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2 | /************************************************************************** | |
3 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * * | |
5 | * Author: The ALICE Off-line Project. * | |
6 | * Contributors are mentioned in the code where appropriate. * | |
7 | * * | |
8 | * Permission to use, copy, modify and distribute this software and its * | |
9 | * documentation strictly for non-commercial purposes is hereby granted * | |
10 | * without fee, provided that the above copyright notice appears in all * | |
11 | * copies and that both the copyright notice and this permission notice * | |
12 | * appear in the supporting documentation. The authors make no claims * | |
13 | * about the suitability of this software for any purpose. It is * | |
14 | * provided "as is" without express or implied warranty. * | |
15 | **************************************************************************/ | |
16 | ||
17 | //_________________________________________________________________________ | |
18 | // An analysis task to check the PHOS/EMCAL simulated trigger | |
19 | // | |
20 | //*-- Yves Schutz & Gustavo Conesa Balbastre | |
21 | ////////////////////////////////////////////////////////////////////////////// | |
22 | ||
23 | #include <TChain.h> | |
24 | #include <TFile.h> | |
25 | #include <TNtuple.h> | |
26 | #include <TVector3.h> | |
27 | ||
28 | #include "AliAnalysisManager.h" | |
29 | #include "AliMCEventHandler.h" | |
30 | #include "AliAnaCaloTriggerMC.h" | |
31 | #include "AliESDEvent.h" | |
32 | #include "AliESDCaloCluster.h" | |
33 | #include "AliLog.h" | |
34 | #include "AliStack.h" | |
35 | #include "TParticle.h" | |
36 | ||
37 | //______________________________________________________________________________ | |
38 | AliAnaCaloTriggerMC::AliAnaCaloTriggerMC() : | |
39 | fChain(0), | |
40 | fESD(0), | |
41 | fOutputContainer(0), | |
42 | fCalorimeter("PHOS"), | |
43 | fNtTrigger22(0), | |
44 | fNtTriggerNN(0) | |
45 | ||
46 | { | |
47 | // Default constructor. | |
48 | ||
49 | } | |
50 | //______________________________________________________________________________ | |
51 | AliAnaCaloTriggerMC::AliAnaCaloTriggerMC(const char *name) : | |
52 | AliAnalysisTask(name, "AnaCaloTriggerMC"), | |
53 | fChain(0), | |
54 | fESD(0), | |
55 | fOutputContainer(0), | |
56 | fCalorimeter("PHOS"), | |
57 | fNtTrigger22(0), | |
58 | fNtTriggerNN(0) | |
59 | ||
60 | { | |
61 | // Constructor. | |
62 | // Input slot #0 works with an Ntuple | |
63 | DefineInput(0, TChain::Class()); | |
64 | // Output slot #0 writes into a TH1 container | |
65 | DefineOutput(0, TObjArray::Class()) ; | |
66 | } | |
67 | //____________________________________________________________________________ | |
68 | AliAnaCaloTriggerMC::AliAnaCaloTriggerMC(const AliAnaCaloTriggerMC & ct) : | |
69 | fChain(ct.fChain), fESD(ct.fESD), | |
70 | fOutputContainer(ct.fOutputContainer), fCalorimeter(ct. fCalorimeter), | |
71 | fNtTrigger22(ct.fNtTrigger22), fNtTriggerNN(ct.fNtTriggerNN) | |
72 | { | |
73 | ||
74 | // cpy ctor | |
75 | SetName (ct.GetName()) ; | |
76 | SetTitle(ct.GetTitle()) ; | |
77 | ||
78 | } | |
79 | ||
80 | //_________________________________________________________________________ | |
81 | AliAnaCaloTriggerMC & AliAnaCaloTriggerMC::operator = (const AliAnaCaloTriggerMC & source) | |
82 | { | |
83 | // assignment operator | |
84 | ||
85 | if(&source == this) return *this; | |
86 | ||
87 | fChain = source.fChain ; | |
88 | fESD = source.fESD ; | |
89 | fOutputContainer = source.fOutputContainer ; | |
90 | fCalorimeter = source. fCalorimeter ; | |
91 | fNtTrigger22 = source.fNtTrigger22 ; | |
92 | fNtTriggerNN = source.fNtTriggerNN ; | |
93 | ||
94 | return *this; | |
95 | ||
96 | } | |
97 | ||
98 | //______________________________________________________________________________ | |
99 | AliAnaCaloTriggerMC::~AliAnaCaloTriggerMC() | |
100 | { | |
101 | // dtor | |
102 | fOutputContainer->Clear() ; | |
103 | delete fOutputContainer ; | |
104 | delete fNtTrigger22 ; | |
105 | delete fNtTriggerNN ; | |
106 | } | |
107 | ||
108 | ||
109 | //______________________________________________________________________________ | |
110 | void AliAnaCaloTriggerMC::ConnectInputData(const Option_t*) | |
111 | { | |
112 | // Initialisation of branch container and histograms | |
113 | ||
114 | AliInfo(Form("*** Initialization of %s", GetName())) ; | |
115 | ||
116 | // Get input data | |
117 | fChain = dynamic_cast<TChain *>(GetInputData(0)) ; | |
118 | if (!fChain) { | |
119 | AliError(Form("Input 0 for %s not found\n", GetName())); | |
120 | return ; | |
121 | } | |
122 | ||
123 | fESD = new AliESDEvent(); | |
124 | fESD->ReadFromTree(fChain); | |
125 | ||
126 | } | |
127 | ||
128 | //________________________________________________________________________ | |
129 | ||
130 | void AliAnaCaloTriggerMC::CreateOutputObjects() | |
131 | { | |
132 | ||
133 | // Create the output container | |
134 | OpenFile(0); | |
135 | ||
136 | // create histograms | |
137 | fNtTrigger22 = new TNtuple(fCalorimeter+"trigger22", "Trigger data 2x2 patch", "a22:a220:enMax:phEnMax:eta22:phi22:etaMax:phiMax:phEtaMax:phPhiMax"); | |
138 | fNtTriggerNN = new TNtuple(fCalorimeter+"triggerNN", "Trigger data NxN patch", "aNN:aNN0:enMax:phEnMax:etaNN:phiNN:etaMax:phiMax:phEtaMax:phPhiMax"); | |
139 | ||
140 | // create output container | |
141 | ||
142 | fOutputContainer = new TObjArray(2) ; | |
143 | fOutputContainer->SetName(GetName()) ; | |
144 | ||
145 | fOutputContainer->AddAt(fNtTrigger22, 0) ; | |
146 | fOutputContainer->AddAt(fNtTriggerNN, 1) ; | |
147 | ||
148 | } | |
149 | ||
150 | //______________________________________________________________________________ | |
151 | void AliAnaCaloTriggerMC::Exec(Option_t *) | |
152 | { | |
153 | ||
154 | // Processing of one event | |
155 | ||
156 | Long64_t entry = fChain->GetReadEntry() ; | |
157 | ||
158 | if (!fESD) { | |
159 | AliError("fESD is not connected to the input!") ; | |
160 | return ; | |
161 | } | |
162 | ||
163 | if ( !((entry-1)%100) ) | |
164 | AliInfo(Form("%s ----> Processing event # %lld", (dynamic_cast<TChain *>(fChain))->GetFile()->GetName(), entry)) ; | |
165 | ||
166 | //Get MC data | |
167 | AliStack* stack = 0x0; | |
168 | AliMCEventHandler* mctruth = (AliMCEventHandler*) | |
169 | ((AliAnalysisManager::GetAnalysisManager())->GetMCtruthEventHandler()); | |
170 | ||
171 | if(mctruth) | |
172 | stack = mctruth->Stack(); | |
173 | ||
174 | if (!stack) { | |
175 | AliError("Stack not found") ; | |
176 | return ; | |
177 | } | |
178 | ||
179 | // Get trigger information of fCalorimeter | |
180 | TArrayF * triggerAmplitudes = 0x0 ; | |
181 | TArrayF * triggerPosition = 0x0 ; | |
182 | Int_t numberOfCaloClusters = 0 ; | |
183 | ||
184 | if(fCalorimeter == "PHOS"){ | |
185 | triggerAmplitudes = fESD->GetPHOSTriggerAmplitudes(); | |
186 | triggerPosition = fESD->GetPHOSTriggerPosition(); | |
187 | } | |
188 | else if(fCalorimeter == "EMCAL"){ | |
189 | triggerAmplitudes = fESD->GetEMCALTriggerAmplitudes(); | |
190 | triggerPosition = fESD->GetEMCALTriggerPosition(); | |
191 | } | |
192 | ||
193 | if( triggerAmplitudes && triggerPosition ){ | |
194 | // trigger amplitudes | |
195 | const Float_t a22 = static_cast<Float_t>(triggerAmplitudes->At(0)) ; | |
196 | const Float_t a22O = static_cast<Float_t>(triggerAmplitudes->At(1)) ; | |
197 | const Float_t aNN = static_cast<Float_t>(triggerAmplitudes->At(2)) ; | |
198 | const Float_t aNNO = static_cast<Float_t>(triggerAmplitudes->At(3)) ; | |
199 | ||
200 | // trigger position | |
201 | const Float_t x22 = static_cast<Float_t>(triggerPosition->At(0)) ; | |
202 | const Float_t y22 = static_cast<Float_t>(triggerPosition->At(1)) ; | |
203 | const Float_t z22 = static_cast<Float_t>(triggerPosition->At(2)) ; | |
204 | const Float_t xNN = static_cast<Float_t>(triggerPosition->At(3)) ; | |
205 | const Float_t yNN = static_cast<Float_t>(triggerPosition->At(4)) ; | |
206 | const Float_t zNN = static_cast<Float_t>(triggerPosition->At(5)) ; | |
207 | ||
208 | Float_t enMax = 0. ; | |
209 | Float_t phEnMax = 0. ; | |
210 | Float_t etaMax = 0.5 ; | |
211 | Float_t phiMax = 0. ; | |
212 | Float_t phEtaMax = 0.5 ; | |
213 | Float_t phPhiMax = 0. ; | |
214 | ||
215 | TVector3 vpos22(x22, y22, z22) ; | |
216 | TVector3 vposNN(xNN, yNN, zNN) ; | |
217 | Float_t eta22 = vpos22.Eta() ; | |
218 | Float_t phi22 = vpos22.Phi() * TMath::RadToDeg() + 360. ; | |
219 | Float_t etaNN = vposNN.Eta() ; | |
220 | Float_t phiNN = vposNN.Phi() * TMath::RadToDeg() + 360. ; | |
221 | ||
222 | Int_t icaloCluster ; | |
223 | ||
224 | // loop over the Calorimeters Clusters | |
225 | Float_t cluEnergy = 0; | |
226 | Int_t labelmax = -5; | |
227 | for(icaloCluster = 0 ; icaloCluster < numberOfCaloClusters ; icaloCluster++) { | |
228 | ||
229 | AliESDCaloCluster * cluster = fESD->GetCaloCluster(icaloCluster) ; | |
230 | ||
231 | if (cluster && ( (fCalorimeter == "PHOS" && cluster->IsPHOS()) || | |
232 | (fCalorimeter == "EMCAL" && cluster->IsEMCAL()))) { | |
233 | ||
234 | cluEnergy = cluster->E() ; | |
235 | Float_t pos[3] ; | |
236 | TVector3 vpos ; | |
237 | ||
238 | cluster->GetPosition( pos ) ; | |
239 | ||
240 | if ( cluEnergy > enMax) { | |
241 | enMax = cluEnergy ; | |
242 | vpos.SetXYZ(pos[0], pos[1], pos[2]) ; | |
243 | etaMax = vpos.Eta() ; | |
244 | phiMax = vpos.Phi() ; | |
245 | labelmax = cluster->GetLabel(); | |
246 | } | |
247 | ||
248 | Float_t * pid = cluster->GetPid() ; | |
249 | ||
250 | if(pid[AliPID::kPhoton] > 0.9) { | |
251 | if ( cluEnergy > phEnMax) { | |
252 | phEnMax = cluEnergy ; | |
253 | vpos.SetXYZ(pos[0], pos[1], pos[2]) ; | |
254 | phEtaMax = vpos.Eta() ; | |
255 | phPhiMax = vpos.Phi() ; | |
256 | } | |
257 | } | |
258 | }//if cluster | |
259 | }//CaloCluster loop | |
260 | ||
261 | if(labelmax < stack->GetNtrack() && labelmax >= 0 ){ | |
262 | TParticle * particle = stack->Particle(labelmax); | |
263 | Float_t ptgen = particle->Energy(); | |
264 | fNtTrigger22->Fill(a22, a22O, ptgen, enMax, phEnMax, eta22, phi22, etaMax, phiMax * TMath::RadToDeg() + 360., phEtaMax, phPhiMax * TMath::RadToDeg() + 360.); | |
265 | fNtTriggerNN->Fill(aNN, aNNO, ptgen, enMax, phEnMax, etaNN, phiNN, etaMax, phiMax * TMath::RadToDeg() + 360., phEtaMax, phPhiMax * TMath::RadToDeg() + 360.); | |
266 | } | |
267 | else AliDebug(1, Form("Wrong label %d, ntrack %d, Emax %f ",labelmax, stack->GetNtrack(), phEnMax)); | |
268 | }//If trigger arrays filled | |
269 | ||
270 | PostData(0, fOutputContainer); | |
271 | ||
272 | } | |
273 | ||
274 | ||
275 | //______________________________________________________________________________ | |
276 | void AliAnaCaloTriggerMC::Terminate(Option_t *) | |
277 | { | |
278 | // Processing when the event loop is ended | |
279 | ||
280 | } |