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d7c6ab14 | 1 | // $Id$ |
2 | ||
3 | //___________________________________________________________ | |
4 | ///////////////////////////////////////////////////////////// | |
5 | // | |
6 | // class AliJetParticle | |
7 | // | |
8 | // loizides@ikf.uni-frankfurt.de | |
9 | // | |
10 | ///////////////////////////////////////////////////////////// | |
11 | ||
12 | #include <Riostream.h> | |
13 | #include <TMath.h> | |
14 | #include <TParticle.h> | |
15 | #include "AliJetParticle.h" | |
16 | ||
17 | ClassImp(AliJetParticle) | |
18 | ||
19 | AliJetParticle::AliJetParticle() : | |
20 | TObject() | |
21 | { | |
22 | Clear(); | |
23 | } | |
24 | ||
25 | AliJetParticle::AliJetParticle(const AliJetParticle& in) : | |
26 | TObject(in) | |
27 | { | |
28 | SetMomentum(in.fPx,in.fPy,in.fPz,in.fE); | |
29 | fIdxInEvent=in.fIdxInEvent; | |
30 | fLabel=in.fLabel; | |
31 | } | |
32 | ||
33 | AliJetParticle::AliJetParticle(const TParticle* p, Int_t idx, Int_t l) : | |
34 | TObject() | |
35 | { | |
36 | SetMomentum(p->Px(),p->Py(),p->Pz(),p->Energy()); | |
37 | fIdxInEvent=idx; | |
38 | fLabel=l; | |
39 | } | |
40 | ||
41 | AliJetParticle::AliJetParticle(Float_t px, Float_t py, Float_t pz, | |
42 | Float_t etot, Int_t idx, Int_t l) : | |
43 | TObject() | |
44 | { | |
45 | SetMomentum(px,py,pz,etot); | |
46 | fIdxInEvent=idx; | |
47 | fLabel=l; | |
48 | } | |
49 | ||
50 | AliJetParticle::AliJetParticle(Float_t px, Float_t py, Float_t pz, | |
51 | Float_t etot, Int_t idx, Int_t l, | |
52 | Float_t pt, Float_t phi, Float_t eta) : | |
53 | TObject(), | |
54 | fPx(px),fPy(py),fPz(pz), | |
55 | fE(etot),fIdxInEvent(idx),fLabel(l), | |
56 | fPt(pt),fEta(eta),fPhi(phi) | |
57 | { | |
58 | ||
59 | } | |
60 | ||
61 | void AliJetParticle::Calculate() | |
62 | { | |
63 | //calculate values from px, py, pz | |
64 | //which are frequently needed | |
65 | ||
66 | fPt=TMath::Sqrt(fPx*fPx+fPy*fPy); | |
67 | const Float_t kp=P(); | |
68 | fEta=0.5*TMath::Log((kp+fPz+1e-30)/(kp-fPz+1e-30)); | |
69 | fPhi=TMath::Pi()+TMath::ATan2(-fPy,-fPx); | |
70 | } | |
71 | ||
72 | void AliJetParticle::Clear(Option_t* /*t*/) | |
73 | { | |
74 | fPx=0.; | |
75 | fPy=0.; | |
76 | fPz=0.; | |
77 | fE=0.; | |
78 | fIdxInEvent=0; | |
79 | fLabel=0; | |
80 | fPt=0.; | |
81 | fEta=0.; | |
82 | fPhi=0.; | |
83 | } | |
84 | ||
85 | void AliJetParticle::Print(Option_t* /*t*/) const | |
86 | { | |
87 | cout << fPt << " " << fEta << " " << fPhi << endl; | |
88 | } | |
89 | ||
90 | ||
91 | ||
92 | #if 0 | |
93 | Int_t AliHBTParticle::fgDebug = 0; | |
94 | //______________________________________________________________________________ | |
95 | AliHBTParticle::AliHBTParticle(): | |
96 | fPdgIdx(0), fIdxInEvent(0),fNPids(0),fPids(0x0),fPidProb(0x0), | |
97 | fCalcMass(0),fPx(0), fPy(0),fPz(0),fE(0), fVx(0), fVy(0),fVz(0),fVt(0), | |
98 | fTrackPoints(0x0),fClusterMap(0x0) | |
99 | {//empty particle | |
100 | } | |
101 | //______________________________________________________________________________ | |
102 | ||
103 | AliHBTParticle::AliHBTParticle(Int_t pdg, Int_t idx, | |
104 | Double_t px, Double_t py, Double_t pz, Double_t etot, | |
105 | Double_t vx, Double_t vy, Double_t vz, Double_t time): | |
106 | fPdgIdx(0), fIdxInEvent(idx),fNPids(0),fPids(0x0),fPidProb(0x0), | |
107 | fCalcMass(0), | |
108 | fPx(px), fPy(py),fPz(pz),fE(etot), | |
109 | fVx(vx), fVy(vy),fVz(vz),fVt(time), | |
110 | fTrackPoints(0x0),fClusterMap(0x0) | |
111 | { | |
112 | //mormal constructor | |
113 | SetPdgCode(pdg); | |
114 | if (GetPDG()) { | |
115 | fCalcMass = GetPDG()->Mass(); | |
116 | } else { | |
117 | Double_t a2 = fE*fE -fPx*fPx -fPy*fPy -fPz*fPz; | |
118 | if (a2 >= 0) fCalcMass = TMath::Sqrt(a2); | |
119 | else fCalcMass = -TMath::Sqrt(-a2); | |
120 | } | |
121 | } | |
122 | //______________________________________________________________________________ | |
123 | ||
124 | AliHBTParticle::AliHBTParticle(Int_t pdg, Float_t prob, Int_t idx, | |
125 | Double_t px, Double_t py, Double_t pz, Double_t etot, | |
126 | Double_t vx, Double_t vy, Double_t vz, Double_t time): | |
127 | fPdgIdx(0), fIdxInEvent(idx),fNPids(0),fPids(0x0),fPidProb(0x0), | |
128 | fCalcMass(0), | |
129 | fPx(px), fPy(py),fPz(pz),fE(etot), | |
130 | fVx(vx), fVy(vy),fVz(vz),fVt(time), | |
131 | fTrackPoints(0x0),fClusterMap(0x0) | |
132 | { | |
133 | //mormal constructor | |
134 | SetPdgCode(pdg,prob); | |
135 | if (GetPDG()) { | |
136 | fCalcMass = GetPDG()->Mass(); | |
137 | } else { | |
138 | Double_t a2 = fE*fE -fPx*fPx -fPy*fPy -fPz*fPz; | |
139 | if (a2 >= 0) fCalcMass = TMath::Sqrt(a2); | |
140 | else fCalcMass = -TMath::Sqrt(-a2); | |
141 | } | |
142 | } | |
143 | //______________________________________________________________________________ | |
144 | AliHBTParticle::AliHBTParticle(const AliHBTParticle& in): | |
145 | TObject(in), | |
146 | fPdgIdx(in.fPdgIdx), fIdxInEvent(in.fIdxInEvent), | |
147 | fNPids(in.fNPids),fPids(new Int_t[fNPids]),fPidProb(new Float_t[fNPids]), | |
148 | fCalcMass(in.GetCalcMass()), | |
149 | fPx(in.Px()),fPy(in.Py()),fPz(in.Pz()),fE(in.Energy()), | |
150 | fVx(in.Vx()),fVy(in.Vy()),fVz(in.Vz()),fVt(in.T()), | |
151 | fTrackPoints(0x0), fClusterMap(0x0) | |
152 | { | |
153 | //Copy constructor | |
154 | for(Int_t i = 0; i<fNPids; i++) | |
155 | { | |
156 | fPids[i] = in.fPids[i]; | |
157 | fPidProb[i] = in.fPidProb[i]; | |
158 | } | |
159 | ||
160 | if (in.fTrackPoints) | |
161 | fTrackPoints = (AliHBTTrackPoints*)in.fTrackPoints->Clone(); | |
162 | if (in.fClusterMap) | |
163 | fClusterMap = (AliHBTClusterMap*)in.fClusterMap->Clone(); | |
164 | } | |
165 | ||
166 | //______________________________________________________________________________ | |
167 | AliHBTParticle::AliHBTParticle(const TParticle &p,Int_t idx): | |
168 | fPdgIdx(0), fIdxInEvent(idx), | |
169 | fNPids(0),fPids(0x0),fPidProb(0x0), | |
170 | fCalcMass(p.GetCalcMass()), | |
171 | fPx(p.Px()),fPy(p.Py()),fPz(p.Pz()),fE(p.Energy()), | |
172 | fVx(p.Vx()),fVy(p.Vy()),fVz(p.Vz()),fVt(p.T()), | |
173 | fTrackPoints(0x0),fClusterMap(0x0) | |
174 | { | |
175 | //all copied in the initialization | |
176 | SetPdgCode(p.GetPdgCode()); | |
177 | } | |
178 | //______________________________________________________________________________ | |
179 | ||
180 | AliHBTParticle::~AliHBTParticle() | |
181 | { | |
182 | //dtor | |
183 | delete [] fPids; | |
184 | delete [] fPidProb; | |
185 | delete fTrackPoints; | |
186 | delete fClusterMap; | |
187 | } | |
188 | //______________________________________________________________________________ | |
189 | ||
190 | AliHBTParticle& AliHBTParticle::operator=(const AliHBTParticle& in) | |
191 | { | |
192 | //assigment operator | |
193 | ||
194 | fNPids = in.fNPids; | |
195 | delete [] fPids; | |
196 | delete [] fPidProb; | |
197 | Int_t* fPids = new Int_t[fNPids]; | |
198 | Float_t* fPidProb = new Float_t[fNPids]; | |
199 | for (Int_t i = 0; i < fNPids;i++) | |
200 | { | |
201 | fPids[i] = in.fPids[i]; | |
202 | fPidProb[i] = in.fPidProb[i]; | |
203 | } | |
204 | ||
205 | fPdgIdx = in.fPdgIdx; | |
206 | fIdxInEvent = in.fIdxInEvent; | |
207 | fCalcMass = in.GetCalcMass(); | |
208 | fPx = in.Px(); | |
209 | fPy = in.Py(); | |
210 | fPz = in.Pz(); | |
211 | fE = in.Energy(); | |
212 | fVx = in.Vx(); | |
213 | fVy = in.Vy(); | |
214 | fVz = in.Vz(); | |
215 | fVt = in.T(); | |
216 | ||
217 | delete fTrackPoints; | |
218 | fTrackPoints = (in.fTrackPoints)?(AliHBTTrackPoints*)fTrackPoints->Clone():0x0; | |
219 | ||
220 | delete fClusterMap; | |
221 | fClusterMap = (in.fClusterMap)?(AliHBTClusterMap*)in.fClusterMap->Clone():0x0; | |
222 | ||
223 | return *this; | |
224 | } | |
225 | //______________________________________________________________________________ | |
226 | ||
227 | void AliHBTParticle::SetPdgCode(Int_t pdg,Float_t prob) | |
228 | { | |
229 | SetPIDprobability(pdg,prob); | |
230 | fPdgIdx = GetPidSlot(pdg); | |
231 | } | |
232 | ||
233 | //______________________________________________________________________________ | |
234 | void AliHBTParticle::SetPIDprobability(Int_t pdg, Float_t prob) | |
235 | { | |
236 | //Sets another pdg code and corresponding probabilty | |
237 | //Ids are set in decreasing order | |
238 | //Check if total prbaility is not ivercoming unity is performed | |
239 | //in case, warning is printed | |
240 | if (fgDebug > 9) Info("SetPIDprobability","Setting PID %d prob %f",pdg,prob); | |
241 | ||
242 | Float_t totprob = 0.0;//sums up probabilities | |
243 | Int_t idx = GetPidSlot(pdg); | |
244 | Int_t i; | |
245 | if (idx > -1) | |
246 | { | |
247 | fPidProb[idx] = prob; | |
248 | for (i = 0; i < fNPids;i++) totprob+=fPidProb[i]; | |
249 | if (totprob > (1.0+0.000001)) | |
250 | { | |
251 | Warning("SetPIDprobability","Total probability greater than unity (%f)",totprob); | |
252 | } | |
253 | if (fgDebug > 9) | |
254 | { | |
255 | Info("SetPIDprobability","Current Total probability: %f",totprob); | |
256 | } | |
257 | return; | |
258 | } | |
259 | ||
260 | Int_t currentpid = GetPdgCode(); | |
261 | fNPids++; | |
262 | Float_t* aPidProbNew = new Float_t[fNPids]; | |
263 | Int_t* aPidsNew = new Int_t[fNPids]; | |
264 | ||
265 | for (i = 0; i < fNPids-1;i++)//find a slot | |
266 | { | |
267 | if ( fPidProb[i] > prob) | |
268 | { | |
269 | if (fgDebug>9) Info("SetPID","Copying entry %d",i); | |
270 | aPidProbNew[i] = fPidProb[i]; | |
271 | aPidsNew[i] = fPids[i]; | |
272 | totprob+=fPidProb[i]; | |
273 | } | |
274 | else break; | |
275 | } | |
276 | ||
277 | if (fgDebug > 9) Info("SetPID","Setting new PID on entry %d",i); | |
278 | aPidProbNew[i] = prob; | |
279 | aPidsNew[i] = pdg; | |
280 | totprob+=prob; | |
281 | ||
282 | ||
283 | for (Int_t j = fNPids-1; j > i ;j--)//copy rest of old araays | |
284 | { | |
285 | if (fgDebug > 9) Info("SetPID","Copying from old entry %d to new entry %d",j-1,j); | |
286 | aPidProbNew[j] = fPidProb[j-1]; | |
287 | aPidsNew[j] = fPids[j-1]; | |
288 | totprob+=fPidProb[j-1]; | |
289 | } | |
290 | ||
291 | delete [] fPidProb; | |
292 | delete [] fPids; | |
293 | ||
294 | fPidProb = aPidProbNew; | |
295 | fPids = aPidsNew; | |
296 | ||
297 | fPdgIdx = GetPidSlot(currentpid); | |
298 | if (fPdgIdx == -1) fPdgIdx = 0; | |
299 | ||
300 | if (totprob > (1.0+0.000001))//place for numerical error | |
301 | { | |
302 | Warning("SetId","Total probability is greater than unity (%f)!!!",totprob); | |
303 | Print(); | |
304 | } | |
305 | } | |
306 | //______________________________________________________________________________ | |
307 | ||
308 | Float_t AliHBTParticle::GetPIDprobability(Int_t pdg) const | |
309 | { | |
310 | //Returns probability that this particle is the type of pdg | |
311 | Int_t idx = GetPidSlot(pdg); | |
312 | if (idx < 0) return 0.0;//such pid was not specified for this particle | |
313 | return fPidProb[idx]; | |
314 | } | |
315 | //______________________________________________________________________________ | |
316 | ||
317 | const Char_t* AliHBTParticle::GetName() const | |
318 | { | |
319 | //returns name of this particle | |
320 | static char def[4] = "XXX"; | |
321 | const TParticlePDG *ap = TDatabasePDG::Instance()->GetParticle(GetPdgCode()); | |
322 | if (ap) return ap->GetName(); | |
323 | else return def; | |
324 | } | |
325 | //______________________________________________________________________________ | |
326 | ||
327 | Int_t AliHBTParticle::GetPidSlot(Int_t pdg) const | |
328 | { | |
329 | //returns position of the given PID in fPids (and fPidProb) array. | |
330 | if (fPids == 0x0) return -1; | |
331 | for (Int_t i = 0; i< fNPids; i++) | |
332 | { | |
333 | if (fPids[i] == pdg) return i; | |
334 | } | |
335 | return -1; | |
336 | } | |
337 | //______________________________________________________________________________ | |
338 | ||
339 | Int_t AliHBTParticle::GetNthPid(Int_t idx) const | |
340 | { | |
341 | //returns PID sitting on slot idx in fPids | |
342 | if ( (idx < 0) || (idx >= fNPids) ) | |
343 | { | |
344 | Error("GetNthPid","Out Of Bounds"); | |
345 | return 0; | |
346 | } | |
347 | return fPids[idx]; | |
348 | } | |
349 | //______________________________________________________________________________ | |
350 | ||
351 | Float_t AliHBTParticle::GetNthPidProb(Int_t idx) const | |
352 | { | |
353 | //returns PID sitting on slot idx in fPidProb | |
354 | if ( (idx < 0) || (idx >= fNPids) ) | |
355 | { | |
356 | Error("GetNthPid","Out Of Bounds"); | |
357 | return 0; | |
358 | } | |
359 | return fPidProb[idx]; | |
360 | } | |
361 | //______________________________________________________________________________ | |
362 | ||
363 | void AliHBTParticle::Print() const | |
364 | { | |
365 | //prints information about particle | |
366 | printf("____________________________________________________\n"); | |
367 | printf("Idx: %d PID: %d Name: ",fIdxInEvent,GetPdgCode()); | |
368 | TParticlePDG *pdgp = TDatabasePDG::Instance()->GetParticle(GetPdgCode()); | |
369 | if (pdgp) | |
370 | { | |
371 | printf("%s Mass: %f\n",pdgp->GetName(),pdgp->Mass()); | |
372 | } | |
373 | else | |
374 | { | |
375 | printf("Not known\n"); | |
376 | } | |
377 | ||
378 | printf("Px: %+f Py: %+f Pz: %+f E: %+f Calculated Mass: %f\nVx: %+f Vy: %+f Vz: %+f T: %+f\n", | |
379 | Px(),Py(),Pz(),Energy(),GetCalcMass(),Vx(),Vy(),Vz(),T()); | |
380 | ||
381 | for (Int_t i = 0; i < fNPids; i++) | |
382 | { | |
383 | printf("# %d PID: %d Probability %f name ",i,fPids[i],fPidProb[i]); | |
384 | const TParticlePDG *ap = TDatabasePDG::Instance()->GetParticle(fPids[i]); | |
385 | if (ap) | |
386 | { | |
387 | printf("%s Mass %f\n",ap->GetName(),ap->Mass()); | |
388 | } | |
389 | else | |
390 | { | |
391 | printf("Not known\n"); | |
392 | } | |
393 | } | |
394 | } | |
395 | ||
396 | //______________________________________________________________________________ | |
397 | ||
398 | //void AliHBTParticle::Streamer(TBuffer &b) | |
399 | //{ | |
400 | // // Stream all objects in the array to or from the I/O buffer. | |
401 | // UInt_t R__s, R__c; | |
402 | // Int_t i; | |
403 | // if (b.IsReading()) | |
404 | // { | |
405 | // delete [] fPids; | |
406 | // delete [] fPidProb; | |
407 | // | |
408 | // Version_t v = b.ReadVersion(&R__s, &R__c); | |
409 | // if (v == 1) | |
410 | // { | |
411 | // AliHBTParticle::Class()->ReadBuffer(b, this); | |
412 | // } | |
413 | // else | |
414 | // { | |
415 | // TObject::Streamer(b); | |
416 | // b >> fPdgIdx; | |
417 | // b >> fIdxInEvent; | |
418 | // | |
419 | // b >> fNPids; | |
420 | // Int_t* fPids = new Int_t[fNPids]; | |
421 | // Float_t* fPidProb = new Float_t[fNPids]; | |
422 | // for (i = 0;i<fNPids;i++) | |
423 | // { | |
424 | // b >> fPids[i]; | |
425 | // } | |
426 | // for (i = 0;i<fNPids;i++) | |
427 | // { | |
428 | // b >> fPidProb[i]; | |
429 | // } | |
430 | // b >> fCalcMass; | |
431 | // | |
432 | // b >> fPx; | |
433 | // b >> fPy; | |
434 | // b >> fPz; | |
435 | // b >> fE; | |
436 | // | |
437 | // b >> fVx; | |
438 | // b >> fVy; | |
439 | // b >> fVz; | |
440 | // b >> fVt; | |
441 | // Info("Streamer","Read data"); | |
442 | // Print(); | |
443 | // } | |
444 | // | |
445 | // b.CheckByteCount(R__s, R__c,AliHBTParticle::IsA()); | |
446 | // } | |
447 | // else | |
448 | // { | |
449 | // R__c = b.WriteVersion(AliHBTParticle::IsA(), kTRUE); | |
450 | // TObject::Streamer(b); | |
451 | // Info("Streamer","Read data"); | |
452 | // Print(); | |
453 | // | |
454 | // b << fPdgIdx; | |
455 | // b << fIdxInEvent; | |
456 | // b << fNPids; | |
457 | // for (i = 0;i<fNPids;i++) | |
458 | // { | |
459 | // b << fPids[i]; | |
460 | // } | |
461 | // { | |
462 | // { | |
463 | // for (i = 0;i<fNPids;i++) | |
464 | // { | |
465 | // b << fPidProb[i]; | |
466 | // } | |
467 | // b << fCalcMass; | |
468 | // | |
469 | // b << fPx; | |
470 | // b << fPy; | |
471 | // b << fPz; | |
472 | // b << fE; | |
473 | // | |
474 | // b << fVx; | |
475 | // b << fVy; | |
476 | // b << fVz; | |
477 | // b << fVt; | |
478 | // | |
479 | // b.SetByteCount(R__c, kTRUE); | |
480 | // } | |
481 | //} | |
482 | #endif |