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72c0a987 | 1 | // $Id$ |
2 | ||
3 | //************************************************************************** | |
4 | //* This file is property of and copyright by the ALICE Project * | |
5 | //* ALICE Experiment at CERN, All rights reserved. * | |
6 | //* * | |
7 | //* Primary Authors: Matthias Richter <Matthias.Richter@ift.uib.no> * | |
8 | //* Sedat Altinpinar <Sedat.Altinpinar@cern.ch> * | |
9 | //* Hege Erdal <hege.erdal@gmail.com> * | |
10 | //* * | |
11 | //* Permission to use, copy, modify and distribute this software and its * | |
12 | //* documentation strictly for non-commercial purposes is hereby granted * | |
13 | //* without fee, provided that the above copyright notice appears in all * | |
14 | //* copies and that both the copyright notice and this permission notice * | |
15 | //* appear in the supporting documentation. The authors make no claims * | |
16 | //* about the suitability of this software for any purpose. It is * | |
17 | //* provided "as is" without express or implied warranty. * | |
18 | //************************************************************************** | |
19 | ||
20 | /// @file AliDxHFEParticleSelectionD0.cxx | |
21 | /// @author Sedat Altinpinar, Hege Erdal, Matthias Richter | |
22 | /// @date 2012-03-19 | |
23 | /// @brief D0 selection for D0-HFE correlation | |
24 | /// | |
25 | ||
26 | #include "AliDxHFEParticleSelectionD0.h" | |
27 | #include "AliVParticle.h" | |
9535cec9 | 28 | //#include "AliAnalysisCuts.h" // required dependency libANALYSISalice.so |
29 | //#include "AliFlowTrackSimple.h" // required dependency libPWGflowBase.so | |
30 | //#include "AliFlowCandidateTrack.h" // required dependency libPWGflowTasks.so | |
31 | //#include "AliCFContainer.h" // required dependency libCORRFW.so | |
93fcaf9f | 32 | #include "AliAODRecoDecayHF2Prong.h" // libPWGHFvertexingHF |
9535cec9 | 33 | #include "AliRDHFCutsD0toKpi.h" |
72c0a987 | 34 | #include "TObjArray.h" |
93fcaf9f | 35 | #include "THnSparse.h" |
dfe96b90 | 36 | #include "AliReducedParticle.h" |
93fcaf9f | 37 | #include "TAxis.h" |
9535cec9 | 38 | #include "TString.h" |
93fcaf9f | 39 | #include <iostream> |
40 | #include <cerrno> | |
41 | #include <memory> | |
72c0a987 | 42 | |
9535cec9 | 43 | using namespace std; |
44 | ||
72c0a987 | 45 | /// ROOT macro for the implementation of ROOT specific class methods |
46 | ClassImp(AliDxHFEParticleSelectionD0) | |
47 | ||
48 | AliDxHFEParticleSelectionD0::AliDxHFEParticleSelectionD0(const char* opt) | |
93fcaf9f | 49 | : AliDxHFEParticleSelection("D0", opt) |
50 | , fD0Properties(NULL) | |
9535cec9 | 51 | , fD0Daughter0(NULL) |
52 | , fD0Daughter1(NULL) | |
53 | , fCuts(NULL) | |
54 | , fFillOnlyD0D0bar(0) | |
d731501a | 55 | , fD0InvMass(0.0) |
56 | , fPtBin(-1) | |
2229ac91 | 57 | , fHistoList(NULL) |
72c0a987 | 58 | { |
59 | // constructor | |
60 | // | |
61 | // | |
62 | // | |
63 | // | |
9535cec9 | 64 | TString strOption(opt); |
65 | // TODO: one might need a proper argument parsing including | |
66 | // chopping whole string into individual arguments | |
67 | if (strOption.Contains("FillD0D0bar")) fFillOnlyD0D0bar=0; | |
68 | else if (strOption.Contains("FillOnlyD0")) fFillOnlyD0D0bar=1; | |
69 | else if (strOption.Contains("FillOnlyD0bar")) fFillOnlyD0D0bar=2; | |
72c0a987 | 70 | } |
71 | ||
72 | AliDxHFEParticleSelectionD0::~AliDxHFEParticleSelectionD0() | |
73 | { | |
74 | // destructor | |
9535cec9 | 75 | if (fD0Properties) { |
76 | delete fD0Properties; | |
77 | fD0Properties=NULL; | |
78 | } | |
79 | if (fD0Daughter0) { | |
80 | delete fD0Daughter0; | |
81 | fD0Daughter0=NULL; | |
82 | } | |
83 | if (fD0Daughter1) { | |
84 | delete fD0Daughter1; | |
85 | fD0Daughter1=NULL; | |
86 | } | |
2229ac91 | 87 | if (fHistoList){ |
88 | delete fHistoList; | |
89 | fHistoList=NULL; | |
90 | } | |
9535cec9 | 91 | |
92 | // Note: external object deleted elsewhere | |
93 | fCuts=NULL; | |
72c0a987 | 94 | } |
95 | ||
d731501a | 96 | const char* AliDxHFEParticleSelectionD0::fgkDgTrackControlBinNames[]={ |
97 | "Pt", | |
98 | "Phi", | |
99 | "Ptbin", | |
100 | "D0InvMass", | |
101 | "Eta" | |
102 | }; | |
103 | ||
2229ac91 | 104 | const char* AliDxHFEParticleSelectionD0::fgkCutBinNames[]={ |
105 | "nDstar->D0", | |
106 | "nCandSel(Tr)", | |
107 | "ptbin-1", | |
108 | "No daugthers", | |
109 | "Selectioncode 0", | |
110 | "Selected D0", | |
111 | "Selected D0bar", | |
112 | "Selected as both" | |
113 | }; | |
114 | ||
115 | ||
93fcaf9f | 116 | int AliDxHFEParticleSelectionD0::InitControlObjects() |
117 | { | |
118 | /// init the control objects, can be overloaded by childs which should | |
119 | /// call AliDxHFEParticleSelection::InitControlObjects() explicitly | |
93fcaf9f | 120 | |
d731501a | 121 | fD0Properties=DefineTHnSparse(); |
93fcaf9f | 122 | AddControlObject(fD0Properties); |
123 | ||
9535cec9 | 124 | //Adding control objects for the daughters |
125 | InitControlObjectsDaughters("pi information",0); | |
126 | InitControlObjectsDaughters("K information",1); | |
2229ac91 | 127 | AliInfo(Form("D0 filling scheme: %d\n",fFillOnlyD0D0bar)); |
128 | ||
129 | fHistoList=new TList; | |
130 | fHistoList->SetName("D0 Histograms"); | |
131 | fHistoList->SetOwner(); | |
132 | ||
133 | // Histogram storing which cuts have been applied to the tracks | |
134 | fHistoList->Add(CreateControlHistogram("fWhichCutD0","effective cut for a rejected particle", kNCutLabels, fgkCutBinNames)); | |
135 | ||
136 | AddControlObject(fHistoList); | |
9535cec9 | 137 | |
93fcaf9f | 138 | return AliDxHFEParticleSelection::InitControlObjects(); |
139 | } | |
140 | ||
dcf83226 | 141 | THnSparse* AliDxHFEParticleSelectionD0::DefineTHnSparse() |
d731501a | 142 | { |
143 | // | |
dfe96b90 | 144 | // Defines the THnSparse. |
d731501a | 145 | |
dcf83226 | 146 | // here is the only place to change the dimension |
d731501a | 147 | const int thnSize2 = 5; |
dcf83226 | 148 | InitTHnSparseArray(thnSize2); |
149 | ||
d731501a | 150 | const double Pi=TMath::Pi(); |
151 | TString name; | |
152 | name.Form("%s info", GetName()); | |
153 | ||
dfe96b90 | 154 | // 0 1 2 3 4 |
dcf83226 | 155 | // Pt Phi Ptbin D0InvMass Eta |
dfe96b90 | 156 | int thnBins [thnSize2] = {1000, 200, 15, 200, 500 }; |
157 | double thnMin [thnSize2] = { 0, 0, 0, 1.5648, -1. }; | |
158 | double thnMax [thnSize2] = { 100, 2*Pi, 14, 2.1648, 1. }; | |
159 | const char* thnNames[thnSize2] = {"Pt", "Phi","Ptbin","D0InvMass","Eta"}; | |
d731501a | 160 | |
dcf83226 | 161 | return CreateControlTHnSparse(name,thnSize2,thnBins,thnMin,thnMax,thnNames); |
d731501a | 162 | } |
163 | ||
dcf83226 | 164 | int AliDxHFEParticleSelectionD0::FillParticleProperties(AliVParticle* p, Double_t* data, int dimension) const |
d731501a | 165 | { |
166 | // fill the data array from the particle data | |
167 | if (!data) return -EINVAL; | |
d731501a | 168 | AliAODRecoDecayHF2Prong* track=dynamic_cast<AliAODRecoDecayHF2Prong*>(p); |
169 | if (!track) return -ENODATA; | |
170 | int i=0; | |
dcf83226 | 171 | if (dimension!=GetDimTHnSparse()) { |
d731501a | 172 | // TODO: think about filling only the available data and throwing a warning |
173 | return -ENOSPC; | |
174 | } | |
175 | data[i++]=track->Pt(); | |
176 | data[i++]=track->Phi(); | |
177 | data[i++]=fPtBin; | |
178 | data[i++]=fD0InvMass; | |
179 | data[i++]=track->Eta(); | |
180 | ||
181 | return i; | |
182 | } | |
183 | ||
9535cec9 | 184 | int AliDxHFEParticleSelectionD0::InitControlObjectsDaughters(TString name, int daughter) |
185 | { | |
d731501a | 186 | // Setting up Control objects for the daughters. |
187 | // Move to ParticleSelection?? | |
9535cec9 | 188 | AliInfo("Setting up daughter THnSparse"); |
189 | ||
190 | const int thnSize2 = 5; | |
191 | const double Pi=TMath::Pi(); | |
192 | // 0 1 2 3 4 | |
193 | // Pt Phi Ptbin D0InvMass Eta | |
194 | int thnBins[thnSize2] = { 1000, 200, 21, 200, 500}; | |
195 | double thnMin [thnSize2] = { 0, 0, 0, 1.5648, -1.}; | |
196 | double thnMax [thnSize2] = { 100, 2*Pi, 20, 2.1648, 1.}; | |
197 | ||
198 | std::auto_ptr<THnSparseF> DaughterProperties(new THnSparseF(name, name, thnSize2, thnBins, thnMin, thnMax)); | |
199 | ||
200 | if (DaughterProperties.get()==NULL) { | |
201 | return -ENOMEM; | |
202 | } | |
d731501a | 203 | |
204 | for(int iLabel=0; iLabel< 5;iLabel++) | |
205 | DaughterProperties->GetAxis(iLabel)->SetTitle(fgkDgTrackControlBinNames[iLabel]); | |
9535cec9 | 206 | |
207 | if(daughter==0){ | |
208 | fD0Daughter0=DaughterProperties.release(); | |
209 | AddControlObject(fD0Daughter0); | |
210 | } | |
211 | ||
212 | if(daughter==1){ | |
213 | fD0Daughter1=DaughterProperties.release(); | |
214 | AddControlObject(fD0Daughter1); | |
215 | } | |
216 | return 0; | |
217 | } | |
218 | ||
219 | int AliDxHFEParticleSelectionD0::HistogramParticleProperties(AliVParticle* p, int selectionCode) | |
93fcaf9f | 220 | { |
9535cec9 | 221 | |
93fcaf9f | 222 | /// histogram particle properties |
223 | if (!p) return -EINVAL; | |
224 | ||
225 | // fill the common histograms | |
9535cec9 | 226 | AliDxHFEParticleSelection::HistogramParticleProperties(p, selectionCode); |
93fcaf9f | 227 | |
9535cec9 | 228 | // no daughters to fill if 0 (= no candidate) |
229 | if (selectionCode==0) return 0; | |
93fcaf9f | 230 | |
93fcaf9f | 231 | AliAODRecoDecayHF2Prong* part=dynamic_cast<AliAODRecoDecayHF2Prong*>(p); |
9535cec9 | 232 | |
233 | if(!part) return 0; | |
234 | // Convention: 1. daughter is postive track, 2. = negative | |
235 | AliAODTrack *prongpos=(AliAODTrack*)part->GetDaughter(0); | |
236 | AliAODTrack *prongneg=(AliAODTrack*)part->GetDaughter(1); | |
237 | ||
238 | if(!prongpos || !prongneg) { | |
239 | return 0; | |
240 | } | |
241 | ||
dfe96b90 | 242 | fD0InvMass= part->InvMassD0(); |
243 | fPtBin=fCuts->PtBin(part->Pt()); | |
244 | ||
245 | // TODO: avoid repeated allocation of the arrays | |
246 | Double_t KProperties[]={prongneg->Pt(),prongneg->Phi(),fPtBin, fD0InvMass,prongneg->Eta()}; | |
247 | Double_t piProperties[]={prongpos->Pt(),prongpos->Phi(),fPtBin,fD0InvMass,prongpos->Eta()}; | |
d731501a | 248 | |
dfe96b90 | 249 | |
250 | // Fills only for D0 or both.. | |
251 | if ((selectionCode==1 || selectionCode==3) && fFillOnlyD0D0bar<2) { | |
d731501a | 252 | |
dcf83226 | 253 | if(fD0Properties && ParticleProperties()) { |
254 | memset(ParticleProperties(), 0, GetDimTHnSparse()*sizeof(ParticleProperties()[0])); | |
255 | FillParticleProperties(p, ParticleProperties(), GetDimTHnSparse()); | |
256 | fD0Properties->Fill(ParticleProperties()); | |
257 | } | |
9535cec9 | 258 | if(fD0Daughter0) fD0Daughter0->Fill(piProperties); |
259 | if(fD0Daughter1) fD0Daughter1->Fill(KProperties); | |
93fcaf9f | 260 | } |
2229ac91 | 261 | // Checks for D0bar (or hypothesis both) |
262 | if ((selectionCode==2 || selectionCode==3) && (fFillOnlyD0D0bar==0 || fFillOnlyD0D0bar==2)) { | |
263 | // Set the fD0InvMass to InvMassD0bar instead.. | |
264 | fD0InvMass= part->InvMassD0bar(); | |
265 | if(fD0Properties && ParticleProperties()) { | |
266 | memset(ParticleProperties(), 0, GetDimTHnSparse()*sizeof(ParticleProperties()[0])); | |
267 | FillParticleProperties(p, ParticleProperties(), GetDimTHnSparse()); | |
268 | fD0Properties->Fill(ParticleProperties()); | |
dfe96b90 | 269 | } |
2229ac91 | 270 | if(fD0Daughter0) fD0Daughter0->Fill(piProperties); |
271 | if(fD0Daughter1) fD0Daughter1->Fill(KProperties); | |
272 | //reset value to InvMassD0 for when CreateParticle() is called | |
273 | fD0InvMass= part->InvMassD0(); | |
274 | ||
dfe96b90 | 275 | } |
93fcaf9f | 276 | return 0; |
277 | } | |
278 | ||
9535cec9 | 279 | TObjArray* AliDxHFEParticleSelectionD0::Select(TObjArray* pTracks, const AliVEvent *pEvent) |
280 | { | |
281 | /// create selection, array contains only pointers but does not own the objects | |
282 | /// object array needs to be deleted by caller | |
283 | if (!pTracks) return NULL; | |
284 | TObjArray* selectedTracks=new TObjArray; | |
285 | if (!selectedTracks) return NULL; | |
dfe96b90 | 286 | selectedTracks->SetOwner(); |
9535cec9 | 287 | TIter itrack(pTracks); |
288 | TObject* pObj=NULL; | |
289 | while ((pObj=itrack())!=NULL) { | |
290 | AliVParticle* track=dynamic_cast<AliVParticle*>(pObj); | |
291 | if (!track) continue; | |
292 | int selectionCode=IsSelected(track,pEvent); | |
293 | HistogramParticleProperties(track, selectionCode); | |
9535cec9 | 294 | |
295 | // Add track if it is either defined as D0(selectionCode==1) or both | |
296 | // D0bar and a D0 (selectionCode==3) | |
dfe96b90 | 297 | if ((selectionCode==1 || selectionCode==3) && fFillOnlyD0D0bar<2) |
298 | selectedTracks->Add(CreateParticle(track)); | |
2229ac91 | 299 | |
300 | // Add track if it is either defined as D0bar(selectionCode==2) or both | |
301 | // D0bar and a D0 (selectionCode==3) | |
302 | if ((selectionCode==2 || selectionCode==3) && (fFillOnlyD0D0bar==0 || fFillOnlyD0D0bar==2)){ | |
303 | fD0InvMass= dynamic_cast<AliAODRecoDecayHF2Prong*>(track)->InvMassD0bar(); | |
304 | selectedTracks->Add(CreateParticle(track)); | |
305 | } | |
9535cec9 | 306 | } |
307 | return selectedTracks; | |
308 | } | |
309 | ||
310 | int AliDxHFEParticleSelectionD0::IsSelected(AliVParticle* p, const AliVEvent* pEvent) | |
72c0a987 | 311 | { |
312 | /// TODO: implement specific selection of D0 candidates | |
d731501a | 313 | /// Could also return values based on where where selection "failed |
314 | /// Selected. Return 0 (none), 1(D0), 2(D0bar) or 3 (both) | |
315 | ||
9535cec9 | 316 | int selectionCode=0; |
317 | ||
318 | AliAODRecoDecayHF2Prong *d0 = dynamic_cast<AliAODRecoDecayHF2Prong*>(p); | |
3b40764c | 319 | if (!d0) return 0; |
9535cec9 | 320 | if(d0->GetSelectionMap()) if(!d0->HasSelectionBit(AliRDHFCuts::kD0toKpiCuts)){ |
321 | AliDebug(1,"Skip D0 from Dstar"); | |
2229ac91 | 322 | ((TH1D*)fHistoList->FindObject("fWhichCutD0"))->Fill(kDstar); |
323 | ||
9535cec9 | 324 | return 0; //skip the D0 from Dstar |
325 | } | |
326 | ||
327 | // TODO: the cuts instance should be const but the function definition of | |
328 | // AliRDHFCuts::IsSelected does not allow this | |
329 | AliRDHFCuts* cuts=const_cast<AliRDHFCuts*>(fCuts); | |
330 | if (!cuts) { | |
d731501a | 331 | selectionCode=0; |
dfe96b90 | 332 | } |
333 | else if(cuts->IsInFiducialAcceptance(d0->Pt(),d0->Y(421)) ) { | |
d731501a | 334 | |
2229ac91 | 335 | // TODO: the aod pointer should also be const but the function definition of |
336 | // AliRDHFCuts::IsSelected does not allow this | |
337 | AliAODEvent* aod=NULL; | |
338 | if (pEvent) aod=dynamic_cast<AliAODEvent*>(const_cast<AliVEvent*>(pEvent)); | |
339 | ||
340 | //TODO: Should add fSystem for PbPb if(fSys==0){ | |
341 | if(cuts->IsSelected(d0,AliRDHFCuts::kTracks,aod)) ((TH1D*)fHistoList->FindObject("fWhichCutD0"))->Fill(kCandSelTrack); | |
342 | ||
9535cec9 | 343 | Int_t ptbin=cuts->PtBin(d0->Pt()); |
344 | if(ptbin==-1) { | |
2229ac91 | 345 | ((TH1D*)fHistoList->FindObject("fWhichCutD0"))->Fill(kNegPtbin); |
9535cec9 | 346 | AliDebug(1,"Pt out of bounds"); |
347 | return 0; | |
348 | } //out of bounds | |
349 | ||
d731501a | 350 | // Selected. Return 0 (none), 1 (D0), 2 (D0bar) or 3 (both) |
9535cec9 | 351 | selectionCode=cuts->IsSelected(d0,AliRDHFCuts::kAll,aod); |
2229ac91 | 352 | if(selectionCode==0) |
353 | ((TH1D*)fHistoList->FindObject("fWhichCutD0"))->Fill(kSelected0); | |
354 | ||
355 | if(selectionCode==1) | |
356 | ((TH1D*)fHistoList->FindObject("fWhichCutD0"))->Fill(kSelectedD0); | |
357 | ||
358 | if(selectionCode==2) | |
359 | ((TH1D*)fHistoList->FindObject("fWhichCutD0"))->Fill(kSelectedD0bar); | |
360 | ||
361 | if(selectionCode==3) | |
362 | ((TH1D*)fHistoList->FindObject("fWhichCutD0"))->Fill(kSelectedboth); | |
9535cec9 | 363 | |
364 | AliDebug(1,Form("Candidate is %d \n", selectionCode)); | |
2229ac91 | 365 | |
366 | // check daughters before calling as there is unchecked code in | |
367 | // AliAODRecoDecayHF::HasBadDaughters called | |
368 | TObject* o=NULL; | |
369 | if (!((o=d0->GetDaughter(0))!=NULL && dynamic_cast<AliAODTrack*>(o)!=NULL && | |
370 | (o=d0->GetDaughter(1))!=NULL && dynamic_cast<AliAODTrack*>(o)!=NULL)) { | |
371 | ((TH1D*)fHistoList->FindObject("fWhichCutD0"))->Fill(kNoDaugthers); | |
9535cec9 | 372 | AliDebug(1,"at least one daughter not found!"); |
2229ac91 | 373 | |
9535cec9 | 374 | } |
375 | } | |
376 | ||
377 | return selectionCode; | |
378 | } | |
379 | ||
2229ac91 | 380 | void AliDxHFEParticleSelectionD0::SetCuts(TObject* cuts, int level) |
9535cec9 | 381 | { |
382 | /// set cuts objects | |
2229ac91 | 383 | if (level==kCutD0) { |
384 | fCuts=dynamic_cast<AliRDHFCuts*>(cuts); | |
385 | if (!fCuts && cuts) { | |
386 | AliError(Form("cuts object is not of required type AliRDHFCuts but %s", cuts->ClassName())); | |
387 | } | |
388 | return; | |
389 | } | |
390 | if (level==kCutList){ | |
391 | TList* CutList=dynamic_cast<TList*>(cuts); | |
392 | if (!CutList && cuts) { | |
393 | AliError(Form("cuts object is not of required type TList but %s", cuts->ClassName())); | |
394 | } | |
395 | else{ | |
396 | TObject *obj=NULL; | |
397 | int iii=0; | |
398 | TIter next(CutList); | |
399 | while((obj = next())){ | |
400 | iii++; | |
401 | if(iii==1) { | |
402 | fCuts=dynamic_cast<AliRDHFCuts*>(obj); | |
403 | if (!fCuts) | |
404 | AliError(Form("Cut object is not of required type AliRDHFCuts but %s", obj->ClassName())); | |
405 | } | |
406 | } | |
407 | } | |
408 | return; | |
9535cec9 | 409 | } |
2229ac91 | 410 | return; |
72c0a987 | 411 | } |
dfe96b90 | 412 | |
413 | AliVParticle *AliDxHFEParticleSelectionD0::CreateParticle(AliVParticle* track) | |
414 | { | |
415 | // | |
416 | // Creates object containing only the variables needed for correlation | |
417 | // | |
418 | ||
419 | AliReducedParticle *part = new AliReducedParticle(track->Eta(), track->Phi(), track->Pt(),fD0InvMass,fPtBin); | |
420 | ||
421 | return part; | |
422 | ||
423 | } |