNBins = 500; | |
308 | const Double_t deltaPhiAtVtxEdges[2] = {-0.5, 0.5}; | |
309 | ||
310 | TH1F *hResPhiVertex = new TH1F("hResPhiVertex","#Delta_{phi} at vertex;#Delta_{phi}", deltaPhiAtVtxNBins, deltaPhiAtVtxEdges[0], deltaPhiAtVtxEdges[1]); | |
311 | 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]); | |
312 | ||
313 | 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]); | |
314 | 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]); | |
315 | 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]); | |
316 | ||
317 | 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]); | |
318 | 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]); | |
319 | ||
320 | TGraphAsymmErrors* gMeanResPhiVertexVsMom = new TGraphAsymmErrors(pNBins); | |
321 | gMeanResPhiVertexVsMom->SetName("gMeanResPhiVertexVsMom"); | |
322 | gMeanResPhiVertexVsMom->SetTitle("<#Delta_{phi}> at vertex versus p;p (GeV/c);<#Delta_{phi}>"); | |
323 | TGraphAsymmErrors* gSigmaResPhiVertexVsMom = new TGraphAsymmErrors(pNBins); | |
324 | gSigmaResPhiVertexVsMom->SetName("gSigmaResPhiVertexVsMom"); | |
325 | gSigmaResPhiVertexVsMom->SetTitle("#sigma_{phi} at vertex versus p;p (GeV/c);#sigma_{phi}"); | |
c687aa97 | 326 | |
327 | // cluster resolution | |
328 | histoFile->mkdir("clusters","clusters"); | |
329 | histoFile->cd("clusters"); | |
330 | ||
f202486b | 331 | TH1F* hResidualXInCh[AliMUONConstants::NTrackingCh()]; |
332 | TH1F* hResidualYInCh[AliMUONConstants::NTrackingCh()]; | |
333 | for (Int_t i = 0; i < AliMUONConstants::NTrackingCh(); i++) { | |
334 | 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.); | |
335 | 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); | |
336 | } | |
c687aa97 | 337 | |
f202486b | 338 | TGraphErrors* gResidualXPerChMean = new TGraphErrors(AliMUONConstants::NTrackingCh()); |
339 | gResidualXPerChMean->SetName("gResidualXPerChMean"); | |
e1fe81b8 | 340 | gResidualXPerChMean->SetTitle("cluster-trackRef residual-X per Ch: mean;chamber ID;<#Delta_{X}> (cm)"); |
f202486b | 341 | gResidualXPerChMean->SetMarkerStyle(kFullDotLarge); |
342 | TGraphErrors* gResidualYPerChMean = new TGraphErrors(AliMUONConstants::NTrackingCh()); | |
343 | gResidualYPerChMean->SetName("gResidualYPerChMean"); | |
e1fe81b8 | 344 | gResidualYPerChMean->SetTitle("cluster-trackRef residual-Y per Ch: mean;chamber ID;<#Delta_{Y}> (cm)"); |
f202486b | 345 | gResidualYPerChMean->SetMarkerStyle(kFullDotLarge); |
346 | TGraphErrors* gResidualXPerChSigma = new TGraphErrors(AliMUONConstants::NTrackingCh()); | |
347 | gResidualXPerChSigma->SetName("gResidualXPerChSigma"); | |
e1fe81b8 | 348 | gResidualXPerChSigma->SetTitle("cluster-trackRef residual-X per Ch: sigma;chamber ID;#sigma_{X} (cm)"); |
f202486b | 349 | gResidualXPerChSigma->SetMarkerStyle(kFullDotLarge); |
350 | TGraphErrors* gResidualYPerChSigma = new TGraphErrors(AliMUONConstants::NTrackingCh()); | |
351 | gResidualYPerChSigma->SetName("gResidualYPerChSigma"); | |
e1fe81b8 | 352 | gResidualYPerChSigma->SetTitle("cluster-trackRef residual-Y per Ch: sigma;chamber ID;#sigma_{Y} (cm)"); |
f202486b | 353 | gResidualYPerChSigma->SetMarkerStyle(kFullDotLarge); |
9f164762 | 354 | |
355 | histoFile->mkdir("trigger"); | |
356 | histoFile->cd("trigger"); | |
357 | TH1F* hResidualTrigX11 = new TH1F("hResiudalTrigX11", "Residual X11", 100, -10., 10.); | |
358 | TH1F* hResidualTrigY11 = new TH1F("hResiudalTrigY11", "Residual Y11", 100, -10., 10.); | |
359 | TH1F* hResidualTrigSlopeY = new TH1F("hResiudalTrigSlopeY", "Residual Y slope", 100, -0.1, 0.1); | |
360 | TH1F* hTriggerableMatchFailed = new TH1F("hTriggerableMatchFailed", "Triggerable multiplicity for events with no match", 15, -0.5, 14.5); | |
361 | ||
48217459 | 362 | |
c687aa97 | 363 | // ###################################### initialize ###################################### // |
a99c3449 | 364 | AliMUONRecoCheck rc(esdFileName, pathSim); |
365 | ||
366 | // load necessary data from OCDB | |
367 | AliCDBManager::Instance()->SetDefaultStorage(ocdbPath); | |
368 | AliCDBManager::Instance()->SetRun(rc.GetRunNumber()); | |
c687aa97 | 369 | if (!AliMUONCDB::LoadField()) return; |
370 | AliMUONTrackExtrap::SetField(); | |
e1fe81b8 | 371 | AliGeomManager::LoadGeometry(); |
372 | if (!AliGeomManager::GetGeometry()) return; | |
a99c3449 | 373 | AliMUONRecoParam* recoParam = AliMUONCDB::LoadRecoParam(); |
374 | if (!recoParam) return; | |
e1fe81b8 | 375 | AliMUONESDInterface::ResetTracker(recoParam); |
a0bfad0e | 376 | |
f202486b | 377 | // get sigma cut from recoParam to associate clusters with TrackRefs in case the label are not used |
a99c3449 | 378 | Double_t sigmaCut = (recoParam->ImproveTracks()) ? recoParam->GetSigmaCutForImprovement() : recoParam->GetSigmaCutForTracking(); |
f202486b | 379 | // compute the mask of requested stations from recoParam |
380 | UInt_t requestedStationMask = 0; | |
381 | for (Int_t i = 0; i < 5; i++) if (recoParam->RequestStation(i)) requestedStationMask |= ( 1 << i ); | |
382 | // get from recoParam whether a track need 2 chambers hit in the same station (4 or 5) or not to be reconstructible | |
383 | Bool_t request2ChInSameSt45 = !recoParam->MakeMoreTrackCandidates(); | |
48217459 | 384 | |
385 | Int_t nevents = rc.NumberOfEvents(); | |
b8dc484b | 386 | |
edcc5b56 | 387 | if (nevents < nEvent || nEvent < 0) nEvent = nevents; |
b8dc484b | 388 | |
389 | Int_t ievent; | |
390 | Int_t nReconstructibleTracks = 0; | |
391 | Int_t nReconstructedTracks = 0; | |
392 | Int_t nReconstructibleTracksCheck = 0; | |
f202486b | 393 | AliMUONTrackParam *trackParam; |
e1fe81b8 | 394 | Double_t x1,y1,z1,slopex1,slopey1,pX1,pY1,pZ1,p1,pT1,eta1,phi1; |
395 | Double_t x2,y2,z2,slopex2,slopey2,pX2,pY2,pZ2,p2,pT2,eta2,phi2; | |
248ee365 | 396 | Double_t dPhi; |
e1fe81b8 | 397 | Double_t xAbs,yAbs,dAbs,aAbs,aMCS,aMC; |
398 | Double_t xDCA,yDCA,dca,pU; | |
399 | Double_t aMCSMoy = 0., aMCS2Moy = 0., dMCSMoy = 0., dMCS2Moy = 0., adMCSMoy = 0.; | |
400 | Int_t nMCS = 0; | |
48217459 | 401 | |
c687aa97 | 402 | // ###################################### fill histograms ###################################### // |
48217459 | 403 | for (ievent=0; ievent<nEvent; ievent++) |
404 | { | |
c687aa97 | 405 | if ((ievent+1)%100 == 0) cout<<"\rEvent processing... "<<ievent+1<<flush; |
b8dc484b | 406 | |
a99c3449 | 407 | AliMUONVTrackStore* trackStore = rc.ReconstructedTracks(ievent, kFALSE); |
f202486b | 408 | AliMUONVTrackStore* trackRefStore = rc.ReconstructibleTracks(ievent, requestedStationMask, request2ChInSameSt45); |
b8dc484b | 409 | |
48217459 | 410 | hReconstructible->Fill(trackRefStore->GetSize()); |
411 | hReco->Fill(trackStore->GetSize()); | |
412 | ||
413 | nReconstructibleTracks += trackRefStore->GetSize(); | |
414 | nReconstructedTracks += trackStore->GetSize(); | |
9f164762 | 415 | |
416 | AliMUONVTriggerTrackStore* triggerTrackRefStore = rc.TriggerableTracks(ievent); | |
417 | AliMUONVTriggerTrackStore* triggerTrackStore = rc.TriggeredTracks(ievent); | |
418 | ||
419 | hTriggerable->Fill(triggerTrackRefStore->GetSize()); | |
420 | hTriggered->Fill(triggerTrackStore->GetSize()); | |
421 | ||
422 | // loop over trigger trackRef | |
423 | TIter nextTrig(triggerTrackRefStore->CreateIterator()); | |
424 | AliMUONTriggerTrack* triggerTrackRef; | |
425 | Int_t nTriggerMatches = 0; | |
426 | while ( ( triggerTrackRef = static_cast<AliMUONTriggerTrack*>(nextTrig()) ) ) | |
427 | { | |
428 | ||
429 | AliMUONTriggerTrack* triggerTrackMatched = 0x0; | |
430 | ||
431 | // loop over trackReco and look for compatible track | |
432 | TIter nextTrig2(triggerTrackStore->CreateIterator()); | |
433 | AliMUONTriggerTrack* triggerTrackReco; | |
434 | while ( ( triggerTrackReco = static_cast<AliMUONTriggerTrack*>(nextTrig2()) ) ) | |
435 | { | |
436 | ||
437 | // check if trackReco is compatible with trackRef | |
438 | if (triggerTrackReco->Match(*triggerTrackRef, sigmaCut)) { | |
439 | triggerTrackMatched = triggerTrackReco; | |
440 | nTriggerMatches++; | |
441 | break; | |
442 | } | |
443 | } | |
444 | ||
445 | if (triggerTrackMatched) { // tracking requirements verified, track is found | |
446 | hResidualTrigX11->Fill( triggerTrackMatched->GetX11() - triggerTrackRef->GetX11() ); | |
447 | hResidualTrigY11->Fill( triggerTrackMatched->GetY11() - triggerTrackRef->GetY11() ); | |
448 | hResidualTrigSlopeY->Fill( triggerTrackMatched->GetSlopeY() - triggerTrackRef->GetSlopeY() ); | |
449 | } | |
450 | } // loop on trigger track ref | |
451 | ||
452 | if ( nTriggerMatches != triggerTrackStore->GetSize() ) | |
453 | hTriggerableMatchFailed->Fill(triggerTrackRefStore->GetSize()); | |
48217459 | 454 | |
f202486b | 455 | // loop over trackRef |
48217459 | 456 | TIter next(trackRefStore->CreateIterator()); |
457 | AliMUONTrack* trackRef; | |
48217459 | 458 | while ( ( trackRef = static_cast<AliMUONTrack*>(next()) ) ) |
459 | { | |
48217459 | 460 | |
9f164762 | 461 | hTrackRefID->Fill(trackRef->GetUniqueID()); |
f202486b | 462 | |
463 | AliMUONTrack* trackMatched = 0x0; | |
464 | Int_t nMatchClusters = 0; | |
465 | ||
466 | // loop over trackReco and look for compatible track | |
48217459 | 467 | TIter next2(trackStore->CreateIterator()); |
468 | AliMUONTrack* trackReco; | |
48217459 | 469 | while ( ( trackReco = static_cast<AliMUONTrack*>(next2()) ) ) |
470 | { | |
f202486b | 471 | |
472 | // check if trackReco is compatible with trackRef | |
f202486b | 473 | if (trackReco->Match(*trackRef, sigmaCut, nMatchClusters)) { |
474 | trackMatched = trackReco; | |
f202486b | 475 | break; |
61fed964 | 476 | } |
f202486b | 477 | |
48217459 | 478 | } |
479 | ||
f202486b | 480 | if (trackMatched) { // tracking requirements verified, track is found |
48217459 | 481 | nReconstructibleTracksCheck++; |
f202486b | 482 | hNClusterComp->Fill(nMatchClusters); |
c687aa97 | 483 | |
484 | // compute track position at the end of the absorber | |
485 | AliMUONTrackParam trackParamAtAbsEnd(*((AliMUONTrackParam*)trackMatched->GetTrackParamAtCluster()->First())); | |
486 | AliMUONTrackExtrap::ExtrapToZ(&trackParamAtAbsEnd, AliMUONConstants::AbsZEnd()); | |
487 | xAbs = trackParamAtAbsEnd.GetNonBendingCoor(); | |
488 | yAbs = trackParamAtAbsEnd.GetBendingCoor(); | |
489 | dAbs = TMath::Sqrt(xAbs*xAbs + yAbs*yAbs); | |
490 | aAbs = TMath::ATan(-dAbs/AliMUONConstants::AbsZEnd()) * TMath::RadToDeg(); | |
e1fe81b8 | 491 | pX2 = trackParamAtAbsEnd.Px(); |
492 | pY2 = trackParamAtAbsEnd.Py(); | |
493 | pZ2 = trackParamAtAbsEnd.Pz(); | |
494 | pT2 = TMath::Sqrt(pX2*pX2 + pY2*pY2); | |
495 | aMCS = TMath::ATan(-pT2/pZ2) * TMath::RadToDeg(); | |
c687aa97 | 496 | |
48217459 | 497 | trackParam = trackRef->GetTrackParamAtVertex(); |
498 | x1 = trackParam->GetNonBendingCoor(); | |
499 | y1 = trackParam->GetBendingCoor(); | |
500 | z1 = trackParam->GetZ(); | |
e1fe81b8 | 501 | slopex1 = trackParam->GetNonBendingSlope(); |
502 | slopey1 = trackParam->GetBendingSlope(); | |
48217459 | 503 | pX1 = trackParam->Px(); |
504 | pY1 = trackParam->Py(); | |
505 | pZ1 = trackParam->Pz(); | |
506 | p1 = trackParam->P(); | |
f202486b | 507 | pT1 = TMath::Sqrt(pX1*pX1 + pY1*pY1); |
c687aa97 | 508 | aMC = TMath::ATan(-pT1/pZ1) * TMath::RadToDeg(); |
e1fe81b8 | 509 | eta1 = TMath::Log(TMath::Tan(0.5*TMath::ATan(-pT1/pZ1))); |
510 | phi1 = TMath::Pi()+TMath::ATan2(-pY1, -pX1); | |
c687aa97 | 511 | |
f202486b | 512 | trackParam = trackMatched->GetTrackParamAtVertex(); |
48217459 | 513 | x2 = trackParam->GetNonBendingCoor(); |
514 | y2 = trackParam->GetBendingCoor(); | |
515 | z2 = trackParam->GetZ(); | |
e1fe81b8 | 516 | slopex2 = trackParam->GetNonBendingSlope(); |
517 | slopey2 = trackParam->GetBendingSlope(); | |
48217459 | 518 | pX2 = trackParam->Px(); |
519 | pY2 = trackParam->Py(); | |
520 | pZ2 = trackParam->Pz(); | |
521 | p2 = trackParam->P(); | |
f202486b | 522 | pT2 = TMath::Sqrt(pX2*pX2 + pY2*pY2); |
e1fe81b8 | 523 | eta2 = TMath::Log(TMath::Tan(0.5*TMath::ATan(-pT2/pZ2))); |
524 | phi2 = TMath::Pi()+TMath::ATan2(-pY2, -pX2); | |
48217459 | 525 | |
248ee365 | 526 | dPhi = phi2-phi1; |
527 | if (dPhi < -TMath::Pi()) dPhi += 2.*TMath::Pi(); | |
528 | else if (dPhi > TMath::Pi()) dPhi -= 2.*TMath::Pi(); | |
529 | ||
e1fe81b8 | 530 | AliMUONTrackParam trackParamAtDCA(*((AliMUONTrackParam*) trackMatched->GetTrackParamAtCluster()->First())); |
531 | pU = trackParamAtDCA.P(); | |
532 | AliMUONTrackExtrap::ExtrapToVertexWithoutBranson(&trackParamAtDCA, z2); | |
533 | xDCA = trackParamAtDCA.GetNonBendingCoor(); | |
534 | yDCA = trackParamAtDCA.GetBendingCoor(); | |
535 | dca = TMath::Sqrt(xDCA*xDCA + yDCA*yDCA); | |
536 | ||
48217459 | 537 | hResMomVertex->Fill(p2-p1); |
e1fe81b8 | 538 | hResSlopeXVertex->Fill(slopex2-slopex1); |
539 | hResSlopeYVertex->Fill(slopey2-slopey1); | |
540 | hPDCA->Fill(0.5*(p2+pU)*dca); | |
541 | hResEtaVertex->Fill(eta2-eta1); | |
248ee365 | 542 | hResPhiVertex->Fill(dPhi); |
e1fe81b8 | 543 | if (aMC >= aAbsLimits[0] && aMC <= aAbsLimits[1]) { |
544 | hResMomVertexVsMom->Fill(p1,p2-p1); | |
545 | hResSlopeXVertexVsMom->Fill(p1,slopex2-slopex1); | |
546 | hResSlopeYVertexVsMom->Fill(p1,slopey2-slopey1); | |
547 | hResEtaVertexVsMom->Fill(p1,eta2-eta1); | |
248ee365 | 548 | hResPhiVertexVsMom->Fill(p1,dPhi); |
e1fe81b8 | 549 | } |
c687aa97 | 550 | hResMomVertexVsAngleVsMom->Fill(p1,aAbs,p2-p1); |
e1fe81b8 | 551 | if (aAbs > 2. && aAbs < 3.) { |
552 | hResMomVertexVsMom_2_3_Deg->Fill(p1,p2-p1); | |
553 | hPDCAVsMom_2_3_Deg->Fill(p1,0.5*(p2+pU)*dca); | |
554 | hPMCSAngVsMom_2_3_Deg->Fill(p1,0.5*(p2+pU)*(aMCS-aMC)*TMath::DegToRad()); | |
555 | } | |
556 | else if (aAbs >= 3. && aAbs < 10.) { | |
557 | hResMomVertexVsMom_3_10_Deg->Fill(p1,p2-p1); | |
558 | hPDCAVsMom_3_10_Deg->Fill(p1,0.5*(p2+pU)*dca); | |
559 | hPMCSAngVsMom_3_10_Deg->Fill(p1,0.5*(p2+pU)*(aMCS-aMC)*TMath::DegToRad()); | |
560 | aMCSMoy += 0.5*(p2+pU)*(aMCS-aMC)*TMath::DegToRad(); | |
561 | aMCS2Moy += (0.5*(p2+pU)*(aMCS-aMC)*TMath::DegToRad()) * (0.5*(p2+pU)*(aMCS-aMC)*TMath::DegToRad()); | |
562 | dMCSMoy += 0.5*(p2+pU)*(dAbs-pT1/pZ1*AliMUONConstants::AbsZEnd()); | |
563 | dMCS2Moy += (0.5*(p2+pU)*(dAbs-pT1/pZ1*AliMUONConstants::AbsZEnd())) * (0.5*(p2+pU)*(dAbs-pT1/pZ1*AliMUONConstants::AbsZEnd())); | |
564 | adMCSMoy += (0.5*(p2+pU)*(aMCS-aMC)*TMath::DegToRad()) * (0.5*(p2+pU)*(dAbs-pT1/pZ1*AliMUONConstants::AbsZEnd())); | |
565 | nMCS++; | |
566 | } | |
c687aa97 | 567 | if (aMC < 2.) { |
568 | hResMomVertexVsMom_0_2_DegMC->Fill(p1,p2-p1); | |
569 | hResMomVertexVsPosAbsEnd_0_2_DegMC->Fill(dAbs,p2-p1); | |
e1fe81b8 | 570 | hResSlopeXVertexVsPosAbsEnd_0_2_DegMC->Fill(dAbs,slopex2-slopex1); |
571 | hResSlopeYVertexVsPosAbsEnd_0_2_DegMC->Fill(dAbs,slopey2-slopey1); | |
572 | hPDCAVsPosAbsEnd_0_2_DegMC->Fill(dAbs,0.5*(p2+pU)*dca); | |
573 | hResEtaVertexVsPosAbsEnd_0_2_DegMC->Fill(dAbs,eta2-eta1); | |
248ee365 | 574 | hResPhiVertexVsPosAbsEnd_0_2_DegMC->Fill(dAbs,dPhi); |
e1fe81b8 | 575 | } |
576 | else if (aMC >= 2. && aMC < 3) { | |
577 | hResMomVertexVsPosAbsEnd_2_3_DegMC->Fill(dAbs,p2-p1); | |
578 | hResSlopeXVertexVsPosAbsEnd_2_3_DegMC->Fill(dAbs,slopex2-slopex1); | |
579 | hResSlopeYVertexVsPosAbsEnd_2_3_DegMC->Fill(dAbs,slopey2-slopey1); | |
580 | hPDCAVsPosAbsEnd_2_3_DegMC->Fill(dAbs,0.5*(p2+pU)*dca); | |
581 | hResEtaVertexVsPosAbsEnd_2_3_DegMC->Fill(dAbs,eta2-eta1); | |
248ee365 | 582 | hResPhiVertexVsPosAbsEnd_2_3_DegMC->Fill(dAbs,dPhi); |
e1fe81b8 | 583 | } |
584 | else if (aMC >= 3. && aMC < 10.) { | |
585 | hResMomVertexVsPosAbsEnd_3_10_DegMC->Fill(dAbs,p2-p1); | |
586 | hResSlopeXVertexVsPosAbsEnd_3_10_DegMC->Fill(dAbs,slopex2-slopex1); | |
587 | hResSlopeYVertexVsPosAbsEnd_3_10_DegMC->Fill(dAbs,slopey2-slopey1); | |
588 | hPDCAVsPosAbsEnd_3_10_DegMC->Fill(dAbs,0.5*(p2+pU)*dca); | |
589 | hResEtaVertexVsPosAbsEnd_3_10_DegMC->Fill(dAbs,eta2-eta1); | |
248ee365 | 590 | hResPhiVertexVsPosAbsEnd_3_10_DegMC->Fill(dAbs,dPhi); |
c687aa97 | 591 | } |
c687aa97 | 592 | hResMomVertexVsAngle->Fill(aAbs,p2-p1); |
e1fe81b8 | 593 | hResSlopeXVertexVsAngle->Fill(aAbs,slopex2-slopex1); |
594 | hResSlopeYVertexVsAngle->Fill(aAbs,slopey2-slopey1); | |
595 | hPDCAVsAngle->Fill(aAbs,0.5*(p2+pU)*dca); | |
596 | hResEtaVertexVsAngle->Fill(aAbs,eta2-eta1); | |
248ee365 | 597 | hResPhiVertexVsAngle->Fill(aAbs,dPhi); |
c687aa97 | 598 | hResMomVertexVsMCAngle->Fill(aMC,p2-p1); |
e1fe81b8 | 599 | hResSlopeXVertexVsMCAngle->Fill(aMC,slopex2-slopex1); |
600 | hResSlopeYVertexVsMCAngle->Fill(aMC,slopey2-slopey1); | |
601 | hPDCAVsMCAngle->Fill(aMC,0.5*(p2+pU)*dca); | |
602 | hResEtaVertexVsMCAngle->Fill(aMC,eta2-eta1); | |
248ee365 | 603 | hResPhiVertexVsMCAngle->Fill(aMC,dPhi); |
f202486b | 604 | |
96ebe67e | 605 | trackParam = (AliMUONTrackParam*) trackRef->GetTrackParamAtCluster()->First(); |
48217459 | 606 | x1 = trackParam->GetNonBendingCoor(); |
607 | y1 = trackParam->GetBendingCoor(); | |
608 | z1 = trackParam->GetZ(); | |
e1fe81b8 | 609 | slopex1 = trackParam->GetNonBendingSlope(); |
610 | slopey1 = trackParam->GetBendingSlope(); | |
48217459 | 611 | pX1 = trackParam->Px(); |
612 | pY1 = trackParam->Py(); | |
613 | pZ1 = trackParam->Pz(); | |
614 | p1 = trackParam->P(); | |
f202486b | 615 | pT1 = TMath::Sqrt(pX1*pX1 + pY1*pY1); |
616 | ||
f202486b | 617 | trackParam = (AliMUONTrackParam*) trackMatched->GetTrackParamAtCluster()->First(); |
48217459 | 618 | x2 = trackParam->GetNonBendingCoor(); |
619 | y2 = trackParam->GetBendingCoor(); | |
620 | z2 = trackParam->GetZ(); | |
e1fe81b8 | 621 | slopex2 = trackParam->GetNonBendingSlope(); |
622 | slopey2 = trackParam->GetBendingSlope(); | |
48217459 | 623 | pX2 = trackParam->Px(); |
624 | pY2 = trackParam->Py(); | |
625 | pZ2 = trackParam->Pz(); | |
626 | p2 = trackParam->P(); | |
f202486b | 627 | pT2 = TMath::Sqrt(pX2*pX2 + pY2*pY2); |
48217459 | 628 | |
96ebe67e | 629 | hResMomFirstCluster->Fill(p2-p1); |
f202486b | 630 | hResMomFirstClusterVsMom->Fill(p1,p2-p1); |
631 | ||
e1fe81b8 | 632 | hResSlopeXFirstCluster->Fill(slopex2-slopex1); |
633 | hResSlopeYFirstCluster->Fill(slopey2-slopey1); | |
634 | hResSlopeXFirstClusterVsMom->Fill(p1,slopex2-slopex1); | |
635 | hResSlopeYFirstClusterVsMom->Fill(p1,slopey2-slopey1); | |
636 | ||
f202486b | 637 | // Fill residuals |
638 | // Loop over clusters of first track | |
639 | AliMUONTrackParam* trackParamAtCluster1 = (AliMUONTrackParam*) trackMatched->GetTrackParamAtCluster()->First(); | |
640 | while (trackParamAtCluster1) { | |
641 | AliMUONVCluster* cluster1 = trackParamAtCluster1->GetClusterPtr(); | |
642 | AliMUONTrackParam* trackParamAtCluster2 = (AliMUONTrackParam*) trackRef->GetTrackParamAtCluster()->First(); | |
643 | while (trackParamAtCluster2) { | |
644 | AliMUONVCluster* cluster2 = trackParamAtCluster2->GetClusterPtr(); | |
645 | if (cluster1->GetDetElemId() == cluster2->GetDetElemId()) { | |
646 | hResidualXInCh[cluster1->GetChamberId()]->Fill(cluster1->GetX() - cluster2->GetX()); | |
647 | hResidualYInCh[cluster1->GetChamberId()]->Fill(cluster1->GetY() - cluster2->GetY()); | |
648 | break; | |
649 | } | |
650 | trackParamAtCluster2 = (AliMUONTrackParam*) trackRef->GetTrackParamAtCluster()->After(trackParamAtCluster2); | |
651 | } | |
652 | trackParamAtCluster1 = (AliMUONTrackParam*) trackMatched->GetTrackParamAtCluster()->After(trackParamAtCluster1); | |
653 | } | |
654 | ||
b8dc484b | 655 | } |
f202486b | 656 | |
b8dc484b | 657 | } // end loop track ref. |
b8dc484b | 658 | |
48217459 | 659 | } // end loop on event |
c687aa97 | 660 | cout<<"\rEvent processing... "<<nevents<<" done"<<endl; |
48217459 | 661 | |
c687aa97 | 662 | // ###################################### compute stuff ###################################### // |
e1fe81b8 | 663 | cout<<"\nWhen not specified, resolution at vertex is computed for "; |
664 | if (absorberRegion == 1) cout<<"tracks in the absorber region [2,3] deg."<<endl; | |
665 | else if (absorberRegion == 2) cout<<"tracks in the absorber region [3,10] deg."<<endl; | |
666 | else cout<<"all tracks"<<endl; | |
667 | ||
c687aa97 | 668 | // compute momentum resolution at vertex versus p |
e1fe81b8 | 669 | TF1 *f2 = new TF1("f2",langaufun,deltaPAtVtxEdges[0],deltaPAtVtxEdges[1],4); |
c687aa97 | 670 | Int_t rebinFactorX = TMath::Max(hResMomVertexVsMom->GetNbinsX()/pNBins, 1); |
671 | for (Int_t i = rebinFactorX; i <= hResMomVertexVsMom->GetNbinsX(); i+=rebinFactorX) { | |
672 | cout<<"\rFitting momentum residuals at vertex... "<<i/rebinFactorX<<"/"<<pNBins<<flush; | |
673 | TH1D *tmp = hResMomVertexVsMom->ProjectionY("tmp",i-rebinFactorX+1,i,"e"); | |
c687aa97 | 674 | f2->SetParameters(0.2,0.,(Double_t)tmp->GetEntries(),1.); |
675 | tmp->Fit("f2","WWNQ"); | |
676 | Double_t fwhm = f2->GetParameter(0); | |
677 | Double_t sigma = f2->GetParameter(3); | |
678 | Double_t sigmaP = TMath::Sqrt(sigma*sigma + fwhm*fwhm/(8.*log(2.))); | |
679 | Int_t rebin = TMath::Max(Int_t(0.5*sigmaP/tmp->GetBinWidth(1)),1); | |
680 | while (deltaPAtVtxNBins%rebin!=0) rebin--; | |
681 | tmp->Rebin(rebin); | |
682 | tmp->Fit("f2","NQ"); | |
683 | fwhm = f2->GetParameter(0); | |
684 | sigma = f2->GetParameter(3); | |
685 | sigmaP = TMath::Sqrt(sigma*sigma + fwhm*fwhm/(8.*log(2.))); | |
686 | Double_t fwhmErr = f2->GetParError(0); | |
687 | Double_t sigmaErr = f2->GetParError(3); | |
688 | Double_t sigmaPErr = TMath::Sqrt(sigma*sigma*sigmaErr*sigmaErr + fwhm*fwhm*fwhmErr*fwhmErr/(64.*log(2.)*log(2.))) / sigmaP; | |
e1fe81b8 | 689 | hResMomVertexVsMom->GetXaxis()->SetRange(i-rebinFactorX+1,i); |
248ee365 | 690 | Double_t p = (tmp->GetEntries() > 0) ? hResMomVertexVsMom->GetMean() : 0.5 * (hResMomVertexVsMom->GetBinLowEdge(i-rebinFactorX+1) + hResMomVertexVsMom->GetBinLowEdge(i+1)); |
e1fe81b8 | 691 | hResMomVertexVsMom->GetXaxis()->SetRange(); |
692 | Double_t pErr[2] = {p-hResMomVertexVsMom->GetBinLowEdge(i-rebinFactorX+1), hResMomVertexVsMom->GetBinLowEdge(i+1)-p}; | |
693 | gMeanResMomVertexVsMom->SetPoint(i/rebinFactorX-1, p, tmp->GetMean()); | |
694 | gMeanResMomVertexVsMom->SetPointError(i/rebinFactorX-1, pErr[0], pErr[1], tmp->GetMeanError(), tmp->GetMeanError()); | |
695 | gMostProbResMomVertexVsMom->SetPoint(i/rebinFactorX-1, p, -f2->GetParameter(1)); | |
696 | gMostProbResMomVertexVsMom->SetPointError(i/rebinFactorX-1, pErr[0], pErr[1], f2->GetParError(1), f2->GetParError(1)); | |
697 | gSigmaResMomVertexVsMom->SetPoint(i/rebinFactorX-1, p, 100.*sigmaP/p); | |
698 | gSigmaResMomVertexVsMom->SetPointError(i/rebinFactorX-1, pErr[0], pErr[1], 100.*sigmaPErr/p, 100.*sigmaPErr/p); | |
f202486b | 699 | delete tmp; |
700 | } | |
c687aa97 | 701 | cout<<"\rFitting momentum residuals at vertex... "<<pNBins<<"/"<<pNBins<<endl; |
702 | ||
e1fe81b8 | 703 | // compute momentum relative resolution at first cluster versus p |
704 | FitGausResVsMom(hResMomFirstClusterVsMom, pNBins, 0., 1., "momentum residuals at first cluster", gMeanResMomFirstClusterVsMom, gSigmaResMomFirstClusterVsMom); | |
c687aa97 | 705 | rebinFactorX = TMath::Max(hResMomFirstClusterVsMom->GetNbinsX()/pNBins, 1); |
706 | for (Int_t i = rebinFactorX; i <= hResMomFirstClusterVsMom->GetNbinsX(); i+=rebinFactorX) { | |
e1fe81b8 | 707 | Double_t x,y; |
708 | gSigmaResMomFirstClusterVsMom->GetPoint(i/rebinFactorX-1, x, y); | |
709 | gSigmaResMomFirstClusterVsMom->SetPoint(i/rebinFactorX-1, x, 100.*y/x); | |
710 | gSigmaResMomFirstClusterVsMom->SetPointEYlow(i/rebinFactorX-1, 100.*gSigmaResMomFirstClusterVsMom->GetErrorYlow(i/rebinFactorX-1)/x); | |
711 | gSigmaResMomFirstClusterVsMom->SetPointEYhigh(i/rebinFactorX-1, 100.*gSigmaResMomFirstClusterVsMom->GetErrorYhigh(i/rebinFactorX-1)/x); | |
f202486b | 712 | } |
713 | ||
e1fe81b8 | 714 | // compute slopeX resolution at vertex versus p |
715 | FitGausResVsMom(hResSlopeXVertexVsMom, pNBins, 0., 2.e-3, "slopeX residuals at vertex", gMeanResSlopeXVertexVsMom, gSigmaResSlopeXVertexVsMom); | |
716 | ||
717 | // compute slopeY resolution at vertex versus p | |
718 | FitGausResVsMom(hResSlopeYVertexVsMom, pNBins, 0., 2.e-3, "slopeY residuals at vertex", gMeanResSlopeYVertexVsMom, gSigmaResSlopeYVertexVsMom); | |
719 | ||
720 | // compute slopeX resolution at first cluster versus p | |
721 | FitGausResVsMom(hResSlopeXFirstClusterVsMom, pNBins, 0., 3.e-4, "slopeX residuals at first cluster", gMeanResSlopeXFirstClusterVsMom, gSigmaResSlopeXFirstClusterVsMom); | |
722 | ||
723 | // compute slopeY resolution at first cluster versus p | |
724 | FitGausResVsMom(hResSlopeYFirstClusterVsMom, pNBins, 0., 2.e-4, "slopeY residuals at first cluster", gMeanResSlopeYFirstClusterVsMom, gSigmaResSlopeYFirstClusterVsMom); | |
725 | ||
726 | // compute p*DCA resolution in the region [2,3] deg at absorber end | |
c231afb9 | 727 | FitPDCAVsMom(hPDCAVsMom_2_3_Deg, pNBins, "p*DCA (tracks in [2,3] deg.)", gMeanPDCAVsMom_2_3_Deg, gSigmaPDCAVsMom_2_3_Deg); |
e1fe81b8 | 728 | |
729 | // compute p*DCA resolution in the region [3,10] deg at absorber end | |
c231afb9 | 730 | FitPDCAVsMom(hPDCAVsMom_3_10_Deg, pNBins, "p*DCA (tracks in [3,10] deg.)", gMeanPDCAVsMom_3_10_Deg, gSigmaPDCAVsMom_3_10_Deg); |
e1fe81b8 | 731 | |
732 | // compute MCS angular dispersion in the region [2,3] deg at absorber end | |
733 | 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); | |
734 | ||
735 | // compute MCS angular dispersion in the region [3,10] deg at absorber end | |
736 | 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); | |
737 | ||
738 | // compute eta resolution at vertex versus p | |
739 | FitGausResVsMom(hResEtaVertexVsMom, pNBins, 0., 0.1, "eta residuals at vertex", gMeanResEtaVertexVsMom, gSigmaResEtaVertexVsMom); | |
740 | ||
741 | // compute phi resolution at vertex versus p | |
742 | FitGausResVsMom(hResPhiVertexVsMom, pNBins, 0., 0.01, "phi residuals at vertex", gMeanResPhiVertexVsMom, gSigmaResPhiVertexVsMom); | |
743 | ||
744 | // compute cluster-track residual mean and dispersion | |
f202486b | 745 | for (Int_t i = 0; i < AliMUONConstants::NTrackingCh(); i++) { |
746 | hResidualXInCh[i]->GetXaxis()->SetRangeUser(-3.*hResidualXInCh[i]->GetRMS(), 3.*hResidualXInCh[i]->GetRMS()); | |
747 | gResidualXPerChMean->SetPoint(i, i+1, hResidualXInCh[i]->GetMean()); | |
748 | gResidualXPerChMean->SetPointError(i, 0., hResidualXInCh[i]->GetMeanError()); | |
749 | gResidualXPerChSigma->SetPoint(i, i+1, hResidualXInCh[i]->GetRMS()); | |
750 | gResidualXPerChSigma->SetPointError(i, 0., hResidualXInCh[i]->GetRMSError()); | |
751 | hResidualXInCh[i]->GetXaxis()->SetRange(0,0); | |
752 | hResidualYInCh[i]->GetXaxis()->SetRangeUser(-3.*hResidualYInCh[i]->GetRMS(), 3.*hResidualYInCh[i]->GetRMS()); | |
753 | gResidualYPerChMean->SetPoint(i, i+1, hResidualYInCh[i]->GetMean()); | |
754 | gResidualYPerChMean->SetPointError(i, 0., hResidualYInCh[i]->GetMeanError()); | |
755 | gResidualYPerChSigma->SetPoint(i, i+1, hResidualYInCh[i]->GetRMS()); | |
756 | gResidualYPerChSigma->SetPointError(i, 0., hResidualYInCh[i]->GetRMSError()); | |
757 | hResidualYInCh[i]->GetXaxis()->SetRange(0,0); | |
758 | } | |
759 | ||
c687aa97 | 760 | // ###################################### display histograms ###################################### // |
e1fe81b8 | 761 | // diplay momentum residuals |
762 | TCanvas* cResMom = DrawVsAng("cResMom", "momentum residual at vertex in 3 angular regions", hResMomVertex, hResMomVertexVsAngle); | |
763 | TCanvas* cResMomMC = DrawVsAng("cResMomMC", "momentum residual at vertex in 3 MC angular regions", hResMomVertex, hResMomVertexVsMCAngle); | |
764 | TCanvas* cResMomVsPos = DrawVsPos("cResMomVsPos", "momentum residual at vertex versus position at absorber end in 3 MC angular regions", | |
765 | hResMomVertexVsPosAbsEnd_0_2_DegMC, hResMomVertexVsPosAbsEnd_2_3_DegMC, hResMomVertexVsPosAbsEnd_3_10_DegMC); | |
766 | TCanvas* cResMom_2_3_Deg = DrawResMomVsMom("cResMom_2_3_Deg", "momentum residual for tracks between 2 and 3 degrees", | |
767 | hResMomVertexVsMom_2_3_Deg, 10, f2, "momentum residuals at vertex (tracks in [2,3] deg.)"); | |
768 | TCanvas* cResMom_3_10_Deg = DrawResMomVsMom("cResMom_3_10_Deg", "momentum residual for tracks between 3 and 10 degrees", | |
769 | hResMomVertexVsMom_3_10_Deg, 10, f2, "momentum residuals at vertex (tracks in [3,10] deg.)"); | |
770 | TCanvas* cResMom_0_2_DegMC = DrawResMomVsMom("cResMom_0_2_DegMC", "momentum residuals for tracks with MC angle < 2 degrees", hResMomVertexVsMom_0_2_DegMC, 5); | |
771 | ||
772 | // diplay slopeX residuals | |
773 | TCanvas* cResSlopeX = DrawVsAng("cResSlopeX", "slope_{X} residual at vertex in 3 angular regions", hResSlopeXVertex, hResSlopeXVertexVsAngle); | |
774 | TCanvas* cResSlopeXMC = DrawVsAng("cResSlopeXMC", "slope_{X} residual at vertex in 3 MC angular regions", hResSlopeXVertex, hResSlopeXVertexVsMCAngle); | |
775 | TCanvas* cResSlopeXVsPos = DrawVsPos("cResSlopeXVsPos", "slope_{X} residual at vertex versus position at absorber end in 3 MC angular regions", | |
776 | hResSlopeXVertexVsPosAbsEnd_0_2_DegMC, hResSlopeXVertexVsPosAbsEnd_2_3_DegMC, hResSlopeXVertexVsPosAbsEnd_3_10_DegMC); | |
777 | ||
778 | // diplay slopeY residuals | |
779 | TCanvas* cResSlopeY = DrawVsAng("cResSlopeY", "slope_{Y} residual at vertex in 3 angular regions", hResSlopeYVertex, hResSlopeYVertexVsAngle); | |
780 | TCanvas* cResSlopeYMC = DrawVsAng("cResSlopeYMC", "slope_{Y} residual at vertex in 3 MC angular regions", hResSlopeYVertex, hResSlopeYVertexVsMCAngle); | |
781 | TCanvas* cResSlopeYVsPos = DrawVsPos("cResSlopeYVsPos", "slope_{Y} residual at vertex versus position at absorber end in 3 MC angular regions", | |
782 | hResSlopeYVertexVsPosAbsEnd_0_2_DegMC, hResSlopeYVertexVsPosAbsEnd_2_3_DegMC, hResSlopeYVertexVsPosAbsEnd_3_10_DegMC); | |
783 | ||
784 | // diplay P*DCA | |
785 | TCanvas* cPDCA = DrawVsAng("cPDCA", "p #times DCA in 3 angular regions", hPDCA, hPDCAVsAngle); | |
786 | TCanvas* cPDCAMC = DrawVsAng("cPDCAMC", "p #times DCA in 3 MC angular regions", hPDCA, hPDCAVsMCAngle); | |
787 | TCanvas* cPDCAVsPos = DrawVsPos("cPDCAVsPos", "p #times DCA versus position at absorber end in 3 MC angular regions", | |
788 | hPDCAVsPosAbsEnd_0_2_DegMC, hPDCAVsPosAbsEnd_2_3_DegMC, hPDCAVsPosAbsEnd_3_10_DegMC); | |
789 | ||
790 | // diplay eta residuals | |
791 | TCanvas* cResEta = DrawVsAng("cResEta", "eta residual at vertex in 3 angular regions", hResEtaVertex, hResEtaVertexVsAngle); | |
792 | TCanvas* cResEtaMC = DrawVsAng("cResEtaMC", "eta residual at vertex in 3 MC angular regions", hResEtaVertex, hResEtaVertexVsMCAngle); | |
793 | TCanvas* cResEtaVsPos = DrawVsPos("cResEtaVsPos", "eta residual at vertex versus position at absorber end in 3 MC angular regions", | |
794 | hResEtaVertexVsPosAbsEnd_0_2_DegMC, hResEtaVertexVsPosAbsEnd_2_3_DegMC, hResEtaVertexVsPosAbsEnd_3_10_DegMC); | |
795 | ||
796 | // diplay phi residuals | |
797 | TCanvas* cResPhi = DrawVsAng("cResPhi", "phi residual at vertex in 3 angular regions", hResPhiVertex, hResPhiVertexVsAngle); | |
798 | TCanvas* cResPhiMC = DrawVsAng("cResPhiMC", "phi residual at vertex in 3 MC angular regions", hResPhiVertex, hResPhiVertexVsMCAngle); | |
799 | TCanvas* cResPhiVsPos = DrawVsPos("cResPhiVsPos", "phi residual at vertex versus position at absorber end in 3 MC angular regions", | |
800 | hResPhiVertexVsPosAbsEnd_0_2_DegMC, hResPhiVertexVsPosAbsEnd_2_3_DegMC, hResPhiVertexVsPosAbsEnd_3_10_DegMC); | |
c687aa97 | 801 | |
802 | // ###################################### save histogram ###################################### // | |
b8dc484b | 803 | histoFile->Write(); |
c687aa97 | 804 | |
805 | histoFile->cd("momentumAtVertex"); | |
806 | gMeanResMomVertexVsMom->Write(); | |
807 | gMostProbResMomVertexVsMom->Write(); | |
808 | gSigmaResMomVertexVsMom->Write(); | |
e1fe81b8 | 809 | cResMom->Write(); |
810 | cResMomMC->Write(); | |
811 | cResMomVsPos->Write(); | |
812 | cResMom_2_3_Deg->Write(); | |
813 | cResMom_3_10_Deg->Write(); | |
814 | cResMom_0_2_DegMC->Write(); | |
815 | ||
816 | histoFile->cd("slopesAtVertex"); | |
817 | gMeanResSlopeXVertexVsMom->Write(); | |
818 | gMeanResSlopeYVertexVsMom->Write(); | |
819 | gSigmaResSlopeXVertexVsMom->Write(); | |
820 | gSigmaResSlopeYVertexVsMom->Write(); | |
821 | cResSlopeX->Write(); | |
822 | cResSlopeY->Write(); | |
823 | cResSlopeXMC->Write(); | |
824 | cResSlopeYMC->Write(); | |
825 | cResSlopeXVsPos->Write(); | |
826 | cResSlopeYVsPos->Write(); | |
827 | ||
828 | histoFile->cd("DCA"); | |
c231afb9 | 829 | gMeanPDCAVsMom_2_3_Deg->Write(); |
e1fe81b8 | 830 | gSigmaPDCAVsMom_2_3_Deg->Write(); |
c231afb9 | 831 | gMeanPDCAVsMom_3_10_Deg->Write(); |
e1fe81b8 | 832 | gSigmaPDCAVsMom_3_10_Deg->Write(); |
833 | gMeanPMCSAngVsMom_2_3_Deg->Write(); | |
834 | gSigmaPMCSAngVsMom_2_3_Deg->Write(); | |
835 | gMeanPMCSAngVsMom_3_10_Deg->Write(); | |
836 | gSigmaPMCSAngVsMom_3_10_Deg->Write(); | |
837 | cPDCA->Write(); | |
838 | cPDCAMC->Write(); | |
839 | cPDCAVsPos->Write(); | |
840 | ||
841 | histoFile->cd("etaAtVertex"); | |
842 | gMeanResEtaVertexVsMom->Write(); | |
843 | gSigmaResEtaVertexVsMom->Write(); | |
844 | cResEta->Write(); | |
845 | cResEtaMC->Write(); | |
846 | cResEtaVsPos->Write(); | |
847 | ||
848 | histoFile->cd("phiAtVertex"); | |
849 | gMeanResPhiVertexVsMom->Write(); | |
850 | gSigmaResPhiVertexVsMom->Write(); | |
851 | cResPhi->Write(); | |
852 | cResPhiMC->Write(); | |
853 | cResPhiVsPos->Write(); | |
c687aa97 | 854 | |
855 | histoFile->cd("momentumAtFirstCluster"); | |
856 | gMeanResMomFirstClusterVsMom->Write(); | |
857 | gSigmaResMomFirstClusterVsMom->Write(); | |
858 | ||
e1fe81b8 | 859 | histoFile->cd("slopesAtFirstCluster"); |
860 | gMeanResSlopeXFirstClusterVsMom->Write(); | |
861 | gMeanResSlopeYFirstClusterVsMom->Write(); | |
862 | gSigmaResSlopeXFirstClusterVsMom->Write(); | |
863 | gSigmaResSlopeYFirstClusterVsMom->Write(); | |
864 | ||
c687aa97 | 865 | histoFile->cd("clusters"); |
f202486b | 866 | gResidualXPerChMean->Write(); |
867 | gResidualXPerChSigma->Write(); | |
868 | gResidualYPerChMean->Write(); | |
869 | gResidualYPerChSigma->Write(); | |
c687aa97 | 870 | |
b8dc484b | 871 | histoFile->Close(); |
c687aa97 | 872 | |
e1fe81b8 | 873 | // ###################################### clean memory ###################################### // |
874 | delete cResMom; | |
875 | delete cResMomMC; | |
876 | delete cResMomVsPos; | |
877 | delete cResMom_2_3_Deg; | |
878 | delete cResMom_3_10_Deg; | |
879 | delete cResMom_0_2_DegMC; | |
880 | delete cResSlopeX; | |
881 | delete cResSlopeY; | |
882 | delete cResSlopeXMC; | |
883 | delete cResSlopeYMC; | |
884 | delete cResSlopeXVsPos; | |
885 | delete cResSlopeYVsPos; | |
886 | delete cPDCA; | |
887 | delete cPDCAMC; | |
888 | delete cPDCAVsPos; | |
889 | delete cResEta; | |
890 | delete cResEtaMC; | |
891 | delete cResEtaVsPos; | |
892 | delete cResPhi; | |
893 | delete cResPhiMC; | |
894 | delete cResPhiVsPos; | |
c687aa97 | 895 | |
e1fe81b8 | 896 | // ###################################### print statistics ###################################### // |
897 | printf("\n"); | |
898 | printf("nb of reconstructible tracks: %d \n", nReconstructibleTracks); | |
899 | printf("nb of reconstructed tracks: %d \n", nReconstructedTracks); | |
900 | printf("nb of reconstructible tracks which are reconstructed: %d \n", nReconstructibleTracksCheck); | |
901 | ||
902 | aMCSMoy /= (Double_t) nMCS; | |
903 | aMCS2Moy /= (Double_t) nMCS; | |
904 | dMCSMoy /= (Double_t) nMCS; | |
905 | dMCS2Moy /= (Double_t) nMCS; | |
906 | adMCSMoy /= (Double_t) nMCS; | |
907 | Double_t sigma2_ThetaMCS = aMCS2Moy - aMCSMoy*aMCSMoy; | |
908 | Double_t sigma2_PosMCS = dMCS2Moy - dMCSMoy*dMCSMoy; | |
909 | Double_t cov_ThetaPosMCS = - (adMCSMoy - aMCSMoy*dMCSMoy); | |
910 | printf("\nmultiple scattering of tracks between 3 and 10 deg. at absorber end:\n"); | |
911 | printf(" sigma_ThetaMCS = %f\n", TMath::Sqrt(sigma2_ThetaMCS)); | |
912 | printf(" sigma_PosMCS = %f\n", TMath::Sqrt(sigma2_PosMCS)); | |
913 | printf(" cov_ThetaPosMCS = %f\n", cov_ThetaPosMCS); | |
914 | printf(" --> sigma_DCA = %f\n", TMath::Sqrt(AliMUONConstants::AbsZEnd()*AliMUONConstants::AbsZEnd()*sigma2_ThetaMCS | |
915 | - 2.*AliMUONConstants::AbsZEnd()*cov_ThetaPosMCS + sigma2_PosMCS)); | |
916 | printf("\n"); | |
c687aa97 | 917 | } |
918 | ||
919 | //------------------------------------------------------------------------------------ | |
920 | Double_t langaufun(Double_t *x, Double_t *par) { | |
921 | ||
922 | //Fit parameters: | |
923 | //par[0]=Width (scale) parameter of Landau density | |
924 | //par[1]=Most Probable (MP, location) parameter of Landau density | |
925 | //par[2]=Total area (integral -inf to inf, normalization constant) | |
926 | //par[3]=Width (sigma) of convoluted Gaussian function | |
927 | // | |
928 | //In the Landau distribution (represented by the CERNLIB approximation), | |
929 | //the maximum is located at x=-0.22278298 with the location parameter=0. | |
930 | //This shift is corrected within this function, so that the actual | |
931 | //maximum is identical to the MP parameter. | |
932 | ||
933 | // Numeric constants | |
934 | Double_t invsq2pi = 0.3989422804014; // (2 pi)^(-1/2) | |
935 | Double_t mpshift = -0.22278298; // Landau maximum location | |
936 | ||
937 | // Control constants | |
938 | Double_t np = 100.0; // number of convolution steps | |
939 | Double_t sc = 5.0; // convolution extends to +-sc Gaussian sigmas | |
940 | ||
941 | // Variables | |
942 | Double_t xx; | |
943 | Double_t mpc; | |
944 | Double_t fland; | |
945 | Double_t sum = 0.0; | |
946 | Double_t xlow,xupp; | |
947 | Double_t step; | |
948 | Double_t i; | |
949 | ||
950 | ||
951 | // MP shift correction | |
952 | mpc = par[1] - mpshift * par[0]; | |
953 | ||
954 | // Range of convolution integral | |
955 | xlow = x[0] - sc * par[3]; | |
956 | xupp = x[0] + sc * par[3]; | |
957 | ||
958 | step = (xupp-xlow) / np; | |
959 | ||
960 | // Convolution integral of Landau and Gaussian by sum | |
961 | for(i=1.0; i<=np/2; i++) { | |
962 | xx = xlow + (i-.5) * step; | |
963 | //change x -> -x because the tail of the Landau is at the left here... | |
964 | fland = TMath::Landau(-xx,mpc,par[0]) / par[0]; | |
965 | sum += fland * TMath::Gaus(x[0],xx,par[3]); | |
966 | ||
967 | //change x -> -x because the tail of the Landau is at the left here... | |
968 | xx = xupp - (i-.5) * step; | |
969 | fland = TMath::Landau(-xx,mpc,par[0]) / par[0]; | |
970 | sum += fland * TMath::Gaus(x[0],xx,par[3]); | |
971 | } | |
972 | ||
973 | return (par[2] * step * sum * invsq2pi / par[3]); | |
b8dc484b | 974 | } |
975 | ||
e1fe81b8 | 976 | //------------------------------------------------------------------------------------ |
977 | void FitGausResVsMom(TH2* h, Int_t nBins, const Double_t mean0, const Double_t sigma0, | |
978 | const char* fitting, TGraphAsymmErrors* gMean, TGraphAsymmErrors* gSigma) | |
979 | { | |
980 | /// generic function to fit residuals versus momentum with a gaussian | |
981 | static TF1* fGaus = 0x0; | |
982 | if (!fGaus) fGaus = new TF1("fGaus","gaus"); | |
983 | ||
984 | Int_t rebinFactorX = TMath::Max(h->GetNbinsX()/nBins, 1); | |
985 | for (Int_t i = rebinFactorX; i <= h->GetNbinsX(); i+=rebinFactorX) { | |
986 | cout<<Form("\rFitting %s... %d/%d",fitting,i/rebinFactorX,nBins)<<flush; | |
987 | TH1D *tmp = h->ProjectionY("tmp",i-rebinFactorX+1,i,"e"); | |
988 | fGaus->SetParameters(tmp->GetEntries(), mean0, sigma0); | |
989 | tmp->Fit("fGaus","WWNQ"); | |
990 | Int_t rebin = TMath::Max(Int_t(0.5*fGaus->GetParameter(2)/tmp->GetBinWidth(1)),1); | |
991 | while (tmp->GetNbinsX()%rebin!=0) rebin--; | |
992 | tmp->Rebin(rebin); | |
993 | tmp->Fit("fGaus","NQ"); | |
994 | h->GetXaxis()->SetRange(i-rebinFactorX+1,i); | |
248ee365 | 995 | Double_t p = (tmp->GetEntries() > 0) ? h->GetMean() : 0.5 * (h->GetBinLowEdge(i-rebinFactorX+1) + h->GetBinLowEdge(i+1)); |
e1fe81b8 | 996 | h->GetXaxis()->SetRange(); |
997 | Double_t pErr[2] = {p-h->GetBinLowEdge(i-rebinFactorX+1), h->GetBinLowEdge(i+1)-p}; | |
998 | gMean->SetPoint(i/rebinFactorX-1, p, fGaus->GetParameter(1)); | |
999 | gMean->SetPointError(i/rebinFactorX-1, pErr[0], pErr[1], fGaus->GetParError(1), fGaus->GetParError(1)); | |
1000 | gSigma->SetPoint(i/rebinFactorX-1, p, fGaus->GetParameter(2)); | |
1001 | gSigma->SetPointError(i/rebinFactorX-1, pErr[0], pErr[1], fGaus->GetParError(2), fGaus->GetParError(2)); | |
1002 | delete tmp; | |
1003 | } | |
1004 | cout<<Form("\rFitting %s... %d/%d",fitting,nBins,nBins)<<endl; | |
1005 | } | |
1006 | ||
1007 | //------------------------------------------------------------------------------------ | |
c231afb9 | 1008 | void FitPDCAVsMom(TH2* h, Int_t nBins, const char* fitting, TGraphAsymmErrors* gMean, TGraphAsymmErrors* gSigma) |
e1fe81b8 | 1009 | { |
1010 | /// generic function to fit p*DCA distributions | |
1011 | static TF1* fPGaus = 0x0; | |
1012 | if (!fPGaus) fPGaus = new TF1("fPGaus","x*gaus"); | |
1013 | ||
1014 | Int_t rebinFactorX = TMath::Max(h->GetNbinsX()/nBins, 1); | |
1015 | for (Int_t i = rebinFactorX; i <= h->GetNbinsX(); i+=rebinFactorX) { | |
1016 | cout<<Form("\rFitting %s... %d/%d",fitting,i/rebinFactorX,nBins)<<flush; | |
1017 | TH1D *tmp = h->ProjectionY("tmp",i-rebinFactorX+1,i,"e"); | |
c231afb9 | 1018 | fPGaus->SetParameters(1.,0.,80.); |
1019 | Int_t rebin = 25.*(tmp->GetNbinsX()/(tmp->GetBinLowEdge(tmp->GetNbinsX()+1)-tmp->GetBinLowEdge(1))); | |
e1fe81b8 | 1020 | while (tmp->GetNbinsX()%rebin!=0) rebin--; |
1021 | tmp->Rebin(rebin); | |
1022 | tmp->Fit("fPGaus","NQ"); | |
1023 | h->GetXaxis()->SetRange(i-rebinFactorX+1,i); | |
248ee365 | 1024 | Double_t p = (tmp->GetEntries() > 0) ? h->GetMean() : 0.5 * (h->GetBinLowEdge(i-rebinFactorX+1) + h->GetBinLowEdge(i+1)); |
e1fe81b8 | 1025 | h->GetXaxis()->SetRange(); |
1026 | Double_t pErr[2] = {p-h->GetBinLowEdge(i-rebinFactorX+1), h->GetBinLowEdge(i+1)-p}; | |
c231afb9 | 1027 | gMean->SetPoint(i/rebinFactorX-1, p, fPGaus->GetParameter(1)); |
1028 | gMean->SetPointError(i/rebinFactorX-1, pErr[0], pErr[1], fPGaus->GetParError(1), fPGaus->GetParError(1)); | |
e1fe81b8 | 1029 | gSigma->SetPoint(i/rebinFactorX-1, p, fPGaus->GetParameter(2)); |
1030 | gSigma->SetPointError(i/rebinFactorX-1, pErr[0], pErr[1], fPGaus->GetParError(2), fPGaus->GetParError(2)); | |
1031 | delete tmp; | |
1032 | } | |
1033 | cout<<Form("\rFitting %s... %d/%d",fitting,nBins,nBins)<<endl; | |
1034 | } | |
1035 | ||
1036 | //------------------------------------------------------------------------------------ | |
1037 | TCanvas* DrawVsAng(const char* name, const char* title, TH1* h1, TH2* h2) | |
1038 | { | |
1039 | /// generic function to draw histograms versus absorber angular region | |
1040 | TCanvas* c = new TCanvas(name, title); | |
1041 | c->cd(); | |
1042 | h1->Draw(); | |
1043 | TH1D *proj1 = h2->ProjectionY(Form("%s_proj_0_2",h2->GetName()),1,2); | |
1044 | proj1->Draw("sames"); | |
1045 | proj1->SetLineColor(2); | |
1046 | TH1D *proj2 = h2->ProjectionY(Form("%s_proj_2_3",h2->GetName()),3,3); | |
1047 | proj2->Draw("sames"); | |
1048 | proj2->SetLineColor(4); | |
1049 | TH1D *proj3 = h2->ProjectionY(Form("%s__proj_3_10",h2->GetName()),4,10); | |
1050 | proj3->Draw("sames"); | |
1051 | proj3->SetLineColor(3); | |
1052 | return c; | |
1053 | } | |
1054 | ||
1055 | //------------------------------------------------------------------------------------ | |
1056 | TCanvas* DrawVsPos(const char* name, const char* title, TH2* h1, TH2* h2, TH2* h3) | |
1057 | { | |
1058 | /// generic function to draw histograms versus position at absorber end | |
1059 | TCanvas* c = new TCanvas(name, title); | |
1060 | c->cd(); | |
1061 | h1->Draw(); | |
1062 | h1->SetMarkerColor(2); | |
1063 | h2->Draw("sames"); | |
1064 | h2->SetMarkerColor(4); | |
1065 | h3->Draw("sames"); | |
1066 | h3->SetMarkerColor(3); | |
1067 | return c; | |
1068 | } | |
1069 | ||
1070 | //------------------------------------------------------------------------------------ | |
1071 | TCanvas* DrawResMomVsMom(const char* name, const char* title, TH2* h, Int_t nBins, TF1* f2, const char* fitting) | |
1072 | { | |
1073 | /// generic function to draw and eventually fit momentum residuals versus momentum | |
1074 | TLegend* l = new TLegend(0.15,0.25,0.3,0.85); | |
1075 | TCanvas* c = new TCanvas(name, title); | |
1076 | c->cd(); | |
1077 | TH1D* proj = 0x0; | |
1078 | h->Sumw2(); | |
1079 | Int_t rebinFactorX = TMath::Max(h->GetNbinsX()/nBins, 1); | |
1080 | for (Int_t i = rebinFactorX; i <= h->GetNbinsX(); i+=rebinFactorX) { | |
1081 | if (f2) cout<<Form("\rFitting %s... %d/%d",fitting,i/rebinFactorX,nBins)<<flush; | |
1082 | proj = h->ProjectionY(Form("%s_%d",h->GetName(),i/rebinFactorX),i-rebinFactorX+1,i); | |
1083 | if (proj->GetEntries() > 0) proj->Scale(1./proj->GetEntries()); | |
1084 | proj->Draw((i==rebinFactorX)?"hist":"histsames"); | |
1085 | proj->SetLineColor(i/rebinFactorX); | |
1086 | if (f2) { | |
1087 | f2->SetParameters(0.2,0.,1.,1.); | |
1088 | f2->SetLineColor(i/rebinFactorX); | |
1089 | proj->Fit("f2","WWNQ","sames"); | |
1090 | Double_t fwhm = f2->GetParameter(0); | |
1091 | Double_t sigma = f2->GetParameter(3); | |
1092 | Double_t sigmaP = TMath::Sqrt(sigma*sigma + fwhm*fwhm/(8.*log(2.))); | |
1093 | Int_t rebin = TMath::Max(Int_t(0.5*sigmaP/proj->GetBinWidth(1)),1); | |
1094 | while (proj->GetNbinsX()%rebin!=0) rebin--; | |
1095 | proj->Rebin(rebin); | |
1096 | proj->Scale(1./rebin); | |
1097 | proj->Fit("f2","Q","sames"); | |
1098 | } else proj->SetLineWidth(2); | |
1099 | Double_t p = 0.5 * (h->GetBinLowEdge(i-rebinFactorX+1) + h->GetBinLowEdge(i+1)); | |
1100 | l->AddEntry(proj,Form("%5.1f GeV",p)); | |
1101 | } | |
1102 | if (f2) cout<<Form("\rFitting %s... %d/%d",fitting,nBins,nBins)<<endl; | |
1103 | l->Draw("same"); | |
1104 | return c; | |
1105 | } | |
1106 |