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76ce4b5b | 1 | ///////////////////////////////////////////////////////////////////////////////////// |
2 | // // | |
3 | // AliFemtoEventReaderKinematicsChain - the reader class for the Alice ESD and // | |
4 | // the model Kinematics information tailored for the Task framework and the // | |
5 | // Reads in AliESDfriend to create shared hit/quality information // | |
6 | // Authors: Malgorzata Janik, Warsaw University of Technology, majanik@cern.ch // | |
7 | // Lukasz Graczykowski, Warsaw University of Technology, lgraczyk@cern.ch // | |
8 | // // | |
9 | ///////////////////////////////////////////////////////////////////////////////////// | |
10 | ||
11 | #include "AliFemtoEventReaderKinematicsChain.h" | |
12 | ||
13 | #include "TFile.h" | |
14 | #include "TTree.h" | |
15 | #include "TList.h" | |
16 | ||
17 | #include "AliFmPhysicalHelixD.h" | |
18 | #include "AliFmThreeVectorF.h" | |
19 | ||
20 | #include "SystemOfUnits.h" | |
21 | ||
22 | #include "AliFemtoEvent.h" | |
23 | ||
24 | #include "TParticle.h" | |
25 | #include "AliStack.h" | |
26 | #include "TParticlePDG.h" | |
27 | #include "AliFemtoModelHiddenInfo.h" | |
28 | #include "AliFemtoModelGlobalHiddenInfo.h" | |
29 | #include "AliGenHijingEventHeader.h" | |
30 | #include "AliGenCocktailEventHeader.h" | |
31 | ||
32 | #include "AliVertexerTracks.h" | |
33 | ||
34 | ClassImp(AliFemtoEventReaderKinematicsChain) | |
35 | ||
36 | #if !(ST_NO_NAMESPACES) | |
37 | using namespace units; | |
38 | #endif | |
39 | ||
40 | using namespace std; | |
41 | //____________________________ | |
42 | AliFemtoEventReaderKinematicsChain::AliFemtoEventReaderKinematicsChain(): | |
43 | fFileName(" "), | |
44 | fConstrained(true), | |
45 | fNumberofEvent(0), | |
46 | fCurEvent(0), | |
47 | fCurFile(0), | |
48 | fStack(0x0), | |
49 | fGenHeader(0x0), | |
4eac0b05 | 50 | fEstEventMult(kGlobalCount), |
76ce4b5b | 51 | fRotateToEventPlane(0) |
52 | { | |
53 | //constructor with 0 parameters , look at default settings | |
54 | } | |
55 | ||
56 | //__________________ | |
57 | AliFemtoEventReaderKinematicsChain::AliFemtoEventReaderKinematicsChain(const AliFemtoEventReaderKinematicsChain& aReader): | |
58 | AliFemtoEventReader(aReader), | |
59 | fFileName(" "), | |
60 | fConstrained(true), | |
61 | fNumberofEvent(0), | |
62 | fCurEvent(0), | |
63 | fCurFile(0), | |
64 | fStack(0x0), | |
65 | fGenHeader(0x0), | |
4eac0b05 | 66 | fEstEventMult(kGlobalCount), |
76ce4b5b | 67 | fRotateToEventPlane(0) |
68 | { | |
69 | // Copy constructor | |
70 | fConstrained = aReader.fConstrained; | |
71 | fNumberofEvent = aReader.fNumberofEvent; | |
72 | fCurEvent = aReader.fCurEvent; | |
73 | fCurFile = aReader.fCurFile; | |
74 | fStack = aReader.fStack; | |
4eac0b05 | 75 | fEstEventMult = aReader.fEstEventMult; |
76ce4b5b | 76 | fRotateToEventPlane = aReader.fRotateToEventPlane; |
77 | } | |
78 | //__________________ | |
79 | AliFemtoEventReaderKinematicsChain::~AliFemtoEventReaderKinematicsChain() | |
80 | { | |
81 | //Destructor | |
82 | //delete fEvent; | |
83 | } | |
84 | ||
85 | //__________________ | |
86 | AliFemtoEventReaderKinematicsChain& AliFemtoEventReaderKinematicsChain::operator=(const AliFemtoEventReaderKinematicsChain& aReader) | |
87 | { | |
88 | // Assignment operator | |
89 | if (this == &aReader) | |
90 | return *this; | |
91 | ||
92 | fConstrained = aReader.fConstrained; | |
93 | fNumberofEvent = aReader.fNumberofEvent; | |
94 | fCurEvent = aReader.fCurEvent; | |
95 | fCurFile = aReader.fCurFile; | |
96 | fStack = aReader.fStack; | |
97 | fGenHeader = aReader.fGenHeader; | |
4eac0b05 | 98 | fEstEventMult = aReader.fEstEventMult; |
76ce4b5b | 99 | fRotateToEventPlane = aReader.fRotateToEventPlane; |
100 | return *this; | |
101 | } | |
102 | //__________________ | |
103 | // Simple report | |
104 | AliFemtoString AliFemtoEventReaderKinematicsChain::Report() | |
105 | { | |
106 | AliFemtoString temp = "\n This is the AliFemtoEventReaderKinematicsChain\n"; | |
107 | return temp; | |
108 | } | |
109 | ||
110 | //__________________ | |
111 | void AliFemtoEventReaderKinematicsChain::SetConstrained(const bool constrained) | |
112 | { | |
113 | // Select whether to read constrained or not constrained momentum | |
114 | fConstrained=constrained; | |
115 | } | |
116 | //__________________ | |
117 | bool AliFemtoEventReaderKinematicsChain::GetConstrained() const | |
118 | { | |
119 | // Check whether we read constrained or not constrained momentum | |
120 | return fConstrained; | |
121 | } | |
122 | //__________________ | |
123 | AliFemtoEvent* AliFemtoEventReaderKinematicsChain::ReturnHbtEvent() | |
124 | { | |
125 | // Get the event, read all the relevant information from the stack | |
126 | // and fill the AliFemtoEvent class | |
127 | // Returns a valid AliFemtoEvent | |
128 | AliFemtoEvent *hbtEvent = 0; | |
129 | string tFriendFileName; | |
130 | ||
131 | cout << "AliFemtoEventReaderKinematlaicsChain::Starting to read event: "<<fCurEvent<<endl; | |
132 | ||
133 | hbtEvent = new AliFemtoEvent; | |
134 | //setting basic things | |
135 | // hbtEvent->SetEventNumber(fEvent->GetEventNumber()); | |
136 | hbtEvent->SetRunNumber(0); //No Run number in Kinematics! | |
137 | hbtEvent->SetMagneticField(0*kilogauss);//to check if here is ok | |
138 | hbtEvent->SetZDCN1Energy(0); | |
139 | hbtEvent->SetZDCP1Energy(0); | |
140 | hbtEvent->SetZDCN2Energy(0); | |
141 | hbtEvent->SetZDCP2Energy(0); | |
142 | hbtEvent->SetZDCEMEnergy(0); | |
143 | hbtEvent->SetZDCParticipants(0); | |
144 | hbtEvent->SetTriggerMask(0); | |
145 | hbtEvent->SetTriggerCluster(0); | |
146 | ||
147 | //Vertex | |
148 | double fV1[3] = {0.0,0.0,0.0}; | |
149 | double fVCov[6] = {0.0, 0.0, 0.0, 0.0, 0.0, 0.0}; | |
150 | ||
151 | ||
152 | AliFmThreeVectorF vertex(0,0,0); | |
153 | ||
154 | ||
155 | hbtEvent->SetPrimVertPos(vertex); | |
156 | hbtEvent->SetPrimVertCov(fVCov); | |
157 | ||
158 | Double_t tReactionPlane = 0; | |
159 | ||
160 | AliGenHijingEventHeader *hdh = dynamic_cast<AliGenHijingEventHeader *> (fGenHeader); | |
161 | if (!hdh) { | |
162 | AliGenCocktailEventHeader *cdh = dynamic_cast<AliGenCocktailEventHeader *> (fGenHeader); | |
163 | if (cdh) { | |
164 | TList *tGenHeaders = cdh->GetHeaders(); | |
165 | for (int ihead = 0; ihead<tGenHeaders->GetEntries(); ihead++) { | |
166 | hdh = dynamic_cast<AliGenHijingEventHeader *> (fGenHeader); | |
167 | if (hdh) break; | |
168 | } | |
169 | } | |
170 | } | |
171 | ||
172 | if (hdh) | |
173 | { | |
174 | tReactionPlane = hdh->ReactionPlaneAngle(); | |
175 | cout << "Got reaction plane " << tReactionPlane << endl; | |
176 | } | |
177 | ||
178 | hbtEvent->SetReactionPlaneAngle(tReactionPlane); | |
179 | ||
180 | //starting to reading tracks | |
181 | int nofTracks=0; //number of all tracks in MC event | |
182 | nofTracks=fStack->GetNtrack(); | |
183 | int realnofTracks=0;//number of track which we use in analysis | |
184 | ||
185 | ||
186 | int tNormMult = 0; | |
4eac0b05 | 187 | int tV0direction = 0; |
76ce4b5b | 188 | for (int i=0;i<nofTracks;i++) |
189 | { | |
76ce4b5b | 190 | //take only primaries |
191 | if(!fStack->IsPhysicalPrimary(i)) {continue;} | |
192 | ||
193 | AliFemtoTrack* trackCopy = new AliFemtoTrack(); | |
194 | ||
195 | //getting next track | |
196 | TParticle *kinetrack= fStack->Particle(i); | |
197 | ||
5f0fbae6 | 198 | |
199 | ||
200 | ||
76ce4b5b | 201 | //setting multiplicity |
202 | realnofTracks++;//real number of tracks (only primary particles) | |
203 | ||
204 | //setting normalized multiplicity | |
1777446b | 205 | |
76ce4b5b | 206 | if(kinetrack->GetPDG()->Charge()/3!=0) |
1777446b | 207 | if (kinetrack->Pt() > 0.15 && kinetrack->Pt() < 20) |
208 | if (kinetrack->Eta() < 0.8) | |
209 | tNormMult++; | |
76ce4b5b | 210 | |
4eac0b05 | 211 | //counting particles that go into direction of VZERO detector |
212 | if(kinetrack->Eta() > 2.8 && kinetrack->Eta() < 5.1) //VZERO-A | |
213 | tV0direction++; | |
214 | if(kinetrack->Eta() > -3.7 && kinetrack->Eta() < -1.7)//VZERO-C | |
215 | tV0direction++; | |
216 | ||
76ce4b5b | 217 | //charge |
218 | trackCopy->SetCharge((short)(fStack->Particle(i)->GetPDG()->Charge()/3)); | |
219 | ||
220 | ||
221 | //in aliroot we have AliPID | |
222 | //0-electron 1-muon 2-pion 3-kaon 4-proton 5-photon 6-pi0 7-neutron 8-kaon0 9-eleCon | |
223 | //we use only 5 first | |
224 | double kinepid[5]; | |
225 | for(int pid_iter=0;pid_iter<5;pid_iter++) | |
226 | kinepid[pid_iter]=0; | |
227 | ||
228 | int pdgcode = kinetrack->GetPdgCode(); | |
229 | //proton | |
230 | if(pdgcode==2212 || pdgcode==-2212) | |
231 | kinepid[4]=1000; | |
232 | //kaon | |
ce7b3d98 | 233 | else if(pdgcode==321 || pdgcode==-321 ) |
76ce4b5b | 234 | kinepid[3]=1000; |
235 | //pion | |
ce7b3d98 | 236 | else if( pdgcode==211 || pdgcode==-211) |
76ce4b5b | 237 | kinepid[2]=1000; |
238 | //electron | |
ce7b3d98 | 239 | else if(pdgcode==11 || pdgcode==-11) |
76ce4b5b | 240 | kinepid[0]=1000; |
241 | //muon | |
ce7b3d98 | 242 | else if(pdgcode==13 || pdgcode==-13) |
76ce4b5b | 243 | kinepid[1]=1000; |
ce7b3d98 | 244 | else |
245 | continue; | |
76ce4b5b | 246 | trackCopy->SetPidProbElectron(kinepid[0]); |
247 | trackCopy->SetPidProbMuon(kinepid[1]); | |
248 | trackCopy->SetPidProbPion(kinepid[2]); | |
249 | trackCopy->SetPidProbKaon(kinepid[3]); | |
250 | trackCopy->SetPidProbProton(kinepid[4]); | |
251 | ||
252 | ||
253 | //Momentum | |
254 | double pxyz[3]; | |
5f0fbae6 | 255 | double rxyz[3]; |
76ce4b5b | 256 | |
5f0fbae6 | 257 | pxyz[0]=kinetrack->Px(); |
258 | pxyz[1]=kinetrack->Py(); | |
259 | pxyz[2]=kinetrack->Pz(); | |
260 | ||
261 | rxyz[0]=kinetrack->Vx(); | |
262 | rxyz[1]=kinetrack->Vy(); | |
263 | rxyz[2]=kinetrack->Vz(); | |
264 | ||
265 | AliFemtoModelHiddenInfo *tInfo = new AliFemtoModelHiddenInfo(); | |
266 | tInfo->SetPDGPid(kinetrack->GetPdgCode()); | |
267 | tInfo->SetTrueMomentum(pxyz[0], pxyz[1], pxyz[2]); | |
268 | tInfo->SetMass(kinetrack->GetMass()); | |
269 | tInfo->SetEmissionPoint(rxyz[0]-fV1[0], rxyz[1]-fV1[1], rxyz[2]-fV1[2], 0.0); | |
270 | trackCopy->SetHiddenInfo(tInfo); | |
271 | ||
272 | trackCopy->SetTrueMomentum(pxyz[0], pxyz[1], pxyz[2]); | |
273 | trackCopy->SetEmissionPoint(rxyz[0]-fV1[0], rxyz[1]-fV1[1], rxyz[2]-fV1[2], 0.0); | |
76ce4b5b | 274 | |
76ce4b5b | 275 | |
276 | if (fRotateToEventPlane) { | |
277 | double tPhi = TMath::ATan2(pxyz[1], pxyz[0]); | |
278 | double tRad = TMath::Hypot(pxyz[0], pxyz[1]); | |
279 | ||
280 | pxyz[0] = tRad*TMath::Cos(tPhi - tReactionPlane); | |
281 | pxyz[1] = tRad*TMath::Sin(tPhi - tReactionPlane); | |
282 | } | |
283 | ||
284 | AliFemtoThreeVector v(pxyz[0],pxyz[1],pxyz[2]); | |
285 | if (v.Mag() < 0.0001) { | |
973a91f8 | 286 | //cout << "Found 0 momentum ???? " << pxyz[0] << " " << pxyz[1] << " " << pxyz[2] << endl; |
76ce4b5b | 287 | delete trackCopy; |
288 | continue; | |
289 | } | |
290 | ||
291 | trackCopy->SetP(v);//setting momentum | |
292 | trackCopy->SetPt(sqrt(pxyz[0]*pxyz[0]+pxyz[1]*pxyz[1])); | |
293 | const AliFmThreeVectorD kP(pxyz[0],pxyz[1],pxyz[2]); | |
294 | const AliFmThreeVectorD kOrigin(fV1[0],fV1[1],fV1[2]); | |
295 | ||
296 | //label | |
973a91f8 | 297 | trackCopy->SetLabel(i); |
76ce4b5b | 298 | |
299 | ||
300 | hbtEvent->TrackCollection()->push_back(trackCopy);//adding track to analysis | |
973a91f8 | 301 | //cout<<"Track added: "<<i<<endl; |
76ce4b5b | 302 | |
303 | } | |
304 | ||
305 | hbtEvent->SetNumberOfTracks(realnofTracks);//setting number of track which we read in event | |
4eac0b05 | 306 | if (fEstEventMult == kGlobalCount) |
307 | hbtEvent->SetNormalizedMult(tNormMult); | |
308 | else if(fEstEventMult == kVZERO) | |
309 | hbtEvent->SetNormalizedMult(tV0direction); | |
76ce4b5b | 310 | fCurEvent++; |
311 | ||
973a91f8 | 312 | |
313 | //V0 analysis code - no V0 finder for Kinematics, we can only check if it is primary and if it has at least 2 daughters. | |
314 | ||
315 | for (int i=0;i<nofTracks;i++) | |
316 | { | |
317 | //do not take primaries | |
318 | if(!fStack->IsPhysicalPrimary(i)) {continue;} | |
319 | //getting next track | |
320 | TParticle *kinetrack= fStack->Particle(i); | |
321 | if (!kinetrack) continue; | |
322 | ||
323 | if(kinetrack->GetPDG()->Charge()!=0) continue; //charge - neutral | |
324 | //if(kinetrack->GetPDG()->Stable()==1) continue; //particle is not stable | |
325 | if(kinetrack->GetDaughter(0)<1) continue; //has 1'st daughter | |
326 | if(kinetrack->GetDaughter(1)<1) continue; //has 2'nd daughter | |
327 | ||
328 | //we want one positive, one negative particle. Or two neutral. | |
329 | // if((fStack->Particle(kinetrack->GetDaughter(0)))->GetPDG()->Charge()>=0) | |
330 | // if((fStack->Particle(kinetrack->GetDaughter(1)))->GetPDG()->Charge()>0) | |
331 | // continue; | |
332 | // if((fStack->Particle(kinetrack->GetDaughter(0)))->GetPDG()->Charge()<=0) | |
333 | // if((fStack->Particle(kinetrack->GetDaughter(0)))->GetPDG()->Charge()<0) | |
334 | // continue; | |
335 | ||
336 | if(kinetrack->Pt()<0.00001) | |
337 | continue; | |
338 | ||
339 | AliFemtoV0* trackCopyV0 = new AliFemtoV0(); | |
340 | CopyAODtoFemtoV0(kinetrack, trackCopyV0); | |
341 | hbtEvent->V0Collection()->push_back(trackCopyV0); | |
342 | //cout<<"Pushback v0 to v0collection"<<endl; | |
343 | } | |
344 | ||
345 | ||
346 | cout<<"Number of tracks: "<<realnofTracks<<endl; | |
347 | ||
76ce4b5b | 348 | return hbtEvent; |
349 | } | |
350 | ||
351 | //___________________ | |
352 | void AliFemtoEventReaderKinematicsChain::SetStackSource(AliStack *aStack) | |
353 | { | |
354 | // The chain loads the stack for us | |
355 | // You must provide the address where it can be found | |
356 | fStack = aStack; | |
357 | } | |
358 | //___________________ | |
359 | void AliFemtoEventReaderKinematicsChain::SetGenEventHeader(AliGenEventHeader *aGenHeader) | |
360 | { | |
361 | // The chain loads the generator event header for us | |
362 | // You must provide the address where it can be found | |
363 | fGenHeader = aGenHeader; | |
364 | } | |
365 | ||
366 | //__________________ | |
367 | void AliFemtoEventReaderKinematicsChain::SetRotateToEventPlane(short dorotate) | |
368 | { | |
369 | fRotateToEventPlane=dorotate; | |
370 | } | |
371 | ||
4eac0b05 | 372 | void AliFemtoEventReaderKinematicsChain::SetUseMultiplicity(EstEventMult aType) |
373 | { | |
374 | fEstEventMult = aType; | |
375 | } | |
376 | ||
76ce4b5b | 377 | Float_t AliFemtoEventReaderKinematicsChain::GetSigmaToVertex(double *impact, double *covar) |
378 | { | |
379 | // Calculates the number of sigma to the vertex. | |
380 | ||
381 | Float_t b[2]; | |
382 | Float_t bRes[2]; | |
383 | Float_t bCov[3]; | |
384 | ||
385 | b[0] = impact[0]; | |
386 | b[1] = impact[1]; | |
387 | bCov[0] = covar[0]; | |
388 | bCov[1] = covar[1]; | |
389 | bCov[2] = covar[2]; | |
390 | ||
391 | bRes[0] = TMath::Sqrt(bCov[0]); | |
392 | bRes[1] = TMath::Sqrt(bCov[2]); | |
393 | ||
394 | // ----------------------------------- | |
395 | // How to get to a n-sigma cut? | |
396 | // | |
397 | // The accumulated statistics from 0 to d is | |
398 | // | |
399 | // -> Erf(d/Sqrt(2)) for a 1-dim gauss (d = n_sigma) | |
400 | // -> 1 - Exp(-d**2) for a 2-dim gauss (d*d = dx*dx + dy*dy != n_sigma) | |
401 | // | |
402 | // It means that for a 2-dim gauss: n_sigma(d) = Sqrt(2)*ErfInv(1 - Exp((-x**2)/2) | |
403 | // Can this be expressed in a different way? | |
404 | ||
405 | if (bRes[0] == 0 || bRes[1] ==0) | |
406 | return -1; | |
407 | ||
408 | Float_t d = TMath::Sqrt(TMath::Power(b[0]/bRes[0],2) + TMath::Power(b[1]/bRes[1],2)); | |
409 | ||
410 | // stupid rounding problem screws up everything: | |
411 | // if d is too big, TMath::Exp(...) gets 0, and TMath::ErfInverse(1) that should be infinite, gets 0 :( | |
412 | if (TMath::Exp(-d * d / 2) < 1e-10) | |
413 | return 1000; | |
414 | ||
415 | d = TMath::ErfInverse(1 - TMath::Exp(-d * d / 2)) * TMath::Sqrt(2); | |
416 | return d; | |
417 | } | |
973a91f8 | 418 | |
419 | ||
420 | ||
421 | void AliFemtoEventReaderKinematicsChain::CopyAODtoFemtoV0(TParticle *tv0, AliFemtoV0 *tFemtoV0 ) | |
422 | { | |
423 | tFemtoV0->SetEtaV0(tv0->Eta()); | |
424 | tFemtoV0->SetEtaV0(tv0->Phi()); | |
425 | tFemtoV0->SetptV0(tv0->Pt()); | |
426 | tFemtoV0->SetptotV0(tv0->P()); | |
427 | ||
428 | tFemtoV0->SetmomV0X(tv0->Px()); | |
429 | tFemtoV0->SetmomV0Y(tv0->Py()); | |
430 | tFemtoV0->SetmomV0Z(tv0->Pz()); | |
431 | AliFemtoThreeVector momv0(tv0->Px(),tv0->Py(),tv0->Pz()); | |
432 | tFemtoV0->SetmomV0(momv0); | |
433 | ||
434 | ||
435 | TParticle *trackpos; | |
436 | TParticle *trackneg; | |
437 | ||
438 | //daughters | |
439 | if(fStack->Particle(tv0->GetDaughter(0))->GetPDG()->Charge()>=0) //first positive, second negative | |
440 | { | |
441 | trackpos = (TParticle*)(fStack->Particle(tv0->GetDaughter(0))); | |
442 | trackneg = (TParticle*)(fStack->Particle(tv0->GetDaughter(1))); | |
443 | tFemtoV0->SetidPos(tv0->GetDaughter(0)); | |
444 | tFemtoV0->SetidNeg(tv0->GetDaughter(1)); | |
445 | } | |
446 | else //first negative, second positive | |
447 | { | |
448 | trackpos = (TParticle*)(fStack->Particle(tv0->GetDaughter(1))); | |
449 | trackneg = (TParticle*)(fStack->Particle(tv0->GetDaughter(0))); | |
450 | tFemtoV0->SetidPos(tv0->GetDaughter(1)); | |
451 | tFemtoV0->SetidNeg(tv0->GetDaughter(0)); | |
452 | } | |
453 | ||
454 | tFemtoV0->SetEtaPos(trackpos->Eta()); | |
455 | tFemtoV0->SetEtaNeg(trackneg->Eta()); | |
456 | ||
457 | tFemtoV0->SetptPos(trackpos->Pt()); | |
458 | tFemtoV0->SetptNeg(trackneg->Pt()); | |
459 | ||
460 | tFemtoV0->SetptotPos(trackpos->P()); | |
461 | tFemtoV0->SetptotNeg(trackneg->P()); | |
462 | ||
463 | tFemtoV0->SetmomPosX(trackpos->Px()); | |
464 | tFemtoV0->SetmomPosY(trackpos->Py()); | |
465 | tFemtoV0->SetmomPosZ(trackpos->Pz()); | |
466 | AliFemtoThreeVector mompos(trackpos->Px(),trackpos->Py(),trackpos->Pz()); | |
467 | tFemtoV0->SetmomPos(mompos); | |
468 | ||
469 | tFemtoV0->SetmomNegX(trackneg->Px()); | |
470 | tFemtoV0->SetmomNegY(trackneg->Py()); | |
471 | tFemtoV0->SetmomNegZ(trackneg->Pz()); | |
472 | AliFemtoThreeVector momneg(trackneg->Px(),trackneg->Py(),trackneg->Pz()); | |
473 | tFemtoV0->SetmomNeg(momneg); | |
474 | ||
475 | ||
476 | tFemtoV0->SetmassLambda(tv0->GetMass()); | |
477 | tFemtoV0->SetmassAntiLambda(tv0->GetMass()); | |
478 | tFemtoV0->SetmassK0Short(tv0->GetMass()); | |
479 | ||
480 | tFemtoV0->SetYV0(tv0->Y()); | |
481 | ||
482 | tFemtoV0->SetdecayVertexV0X(trackpos->Vx()); //vertex of the decay is set as the vertex of creation of daughters | |
483 | tFemtoV0->SetdecayVertexV0Y(trackpos->Vy()); | |
484 | tFemtoV0->SetdecayVertexV0Z(trackpos->Vz()); | |
485 | AliFemtoThreeVector decayvertex(trackpos->Vx(),trackpos->Vy(),trackpos->Vz()); | |
486 | tFemtoV0->SetdecayVertexV0(decayvertex); | |
487 | ||
488 | tFemtoV0->SetdcaV0Daughters(0); | |
489 | tFemtoV0->SetCosPointingAngle(1); | |
490 | ||
491 | ||
492 | tFemtoV0->SetStatusPos(1); | |
493 | tFemtoV0->SetStatusNeg(1); | |
494 | ||
495 | ||
496 | if(trackpos->GetPdgCode()==2212) //proton | |
497 | { | |
498 | tFemtoV0->SetPosNSigmaTPCK(1000); | |
499 | tFemtoV0->SetPosNSigmaTPCPi(1000); | |
500 | tFemtoV0->SetPosNSigmaTPCP(0); | |
501 | } | |
502 | if(trackneg->GetPdgCode()==-2212) //antiproton | |
503 | { | |
504 | tFemtoV0->SetNegNSigmaTPCK(1000); | |
505 | tFemtoV0->SetNegNSigmaTPCPi(1000); | |
506 | tFemtoV0->SetNegNSigmaTPCP(0); | |
507 | } | |
508 | if(trackpos->GetPdgCode()==211) //pion plus | |
509 | { | |
510 | tFemtoV0->SetPosNSigmaTPCK(1000); | |
511 | tFemtoV0->SetPosNSigmaTPCPi(0); | |
512 | tFemtoV0->SetPosNSigmaTPCP(1000); | |
513 | } | |
514 | if(trackneg->GetPdgCode()==-211) //pion minus | |
515 | { | |
516 | tFemtoV0->SetNegNSigmaTPCK(1000); | |
517 | tFemtoV0->SetNegNSigmaTPCPi(0); | |
518 | tFemtoV0->SetNegNSigmaTPCP(1000); | |
519 | } | |
520 | if(trackpos->GetPdgCode()==321) //K+ | |
521 | { | |
522 | tFemtoV0->SetPosNSigmaTPCK(0); | |
523 | tFemtoV0->SetPosNSigmaTPCPi(1000); | |
524 | tFemtoV0->SetPosNSigmaTPCP(1000); | |
525 | } | |
526 | if(trackneg->GetPdgCode()==-321) //K- | |
527 | { | |
528 | tFemtoV0->SetNegNSigmaTPCK(0); | |
529 | tFemtoV0->SetNegNSigmaTPCPi(1000); | |
530 | tFemtoV0->SetNegNSigmaTPCP(1000); | |
531 | } | |
532 | ||
533 | ||
534 | } |