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Minor fix for software triggers.
[u/mrichter/AliRoot.git] / PWG3 / muon / AliAnalysisTaskDimuonCFContainerBuilder.cxx
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7dd391ec 1#ifndef ALIANALYSISTASKDIMUONCFCONTAINERBUILDER_CXX
2#define ALIANALYSISTASKDIMUONCFCONTAINERBUILDER_CXX
3
4#include "AliAnalysisTaskDimuonCFContainerBuilder.h"
7dd391ec 5#include "AliStack.h"
6#include "TParticle.h"
7#include "TString.h"
8#include "TLorentzVector.h"
7dd391ec 9#include "TH2D.h"
7dd391ec 10#include "AliAnalysisManager.h"
11#include "AliESDEvent.h"
12#include "AliAODEvent.h"
13#include "AliCFManager.h"
7dd391ec 14#include "AliCFContainer.h"
7dd391ec 15#include "AliESDMuonTrack.h"
7dd391ec 16#include "AliESDInputHandler.h"
7dd391ec 17#include "AliAODInputHandler.h"
18#include "AliAODMCParticle.h"
19
20// Analysis task for the building of a dimuon CF container
21// Also some single-muon variables are stored
8320cad2 22// All the variable ranges and binning are set in the AddTask macro
23//
24// author: L. Bianchi - Universita' & INFN Torino
7dd391ec 25
26
27ClassImp(AliAnalysisTaskDimuonCFContainerBuilder)
28
29//__________________________________________________________________________
30AliAnalysisTaskDimuonCFContainerBuilder::AliAnalysisTaskDimuonCFContainerBuilder() :
31 fReadAODData(0),
32 fReadMCInfo(kTRUE),
33 fIsAccProduction(kTRUE),
34 fCFManager(0x0),
35 fQAHistList(0x0),
36 fNevt(0),
37 fBeamEnergy(3500.),
38 fOutput(0x0),
39 fCutOnzVtxSPD(kFALSE),
40 fCutOnNContributors(kFALSE),
41 fTrigClassMuon(""),
42 fTrigClassInteraction(""),
43 fDistinguishTrigClass(kFALSE)
44{
45
46 //Default constructor
47
48 Double_t chilims[2]={0.,10000.};
49 Double_t ptlims[2]={0.,100.};
50 Double_t thetalims[2]={0.,180.};
51 Double_t vtxlims[2]={-1000.,1000.};
52 SetChi2Limits(chilims);
53 SetChi2MatchLimits(chilims);
54 SetPtSingMuLimits(ptlims);
55 SetThetaSingMuLimits(thetalims);
56 SetZprimVertLimits(vtxlims);
57 SetTrigClassMuonName();
58 SetTrigClassInteracName();
59 TString namemuonside[4]={"CMUS1A-","CMUS1B-","CMUS1C-","CMUS1-E-"};
60 TString nameinteractionside[4]={"CINT1A-","CINT1B-","CINT1C-","CINT1-E"};
61 SetTrigClassMuonSideName(namemuonside);
62 SetTrigClassInteracSideName(nameinteractionside);
63}
64//___________________________________________________________________________
65AliAnalysisTaskDimuonCFContainerBuilder::AliAnalysisTaskDimuonCFContainerBuilder(const Char_t* name, Bool_t readaod, Bool_t readMC, Bool_t isaccept, Double_t beamEn) :
66 AliAnalysisTaskSE(name),
67 fReadAODData(0),
68 fReadMCInfo(kTRUE),
69 fIsAccProduction(kTRUE),
70 fCFManager(0x0),
71 fQAHistList(0x0),
72 fNevt(0),
73 fBeamEnergy(3500.),
74 fOutput(0x0),
75 fCutOnzVtxSPD(kFALSE),
76 fCutOnNContributors(kFALSE),
77 fTrigClassMuon(""),
78 fTrigClassInteraction(""),
79 fDistinguishTrigClass(kFALSE)
80{
81 //
82 // Constructor. Initialization of Inputs and Outputs
83 //
84 Info("AliAnalysisTaskDimuonCFContainerBuilder","Calling Constructor");
85
86 SetReadAODData(readaod);
87 SetReadMCinfo(readMC);
88 SetIsAccProd(isaccept);
89 SetBeamEnergy(beamEn);
90
91 Double_t chilims[2]={0.,10000.};
92 Double_t ptlims[2]={0.,100.};
93 Double_t thetalims[2]={0.,180.};
94 Double_t vtxlims[2]={-1000.,1000.};
95 SetChi2Limits(chilims);
96 SetChi2MatchLimits(chilims);
97 SetPtSingMuLimits(ptlims);
98 SetThetaSingMuLimits(thetalims);
99 SetZprimVertLimits(vtxlims);
100 SetTrigClassMuonName();
101 SetTrigClassInteracName();
102 TString namemuonside[4]={"CMUS1A-","CMUS1B-","CMUS1C-","CMUS1-E-"};
103 TString nameinteractionside[4]={"CINT1A-","CINT1B-","CINT1C-","CINT1-E"};
104 SetTrigClassMuonSideName(namemuonside);
105 SetTrigClassInteracSideName(nameinteractionside);
106
107 DefineOutput(1,TList::Class());
108 DefineOutput(2,AliCFContainer::Class());
109
110}
111
112//___________________________________________________________________________
113AliAnalysisTaskDimuonCFContainerBuilder& AliAnalysisTaskDimuonCFContainerBuilder::operator=(const AliAnalysisTaskDimuonCFContainerBuilder& c)
114{
115 //
116 // Assignment operator
117 //
118 if (this!=&c) {
119 AliAnalysisTaskSE::operator=(c) ;
120 fReadAODData = c.fReadAODData ;
121 fCFManager = c.fCFManager;
122 fQAHistList = c.fQAHistList ;
123 fNevt = c.fNevt ;
124 }
125 return *this;
126}
127
128//___________________________________________________________________________
129AliAnalysisTaskDimuonCFContainerBuilder::AliAnalysisTaskDimuonCFContainerBuilder(const AliAnalysisTaskDimuonCFContainerBuilder& c) :
130 AliAnalysisTaskSE(c),
131 fReadAODData(c.fReadAODData),
132 fReadMCInfo(c.fReadMCInfo),
133 fIsAccProduction(c.fIsAccProduction),
134 fCFManager(c.fCFManager),
135 fQAHistList(c.fQAHistList),
136 fNevt(c.fNevt),
137 fBeamEnergy(c.fBeamEnergy),
138 fOutput(c.fOutput),
139 fCutOnzVtxSPD(c.fCutOnzVtxSPD),
140 fCutOnNContributors(c.fCutOnNContributors),
141 fTrigClassMuon(c.fTrigClassMuon),
142 fTrigClassInteraction(c.fTrigClassInteraction),
143 fDistinguishTrigClass(c.fDistinguishTrigClass)
144{
145
146 // Copy Constructor
147
148}
149
150//___________________________________________________________________________
151AliAnalysisTaskDimuonCFContainerBuilder::~AliAnalysisTaskDimuonCFContainerBuilder() {
152 //
153 //destructor
154 //
155 Info("~AliAnalysisTaskDimuonCFContainerBuilder","Calling Destructor");
156 if (fCFManager) delete fCFManager ;
157 if (fQAHistList) {fQAHistList->Clear(); delete fQAHistList;}
158}
159
160//___________________________________________________________________________
161void AliAnalysisTaskDimuonCFContainerBuilder::UserCreateOutputObjects(){
8320cad2 162 // UserCreateOutputObjects
7dd391ec 163 fOutput = new TList();
164 fOutput->SetOwner();
165
166 TH1D *hnevts = new TH1D("hnevts","hnevts",1,0,1); // Stat check histos
8320cad2 167 TH1D *jpsiMult = new TH1D("jpsiMult","jpsiMult",20,0,20);
7dd391ec 168
169 TH1D *ptdimuREC = new TH1D("ptdimuREC","ptdimuREC",200,0,20); // Dimu check histos
170 TH1D *ydimuREC = new TH1D("ydimuREC","ydimuREC",200,-10.,10.);
171 TH1D *ydimuFail = new TH1D("ydimuFail","ydimuFail",10,660,670);
172 TH1D *costHEdimuREC= new TH1D("costHEdimuREC","costHEdimuREC",200,-1.,1.);
173 TH1D *costCSdimuREC= new TH1D("costCSdimuREC","costCSdimuREC",200,-1.,1.);
174 TH1D *costHEdimuFail= new TH1D("costHEdimuFail","costHEdimuFail",10,660.,670.);
175 TH1D *costCSdimuFail= new TH1D("costCSdimuFail","costCSdimuFail",10,660.,670.);
176 TH1D *phiHEdimuREC = new TH1D("phiHEdimuREC","phiHEdimuREC",100,0.,TMath::Pi());
177 TH1D *phiCSdimuREC = new TH1D("phiCSdimuREC","phiCSdimuREC",100,0.,TMath::Pi());
178 TH1D *phiHEdimuFail = new TH1D("phiHEdimuFail","phiHEdimuFail",10,660.,670.);
179 TH1D *phiCSdimuFail = new TH1D("phiCSdimuFail","phiCSdimuFail",10,660.,670.);
180 TH1D *imassTot = new TH1D("imassTot","imassTot",100,0,8);
181 TH1D *trigCond = new TH1D("trigCond","trigCond",40,0,4);
182
8320cad2 183 TH1D *emuonREC = new TH1D("emuonREC","emuonREC",200,0.,20.); // Mu check histos
7dd391ec 184 TH1D *ptmuonREC= new TH1D("ptmuonREC","ptmuonREC",200,0.,20.);
185 TH1D *ymuonREC = new TH1D("ymuonREC","ymuonREC",200,-10.,10.);
186 TH1D *hdca = new TH1D("hdca","hdca",20,0,200);
187 TH2D *hdcay = new TH2D("hdcay","hdcay",200,0,200,20,-5,0);
188
189 TH1D *zvSPD = new TH1D("zvSPD","zvSPD",100,-50,50.); // Event check histos
190 TH1D *zvSPDcut = new TH1D("zvSPDcut","zvSPDcut",100,-50,50.);
8320cad2 191 TH1D *nContrib = new TH1D("nContrib","nContrib",100,0,100);
7dd391ec 192
193
194 fOutput->Add(hnevts);
8320cad2 195 fOutput->Add(jpsiMult);
7dd391ec 196
197 fOutput->Add(ptdimuREC);
198 fOutput->Add(ydimuREC);
199 fOutput->Add(ydimuFail);
200 fOutput->Add(costHEdimuREC);
201 fOutput->Add(costCSdimuREC);
202 fOutput->Add(costHEdimuFail);
203 fOutput->Add(costCSdimuFail);
204 fOutput->Add(phiHEdimuREC);
205 fOutput->Add(phiCSdimuREC);
206 fOutput->Add(phiHEdimuFail);
207 fOutput->Add(phiCSdimuFail);
208 fOutput->Add(imassTot);
209 fOutput->Add(trigCond);
210
8320cad2 211 fOutput->Add(emuonREC);
7dd391ec 212 fOutput->Add(ptmuonREC);
213 fOutput->Add(ymuonREC);
214 fOutput->Add(hdca);
215 fOutput->Add(hdcay);
216
217 fOutput->Add(zvSPD);
218 fOutput->Add(zvSPDcut);
8320cad2 219 fOutput->Add(nContrib);
7dd391ec 220
221
222 fOutput->ls();
223
224
225}
226
227
228//_________________________________________________
229void AliAnalysisTaskDimuonCFContainerBuilder::UserExec(Option_t *)
230{
231
232
233 //Info("UserExec","");
234 fNevt++;
235 ((TH1D*)(fOutput->FindObject("hnevts")))->Fill(0.5);
236
237 Double_t containerInput[15]={666,666,666,666,666,666,666,666,666,666,666,666,666,666,666}; //y, pT, costHE, phiHE, costCS, phiCS, mass, TrigCond
238 Int_t cutAccept =1;
8320cad2 239 Int_t numbJpsis =0;
7dd391ec 240
241 if (!fReadAODData){ // ESD-based ANALYSIS
242
243 if (fReadMCInfo){
244
245 if (!fMCEvent) {
246 Error("UserExec","NO MC EVENT FOUND!");
247 //return;
248 }
249
250 // MC part ---------------------------------------------------------------------------------------------------
251
252 //fCFManager->SetEventInfo(fMCEvent); CHANGES IN NEW VERSIONS - MANUAL CUT ON PDG
253 AliStack* stack = fMCEvent->Stack();
254
255 // loop on the MC event
256 for (Int_t ipart=0; ipart<fMCEvent->GetNumberOfTracks(); ipart++) {
257
258 AliMCParticle *mcPart = (AliMCParticle*) fMCEvent->GetTrack(ipart);
259
260 TParticle *part = mcPart->Particle();
261 TParticle *part0 = mcPart->Particle();
262 TParticle *part1 = mcPart->Particle();
263
264 // Mother kinematics
265 Double_t e = part->Energy();
266 Double_t pz = part->Pz();
267 Double_t rapmc = Rap(e,pz);
268
269 // Selection of the resonance
270 //if (!fCFManager->CheckParticleCuts(0,mcPart)) continue;
271 if (part->GetPdgCode()!=443) continue; // MANUAL CUT ON PDG
8320cad2 272 numbJpsis++;
7dd391ec 273
274 // Decays kinematics
275 Int_t p0 = part->GetDaughter(0);
276 part0 = stack->Particle(p0);
277 Int_t pdg0 = part0->GetPdgCode();
278
279 Int_t p1 = part->GetDaughter(1);
280 part1 = stack->Particle(p1);
281 Int_t pdg1 = part1->GetPdgCode();
282
283 Double_t e0 = part0->Energy();
284 Double_t pz0 = part0->Pz();
285 Double_t py0 = part0->Py();
286 Double_t px0 = part0->Px();
287 Double_t charge0 = part0->GetPDG()->Charge()/3;
288 Double_t theta0 = (180./TMath::Pi())*TMath::ATan2(TMath::Sqrt(px0*px0+py0*py0),pz0);
289 Double_t pt0 = TMath::Sqrt(px0*px0+py0*py0);
8320cad2 290 Double_t mom0 = part0->P();
7dd391ec 291
292 Double_t e1 = part1->Energy();
293 Double_t pz1 = part1->Pz();
294 Double_t py1 = part1->Py();
295 Double_t px1 = part1->Px();
296 //Double_t charge1 = part1->GetPDG()->Charge()/3;
297 Double_t theta1 = (180./TMath::Pi())*TMath::ATan2(TMath::Sqrt(px1*px1+py1*py1),pz1);
298 Double_t pt1 = TMath::Sqrt(px1*px1+py1*py1);
8320cad2 299 Double_t mom1 = part1->P();
7dd391ec 300
301
302 if(pdg0==13 || pdg1==13) {
303
304 Double_t ptmc = TMath::Sqrt((px0+px1)*(px0+px1)+(py0+py1)*(py0+py1));
305 Double_t imassmc = Imass(e0,px0,py0,pz0,e1,px1,py1,pz1);
306
307 Double_t costCS = CostCS(px0,py0,pz0,e0,charge0,px1,py1,pz1,e1);
308 Double_t costHE = CostHE(px0,py0,pz0,e0,charge0,px1,py1,pz1,e1);
309 Double_t phiCS = PhiCS(px0,py0,pz0,e0,charge0,px1,py1,pz1,e1);
310 Double_t phiHE = PhiHE(px0,py0,pz0,e0,charge0,px1,py1,pz1,e1);
311
312 containerInput[0] = rapmc ;
313 containerInput[1] = ptmc;
314 containerInput[2] = costHE;
315 containerInput[3] = TMath::Abs(phiHE);
316 containerInput[4] = costCS;
317 containerInput[5] = TMath::Abs(phiCS);
318 containerInput[6] = imassmc;
319 containerInput[7] = 1.; //for generated no trigger condition
320 if (pt0<pt1) {
321 containerInput[8]=pt0;
322 containerInput[9]=pt1;
323 } else {
324 containerInput[8]=pt1;
325 containerInput[9]=pt0;
326 }
327 if (theta0<theta1) {
328 containerInput[10]=theta0;
329 containerInput[11]=theta1;
330 } else {
331 containerInput[10]=theta1;
332 containerInput[11]=theta0;
333 }
8320cad2 334 if (mom0<mom1) {
335 containerInput[12]=mom0;
336 containerInput[13]=mom1;
7dd391ec 337 } else {
8320cad2 338 containerInput[12]=mom1;
339 containerInput[13]=mom0;
7dd391ec 340 }
341 containerInput[14]=1.;
342
343 // fill the container at the first step
344 fCFManager->GetParticleContainer()->Fill(containerInput,0);
345
346 if(fIsAccProduction){
347 // acceptance cuts on single mu
348 if(theta0<fThetaSingMuCut[0]||theta0>fThetaSingMuCut[1]||theta1<fThetaSingMuCut[0]||theta1>fThetaSingMuCut[1]) cutAccept=0;
349 if(pt0<fPtSingMuCut[0] || pt0>fPtSingMuCut[1] || pt1<fPtSingMuCut[0] || pt1>fPtSingMuCut[1]) cutAccept=0;
350 if (cutAccept ==1) fCFManager->GetParticleContainer()->Fill(containerInput,2);
351 }
352 }
353 }
354 } //fReadMCInfo
355
356
357 // ESD part ---------------------------------------------------------------------------------------------------
358
359 AliESDEvent *fESD;
360 AliESDInputHandler *esdH = dynamic_cast<AliESDInputHandler*>(AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler());
361 fESD = esdH->GetEvent();
362 Int_t mult1 = fESD->GetNumberOfMuonTracks() ;
363
364 Int_t trigfired=-1;
365 Int_t trigside=-1;
366 if(fDistinguishTrigClass){
367 //aod->GetHeader()->SetFiredTriggerClasses("CMU");
368 TString trigclass = fESD->GetFiredTriggerClasses();
369 printf("TrigClass: %s\n",trigclass.Data());
370 if(trigclass.Contains(fTrigClassMuon)) trigfired = 1;
371 else if (trigclass.Contains(fTrigClassInteraction)) trigfired = 0;
372 printf("Muon container: %d\n",trigfired);
373 for(Int_t i=0;i<4;i++){
374 if(trigfired==1 && trigclass.Contains(fTrigClassMuonSide[i])) {trigside=i;printf("Muon Side: %d\n",trigside);}
375 if(trigfired==0 && trigclass.Contains(fTrigClassInteractionSide[i])) {trigside=i;printf("Interaction Side: %d\n",trigside);}
376 }
377 }
378
379 ((TH1D*)(fOutput->FindObject("zvSPD")))->Fill(fESD->GetPrimaryVertexSPD()->GetZ());
8320cad2 380 ((TH1D*)(fOutput->FindObject("nContrib")))->Fill(fESD->GetPrimaryVertexSPD()->GetNContributors());
7dd391ec 381 if (!fCutOnzVtxSPD || (fCutOnzVtxSPD && (fESD->GetPrimaryVertexSPD()->GetZ()>fzPrimVertexSPD[0] && fESD->GetPrimaryVertexSPD()->GetZ()<fzPrimVertexSPD[1]))){
382 ((TH1D*)(fOutput->FindObject("zvSPDcut")))->Fill(fESD->GetPrimaryVertexSPD()->GetZ());
383 if (!fCutOnNContributors || (fCutOnNContributors && (fESD->GetPrimaryVertexSPD()->GetNContributors()>fNContributors[0] && fESD->GetPrimaryVertexSPD()->GetNContributors()<fNContributors[1]))){
384 for (Int_t j = 0; j<mult1; j++) {
385
386 AliESDMuonTrack* mu1 = new AliESDMuonTrack(*(fESD->GetMuonTrack(j)));
387 if (!mu1->ContainTrackerData()) continue;
388 if (mu1->GetChi2()<fChi2Track[0] || mu1->GetChi2()>fChi2Track[1]) continue;
389 if (mu1->GetChi2MatchTrigger()<fChi2MatchTrig[0] || mu1->GetChi2MatchTrigger()>fChi2MatchTrig[1]) continue;
390 Double_t zr1 = mu1->Charge();
391 Double_t pxr1 = mu1->Px();
392 Double_t pyr1 = mu1->Py();
393 Double_t pzr1 = mu1->Pz();
394 Double_t ptmu1 = TMath::Sqrt(pxr1*pxr1+pyr1*pyr1);
395 Double_t er1 = mu1->E();
8320cad2 396 Double_t mom1 = mu1->P();
7dd391ec 397 Double_t theta1 = (180./TMath::Pi())*mu1->Theta();
398 Double_t rapiditymu1 = Rap(er1,pzr1);
8320cad2 399 ((TH1D*)(fOutput->FindObject("emuonREC")))->Fill(er1);
7dd391ec 400 ((TH1D*)(fOutput->FindObject("ptmuonREC")))->Fill(ptmu1);
401 ((TH1D*)(fOutput->FindObject("ymuonREC")))->Fill(rapiditymu1);
402
403 if(zr1<0){
404
405 for (Int_t jj = 0; jj<mult1; jj++) {
406
407 AliESDMuonTrack* mu2 = new AliESDMuonTrack(*(fESD->GetMuonTrack(jj)));
408 if (!mu2->ContainTrackerData()) continue;
409 if (mu2->GetChi2()<fChi2Track[0] || mu2->GetChi2()>fChi2Track[1]) continue;
410 if (mu2->GetChi2MatchTrigger()<fChi2MatchTrig[0] || mu2->GetChi2MatchTrigger()>fChi2MatchTrig[1]) continue;
411 Double_t zr2 = mu2->Charge();
412
413 if(zr2>0){
8320cad2 414 Double_t trigCondition=0;
415 if (mu1->GetMatchTrigger()>=mu2->GetMatchTrigger()) trigCondition = mu1->GetMatchTrigger()+0.1*mu2->GetMatchTrigger();
416 else trigCondition = mu2->GetMatchTrigger()+0.1*mu1->GetMatchTrigger();
417 ((TH1D*)(fOutput->FindObject("trigCond")))->Fill(trigCondition);
7dd391ec 418 Double_t pxr2 = mu2->Px();
419 Double_t pyr2 = mu2->Py();
420 Double_t pzr2 = mu2->Pz();
421 Double_t ptmu2 = TMath::Sqrt(pxr2*pxr2+pyr2*pyr2);
422 Double_t er2 = mu2->E();
8320cad2 423 Double_t mom2 = mu2->P();
7dd391ec 424 Double_t theta2 = (180./TMath::Pi())*mu2->Theta();
425
426 Double_t ptrec = TMath::Sqrt((pxr1+pxr2)*(pxr1+pxr2)+(pyr1+pyr2)*(pyr1+pyr2));
427 ((TH1D*)(fOutput->FindObject("ptdimuREC")))->Fill(ptrec);
428 Double_t raprec= Rap((er1+er2),(pzr1+pzr2));
429 ((TH1D*)(fOutput->FindObject("ydimuREC")))->Fill(raprec);
430 Double_t imassrec = Imass(er1,pxr1,pyr1,pzr1,er2,pxr2,pyr2,pzr2);
431 ((TH1D*)(fOutput->FindObject("imassTot")))->Fill(imassrec);
432
433 if (imassrec>12.) continue;
434
435 Double_t costCSrec = CostCS(pxr1,pyr1,pzr1,er1,zr1,pxr2,pyr2,pzr2,er2);
436 ((TH1D*)(fOutput->FindObject("costCSdimuREC")))->Fill(costCSrec);
8320cad2 437 if((Int_t)costCSrec==666) ((TH1D*)(fOutput->FindObject("costCSdimuFail")))->Fill(costCSrec);
7dd391ec 438 Double_t costHErec = CostHE(pxr1,pyr1,pzr1,er1,zr1,pxr2,pyr2,pzr2,er2);
439 ((TH1D*)(fOutput->FindObject("costHEdimuREC")))->Fill(costHErec);
8320cad2 440 if((Int_t)costHErec==666) ((TH1D*)(fOutput->FindObject("costHEdimuFail")))->Fill(costHErec);
7dd391ec 441 Double_t phiCSrec = PhiCS(pxr1,pyr1,pzr1,er1,zr1,pxr2,pyr2,pzr2,er2);
442 ((TH1D*)(fOutput->FindObject("phiCSdimuREC")))->Fill(phiCSrec);
8320cad2 443 if((Int_t)phiCSrec==666) ((TH1D*)(fOutput->FindObject("phiCSdimuFail")))->Fill(phiCSrec);
7dd391ec 444 Double_t phiHErec = PhiHE(pxr1,pyr1,pzr1,er1,zr1,pxr2,pyr2,pzr2,er2);
445 ((TH1D*)(fOutput->FindObject("phiHEdimuREC")))->Fill(phiHErec);
8320cad2 446 if((Int_t)phiHErec==666) ((TH1D*)(fOutput->FindObject("phiHEdimuFail")))->Fill(phiHErec);
7dd391ec 447
448 containerInput[0] = raprec ;
449 containerInput[1] = ptrec;
450 containerInput[2] = costHErec;
451 containerInput[3] = TMath::Abs(phiHErec);
452 containerInput[4] = costCSrec;
453 containerInput[5] = TMath::Abs(phiCSrec);
454 containerInput[6] = imassrec;
8320cad2 455 containerInput[7] = trigCondition+0.05;
7dd391ec 456 if (ptmu1<ptmu2) {
457 containerInput[8]=ptmu1;
458 containerInput[9]=ptmu2;
459 } else {
460 containerInput[8]=ptmu2;
461 containerInput[9]=ptmu1;
462 }
463 if (theta1<theta2) {
464 containerInput[10]=theta1;
465 containerInput[11]=theta2;
466 } else {
467 containerInput[10]=theta2;
468 containerInput[11]=theta1;
469 }
8320cad2 470 if (mom1<mom2) {
471 containerInput[12]=mom1;
472 containerInput[13]=mom2;
7dd391ec 473 } else {
8320cad2 474 containerInput[12]=mom2;
475 containerInput[13]=mom1;
7dd391ec 476 }
477 if (fDistinguishTrigClass && trigside==0) containerInput[14]=0.;
478 else if (fDistinguishTrigClass && trigside==1) containerInput[14]=1.;
479 else if (fDistinguishTrigClass && trigside==2) containerInput[14]=2.;
480 else if (fDistinguishTrigClass && trigside==3) containerInput[14]=3.;
481 else containerInput[14]=0.;
482
483 if(fDistinguishTrigClass){
484 if (trigfired==1) fCFManager->GetParticleContainer()->Fill(containerInput,5);
485 else if (trigfired==0) fCFManager->GetParticleContainer()->Fill(containerInput,1);
486 } else {
487 fCFManager->GetParticleContainer()->Fill(containerInput,1);
488 if(fIsAccProduction){
489 if(cutAccept==1) fCFManager->GetParticleContainer()->Fill(containerInput,3);
490 }
491 }
492 } // mu+ Selection
493
494 } // second mu Loop
495 } // mu- Selection
496 }
497 }
498 }
499 } else { // AOD-based ANALYSIS
500
501 AliAODEvent *aod;
502 AliAODInputHandler *aodH = dynamic_cast<AliAODInputHandler*>(AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler());
503 aod = aodH->GetEvent();
504 Int_t ntracks=aod->GetNumberOfTracks();
505
506 // MC part ---------------------------------------------------------------------------------------------------
507
508 if (fReadMCInfo){
509 TClonesArray *mcarray = dynamic_cast<TClonesArray*> (aod->FindListObject(AliAODMCParticle::StdBranchName())); //array of MC particles in this event
510 for(int ii=0;ii<mcarray->GetEntries();ii++){
511 AliAODMCParticle *mctrack = (AliAODMCParticle*) mcarray->At(ii);
512 if(mctrack->GetPdgCode()!=13) continue;
8320cad2 513 Int_t numbMother = mctrack->GetMother();
514 if (numbMother==-1) continue;
515 AliAODMCParticle *mother = (AliAODMCParticle*) mcarray->At(numbMother);
7dd391ec 516 if (mother->GetPdgCode()!=443) continue;
8320cad2 517 numbJpsis++;
7dd391ec 518 Int_t daught0 = mother->GetDaughter(0);
519 Int_t daught1 = mother->GetDaughter(1);
520 AliAODMCParticle *mcDaughter0 = (AliAODMCParticle*) mcarray->At(daught0);
521 Double_t pxmc0 = mcDaughter0->Px();
522 Double_t pymc0 = mcDaughter0->Py();
523 Double_t pzmc0 = mcDaughter0->Pz();
524 Double_t ptmc0 = mcDaughter0->Pt();
8320cad2 525 Double_t mommc0 = mcDaughter0->P();
526 Double_t emc0 = mcDaughter0->E();
7dd391ec 527 Double_t thetamc0 = (180./TMath::Pi())*mcDaughter0->Theta();
528 Int_t charge0 = (Int_t) mcDaughter0->Charge()/3;
529 AliAODMCParticle *mcDaughter1 = (AliAODMCParticle*) mcarray->At(daught1);
530 Double_t pxmc1 = mcDaughter1->Px();
531 Double_t pymc1 = mcDaughter1->Py();
532 Double_t pzmc1 = mcDaughter1->Pz();
533 Double_t ptmc1 = mcDaughter1->Pt();
8320cad2 534 Double_t mommc1 = mcDaughter1->P();
535 Double_t emc1 = mcDaughter1->E();
7dd391ec 536 Double_t thetamc1 = (180./TMath::Pi())*mcDaughter1->Theta();
537 Int_t charge1 = (Int_t) mcDaughter1->Charge()/3;
538
539 if (charge0==charge1 || TMath::Abs(mcDaughter0->GetPdgCode())!=13 || TMath::Abs(mcDaughter1->GetPdgCode())!=13) continue;
7dd391ec 540 Double_t rapJpsi = Rap(mother->E(),mother->Pz());
541 Double_t ptJpsi = mother->Pt();
8320cad2 542 Double_t costHE = CostHE(pxmc0,pymc0,pzmc0,emc0,(Double_t)charge0,pxmc1,pymc1,pzmc1,emc1);
543 Double_t phiHE = PhiHE(pxmc0,pymc0,pzmc0,emc0,(Double_t)charge0,pxmc1,pymc1,pzmc1,emc1);
544 Double_t costCS = CostCS(pxmc0,pymc0,pzmc0,emc0,(Double_t)charge0,pxmc1,pymc1,pzmc1,emc1);
545 Double_t phiCS = PhiCS(pxmc0,pymc0,pzmc0,emc0,(Double_t)charge0,pxmc1,pymc1,pzmc1,emc1);
7dd391ec 546 Double_t massJpsi = mother->M();
547 containerInput[0] = rapJpsi;
548 containerInput[1] = ptJpsi;
549 containerInput[2] = costHE;
550 containerInput[3] = TMath::Abs(phiHE);
551 containerInput[4] = costCS;
552 containerInput[5] = TMath::Abs(phiCS);
553 containerInput[6] = massJpsi;
554 containerInput[7] = 1.; //for generated no trigger condition
555 if (ptmc0<ptmc1) {
556 containerInput[8]=ptmc0;
557 containerInput[9]=ptmc1;
558 } else {
559 containerInput[8]=ptmc1;
560 containerInput[9]=ptmc0;
561 }
562 if (thetamc0<thetamc1) {
563 containerInput[10]=thetamc0;
564 containerInput[11]=thetamc1;
565 } else {
566 containerInput[10]=thetamc1;
567 containerInput[11]=thetamc0;
568 }
8320cad2 569 if (mommc0<mommc1) {
570 containerInput[12]=mommc0;
571 containerInput[13]=mommc1;
7dd391ec 572 } else {
8320cad2 573 containerInput[12]=mommc1;
574 containerInput[13]=mommc0;
7dd391ec 575 }
576 containerInput[14]=1.;
577
8320cad2 578 if((Int_t)rapJpsi!=666 && (Int_t)costHE!=666 && (Int_t)phiHE!=666 && (Int_t)costCS!=666 && (Int_t)phiCS!=666){
7dd391ec 579 fCFManager->GetParticleContainer()->Fill(containerInput,0);
580 if(fIsAccProduction){
581 // acceptance cuts on single mu
582 if(thetamc0<fThetaSingMuCut[0]||thetamc0>fThetaSingMuCut[1]||thetamc1<fThetaSingMuCut[0]||thetamc1>fThetaSingMuCut[1]) cutAccept=0;
583 if(ptmc0<fPtSingMuCut[0] || ptmc0>fPtSingMuCut[1] || ptmc1<fPtSingMuCut[0] || ptmc1>fPtSingMuCut[1]) cutAccept=0;
584 if (cutAccept ==1) fCFManager->GetParticleContainer()->Fill(containerInput,2);
585 }
586
587 }
588
589 }
590 }
591
592
593 // AOD part ---------------------------------------------------------------------------------------------------
594
595 Int_t trigfired=-1;
596 Int_t trigside=-1;
597 if(fDistinguishTrigClass){
598 TString trigclass = aod->GetFiredTriggerClasses();
599 printf("TrigClass: %s\n",trigclass.Data());
600 if(trigclass.Contains(fTrigClassMuon)) trigfired = 1;
601 else if (trigclass.Contains(fTrigClassInteraction)) trigfired = 0;
602 printf("Muon container: %d\n",trigfired);
603 for(Int_t i=0;i<4;i++){
604 if(trigfired==1 && trigclass.Contains(fTrigClassMuonSide[i])) {trigside=i;printf("Muon Side: %d\n",trigside);}
605 if(trigfired==0 && trigclass.Contains(fTrigClassInteractionSide[i])) {trigside=i;printf("Interaction Side: %d\n",trigside);}
606 }
607 }
608
609 ((TH1D*)(fOutput->FindObject("zvSPD")))->Fill(aod->GetPrimaryVertex()->GetZ());
610 Int_t ncontr = aod->GetPrimaryVertex()->GetNContributors();
8320cad2 611 ((TH1D*)(fOutput->FindObject("nContrib")))->Fill(ncontr);
7dd391ec 612 if (!fCutOnzVtxSPD || (fCutOnzVtxSPD && (aod->GetPrimaryVertex()->GetZ()>fzPrimVertexSPD[0] && aod->GetPrimaryVertex()->GetZ()<fzPrimVertexSPD[1]))){ //NOT REALLY SPD VERTEX
613 ((TH1D*)(fOutput->FindObject("zvSPDcut")))->Fill(aod->GetPrimaryVertex()->GetZ());
614 if (!fCutOnNContributors || (fCutOnNContributors && (aod->GetPrimaryVertex()->GetNContributors()>fNContributors[0] && aod->GetPrimaryVertex()->GetNContributors()<fNContributors[1]))){
615 for (Int_t j = 0; j<ntracks; j++) {
616 AliAODTrack *mu1 = aod->GetTrack(j);
617 if(!mu1->IsMuonTrack()) continue;
618 if (mu1->Chi2perNDF()<fChi2Track[0] || mu1->Chi2perNDF()>fChi2Track[1]) continue;
619 if (mu1->GetChi2MatchTrigger()<fChi2MatchTrig[0] || mu1->GetChi2MatchTrigger()>fChi2MatchTrig[1]) continue;
620 Double_t chargemu1 = mu1->Charge();
621 Double_t pxmu1 = mu1->Px();
622 Double_t pymu1 = mu1->Py();
623 Double_t pzmu1 = mu1->Pz();
624 Double_t emu1 = mu1->E();
625 Double_t pmu1 = mu1->P();
626 Double_t ptmu1 = mu1->Pt();
627 Double_t rapiditymu1 = Rap(emu1,pzmu1);
628 Double_t thetamu1 = (180./TMath::Pi())*mu1->Theta();
8320cad2 629 Double_t rdcamu1 = mu1->DCA();
630 ((TH1D*)(fOutput->FindObject("emuonREC")))->Fill(emu1);
7dd391ec 631 ((TH1D*)(fOutput->FindObject("ptmuonREC")))->Fill(ptmu1);
632 ((TH1D*)(fOutput->FindObject("ymuonREC")))->Fill(rapiditymu1);
633 if(chargemu1<0){
634 for (Int_t jj = 0; jj<ntracks; jj++) {
635 AliAODTrack *mu2 = aod->GetTrack(jj);
636 if(!mu2->IsMuonTrack()) continue;
637 if (mu2->Chi2perNDF()<fChi2Track[0] || mu2->Chi2perNDF()>fChi2Track[1]) continue;
638 if (mu2->GetChi2MatchTrigger()<fChi2MatchTrig[0] || mu2->GetChi2MatchTrigger()>fChi2MatchTrig[1]) continue;
639 Double_t chargemu2 = mu2->Charge();
640 Double_t pxmu2 = mu2->Px();
641 Double_t pymu2 = mu2->Py();
642 Double_t pzmu2 = mu2->Pz();
643 Double_t emu2 = mu2->E();
644 Double_t pmu2 = mu2->P();
645 Double_t ptmu2 = mu2->Pt();
646 //Double_t rapiditymu2 = Rap(emu2,pzmu2);
647 Double_t thetamu2 = (180./TMath::Pi())*mu2->Theta();
8320cad2 648 Double_t rdcamu2 = mu2->DCA();
7dd391ec 649 if(chargemu2>0){
650 if (mu1->GetMatchTrigger()>0) printf("Mu1: charge: %f, match: %d\n",chargemu1,1);
651 else printf("Mu1: charge: %f, match: %d\n",chargemu1,0);
652 if (mu2->GetMatchTrigger()>0) printf("Mu2: charge: %f, match: %d\n",chargemu2,1);
653 else printf("Mu2: charge: %f, match: %d\n",chargemu2,0);
8320cad2 654 ((TH1D*)(fOutput->FindObject("hdca")))->Fill(rdcamu2);
655 ((TH1D*)(fOutput->FindObject("hdca")))->Fill(rdcamu1);
656 Double_t trigCondition=0;
657 if (mu1->GetMatchTrigger()>=mu2->GetMatchTrigger()) trigCondition = mu1->GetMatchTrigger()+0.1*mu2->GetMatchTrigger();
658 else trigCondition = mu2->GetMatchTrigger()+0.1*mu1->GetMatchTrigger();
7dd391ec 659 containerInput[0] = (Double_t) Rap((emu1+emu2),(pzmu1+pzmu2));
660 ((TH1D*)(fOutput->FindObject("ydimuREC")))->Fill(containerInput[0]);
8320cad2 661 ((TH2D*)(fOutput->FindObject("hdcay")))->Fill(TMath::Max(rdcamu1,rdcamu2),containerInput[0]);
7dd391ec 662 //((TH2D*)(fOutput->FindObject("hdcay")))->Fill(Rdcamu2,containerInput[0]);
663 containerInput[1] = (Double_t) TMath::Sqrt((pxmu1+pxmu2)*(pxmu1+pxmu2)+(pymu1+pymu2)*(pymu1+pymu2));
664 ((TH1D*)(fOutput->FindObject("ptdimuREC")))->Fill(containerInput[1]);
665 containerInput[2] = CostHE(pxmu1,pymu1,pzmu1,emu1,chargemu1,pxmu2,pymu2,pzmu2,emu2);
666 ((TH1D*)(fOutput->FindObject("costHEdimuREC")))->Fill(containerInput[2]);
667 if(containerInput[2]==666) ((TH1D*)(fOutput->FindObject("costHEdimuFail")))->Fill(containerInput[2]);
668 containerInput[3] = TMath::Abs(PhiHE(pxmu1,pymu1,pzmu1,emu1,chargemu1,pxmu2,pymu2,pzmu2,emu2));
669 ((TH1D*)(fOutput->FindObject("phiHEdimuREC")))->Fill(containerInput[3]);
670 if(containerInput[3]==666) ((TH1D*)(fOutput->FindObject("phiHEdimuFail")))->Fill(containerInput[3]);
671 containerInput[4] = CostCS(pxmu1,pymu1,pzmu1,emu1,chargemu1,pxmu2,pymu2,pzmu2,emu2);
672 ((TH1D*)(fOutput->FindObject("costCSdimuREC")))->Fill(containerInput[4]);
673 if(containerInput[4]==666) ((TH1D*)(fOutput->FindObject("costCSdimuFail")))->Fill(containerInput[4]);
674 containerInput[5] = TMath::Abs(PhiCS(pxmu1,pymu1,pzmu1,emu1,chargemu1,pxmu2,pymu2,pzmu2,emu2));
675 ((TH1D*)(fOutput->FindObject("phiCSdimuREC")))->Fill(containerInput[5]);
676 if(containerInput[5]==666) ((TH1D*)(fOutput->FindObject("phiCSdimuFail")))->Fill(containerInput[5]);
677 containerInput[6] = Imass(emu1,pxmu1,pymu1,pzmu1,emu2,pxmu2,pymu2,pzmu2);
678 ((TH1D*)(fOutput->FindObject("imassTot")))->Fill(containerInput[6]);
8320cad2 679 containerInput[7] = trigCondition+0.05;
7dd391ec 680 ((TH1D*)(fOutput->FindObject("trigCond")))->Fill(containerInput[7]);
681 if (ptmu1<ptmu2) {
682 containerInput[8]=ptmu1;
683 containerInput[9]=ptmu2;
684 } else {
685 containerInput[8]=ptmu2;
686 containerInput[9]=ptmu1;
687 }
688 if (thetamu1<thetamu2) {
689 containerInput[10]=thetamu1;
690 containerInput[11]=thetamu2;
691 } else {
692 containerInput[10]=thetamu2;
693 containerInput[11]=thetamu1;
694 }
695 if (pmu1<pmu2) {
696 containerInput[12]=pmu1;
697 containerInput[13]=pmu2;
698 } else {
699 containerInput[12]=pmu2;
700 containerInput[13]=pmu1;
701 }
702 if (fDistinguishTrigClass && trigside==0) containerInput[14]=0.;
703 else if (fDistinguishTrigClass && trigside==1) containerInput[14]=1.;
704 else if (fDistinguishTrigClass && trigside==2) containerInput[14]=2.;
705 else if (fDistinguishTrigClass && trigside==3) containerInput[14]=3.;
706 else containerInput[14]=0.;
707
708 if(containerInput[2]!=666 && containerInput[3]!=666 && containerInput[4]!=666 && containerInput[5]!=666){
709 if(fDistinguishTrigClass){
710 if (trigfired==1) fCFManager->GetParticleContainer()->Fill(containerInput,5);
711 else if (trigfired==0) fCFManager->GetParticleContainer()->Fill(containerInput,1);
712 } else {
713 fCFManager->GetParticleContainer()->Fill(containerInput,1);
714 if(fIsAccProduction){
715 if (cutAccept ==1) fCFManager->GetParticleContainer()->Fill(containerInput,3);
716 }
717 }
718 } else if (containerInput[0]==666) ((TH1D*)(fOutput->FindObject("ydimuFail")))->Fill(containerInput[0]);
719
720 }
721
722 }
723
724 }
725
726 }
727 }
728 }
729
730
731 }
732
733
734// ----------
8320cad2 735 if (fReadMCInfo) ((TH1D*)(fOutput->FindObject("jpsiMult")))->Fill(numbJpsis);
7dd391ec 736
737 PostData(1,fOutput) ;
738 PostData(2,fCFManager->GetParticleContainer()) ;
739
740
741}
742
743//________________________________________________________________________
744Double_t AliAnalysisTaskDimuonCFContainerBuilder::Imass(Double_t e1, Double_t px1, Double_t py1, Double_t pz1,
8320cad2 745 Double_t e2, Double_t px2, Double_t py2, Double_t pz2) const
7dd391ec 746{
747// invariant mass calculation
748 Double_t imassrec = TMath::Sqrt((e1+e2)*(e1+e2)-((px1+px2)*(px1+px2)+
749 (py1+py2)*(py1+py2)+(pz1+pz2)*(pz1+pz2)));
750 return imassrec;
751}
752
753//________________________________________________________________________
8320cad2 754Double_t AliAnalysisTaskDimuonCFContainerBuilder::Rap(Double_t e, Double_t pz) const
7dd391ec 755{
756// calculate rapidity
757 Double_t rap;
758 if(e>TMath::Abs(pz)){ // in order to avoid problems with AODs
759 rap = 0.5*TMath::Log((e+pz)/(e-pz));
760 return rap;
761 }
762 else{
763 rap = 666.;
764 return rap;
765 }
766}
767
768//________________________________________________________________________
769Double_t AliAnalysisTaskDimuonCFContainerBuilder::CostCS(Double_t px1, Double_t py1, Double_t pz1, Double_t e1,
770Double_t charge1, Double_t px2, Double_t py2, Double_t pz2, Double_t e2)
771{
772// Cosine of the theta decay angle (mu+) in the Collins-Soper frame
773
8320cad2 774 TLorentzVector pMu1CM, pMu2CM, pProjCM, pTargCM, pDimuCM; // In the CM. frame
775 TLorentzVector pMu1Dimu, pMu2Dimu, pProjDimu, pTargDimu; // In the dimuon rest frame
7dd391ec 776 TVector3 beta,zaxisCS;
777 Double_t mp=0.93827231;
778 //
779 // --- Fill the Lorentz vector for projectile and target in the CM frame
780 //
8320cad2 781 pProjCM.SetPxPyPzE(0.,0.,-fBeamEnergy,TMath::Sqrt(fBeamEnergy*fBeamEnergy+mp*mp));
782 pTargCM.SetPxPyPzE(0.,0.,fBeamEnergy,TMath::Sqrt(fBeamEnergy*fBeamEnergy+mp*mp));
7dd391ec 783 //
784 // --- Get the muons parameters in the CM frame
785 //
8320cad2 786 pMu1CM.SetPxPyPzE(px1,py1,pz1,e1);
787 pMu2CM.SetPxPyPzE(px2,py2,pz2,e2);
7dd391ec 788 //
789 // --- Obtain the dimuon parameters in the CM frame
790 //
8320cad2 791 pDimuCM=pMu1CM+pMu2CM;
7dd391ec 792 //
793 // --- Translate the dimuon parameters in the dimuon rest frame
794 //
8320cad2 795 beta=(-1./pDimuCM.E())*pDimuCM.Vect();
7dd391ec 796 if(beta.Mag()>=1) return 666.;
8320cad2 797 pMu1Dimu=pMu1CM;
798 pMu2Dimu=pMu2CM;
799 pProjDimu=pProjCM;
800 pTargDimu=pTargCM;
801 pMu1Dimu.Boost(beta);
802 pMu2Dimu.Boost(beta);
803 pProjDimu.Boost(beta);
804 pTargDimu.Boost(beta);
7dd391ec 805
806 //Debugging part -------------------------------------
807 Double_t debugProj[4]={0.,0.,0.,0.};
808 Double_t debugTarg[4]={0.,0.,0.,0.};
809 Double_t debugMu1[4]={0.,0.,0.,0.};
810 Double_t debugMu2[4]={0.,0.,0.,0.};
8320cad2 811 pMu1Dimu.GetXYZT(debugMu1);
812 pMu2Dimu.GetXYZT(debugMu2);
813 pProjDimu.GetXYZT(debugProj);
814 pTargDimu.GetXYZT(debugTarg);
7dd391ec 815 if (debugProj[0]!=debugProj[0] ||debugProj[1]!=debugProj[1] || debugProj[2]!=debugProj[2] ||debugProj[3]!=debugProj[3]) return 666;
816 if (debugTarg[0]!=debugTarg[0] ||debugTarg[1]!=debugTarg[1] || debugTarg[2]!=debugTarg[2] ||debugTarg[3]!=debugTarg[3]) return 666;
817 if (debugMu1[0]!=debugMu1[0] ||debugMu1[1]!=debugMu1[1] || debugMu1[2]!=debugMu1[2] ||debugMu1[3]!=debugMu1[3]) return 666;
818 if (debugMu2[0]!=debugMu2[0] ||debugMu2[1]!=debugMu2[1] || debugMu2[2]!=debugMu2[2] ||debugMu2[3]!=debugMu2[3]) return 666;
819 //----------------------------------------------------
820
821 // --- Determine the z axis for the CS angle
8320cad2 822 zaxisCS=(((pProjDimu.Vect()).Unit())-((pTargDimu.Vect()).Unit())).Unit();
7dd391ec 823
824 // --- Determine the CS angle (angle between mu+ and the z axis defined above)
825 Double_t cost;
826
8320cad2 827 if(charge1>0) {cost = zaxisCS.Dot((pMu1Dimu.Vect()).Unit());}
828 else {cost = zaxisCS.Dot((pMu2Dimu.Vect()).Unit());}
7dd391ec 829
830 return cost;
831}
832
833//________________________________________________________________________
834Double_t AliAnalysisTaskDimuonCFContainerBuilder::CostHE(Double_t px1, Double_t py1, Double_t pz1, Double_t e1,
835Double_t charge1, Double_t px2, Double_t py2, Double_t pz2, Double_t e2)
836{
837// Cosine of the theta decay angle (mu+) in the Helicity frame
838
8320cad2 839 TLorentzVector pMu1CM, pMu2CM, pDimuCM; // In the CM frame
840 TLorentzVector pMu1Dimu, pMu2Dimu; // In the dimuon rest frame
7dd391ec 841 TVector3 beta,zaxisCS;
842 //
843 // --- Get the muons parameters in the CM frame
844 //
8320cad2 845 pMu1CM.SetPxPyPzE(px1,py1,pz1,e1);
846 pMu2CM.SetPxPyPzE(px2,py2,pz2,e2);
7dd391ec 847 //
848 // --- Obtain the dimuon parameters in the CM frame
849 //
8320cad2 850 pDimuCM=pMu1CM+pMu2CM;
7dd391ec 851 //
852 // --- Translate the muon parameters in the dimuon rest frame
853 //
8320cad2 854 beta=(-1./pDimuCM.E())*pDimuCM.Vect();
7dd391ec 855 if(beta.Mag()>=1) return 666.;
8320cad2 856 pMu1Dimu=pMu1CM;
857 pMu2Dimu=pMu2CM;
858 pMu1Dimu.Boost(beta);
859 pMu2Dimu.Boost(beta);
7dd391ec 860
861 //Debugging part -------------------------------------
862 Double_t debugMu1[4]={0.,0.,0.,0.};
863 Double_t debugMu2[4]={0.,0.,0.,0.};
8320cad2 864 pMu1Dimu.GetXYZT(debugMu1);
865 pMu2Dimu.GetXYZT(debugMu2);
7dd391ec 866 if (debugMu1[0]!=debugMu1[0] ||debugMu1[1]!=debugMu1[1] || debugMu1[2]!=debugMu1[2] ||debugMu1[3]!=debugMu1[3]) return 666;
867 if (debugMu2[0]!=debugMu2[0] ||debugMu2[1]!=debugMu2[1] || debugMu2[2]!=debugMu2[2] ||debugMu2[3]!=debugMu2[3]) return 666;
868 //----------------------------------------------------
869
870 // --- Determine the z axis for the calculation of the polarization angle (i.e. the direction of the dimuon in the CM system)
871 TVector3 zaxis;
8320cad2 872 zaxis=(pDimuCM.Vect()).Unit();
7dd391ec 873
874 // --- Calculation of the polarization angle (angle between mu+ and the z axis defined above)
875 Double_t cost;
8320cad2 876 if(charge1>0) {cost = zaxis.Dot((pMu1Dimu.Vect()).Unit());}
877 else {cost = zaxis.Dot((pMu2Dimu.Vect()).Unit());}
7dd391ec 878 return cost;
879}
880
881//________________________________________________________________________
882Double_t AliAnalysisTaskDimuonCFContainerBuilder::PhiCS(Double_t px1, Double_t py1, Double_t pz1, Double_t e1,
883Double_t charge1, Double_t px2, Double_t py2, Double_t pz2, Double_t e2)
884{
885// Phi decay angle (mu+) in the Collins-Soper frame
886
8320cad2 887 TLorentzVector pMu1CM, pMu2CM, pProjCM, pTargCM, pDimuCM; // In the CM frame
888 TLorentzVector pMu1Dimu, pMu2Dimu, pProjDimu, pTargDimu; // In the dimuon rest frame
7dd391ec 889 TVector3 beta,yaxisCS, xaxisCS, zaxisCS;
890 Double_t mp=0.93827231;
891
892 // --- Fill the Lorentz vector for projectile and target in the CM frame
8320cad2 893 pProjCM.SetPxPyPzE(0.,0.,-fBeamEnergy,TMath::Sqrt(fBeamEnergy*fBeamEnergy+mp*mp));
894 pTargCM.SetPxPyPzE(0.,0.,fBeamEnergy,TMath::Sqrt(fBeamEnergy*fBeamEnergy+mp*mp));
7dd391ec 895
896 // --- Get the muons parameters in the CM frame
8320cad2 897 pMu1CM.SetPxPyPzE(px1,py1,pz1,e1);
898 pMu2CM.SetPxPyPzE(px2,py2,pz2,e2);
7dd391ec 899
900 // --- Obtain the dimuon parameters in the CM frame
8320cad2 901 pDimuCM=pMu1CM+pMu2CM;
7dd391ec 902
903 // --- Translate the dimuon parameters in the dimuon rest frame
8320cad2 904 beta=(-1./pDimuCM.E())*pDimuCM.Vect();
7dd391ec 905 if(beta.Mag()>=1) return 666.;
8320cad2 906 pMu1Dimu=pMu1CM;
907 pMu2Dimu=pMu2CM;
908 pProjDimu=pProjCM;
909 pTargDimu=pTargCM;
910 pMu1Dimu.Boost(beta);
911 pMu2Dimu.Boost(beta);
912 pProjDimu.Boost(beta);
913 pTargDimu.Boost(beta);
7dd391ec 914
915 //Debugging part -------------------------------------
916 Double_t debugProj[4]={0.,0.,0.,0.};
917 Double_t debugTarg[4]={0.,0.,0.,0.};
918 Double_t debugMu1[4]={0.,0.,0.,0.};
919 Double_t debugMu2[4]={0.,0.,0.,0.};
8320cad2 920 pMu1Dimu.GetXYZT(debugMu1);
921 pMu2Dimu.GetXYZT(debugMu2);
922 pProjDimu.GetXYZT(debugProj);
923 pTargDimu.GetXYZT(debugTarg);
7dd391ec 924 if (debugProj[0]!=debugProj[0] ||debugProj[1]!=debugProj[1] || debugProj[2]!=debugProj[2] ||debugProj[3]!=debugProj[3]) return 666;
925 if (debugTarg[0]!=debugTarg[0] ||debugTarg[1]!=debugTarg[1] || debugTarg[2]!=debugTarg[2] ||debugTarg[3]!=debugTarg[3]) return 666;
926 if (debugMu1[0]!=debugMu1[0] ||debugMu1[1]!=debugMu1[1] || debugMu1[2]!=debugMu1[2] ||debugMu1[3]!=debugMu1[3]) return 666;
927 if (debugMu2[0]!=debugMu2[0] ||debugMu2[1]!=debugMu2[1] || debugMu2[2]!=debugMu2[2] ||debugMu2[3]!=debugMu2[3]) return 666;
928 //----------------------------------------------------
929
930 // --- Determine the z axis for the CS angle
8320cad2 931 zaxisCS=(((pProjDimu.Vect()).Unit())-((pTargDimu.Vect()).Unit())).Unit();
932 yaxisCS=(((pProjDimu.Vect()).Unit()).Cross((pTargDimu.Vect()).Unit())).Unit();
7dd391ec 933 xaxisCS=(yaxisCS.Cross(zaxisCS)).Unit();
934
935 Double_t phi=0.;
936 if(charge1>0) {
8320cad2 937 phi = TMath::ATan2((pMu1Dimu.Vect()).Dot(yaxisCS),((pMu1Dimu.Vect()).Dot(xaxisCS)));
7dd391ec 938 } else {
8320cad2 939 phi = TMath::ATan2((pMu2Dimu.Vect()).Dot(yaxisCS),((pMu2Dimu.Vect()).Dot(xaxisCS)));
7dd391ec 940 }
941 if (phi>TMath::Pi()) phi=phi-TMath::Pi();
942
943 return phi;
944}
945
946//________________________________________________________________________
947Double_t AliAnalysisTaskDimuonCFContainerBuilder::PhiHE(Double_t px1, Double_t py1, Double_t pz1, Double_t e1,
948Double_t charge1, Double_t px2, Double_t py2, Double_t pz2, Double_t e2)
949{
950// Phi decay angle (mu+) in the Helicity frame
8320cad2 951 TLorentzVector pMu1Lab, pMu2Lab, pProjLab, pTargLab, pDimuLab; // In the lab. frame
952 TLorentzVector pMu1Dimu, pMu2Dimu, pProjDimu, pTargDimu; // In the dimuon rest frame
7dd391ec 953 TVector3 beta,xaxis, yaxis,zaxis;
954 Double_t mp=0.93827231;
955
956 // --- Get the muons parameters in the LAB frame
8320cad2 957 pMu1Lab.SetPxPyPzE(px1,py1,pz1,e1);
958 pMu2Lab.SetPxPyPzE(px2,py2,pz2,e2);
7dd391ec 959
960 // --- Obtain the dimuon parameters in the LAB frame
8320cad2 961 pDimuLab=pMu1Lab+pMu2Lab;
962 zaxis=(pDimuLab.Vect()).Unit();
7dd391ec 963
964 // --- Translate the muon parameters in the dimuon rest frame
8320cad2 965 beta=(-1./pDimuLab.E())*pDimuLab.Vect();
7dd391ec 966 if(beta.Mag()>=1.) return 666.;
967
8320cad2 968 pProjLab.SetPxPyPzE(0.,0.,-fBeamEnergy,TMath::Sqrt(fBeamEnergy*fBeamEnergy+mp*mp)); // proiettile
969 pTargLab.SetPxPyPzE(0.,0.,fBeamEnergy,TMath::Sqrt(fBeamEnergy*fBeamEnergy+mp*mp)); // bersaglio
7dd391ec 970
8320cad2 971 pProjDimu=pProjLab;
972 pTargDimu=pTargLab;
7dd391ec 973
8320cad2 974 pProjDimu.Boost(beta);
975 pTargDimu.Boost(beta);
7dd391ec 976
8320cad2 977 yaxis=((pProjDimu.Vect()).Cross(pTargDimu.Vect())).Unit();
7dd391ec 978 xaxis=(yaxis.Cross(zaxis)).Unit();
979
8320cad2 980 pMu1Dimu=pMu1Lab;
981 pMu2Dimu=pMu2Lab;
982 pMu1Dimu.Boost(beta);
983 pMu2Dimu.Boost(beta);
7dd391ec 984
985 //Debugging part -------------------------------------
986 Double_t debugProj[4]={0.,0.,0.,0.};
987 Double_t debugTarg[4]={0.,0.,0.,0.};
988 Double_t debugMu1[4]={0.,0.,0.,0.};
989 Double_t debugMu2[4]={0.,0.,0.,0.};
8320cad2 990 pMu1Dimu.GetXYZT(debugMu1);
991 pMu2Dimu.GetXYZT(debugMu2);
992 pProjDimu.GetXYZT(debugProj);
993 pTargDimu.GetXYZT(debugTarg);
7dd391ec 994 if (debugProj[0]!=debugProj[0] ||debugProj[1]!=debugProj[1] || debugProj[2]!=debugProj[2] ||debugProj[3]!=debugProj[3]) return 666;
995 if (debugTarg[0]!=debugTarg[0] ||debugTarg[1]!=debugTarg[1] || debugTarg[2]!=debugTarg[2] ||debugTarg[3]!=debugTarg[3]) return 666;
996 if (debugMu1[0]!=debugMu1[0] ||debugMu1[1]!=debugMu1[1] || debugMu1[2]!=debugMu1[2] ||debugMu1[3]!=debugMu1[3]) return 666;
997 if (debugMu2[0]!=debugMu2[0] ||debugMu2[1]!=debugMu2[1] || debugMu2[2]!=debugMu2[2] ||debugMu2[3]!=debugMu2[3]) return 666;
998 //----------------------------------------------------
999
1000 Double_t phi=0.;
1001 if(charge1 > 0) {
8320cad2 1002 phi = TMath::ATan2((pMu1Dimu.Vect()).Dot(yaxis),(pMu1Dimu.Vect()).Dot(xaxis));
7dd391ec 1003 } else {
8320cad2 1004 phi = TMath::ATan2((pMu2Dimu.Vect()).Dot(yaxis),(pMu2Dimu.Vect()).Dot(xaxis));
7dd391ec 1005 }
1006 return phi;
1007}
1008
1009//________________________________________________________________________
1010void AliAnalysisTaskDimuonCFContainerBuilder::Terminate(Option_t *)
1011{
1012
1013}
1014
1015#endif