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1 | /************************************************************************** | |
2 | * Copyright(c) 1998-2002, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | //=============================================================== | |
17 | // To be modified for hadron correction using particle ID and track merging | |
18 | // Author : magali.estienne@subatech.in2p3.fr | |
19 | //=============================================================== | |
20 | // Author : Mark Horner (LBL/UCT) | |
21 | ||
22 | // --- Standard library --- | |
23 | #include "Riostream.h" | |
24 | #include "TMath.h" | |
25 | ||
26 | // --- AliRoot header files --- | |
27 | #include "AliAODTrack.h" | |
28 | #include "AliJetDummyGeo.h" | |
29 | #include "AliJetHadronCorrectionv1.h" | |
30 | ||
31 | static Double_t etaGrid[HCPARAMETERS]={ 0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.67}; | |
32 | ||
33 | ClassImp(AliJetHadronCorrectionv1) | |
34 | ||
35 | Double_t AliJetHadronCorrectionv1::fgParLookup[HCPARAMETERS][HCPARAMETERSETS] = | |
36 | { | |
37 | ||
38 | {7.52624e-2 , 9.80119e-2 , 1.29086e-2}, | |
39 | {-2.07449e-2 , 2.22951e-2 , 8.31971e-2}, | |
40 | {-3.64861e-4 , -3.65680e-03 , -3.07148e-02}, | |
41 | {5.35252e-3 , 5.12234e-03 , 2.25559e-02}, | |
42 | {1.27106e-1 , 1.25248e-01 , 1.06352e-01}, | |
43 | {-6.72909e-2 , 9.78677e-01 , -1.35909e-01}, | |
44 | {-3.80660e-5 , -2.77522e-05 , -2.05218e-05}, | |
45 | {1.54855e-7 , 1.00604e-07 , 1.02481e-07} | |
46 | }; | |
47 | ||
48 | AliJetHadronCorrectionv1* AliJetHadronCorrectionv1::fgHadrCorr = 0; | |
49 | ||
50 | AliJetHadronCorrectionv1::AliJetHadronCorrectionv1(const char *name,const char *title) | |
51 | :AliJetHadronCorrection(name, title), | |
52 | fSamplingFraction(0) | |
53 | { | |
54 | fgHadrCorr = this; | |
55 | for (Int_t i = 0; i < 8; i++) fPar[i] = 0.; | |
56 | } | |
57 | ||
58 | AliJetHadronCorrectionv1* | |
59 | AliJetHadronCorrectionv1::Instance() | |
60 | { | |
61 | // return pointer to global instance. Instantiate if needed | |
62 | if (! fgHadrCorr) fgHadrCorr = new AliJetHadronCorrectionv1(); | |
63 | return fgHadrCorr; | |
64 | } | |
65 | ||
66 | void AliJetHadronCorrectionv1::SetGeometry2(const AliJetDummyGeo *geometry) | |
67 | { | |
68 | // Initialise EMCAL geometry | |
69 | if (!geometry) | |
70 | { | |
71 | SetParameters(); | |
72 | // commented out since geometry is 0x0 after null check | |
73 | // fSamplingFraction = geometry->GetSampling(); | |
74 | }else | |
75 | { | |
76 | SetParameters(geometry->GetName()); | |
77 | fSamplingFraction = geometry->GetSampling(); | |
78 | } | |
79 | return; | |
80 | } | |
81 | ||
82 | /* | |
83 | ########################################################################### | |
84 | ########################################################################### | |
85 | ||
86 | This will have to be modified with the inclusion of the new EMCAL geometry | |
87 | That means I guess a new study of the hadron correction... | |
88 | ||
89 | Geometry : SHISH... | |
90 | ||
91 | ########################################################################### | |
92 | ########################################################################### | |
93 | */ | |
94 | ||
95 | void AliJetHadronCorrectionv1::SetGeometry(TString /*name*/,Double_t fs) | |
96 | { | |
97 | // Initialise EMCAL geometry | |
98 | fSamplingFraction = fs; | |
99 | ||
100 | /* | |
101 | if ( name == "" || | |
102 | name == "EMCAL_5655_21" || | |
103 | name == "EMCALArch1a" || | |
104 | name == "EMCALArch1aN" || | |
105 | name == "G56_2_55_19" || | |
106 | name == "G56_2_55_19_104_14" ) | |
107 | { // set parameters to this hadron correction | |
108 | cout<<"HC parameters!"<<endl; | |
109 | for (Int_t i=0;i<6;i++) | |
110 | { | |
111 | fPar[i] = fgParLookup[i][0]; | |
112 | cout <<fPar[i]<<endl; | |
113 | } | |
114 | }else if( name == "EMCAL_6564_21" || | |
115 | name == "G65_2_64_19" ) | |
116 | { | |
117 | cout<<"HC parameters!"<<endl; | |
118 | for (Int_t i=0;i<6;i++) | |
119 | { | |
120 | fPar[i] = fgParLookup[i][1]; | |
121 | cout <<fPar[i]<<endl; | |
122 | } | |
123 | }else | |
124 | { | |
125 | printf("Geometry not defined in hadron correction\n"); | |
126 | } | |
127 | */ | |
128 | ||
129 | } | |
130 | ||
131 | // Double_t AliJetHadronCorrectionv1::GetEnergy(Double_t pmom, Double_t eta, Int_t /*gid*/) | |
132 | Double_t AliJetHadronCorrectionv1::GetEnergy(Double_t pmom, Double_t eta, Int_t /*gid*/) | |
133 | { | |
134 | // Return parametrised energy response | |
135 | Double_t etai = TMath::Abs(eta); | |
136 | ||
137 | if(etai < etaGrid[1]) { | |
138 | for (Int_t i=0;i<8;i++) | |
139 | { | |
140 | fPar[i] = fgParLookup[i][1]; | |
141 | // cout << "fPar[" << i << "]: " << fPar[i] << endl; | |
142 | } | |
143 | } else if(etai >= etaGrid[1] && etai <= etaGrid[HCPARAMETERS-2]) { | |
144 | for (Int_t i=0;i<8;i++) | |
145 | { | |
146 | fPar[i] = fgParLookup[i][0]; | |
147 | // cout << "fPar[" << i << "]: " << fPar[i] << endl; | |
148 | } | |
149 | } else { | |
150 | for (Int_t i=0;i<8;i++) | |
151 | { | |
152 | fPar[i] = fgParLookup[i][2]; | |
153 | // cout << "fPar[" << i << "]: " << fPar[i] << endl; | |
154 | } | |
155 | ||
156 | } | |
157 | ||
158 | Double_t value = fPar[5]*pow(etai,3) + | |
159 | fPar[0]*pow(etai,2) + | |
160 | fPar[1]*etai + | |
161 | fPar[2]*etai*pmom + | |
162 | fPar[3]*pmom + | |
163 | fPar[4] + | |
164 | fPar[6]*pow(pmom,2) + | |
165 | fPar[7]*pow(pmom,3); | |
166 | ||
167 | return fSamplingFraction*value; | |
168 | ||
169 | } | |
170 | ||
171 | // void AliJetHadronCorrectionv1::TrackPositionEMCal(const AliAODTrack* track,Double_t &eta, Double_t &phi) | |
172 | // { // Temporarily commented - will be updated removing the AliAODpid dependence | |
173 | // // Return track position on EMCal | |
174 | // AliAODPid* pid = (AliAODPid*) track->GetDetPid(); | |
175 | // | |
176 | // if(pid) { | |
177 | // Double_t emcpos[3]; | |
178 | // pid->GetEMCALPosition(emcpos); | |
179 | // TVector3 tpos(emcpos[0],emcpos[1],emcpos[2]); | |
180 | // | |
181 | // eta = tpos.Eta(); | |
182 | // phi = tpos.Phi(); | |
183 | // | |
184 | // } | |
185 | // | |
186 | // } |