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f1d945a1 | 1 | /************************************************************************** |
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 | **************************************************************************/ | |
15 | ||
929098e4 | 16 | /***************************************************************** |
17 | AliFlowEventSimple: A simple event | |
18 | for flow analysis | |
19 | ||
20 | origin: Naomi van der Kolk (kolk@nikhef.nl) | |
21 | Ante Bilandzic (anteb@nikhef.nl) | |
22 | Raimond Snellings (Raimond.Snellings@nikhef.nl) | |
23 | mods: Mikolaj Krzewicki (mikolaj.krzewicki@cern.ch) | |
24 | *****************************************************************/ | |
25 | ||
f1d945a1 | 26 | #include "Riostream.h" |
27 | #include "TObjArray.h" | |
26c4cbb9 | 28 | #include "TFile.h" |
03a02aca | 29 | #include "TList.h" |
929098e4 | 30 | #include "TTree.h" |
31 | #include "TParticle.h" | |
f1d945a1 | 32 | #include "TMath.h" |
26c4cbb9 | 33 | #include "TH1F.h" |
34 | #include "TH1D.h" | |
bc231a12 | 35 | #include "TF1.h" |
26c4cbb9 | 36 | #include "TProfile.h" |
929098e4 | 37 | #include "TParameter.h" |
c076fda8 | 38 | #include "TBrowser.h" |
f1d945a1 | 39 | #include "AliFlowVector.h" |
40 | #include "AliFlowTrackSimple.h" | |
929098e4 | 41 | #include "AliFlowTrackSimpleCuts.h" |
701f71c1 | 42 | #include "AliFlowEventSimple.h" |
7382279b | 43 | #include "TRandom.h" |
f1d945a1 | 44 | |
f1d945a1 | 45 | ClassImp(AliFlowEventSimple) |
46 | ||
47 | //----------------------------------------------------------------------- | |
46bec39c | 48 | AliFlowEventSimple::AliFlowEventSimple(): |
49 | fTrackCollection(NULL), | |
85d2ee8d | 50 | fReferenceMultiplicity(0), |
46bec39c | 51 | fNumberOfTracks(0), |
bc231a12 | 52 | fNumberOfRPs(0), |
7183fe85 | 53 | fMCReactionPlaneAngle(0.), |
929098e4 | 54 | fMCReactionPlaneAngleIsSet(kFALSE), |
bc231a12 | 55 | fAfterBurnerPrecision(0.001), |
9fa64edc | 56 | fUserModified(kFALSE), |
c076fda8 | 57 | fNumberOfTracksWrap(NULL), |
bc231a12 | 58 | fNumberOfRPsWrap(NULL), |
a12990bb | 59 | fMCReactionPlaneAngleWrap(NULL) |
46bec39c | 60 | { |
61 | cout << "AliFlowEventSimple: Default constructor to be used only by root for io" << endl; | |
62 | } | |
63 | ||
64 | //----------------------------------------------------------------------- | |
9fa64edc | 65 | AliFlowEventSimple::AliFlowEventSimple( Int_t n, |
66 | ConstructionMethod method, | |
bc231a12 | 67 | TF1* ptDist, |
68 | Double_t phiMin, | |
69 | Double_t phiMax, | |
70 | Double_t etaMin, | |
71 | Double_t etaMax): | |
9fa64edc | 72 | fTrackCollection(new TObjArray(n)), |
a1c43d26 | 73 | fReferenceMultiplicity(0), |
bc231a12 | 74 | fNumberOfTracks(0), |
75 | fNumberOfRPs(0), | |
76 | fMCReactionPlaneAngle(0.), | |
77 | fMCReactionPlaneAngleIsSet(kFALSE), | |
78 | fAfterBurnerPrecision(0.001), | |
9fa64edc | 79 | fUserModified(kFALSE), |
bc231a12 | 80 | fNumberOfTracksWrap(NULL), |
81 | fNumberOfRPsWrap(NULL), | |
82 | fMCReactionPlaneAngleWrap(NULL) | |
83 | { | |
9fa64edc | 84 | //ctor |
85 | // if second argument is set to AliFlowEventSimple::kGenerate | |
86 | // it generates n random tracks with given Pt distribution | |
87 | // (a sane default is provided), phi and eta are uniform | |
88 | ||
89 | if (method==kGenerate) | |
90 | Generate(n,ptDist,phiMin,phiMax,etaMin,etaMax); | |
f1d945a1 | 91 | } |
92 | ||
93 | //----------------------------------------------------------------------- | |
e35ddff0 | 94 | AliFlowEventSimple::AliFlowEventSimple(const AliFlowEventSimple& anEvent): |
bc231a12 | 95 | TObject(anEvent), |
96 | fTrackCollection((TObjArray*)(anEvent.fTrackCollection)->Clone()), | |
85d2ee8d | 97 | fReferenceMultiplicity(anEvent.fReferenceMultiplicity), |
e35ddff0 | 98 | fNumberOfTracks(anEvent.fNumberOfTracks), |
bc231a12 | 99 | fNumberOfRPs(anEvent.fNumberOfRPs), |
a12990bb | 100 | fMCReactionPlaneAngle(anEvent.fMCReactionPlaneAngle), |
929098e4 | 101 | fMCReactionPlaneAngleIsSet(anEvent.fMCReactionPlaneAngleIsSet), |
bc231a12 | 102 | fAfterBurnerPrecision(anEvent.fAfterBurnerPrecision), |
9fa64edc | 103 | fUserModified(anEvent.fUserModified), |
c076fda8 | 104 | fNumberOfTracksWrap(anEvent.fNumberOfTracksWrap), |
bc231a12 | 105 | fNumberOfRPsWrap(anEvent.fNumberOfRPsWrap), |
a12990bb | 106 | fMCReactionPlaneAngleWrap(anEvent.fMCReactionPlaneAngleWrap) |
f1d945a1 | 107 | { |
929098e4 | 108 | //copy constructor |
f1d945a1 | 109 | } |
110 | ||
111 | //----------------------------------------------------------------------- | |
e35ddff0 | 112 | AliFlowEventSimple& AliFlowEventSimple::operator=(const AliFlowEventSimple& anEvent) |
f1d945a1 | 113 | { |
124fb262 | 114 | //assignment operator |
701f71c1 | 115 | if (fTrackCollection) fTrackCollection->Delete(); |
124fb262 | 116 | delete fTrackCollection; |
bc231a12 | 117 | fTrackCollection = (TObjArray*)(anEvent.fTrackCollection)->Clone(); //deep copy |
85d2ee8d | 118 | fReferenceMultiplicity = anEvent.fReferenceMultiplicity; |
e35ddff0 | 119 | fNumberOfTracks = anEvent.fNumberOfTracks; |
bc231a12 | 120 | fNumberOfRPs = anEvent.fNumberOfRPs; |
a12990bb | 121 | fMCReactionPlaneAngle = anEvent.fMCReactionPlaneAngle; |
929098e4 | 122 | fMCReactionPlaneAngleIsSet = anEvent.fMCReactionPlaneAngleIsSet; |
bc231a12 | 123 | fAfterBurnerPrecision = anEvent.fAfterBurnerPrecision; |
9fa64edc | 124 | fUserModified=anEvent.fUserModified; |
929098e4 | 125 | fNumberOfTracksWrap = anEvent.fNumberOfTracksWrap; |
bc231a12 | 126 | fNumberOfRPsWrap = anEvent.fNumberOfRPsWrap; |
a12990bb | 127 | fMCReactionPlaneAngleWrap=anEvent.fMCReactionPlaneAngleWrap; |
f1d945a1 | 128 | return *this; |
f1d945a1 | 129 | } |
130 | ||
929098e4 | 131 | //----------------------------------------------------------------------- |
f1d945a1 | 132 | AliFlowEventSimple::~AliFlowEventSimple() |
133 | { | |
134 | //destructor | |
929098e4 | 135 | if (fTrackCollection) fTrackCollection->Delete(); |
136 | delete fTrackCollection; | |
7d27a354 | 137 | delete fNumberOfTracksWrap; |
138 | delete fNumberOfRPsWrap; | |
139 | delete fMCReactionPlaneAngleWrap; | |
f1d945a1 | 140 | } |
141 | ||
bc231a12 | 142 | //----------------------------------------------------------------------- |
143 | void AliFlowEventSimple::Generate(Int_t nParticles, | |
6e027e29 | 144 | TF1* ptDist, |
145 | Double_t phiMin, | |
146 | Double_t phiMax, | |
147 | Double_t etaMin, | |
148 | Double_t etaMax) | |
bc231a12 | 149 | { |
150 | //generate nParticles random tracks uniform in phi and eta | |
151 | //according to the specified pt distribution | |
6e027e29 | 152 | if (!ptDist) |
153 | { | |
154 | static TF1 ptdistribution("ptSpectra","x*TMath::Exp(-pow(0.13957*0.13957+x*x,0.5)/0.4)",0.1,10.); | |
155 | ptDist=&ptdistribution; | |
156 | } | |
9fa64edc | 157 | |
bc231a12 | 158 | for (Int_t i=0; i<nParticles; i++) |
159 | { | |
701f71c1 | 160 | AliFlowTrackSimple* track = new AliFlowTrackSimple(); |
161 | track->SetPhi( gRandom->Uniform(phiMin,phiMax) ); | |
162 | track->SetEta( gRandom->Uniform(etaMin,etaMax) ); | |
163 | track->SetPt( ptDist->GetRandom() ); | |
164 | track->SetCharge( (gRandom->Uniform()-0.5<0)?-1:1 ); | |
165 | AddTrack(track); | |
bc231a12 | 166 | } |
6e027e29 | 167 | fMCReactionPlaneAngle=gRandom->Uniform(0.0,TMath::TwoPi()); |
9fa64edc | 168 | fMCReactionPlaneAngleIsSet=kTRUE; |
169 | SetUserModified(); | |
bc231a12 | 170 | } |
171 | ||
929098e4 | 172 | //----------------------------------------------------------------------- |
f1d945a1 | 173 | AliFlowTrackSimple* AliFlowEventSimple::GetTrack(Int_t i) |
174 | { | |
175 | //get track i from collection | |
7382279b | 176 | if (i>=fNumberOfTracks) return NULL; |
124fb262 | 177 | AliFlowTrackSimple* pTrack = static_cast<AliFlowTrackSimple*>(fTrackCollection->At(i)) ; |
e35ddff0 | 178 | return pTrack; |
f1d945a1 | 179 | } |
180 | ||
7382279b | 181 | //----------------------------------------------------------------------- |
182 | void AliFlowEventSimple::AddTrack( AliFlowTrackSimple* track ) | |
183 | { | |
7d27a354 | 184 | //add a track, delete the old one if necessary |
185 | if (fNumberOfTracks < fTrackCollection->GetEntriesFast()) | |
186 | { | |
187 | TObject* o = fTrackCollection->At(fNumberOfTracks); | |
188 | if (o) delete o; | |
189 | } | |
190 | fTrackCollection->AddAtAndExpand(track,fNumberOfTracks); | |
7382279b | 191 | fNumberOfTracks++; |
192 | } | |
193 | ||
929098e4 | 194 | //----------------------------------------------------------------------- |
195 | AliFlowVector AliFlowEventSimple::GetQ(Int_t n, TList *weightsList, Bool_t usePhiWeights, Bool_t usePtWeights, Bool_t useEtaWeights) | |
f1d945a1 | 196 | { |
929098e4 | 197 | // calculate Q-vector in harmonic n without weights (default harmonic n=2) |
e35ddff0 | 198 | Double_t dQX = 0.; |
199 | Double_t dQY = 0.; | |
200 | AliFlowVector vQ; | |
201 | vQ.Set(0.,0.); | |
929098e4 | 202 | |
9825d4a9 | 203 | Int_t iOrder = n; |
8eca5d19 | 204 | Double_t sumOfWeights = 0.; |
44e060e0 | 205 | Double_t dPhi = 0.; |
206 | Double_t dPt = 0.; | |
207 | Double_t dEta = 0.; | |
208 | Double_t dWeight = 1.; | |
929098e4 | 209 | |
26c4cbb9 | 210 | AliFlowTrackSimple* pTrack = NULL; |
929098e4 | 211 | |
44e060e0 | 212 | Int_t nBinsPhi = 0; |
213 | Double_t dBinWidthPt = 0.; | |
214 | Double_t dPtMin = 0.; | |
215 | Double_t dBinWidthEta = 0.; | |
216 | Double_t dEtaMin = 0.; | |
929098e4 | 217 | |
44e060e0 | 218 | Double_t wPhi = 1.; // weight Phi |
219 | Double_t wPt = 1.; // weight Pt | |
220 | Double_t wEta = 1.; // weight Eta | |
929098e4 | 221 | |
03a02aca | 222 | TH1F *phiWeights = NULL; |
ae733b3b | 223 | TH1D *ptWeights = NULL; |
03a02aca | 224 | TH1D *etaWeights = NULL; |
929098e4 | 225 | |
03a02aca | 226 | if(weightsList) |
26c4cbb9 | 227 | { |
929098e4 | 228 | if(usePhiWeights) |
229 | { | |
230 | phiWeights = dynamic_cast<TH1F *>(weightsList->FindObject("phi_weights")); | |
231 | if(phiWeights) nBinsPhi = phiWeights->GetNbinsX(); | |
232 | } | |
233 | if(usePtWeights) | |
03a02aca | 234 | { |
929098e4 | 235 | ptWeights = dynamic_cast<TH1D *>(weightsList->FindObject("pt_weights")); |
236 | if(ptWeights) | |
237 | { | |
238 | dBinWidthPt = ptWeights->GetBinWidth(1); // assuming that all bins have the same width | |
239 | dPtMin = (ptWeights->GetXaxis())->GetXmin(); | |
240 | } | |
241 | } | |
242 | if(useEtaWeights) | |
03a02aca | 243 | { |
929098e4 | 244 | etaWeights = dynamic_cast<TH1D *>(weightsList->FindObject("eta_weights")); |
245 | if(etaWeights) | |
246 | { | |
247 | dBinWidthEta = etaWeights->GetBinWidth(1); // assuming that all bins have the same width | |
248 | dEtaMin = (etaWeights->GetXaxis())->GetXmin(); | |
249 | } | |
250 | } | |
03a02aca | 251 | } // end of if(weightsList) |
929098e4 | 252 | |
253 | // loop over tracks | |
254 | for(Int_t i=0; i<fNumberOfTracks; i++) | |
26c4cbb9 | 255 | { |
124fb262 | 256 | pTrack = (AliFlowTrackSimple*)fTrackCollection->At(i); |
929098e4 | 257 | if(pTrack) |
f1d945a1 | 258 | { |
929098e4 | 259 | if(pTrack->InRPSelection()) |
260 | { | |
261 | dPhi = pTrack->Phi(); | |
262 | dPt = pTrack->Pt(); | |
263 | dEta = pTrack->Eta(); | |
701f71c1 | 264 | dWeight = pTrack->Weight(); |
929098e4 | 265 | |
266 | // determine Phi weight: (to be improved, I should here only access it + the treatment of gaps in the if statement) | |
267 | if(phiWeights && nBinsPhi) | |
268 | { | |
269 | wPhi = phiWeights->GetBinContent(1+(Int_t)(TMath::Floor(dPhi*nBinsPhi/TMath::TwoPi()))); | |
270 | } | |
271 | // determine v'(pt) weight: | |
272 | if(ptWeights && dBinWidthPt) | |
273 | { | |
274 | wPt=ptWeights->GetBinContent(1+(Int_t)(TMath::Floor((dPt-dPtMin)/dBinWidthPt))); | |
275 | } | |
276 | // determine v'(eta) weight: | |
277 | if(etaWeights && dBinWidthEta) | |
278 | { | |
279 | wEta=etaWeights->GetBinContent(1+(Int_t)(TMath::Floor((dEta-dEtaMin)/dBinWidthEta))); | |
280 | } | |
281 | ||
282 | // building up the weighted Q-vector: | |
44e060e0 | 283 | dQX += dWeight*wPhi*wPt*wEta*TMath::Cos(iOrder*dPhi); |
284 | dQY += dWeight*wPhi*wPt*wEta*TMath::Sin(iOrder*dPhi); | |
929098e4 | 285 | |
286 | // weighted multiplicity: | |
8eca5d19 | 287 | sumOfWeights += dWeight*wPhi*wPt*wEta; |
929098e4 | 288 | |
289 | } // end of if (pTrack->InRPSelection()) | |
290 | } // end of if (pTrack) | |
291 | else | |
292 | { | |
293 | cerr << "no particle!!!"<<endl; | |
294 | } | |
ae733b3b | 295 | } // loop over particles |
929098e4 | 296 | |
e35ddff0 | 297 | vQ.Set(dQX,dQY); |
8eca5d19 | 298 | vQ.SetMult(sumOfWeights); |
929098e4 | 299 | |
e35ddff0 | 300 | return vQ; |
929098e4 | 301 | |
5fef318d | 302 | } |
303 | ||
929098e4 | 304 | //----------------------------------------------------------------------- |
305 | void AliFlowEventSimple::Get2Qsub(AliFlowVector* Qarray, Int_t n, TList *weightsList, Bool_t usePhiWeights, Bool_t usePtWeights, Bool_t useEtaWeights) | |
395fadba | 306 | { |
929098e4 | 307 | |
308 | // calculate Q-vector in harmonic n without weights (default harmonic n=2) | |
395fadba | 309 | Double_t dQX = 0.; |
310 | Double_t dQY = 0.; | |
929098e4 | 311 | |
395fadba | 312 | Int_t iOrder = n; |
8eca5d19 | 313 | Double_t sumOfWeights = 0.; |
395fadba | 314 | Double_t dPhi = 0.; |
315 | Double_t dPt = 0.; | |
316 | Double_t dEta = 0.; | |
44e060e0 | 317 | Double_t dWeight = 1.; |
929098e4 | 318 | |
395fadba | 319 | AliFlowTrackSimple* pTrack = NULL; |
929098e4 | 320 | |
44e060e0 | 321 | Int_t iNbinsPhiSub0 = 0; |
322 | Int_t iNbinsPhiSub1 = 0; | |
395fadba | 323 | Double_t dBinWidthPt = 0.; |
324 | Double_t dPtMin = 0.; | |
325 | Double_t dBinWidthEta= 0.; | |
326 | Double_t dEtaMin = 0.; | |
929098e4 | 327 | |
328 | Double_t dWphi = 1.; // weight Phi | |
329 | Double_t dWpt = 1.; // weight Pt | |
330 | Double_t dWeta = 1.; // weight Eta | |
331 | ||
44e060e0 | 332 | TH1F* phiWeightsSub0 = NULL; |
333 | TH1F* phiWeightsSub1 = NULL; | |
29195b69 | 334 | TH1D* ptWeights = NULL; |
335 | TH1D* etaWeights = NULL; | |
929098e4 | 336 | |
337 | if(weightsList) | |
338 | { | |
339 | if(usePhiWeights) | |
340 | { | |
44e060e0 | 341 | phiWeightsSub0 = dynamic_cast<TH1F *>(weightsList->FindObject("phi_weights_sub0")); |
44e060e0 | 342 | if(phiWeightsSub0) { |
13ff9ccd | 343 | iNbinsPhiSub0 = phiWeightsSub0->GetNbinsX(); |
44e060e0 | 344 | } |
13ff9ccd | 345 | phiWeightsSub1 = dynamic_cast<TH1F *>(weightsList->FindObject("phi_weights_sub1")); |
44e060e0 | 346 | if(phiWeightsSub1) { |
13ff9ccd | 347 | iNbinsPhiSub1 = phiWeightsSub1->GetNbinsX(); |
29195b69 | 348 | } |
929098e4 | 349 | } |
350 | if(usePtWeights) | |
351 | { | |
29195b69 | 352 | ptWeights = dynamic_cast<TH1D *>(weightsList->FindObject("pt_weights")); |
929098e4 | 353 | if(ptWeights) |
354 | { | |
355 | dBinWidthPt = ptWeights->GetBinWidth(1); // assuming that all bins have the same width | |
356 | dPtMin = (ptWeights->GetXaxis())->GetXmin(); | |
357 | } | |
358 | } | |
359 | if(useEtaWeights) | |
360 | { | |
361 | etaWeights = dynamic_cast<TH1D *>(weightsList->FindObject("eta_weights")); | |
362 | if(etaWeights) | |
363 | { | |
364 | dBinWidthEta = etaWeights->GetBinWidth(1); // assuming that all bins have the same width | |
365 | dEtaMin = (etaWeights->GetXaxis())->GetXmin(); | |
366 | } | |
367 | } | |
395fadba | 368 | } // end of if(weightsList) |
929098e4 | 369 | |
b125a454 | 370 | //loop over the two subevents |
929098e4 | 371 | for (Int_t s=0; s<2; s++) |
372 | { | |
373 | // loop over tracks | |
374 | for(Int_t i=0; i<fNumberOfTracks; i++) | |
375 | { | |
124fb262 | 376 | pTrack = (AliFlowTrackSimple*)fTrackCollection->At(i); |
929098e4 | 377 | if(pTrack) |
378 | { | |
379 | if(pTrack->InRPSelection()) | |
380 | { | |
381 | if (pTrack->InSubevent(s)) | |
382 | { | |
44e060e0 | 383 | dPhi = pTrack->Phi(); |
384 | dPt = pTrack->Pt(); | |
385 | dEta = pTrack->Eta(); | |
386 | dWeight = pTrack->Weight(); | |
929098e4 | 387 | |
388 | // determine Phi weight: (to be improved, I should here only access it + the treatment of gaps in the if statement) | |
13ff9ccd | 389 | //subevent 0 |
390 | if(s == 0) { | |
391 | if(phiWeightsSub0 && iNbinsPhiSub0) { | |
392 | Int_t phiBin = 1+(Int_t)(TMath::Floor(dPhi*iNbinsPhiSub0/TMath::TwoPi())); | |
393 | //use the phi value at the center of the bin | |
394 | dPhi = phiWeightsSub0->GetBinCenter(phiBin); | |
395 | dWphi = phiWeightsSub0->GetBinContent(phiBin); | |
396 | } | |
397 | } | |
398 | //subevent 1 | |
399 | else if (s == 1) { | |
400 | if(phiWeightsSub1 && iNbinsPhiSub1) { | |
401 | Int_t phiBin = 1+(Int_t)(TMath::Floor(dPhi*iNbinsPhiSub1/TMath::TwoPi())); | |
402 | //use the phi value at the center of the bin | |
403 | dPhi = phiWeightsSub1->GetBinCenter(phiBin); | |
404 | dWphi = phiWeightsSub1->GetBinContent(phiBin); | |
44e060e0 | 405 | } |
406 | } | |
13ff9ccd | 407 | |
929098e4 | 408 | // determine v'(pt) weight: |
409 | if(ptWeights && dBinWidthPt) | |
410 | { | |
411 | dWpt=ptWeights->GetBinContent(1+(Int_t)(TMath::Floor((dPt-dPtMin)/dBinWidthPt))); | |
412 | } | |
44e060e0 | 413 | |
929098e4 | 414 | // determine v'(eta) weight: |
415 | if(etaWeights && dBinWidthEta) | |
416 | { | |
417 | dWeta=etaWeights->GetBinContent(1+(Int_t)(TMath::Floor((dEta-dEtaMin)/dBinWidthEta))); | |
418 | } | |
419 | ||
420 | // building up the weighted Q-vector: | |
44e060e0 | 421 | dQX += dWeight*dWphi*dWpt*dWeta*TMath::Cos(iOrder*dPhi); |
422 | dQY += dWeight*dWphi*dWpt*dWeta*TMath::Sin(iOrder*dPhi); | |
929098e4 | 423 | |
424 | // weighted multiplicity: | |
8eca5d19 | 425 | sumOfWeights+=dWeight*dWphi*dWpt*dWeta; |
929098e4 | 426 | |
427 | } // end of subevent | |
428 | } // end of if (pTrack->InRPSelection()) | |
29195b69 | 429 | } // end of if (pTrack) |
929098e4 | 430 | else |
431 | { | |
432 | cerr << "no particle!!!"<<endl; | |
433 | } | |
29195b69 | 434 | } // loop over particles |
435 | Qarray[s].Set(dQX,dQY); | |
8eca5d19 | 436 | Qarray[s].SetMult(sumOfWeights); |
29195b69 | 437 | //reset |
8eca5d19 | 438 | sumOfWeights = 0.; |
29195b69 | 439 | dQX = 0.; |
440 | dQY = 0.; | |
441 | } | |
929098e4 | 442 | |
395fadba | 443 | } |
444 | ||
445 | ||
929098e4 | 446 | //----------------------------------------------------------------------- |
c076fda8 | 447 | void AliFlowEventSimple::Print(Option_t *option) const |
448 | { | |
449 | // -*-*-*-*-*Print some global quantities for this histogram collection class *-*-*-*-*-*-*-* | |
450 | // =============================================== | |
451 | // printf( "TH1.Print Name = %s, Entries= %d, Total sum= %g\n",GetName(),Int_t(fEntries),GetSumOfWeights()); | |
f873707d | 452 | printf( "Class.Print Name = %s, #tracks= %d, Number of RPs= %d, MC EventPlaneAngle= %f\n", |
bc231a12 | 453 | GetName(),fNumberOfTracks, fNumberOfRPs, fMCReactionPlaneAngle ); |
c076fda8 | 454 | |
b4dba88d | 455 | TString optionstr(option); |
456 | if (!optionstr.Contains("all")) return; | |
929098e4 | 457 | if (fTrackCollection) |
458 | { | |
c076fda8 | 459 | fTrackCollection->Print(option); |
460 | } | |
929098e4 | 461 | else |
462 | { | |
c076fda8 | 463 | printf( "Empty track collection \n"); |
464 | } | |
465 | } | |
466 | ||
929098e4 | 467 | //----------------------------------------------------------------------- |
468 | void AliFlowEventSimple::Browse(TBrowser *b) | |
c076fda8 | 469 | { |
cc0afcfc | 470 | //browse in TBrowser |
c076fda8 | 471 | if (!b) return; |
929098e4 | 472 | if (!fNumberOfTracksWrap) |
473 | { | |
c076fda8 | 474 | fNumberOfTracksWrap = new TParameter<int>("fNumberOfTracks", fNumberOfTracks); |
475 | b->Add(fNumberOfTracksWrap); | |
476 | } | |
bc231a12 | 477 | if (!fNumberOfRPsWrap) |
929098e4 | 478 | { |
bc231a12 | 479 | fNumberOfRPsWrap = new TParameter<int>("fNumberOfRPs", fNumberOfRPs); |
480 | b->Add(fNumberOfRPsWrap); | |
c076fda8 | 481 | } |
929098e4 | 482 | if (!fMCReactionPlaneAngleWrap) |
483 | { | |
7183fe85 | 484 | fMCReactionPlaneAngleWrap = new TParameter<double>(" fMCReactionPlaneAngle", fMCReactionPlaneAngle); |
a12990bb | 485 | b->Add( fMCReactionPlaneAngleWrap); |
486 | } | |
c076fda8 | 487 | if (fTrackCollection) b->Add(fTrackCollection,"AliFlowTracksSimple"); |
488 | } | |
489 | ||
929098e4 | 490 | //----------------------------------------------------------------------- |
491 | AliFlowEventSimple::AliFlowEventSimple( TTree* inputTree, | |
492 | const AliFlowTrackSimpleCuts* rpCuts, | |
493 | const AliFlowTrackSimpleCuts* poiCuts): | |
494 | fTrackCollection(NULL), | |
85d2ee8d | 495 | fReferenceMultiplicity(0), |
929098e4 | 496 | fNumberOfTracks(0), |
bc231a12 | 497 | fNumberOfRPs(0), |
929098e4 | 498 | fMCReactionPlaneAngle(0.), |
499 | fMCReactionPlaneAngleIsSet(kFALSE), | |
bc231a12 | 500 | fAfterBurnerPrecision(0.001), |
9fa64edc | 501 | fUserModified(kFALSE), |
929098e4 | 502 | fNumberOfTracksWrap(NULL), |
bc231a12 | 503 | fNumberOfRPsWrap(NULL), |
929098e4 | 504 | fMCReactionPlaneAngleWrap(NULL) |
505 | { | |
506 | //constructor, fills the event from a TTree of kinematic.root files | |
507 | //applies RP and POI cuts, tags the tracks | |
508 | ||
509 | Int_t numberOfInputTracks = inputTree->GetEntries() ; | |
510 | fTrackCollection = new TObjArray(numberOfInputTracks/2); | |
511 | ||
512 | TParticle* pParticle = new TParticle(); | |
513 | inputTree->SetBranchAddress("Particles",&pParticle); | |
514 | ||
515 | Int_t iSelParticlesPOI = 0; | |
516 | ||
517 | for (Int_t i=0; i<numberOfInputTracks; i++) | |
518 | { | |
519 | inputTree->GetEntry(i); //get input particle | |
520 | ||
521 | if (!pParticle) continue; //no particle | |
522 | if (!pParticle->IsPrimary()) continue; | |
523 | ||
7382279b | 524 | Bool_t rpOK = rpCuts->PassesCuts(pParticle); |
525 | Bool_t poiOK = poiCuts->PassesCuts(pParticle); | |
929098e4 | 526 | |
7382279b | 527 | if (rpOK || poiOK) |
929098e4 | 528 | { |
529 | AliFlowTrackSimple* pTrack = new AliFlowTrackSimple(pParticle); | |
530 | ||
531 | //marking the particles used for int. flow: | |
7382279b | 532 | if(rpOK) |
929098e4 | 533 | { |
534 | pTrack->SetForRPSelection(kTRUE); | |
bc231a12 | 535 | fNumberOfRPs++; |
929098e4 | 536 | } |
537 | //marking the particles used for diff. flow: | |
7382279b | 538 | if(poiOK) |
929098e4 | 539 | { |
540 | pTrack->SetForPOISelection(kTRUE); | |
541 | iSelParticlesPOI++; | |
542 | } | |
543 | //adding a particles which were used either for int. or diff. flow to the list | |
124fb262 | 544 | AddTrack(pTrack); |
929098e4 | 545 | } |
546 | }//for i | |
547 | delete pParticle; | |
548 | } | |
549 | ||
550 | //_____________________________________________________________________________ | |
551 | void AliFlowEventSimple::CloneTracks(Int_t n) | |
552 | { | |
553 | //clone every track n times to add non-flow | |
34b15925 | 554 | if (n<=0) return; //no use to clone stuff zero or less times |
bc231a12 | 555 | Int_t ntracks = fNumberOfTracks; |
556 | fTrackCollection->Expand((n+1)*fNumberOfTracks); | |
557 | for (Int_t i=0; i<n; i++) | |
929098e4 | 558 | { |
bc231a12 | 559 | for (Int_t itrack=0; itrack<ntracks; itrack++) |
929098e4 | 560 | { |
561 | AliFlowTrackSimple* track = dynamic_cast<AliFlowTrackSimple*>(fTrackCollection->At(itrack)); | |
562 | if (!track) continue; | |
bc231a12 | 563 | AddTrack(static_cast<AliFlowTrackSimple*>(track->Clone())); |
929098e4 | 564 | } |
565 | } | |
9fa64edc | 566 | SetUserModified(); |
929098e4 | 567 | } |
7382279b | 568 | |
569 | //_____________________________________________________________________________ | |
570 | void AliFlowEventSimple::ResolutionPt(Double_t res) | |
571 | { | |
572 | //smear pt of all tracks by gaussian with sigma=res | |
573 | for (Int_t i=0; i<fNumberOfTracks; i++) | |
574 | { | |
575 | AliFlowTrackSimple* track = static_cast<AliFlowTrackSimple*>(fTrackCollection->At(i)); | |
124fb262 | 576 | if (track) track->ResolutionPt(res); |
7382279b | 577 | } |
9fa64edc | 578 | SetUserModified(); |
7382279b | 579 | } |
124fb262 | 580 | |
581 | //_____________________________________________________________________________ | |
34b15925 | 582 | void AliFlowEventSimple::TagSubeventsInEta( Double_t etaMinA, |
583 | Double_t etaMaxA, | |
584 | Double_t etaMinB, | |
585 | Double_t etaMaxB ) | |
124fb262 | 586 | { |
587 | //Flag two subevents in given eta ranges | |
588 | for (Int_t i=0; i<fNumberOfTracks; i++) | |
589 | { | |
590 | AliFlowTrackSimple* track = static_cast<AliFlowTrackSimple*>(fTrackCollection->At(i)); | |
3ca4688a | 591 | if (!track) continue; |
592 | track->ResetSubEventTags(); | |
124fb262 | 593 | Double_t eta=track->Eta(); |
594 | if (eta >= etaMinA && eta <= etaMaxA) track->SetForSubevent(0); | |
595 | if (eta >= etaMinB && eta <= etaMaxB) track->SetForSubevent(1); | |
596 | } | |
597 | } | |
598 | ||
076df7bf | 599 | //_____________________________________________________________________________ |
600 | void AliFlowEventSimple::TagSubeventsByCharge() | |
601 | { | |
602 | //Flag two subevents in given eta ranges | |
603 | for (Int_t i=0; i<fNumberOfTracks; i++) | |
604 | { | |
605 | AliFlowTrackSimple* track = static_cast<AliFlowTrackSimple*>(fTrackCollection->At(i)); | |
3ca4688a | 606 | if (!track) continue; |
607 | track->ResetSubEventTags(); | |
076df7bf | 608 | Int_t charge=track->Charge(); |
609 | if (charge<0) track->SetForSubevent(0); | |
610 | if (charge>0) track->SetForSubevent(1); | |
611 | } | |
612 | } | |
613 | ||
bc231a12 | 614 | //_____________________________________________________________________________ |
34b15925 | 615 | void AliFlowEventSimple::AddV1( Double_t v1 ) |
bc231a12 | 616 | { |
617 | //add v2 to all tracks wrt the reaction plane angle | |
618 | for (Int_t i=0; i<fNumberOfTracks; i++) | |
619 | { | |
620 | AliFlowTrackSimple* track = static_cast<AliFlowTrackSimple*>(fTrackCollection->At(i)); | |
621 | if (track) track->AddV1(v1, fMCReactionPlaneAngle, fAfterBurnerPrecision); | |
622 | } | |
9fa64edc | 623 | SetUserModified(); |
bc231a12 | 624 | } |
625 | ||
124fb262 | 626 | //_____________________________________________________________________________ |
34b15925 | 627 | void AliFlowEventSimple::AddV2( Double_t v2 ) |
124fb262 | 628 | { |
244c607a | 629 | //add v2 to all tracks wrt the reaction plane angle |
124fb262 | 630 | for (Int_t i=0; i<fNumberOfTracks; i++) |
631 | { | |
632 | AliFlowTrackSimple* track = static_cast<AliFlowTrackSimple*>(fTrackCollection->At(i)); | |
bc231a12 | 633 | if (track) track->AddV2(v2, fMCReactionPlaneAngle, fAfterBurnerPrecision); |
634 | } | |
9fa64edc | 635 | SetUserModified(); |
bc231a12 | 636 | } |
637 | ||
638 | //_____________________________________________________________________________ | |
54089829 | 639 | void AliFlowEventSimple::AddV3( Double_t v3 ) |
640 | { | |
641 | //add v3 to all tracks wrt the reaction plane angle | |
642 | for (Int_t i=0; i<fNumberOfTracks; i++) | |
643 | { | |
644 | AliFlowTrackSimple* track = static_cast<AliFlowTrackSimple*>(fTrackCollection->At(i)); | |
645 | if (track) track->AddV3(v3, fMCReactionPlaneAngle, fAfterBurnerPrecision); | |
646 | } | |
647 | SetUserModified(); | |
648 | } | |
649 | ||
650 | //_____________________________________________________________________________ | |
34b15925 | 651 | void AliFlowEventSimple::AddV4( Double_t v4 ) |
bc231a12 | 652 | { |
653 | //add v4 to all tracks wrt the reaction plane angle | |
654 | for (Int_t i=0; i<fNumberOfTracks; i++) | |
655 | { | |
656 | AliFlowTrackSimple* track = static_cast<AliFlowTrackSimple*>(fTrackCollection->At(i)); | |
657 | if (track) track->AddV4(v4, fMCReactionPlaneAngle, fAfterBurnerPrecision); | |
658 | } | |
9fa64edc | 659 | SetUserModified(); |
bc231a12 | 660 | } |
661 | ||
662 | //_____________________________________________________________________________ | |
1a80f9f6 | 663 | void AliFlowEventSimple::AddV5( Double_t v5 ) |
664 | { | |
665 | //add v4 to all tracks wrt the reaction plane angle | |
666 | for (Int_t i=0; i<fNumberOfTracks; i++) | |
667 | { | |
668 | AliFlowTrackSimple* track = static_cast<AliFlowTrackSimple*>(fTrackCollection->At(i)); | |
669 | if (track) track->AddV5(v5, fMCReactionPlaneAngle, fAfterBurnerPrecision); | |
670 | } | |
671 | SetUserModified(); | |
672 | } | |
673 | ||
674 | //_____________________________________________________________________________ | |
675 | void AliFlowEventSimple::AddFlow( Double_t v1, Double_t v2, Double_t v3, Double_t v4, Double_t v5, | |
676 | Double_t rp1, Double_t rp2, Double_t rp3, Double_t rp4, Double_t rp5 ) | |
677 | { | |
678 | //add flow to all tracks wrt the reaction plane angle, for all harmonic separate angle | |
679 | for (Int_t i=0; i<fNumberOfTracks; i++) | |
680 | { | |
681 | AliFlowTrackSimple* track = static_cast<AliFlowTrackSimple*>(fTrackCollection->At(i)); | |
682 | if (track) track->AddFlow(v1,v2,v3,v4,v5,rp1,rp2,rp3,rp4,rp5,fAfterBurnerPrecision); | |
683 | } | |
684 | SetUserModified(); | |
685 | } | |
686 | ||
687 | //_____________________________________________________________________________ | |
688 | void AliFlowEventSimple::AddFlow( Double_t v1, Double_t v2, Double_t v3, Double_t v4, Double_t v5 ) | |
bc231a12 | 689 | { |
690 | //add flow to all tracks wrt the reaction plane angle | |
691 | for (Int_t i=0; i<fNumberOfTracks; i++) | |
692 | { | |
693 | AliFlowTrackSimple* track = static_cast<AliFlowTrackSimple*>(fTrackCollection->At(i)); | |
1a80f9f6 | 694 | if (track) track->AddFlow(v1,v2,v3,v4,v5,fMCReactionPlaneAngle, fAfterBurnerPrecision); |
124fb262 | 695 | } |
9fa64edc | 696 | SetUserModified(); |
124fb262 | 697 | } |
698 | ||
99ff691b | 699 | //_____________________________________________________________________________ |
700 | void AliFlowEventSimple::AddV2( TF1* ptDepV2 ) | |
701 | { | |
702 | //add v2 to all tracks wrt the reaction plane angle | |
703 | for (Int_t i=0; i<fNumberOfTracks; i++) | |
704 | { | |
705 | AliFlowTrackSimple* track = static_cast<AliFlowTrackSimple*>(fTrackCollection->At(i)); | |
2a745a5f | 706 | if (!track) continue; |
99ff691b | 707 | Double_t v2 = ptDepV2->Eval(track->Pt()); |
2a745a5f | 708 | track->AddV2(v2, fMCReactionPlaneAngle, fAfterBurnerPrecision); |
99ff691b | 709 | } |
710 | SetUserModified(); | |
711 | } | |
712 | ||
dd91b595 | 713 | //_____________________________________________________________________________ |
cc0afcfc | 714 | void AliFlowEventSimple::TagRP( const AliFlowTrackSimpleCuts* cuts ) |
dd91b595 | 715 | { |
716 | //tag tracks as reference particles (RPs) | |
717 | for (Int_t i=0; i<fNumberOfTracks; i++) | |
718 | { | |
719 | AliFlowTrackSimple* track = static_cast<AliFlowTrackSimple*>(fTrackCollection->At(i)); | |
720 | if (!track) continue; | |
701f71c1 | 721 | Bool_t pass=cuts->PassesCuts(track); |
e0da66a2 | 722 | Bool_t rpTrack=track->InRPSelection(); |
701f71c1 | 723 | if (pass) |
e0da66a2 | 724 | { |
725 | if (!rpTrack) fNumberOfRPs++; //only increase if not already tagged | |
726 | } | |
701f71c1 | 727 | else |
e0da66a2 | 728 | { |
729 | if (rpTrack) fNumberOfRPs--; //only decrease if detagging | |
730 | } | |
731 | track->SetForRPSelection(pass); | |
dd91b595 | 732 | } |
733 | } | |
734 | ||
735 | //_____________________________________________________________________________ | |
cc0afcfc | 736 | void AliFlowEventSimple::TagPOI( const AliFlowTrackSimpleCuts* cuts ) |
dd91b595 | 737 | { |
738 | //tag tracks as particles of interest (POIs) | |
739 | for (Int_t i=0; i<fNumberOfTracks; i++) | |
740 | { | |
741 | AliFlowTrackSimple* track = static_cast<AliFlowTrackSimple*>(fTrackCollection->At(i)); | |
742 | if (!track) continue; | |
701f71c1 | 743 | Bool_t pass=cuts->PassesCuts(track); |
744 | track->SetForPOISelection(pass); | |
dd91b595 | 745 | } |
746 | } | |
747 | ||
34b15925 | 748 | //_____________________________________________________________________________ |
749 | void AliFlowEventSimple::DefineDeadZone( Double_t etaMin, | |
750 | Double_t etaMax, | |
751 | Double_t phiMin, | |
752 | Double_t phiMax ) | |
753 | { | |
754 | //mark tracks in given eta-phi region as dead | |
755 | //by resetting the flow bits | |
756 | for (Int_t i=0; i<fNumberOfTracks; i++) | |
757 | { | |
758 | AliFlowTrackSimple* track = static_cast<AliFlowTrackSimple*>(fTrackCollection->At(i)); | |
759 | Double_t eta = track->Eta(); | |
760 | Double_t phi = track->Phi(); | |
761 | if (eta>etaMin && eta<etaMax && phi>phiMin && phi<phiMax) | |
1a43aca9 | 762 | { |
763 | if (track->InRPSelection()) fNumberOfRPs--; | |
34b15925 | 764 | track->ResetFlowTags(); |
1a43aca9 | 765 | } |
34b15925 | 766 | } |
767 | } | |
768 | ||
769 | //_____________________________________________________________________________ | |
770 | Int_t AliFlowEventSimple::CleanUpDeadTracks() | |
771 | { | |
772 | //remove tracks that have no flow tags set and cleanup the container | |
65ef7d1a | 773 | //returns number of cleaned tracks |
774 | Int_t ncleaned=0; | |
34b15925 | 775 | for (Int_t i=0; i<fNumberOfTracks; i++) |
776 | { | |
777 | AliFlowTrackSimple* track = static_cast<AliFlowTrackSimple*>(fTrackCollection->At(i)); | |
cd62a2a8 | 778 | if (!track) continue; |
7d27a354 | 779 | if (track->IsDead()) {delete track;track=NULL;ncleaned++;} |
34b15925 | 780 | } |
781 | fTrackCollection->Compress(); //clean up empty slots | |
7d27a354 | 782 | fNumberOfTracks-=ncleaned; //update number of tracks |
65ef7d1a | 783 | return ncleaned; |
34b15925 | 784 | } |
99ff691b | 785 | |
786 | //_____________________________________________________________________________ | |
787 | TF1* AliFlowEventSimple::SimplePtDepV2() | |
788 | { | |
789 | //return a standard pt dependent v2 formula, user has to clean up! | |
790 | return new TF1("StandardPtDepV2","((x<1.0)*(0.05/1.0)*x+(x>=1.0)*0.05)"); | |
791 | } | |
792 | ||
793 | //_____________________________________________________________________________ | |
794 | TF1* AliFlowEventSimple::SimplePtSpectrum() | |
795 | { | |
796 | //return a standard pt spectrum, user has to clean up! | |
797 | return new TF1("StandardPtSpectrum","x*TMath::Exp(-pow(0.13957*0.13957+x*x,0.5)/0.4)",0.1,10.); | |
798 | } | |
7d27a354 | 799 | |
800 | //_____________________________________________________________________________ | |
801 | void AliFlowEventSimple::ClearFast() | |
802 | { | |
803 | //clear the counter without deleting allocated objects so they can be reused | |
804 | fReferenceMultiplicity = 0; | |
805 | fNumberOfTracks = 0; | |
806 | fNumberOfRPs = 0; | |
807 | fMCReactionPlaneAngle = 0.0; | |
808 | fMCReactionPlaneAngleIsSet = kFALSE; | |
809 | fAfterBurnerPrecision = 0.001; | |
810 | fUserModified = kFALSE; | |
811 | } |