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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" | |
4b707925 | 30 | #include "AliMCEvent.h" |
884e9012 | 31 | #include "AliAnaCaloTriggerMC.h" |
32 | #include "AliESDEvent.h" | |
33 | #include "AliESDCaloCluster.h" | |
34 | #include "AliLog.h" | |
35 | #include "AliStack.h" | |
36 | #include "TParticle.h" | |
37 | ||
38 | //______________________________________________________________________________ | |
39 | AliAnaCaloTriggerMC::AliAnaCaloTriggerMC() : | |
40 | fChain(0), | |
41 | fESD(0), | |
42 | fOutputContainer(0), | |
43 | fCalorimeter("PHOS"), | |
44 | fNtTrigger22(0), | |
45 | fNtTriggerNN(0) | |
46 | ||
47 | { | |
48 | // Default constructor. | |
49 | ||
50 | } | |
51 | //______________________________________________________________________________ | |
52 | AliAnaCaloTriggerMC::AliAnaCaloTriggerMC(const char *name) : | |
53 | AliAnalysisTask(name, "AnaCaloTriggerMC"), | |
54 | fChain(0), | |
55 | fESD(0), | |
56 | fOutputContainer(0), | |
57 | fCalorimeter("PHOS"), | |
58 | fNtTrigger22(0), | |
59 | fNtTriggerNN(0) | |
60 | ||
61 | { | |
62 | // Constructor. | |
63 | // Input slot #0 works with an Ntuple | |
64 | DefineInput(0, TChain::Class()); | |
65 | // Output slot #0 writes into a TH1 container | |
66 | DefineOutput(0, TObjArray::Class()) ; | |
67 | } | |
68 | //____________________________________________________________________________ | |
69 | AliAnaCaloTriggerMC::AliAnaCaloTriggerMC(const AliAnaCaloTriggerMC & ct) : | |
70 | fChain(ct.fChain), fESD(ct.fESD), | |
71 | fOutputContainer(ct.fOutputContainer), fCalorimeter(ct. fCalorimeter), | |
72 | fNtTrigger22(ct.fNtTrigger22), fNtTriggerNN(ct.fNtTriggerNN) | |
73 | { | |
74 | ||
75 | // cpy ctor | |
76 | SetName (ct.GetName()) ; | |
77 | SetTitle(ct.GetTitle()) ; | |
78 | ||
79 | } | |
80 | ||
81 | //_________________________________________________________________________ | |
82 | AliAnaCaloTriggerMC & AliAnaCaloTriggerMC::operator = (const AliAnaCaloTriggerMC & source) | |
83 | { | |
84 | // assignment operator | |
85 | ||
86 | if(&source == this) return *this; | |
87 | ||
88 | fChain = source.fChain ; | |
89 | fESD = source.fESD ; | |
90 | fOutputContainer = source.fOutputContainer ; | |
91 | fCalorimeter = source. fCalorimeter ; | |
92 | fNtTrigger22 = source.fNtTrigger22 ; | |
93 | fNtTriggerNN = source.fNtTriggerNN ; | |
94 | ||
95 | return *this; | |
96 | ||
97 | } | |
98 | ||
99 | //______________________________________________________________________________ | |
100 | AliAnaCaloTriggerMC::~AliAnaCaloTriggerMC() | |
101 | { | |
102 | // dtor | |
103 | fOutputContainer->Clear() ; | |
104 | delete fOutputContainer ; | |
105 | delete fNtTrigger22 ; | |
106 | delete fNtTriggerNN ; | |
107 | } | |
108 | ||
109 | ||
110 | //______________________________________________________________________________ | |
111 | void AliAnaCaloTriggerMC::ConnectInputData(const Option_t*) | |
112 | { | |
113 | // Initialisation of branch container and histograms | |
114 | ||
115 | AliInfo(Form("*** Initialization of %s", GetName())) ; | |
116 | ||
117 | // Get input data | |
118 | fChain = dynamic_cast<TChain *>(GetInputData(0)) ; | |
119 | if (!fChain) { | |
120 | AliError(Form("Input 0 for %s not found\n", GetName())); | |
121 | return ; | |
122 | } | |
123 | ||
124 | fESD = new AliESDEvent(); | |
125 | fESD->ReadFromTree(fChain); | |
126 | ||
127 | } | |
128 | ||
129 | //________________________________________________________________________ | |
130 | ||
131 | void AliAnaCaloTriggerMC::CreateOutputObjects() | |
132 | { | |
133 | ||
134 | // Create the output container | |
135 | OpenFile(0); | |
136 | ||
137 | // create histograms | |
138 | fNtTrigger22 = new TNtuple(fCalorimeter+"trigger22", "Trigger data 2x2 patch", "a22:a220:enMax:phEnMax:eta22:phi22:etaMax:phiMax:phEtaMax:phPhiMax"); | |
139 | fNtTriggerNN = new TNtuple(fCalorimeter+"triggerNN", "Trigger data NxN patch", "aNN:aNN0:enMax:phEnMax:etaNN:phiNN:etaMax:phiMax:phEtaMax:phPhiMax"); | |
140 | ||
141 | // create output container | |
142 | ||
143 | fOutputContainer = new TObjArray(2) ; | |
144 | fOutputContainer->SetName(GetName()) ; | |
145 | ||
146 | fOutputContainer->AddAt(fNtTrigger22, 0) ; | |
147 | fOutputContainer->AddAt(fNtTriggerNN, 1) ; | |
148 | ||
149 | } | |
150 | ||
151 | //______________________________________________________________________________ | |
152 | void AliAnaCaloTriggerMC::Exec(Option_t *) | |
153 | { | |
154 | ||
155 | // Processing of one event | |
156 | ||
157 | Long64_t entry = fChain->GetReadEntry() ; | |
158 | ||
159 | if (!fESD) { | |
160 | AliError("fESD is not connected to the input!") ; | |
161 | return ; | |
162 | } | |
163 | ||
164 | if ( !((entry-1)%100) ) | |
165 | AliInfo(Form("%s ----> Processing event # %lld", (dynamic_cast<TChain *>(fChain))->GetFile()->GetName(), entry)) ; | |
166 | ||
167 | //Get MC data | |
168 | AliStack* stack = 0x0; | |
169 | AliMCEventHandler* mctruth = (AliMCEventHandler*) | |
170 | ((AliAnalysisManager::GetAnalysisManager())->GetMCtruthEventHandler()); | |
171 | ||
172 | if(mctruth) | |
4b707925 | 173 | stack = mctruth->MCEvent()->Stack(); |
884e9012 | 174 | |
175 | if (!stack) { | |
176 | AliError("Stack not found") ; | |
177 | return ; | |
178 | } | |
179 | ||
180 | // Get trigger information of fCalorimeter | |
181 | TArrayF * triggerAmplitudes = 0x0 ; | |
182 | TArrayF * triggerPosition = 0x0 ; | |
183 | Int_t numberOfCaloClusters = 0 ; | |
184 | ||
185 | if(fCalorimeter == "PHOS"){ | |
186 | triggerAmplitudes = fESD->GetPHOSTriggerAmplitudes(); | |
187 | triggerPosition = fESD->GetPHOSTriggerPosition(); | |
188 | } | |
189 | else if(fCalorimeter == "EMCAL"){ | |
190 | triggerAmplitudes = fESD->GetEMCALTriggerAmplitudes(); | |
191 | triggerPosition = fESD->GetEMCALTriggerPosition(); | |
192 | } | |
193 | ||
194 | if( triggerAmplitudes && triggerPosition ){ | |
195 | // trigger amplitudes | |
196 | const Float_t a22 = static_cast<Float_t>(triggerAmplitudes->At(0)) ; | |
197 | const Float_t a22O = static_cast<Float_t>(triggerAmplitudes->At(1)) ; | |
198 | const Float_t aNN = static_cast<Float_t>(triggerAmplitudes->At(2)) ; | |
199 | const Float_t aNNO = static_cast<Float_t>(triggerAmplitudes->At(3)) ; | |
200 | ||
201 | // trigger position | |
202 | const Float_t x22 = static_cast<Float_t>(triggerPosition->At(0)) ; | |
203 | const Float_t y22 = static_cast<Float_t>(triggerPosition->At(1)) ; | |
204 | const Float_t z22 = static_cast<Float_t>(triggerPosition->At(2)) ; | |
205 | const Float_t xNN = static_cast<Float_t>(triggerPosition->At(3)) ; | |
206 | const Float_t yNN = static_cast<Float_t>(triggerPosition->At(4)) ; | |
207 | const Float_t zNN = static_cast<Float_t>(triggerPosition->At(5)) ; | |
208 | ||
209 | Float_t enMax = 0. ; | |
210 | Float_t phEnMax = 0. ; | |
211 | Float_t etaMax = 0.5 ; | |
212 | Float_t phiMax = 0. ; | |
213 | Float_t phEtaMax = 0.5 ; | |
214 | Float_t phPhiMax = 0. ; | |
215 | ||
216 | TVector3 vpos22(x22, y22, z22) ; | |
217 | TVector3 vposNN(xNN, yNN, zNN) ; | |
218 | Float_t eta22 = vpos22.Eta() ; | |
219 | Float_t phi22 = vpos22.Phi() * TMath::RadToDeg() + 360. ; | |
220 | Float_t etaNN = vposNN.Eta() ; | |
221 | Float_t phiNN = vposNN.Phi() * TMath::RadToDeg() + 360. ; | |
222 | ||
223 | Int_t icaloCluster ; | |
224 | ||
225 | // loop over the Calorimeters Clusters | |
226 | Float_t cluEnergy = 0; | |
227 | Int_t labelmax = -5; | |
228 | for(icaloCluster = 0 ; icaloCluster < numberOfCaloClusters ; icaloCluster++) { | |
229 | ||
230 | AliESDCaloCluster * cluster = fESD->GetCaloCluster(icaloCluster) ; | |
231 | ||
232 | if (cluster && ( (fCalorimeter == "PHOS" && cluster->IsPHOS()) || | |
233 | (fCalorimeter == "EMCAL" && cluster->IsEMCAL()))) { | |
234 | ||
235 | cluEnergy = cluster->E() ; | |
236 | Float_t pos[3] ; | |
237 | TVector3 vpos ; | |
238 | ||
239 | cluster->GetPosition( pos ) ; | |
240 | ||
241 | if ( cluEnergy > enMax) { | |
242 | enMax = cluEnergy ; | |
243 | vpos.SetXYZ(pos[0], pos[1], pos[2]) ; | |
244 | etaMax = vpos.Eta() ; | |
245 | phiMax = vpos.Phi() ; | |
246 | labelmax = cluster->GetLabel(); | |
247 | } | |
248 | ||
4b707925 | 249 | Double_t * pid = cluster->GetPid() ; |
884e9012 | 250 | |
251 | if(pid[AliPID::kPhoton] > 0.9) { | |
252 | if ( cluEnergy > phEnMax) { | |
253 | phEnMax = cluEnergy ; | |
254 | vpos.SetXYZ(pos[0], pos[1], pos[2]) ; | |
255 | phEtaMax = vpos.Eta() ; | |
256 | phPhiMax = vpos.Phi() ; | |
257 | } | |
258 | } | |
259 | }//if cluster | |
260 | }//CaloCluster loop | |
261 | ||
262 | if(labelmax < stack->GetNtrack() && labelmax >= 0 ){ | |
263 | TParticle * particle = stack->Particle(labelmax); | |
264 | Float_t ptgen = particle->Energy(); | |
265 | fNtTrigger22->Fill(a22, a22O, ptgen, enMax, phEnMax, eta22, phi22, etaMax, phiMax * TMath::RadToDeg() + 360., phEtaMax, phPhiMax * TMath::RadToDeg() + 360.); | |
266 | fNtTriggerNN->Fill(aNN, aNNO, ptgen, enMax, phEnMax, etaNN, phiNN, etaMax, phiMax * TMath::RadToDeg() + 360., phEtaMax, phPhiMax * TMath::RadToDeg() + 360.); | |
267 | } | |
268 | else AliDebug(1, Form("Wrong label %d, ntrack %d, Emax %f ",labelmax, stack->GetNtrack(), phEnMax)); | |
269 | }//If trigger arrays filled | |
270 | ||
271 | PostData(0, fOutputContainer); | |
272 | ||
273 | } | |
274 | ||
275 | ||
276 | //______________________________________________________________________________ | |
277 | void AliAnaCaloTriggerMC::Terminate(Option_t *) | |
278 | { | |
279 | // Processing when the event loop is ended | |
280 | ||
281 | } |