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1b446896 | 1 | //Simplified TParticle class |
1b446896 | 2 | #include "AliHBTParticle.h" |
1b446896 | 3 | #include <TParticle.h> |
ff3d1148 | 4 | #include <TClass.h> |
1b446896 | 5 | |
6 | ClassImp(AliHBTParticle) | |
7 | ||
8089a083 | 8 | Int_t AliHBTParticle::fgDebug = 0; |
1b446896 | 9 | //______________________________________________________________________________ |
10 | AliHBTParticle::AliHBTParticle(): | |
8089a083 | 11 | fPdgIdx(0), fIdxInEvent(0),fNPids(0),fPids(0x0),fPidProb(0x0), |
12 | fCalcMass(0),fPx(0), fPy(0),fPz(0),fE(0), fVx(0), fVy(0),fVz(0),fVt(0) | |
1b446896 | 13 | {//empty particle |
14 | } | |
8089a083 | 15 | //______________________________________________________________________________ |
1b446896 | 16 | |
8089a083 | 17 | AliHBTParticle::AliHBTParticle(Int_t pdg, Int_t idx, |
18 | Double_t px, Double_t py, Double_t pz, Double_t etot, | |
19 | Double_t vx, Double_t vy, Double_t vz, Double_t time): | |
e665964c | 20 | fPdgIdx(0), fIdxInEvent(idx),fNPids(0),fPids(0x0),fPidProb(0x0), |
8089a083 | 21 | fCalcMass(0), |
22 | fPx(px), fPy(py),fPz(pz),fE(etot), | |
23 | fVx(vx), fVy(vy),fVz(vz),fVt(time) | |
24 | { | |
25 | //mormal constructor | |
26 | SetPdgCode(pdg); | |
27 | if (GetPDG()) { | |
28 | fCalcMass = GetPDG()->Mass(); | |
29 | } else { | |
30 | Double_t a2 = fE*fE -fPx*fPx -fPy*fPy -fPz*fPz; | |
31 | if (a2 >= 0) fCalcMass = TMath::Sqrt(a2); | |
32 | else fCalcMass = -TMath::Sqrt(-a2); | |
33 | } | |
34 | } | |
1b446896 | 35 | //______________________________________________________________________________ |
8089a083 | 36 | |
37 | AliHBTParticle::AliHBTParticle(Int_t pdg, Float_t prob, Int_t idx, | |
38 | Double_t px, Double_t py, Double_t pz, Double_t etot, | |
39 | Double_t vx, Double_t vy, Double_t vz, Double_t time): | |
e665964c | 40 | fPdgIdx(0), fIdxInEvent(idx),fNPids(0),fPids(0x0),fPidProb(0x0), |
8089a083 | 41 | fCalcMass(0), |
35d14c47 | 42 | fPx(px), fPy(py),fPz(pz),fE(etot), |
43 | fVx(vx), fVy(vy),fVz(vz),fVt(time) | |
1b446896 | 44 | { |
45 | //mormal constructor | |
8089a083 | 46 | SetPdgCode(pdg,prob); |
1b446896 | 47 | if (GetPDG()) { |
48 | fCalcMass = GetPDG()->Mass(); | |
49 | } else { | |
50 | Double_t a2 = fE*fE -fPx*fPx -fPy*fPy -fPz*fPz; | |
51 | if (a2 >= 0) fCalcMass = TMath::Sqrt(a2); | |
52 | else fCalcMass = -TMath::Sqrt(-a2); | |
53 | } | |
54 | } | |
8089a083 | 55 | //______________________________________________________________________________ |
56 | AliHBTParticle::AliHBTParticle(const AliHBTParticle& in): | |
bed069a4 | 57 | TObject(in), |
8089a083 | 58 | fPdgIdx(in.fPdgIdx), fIdxInEvent(in.fIdxInEvent), |
59 | fNPids(in.fNPids),fPids(new Int_t[fNPids]),fPidProb(new Float_t[fNPids]), | |
60 | fCalcMass(in.GetCalcMass()), | |
61 | fPx(in.Px()),fPy(in.Py()),fPz(in.Pz()),fE(in.Energy()), | |
62 | fVx(in.Vx()),fVy(in.Vy()),fVz(in.Vz()),fVt(in.T()) | |
63 | { | |
64 | //Copy constructor | |
65 | for(Int_t i = 0; i<fNPids; i++) | |
66 | { | |
67 | fPids[i] = in.fPids[i]; | |
68 | fPidProb[i] = in.fPidProb[i]; | |
69 | } | |
70 | } | |
1b446896 | 71 | |
72 | //______________________________________________________________________________ | |
8089a083 | 73 | AliHBTParticle::AliHBTParticle(const TParticle &p,Int_t idx): |
74 | fPdgIdx(0), fIdxInEvent(idx), | |
75 | fNPids(0),fPids(0x0),fPidProb(0x0), | |
76 | fCalcMass(p.GetCalcMass()), | |
1b446896 | 77 | fPx(p.Px()),fPy(p.Py()),fPz(p.Pz()),fE(p.Energy()), |
78 | fVx(p.Vx()),fVy(p.Vy()),fVz(p.Vz()),fVt(p.T()) | |
79 | { | |
80 | //all copied in the initialization | |
8089a083 | 81 | SetPdgCode(p.GetPdgCode()); |
82 | } | |
83 | //______________________________________________________________________________ | |
84 | ||
bed069a4 | 85 | AliHBTParticle::~AliHBTParticle() |
86 | { | |
87 | //dtor | |
88 | delete [] fPids; | |
89 | delete [] fPidProb; | |
90 | } | |
91 | //______________________________________________________________________________ | |
92 | ||
93 | AliHBTParticle& AliHBTParticle::operator=(const AliHBTParticle& in) | |
94 | { | |
95 | //assigment operator | |
96 | ||
97 | fNPids = in.fNPids; | |
98 | delete [] fPids; | |
99 | delete [] fPidProb; | |
100 | Int_t* fPids = new Int_t[fNPids]; | |
101 | Float_t* fPidProb = new Float_t[fNPids]; | |
102 | for (Int_t i = 0; i < fNPids;i++) | |
103 | { | |
104 | fPids[i] = in.fPids[i]; | |
105 | fPidProb[i] = in.fPidProb[i]; | |
106 | } | |
107 | ||
108 | fPdgIdx = in.fPdgIdx; | |
109 | fIdxInEvent = in.fIdxInEvent; | |
110 | fCalcMass = in.GetCalcMass(); | |
111 | fPx = in.Px(); | |
112 | fPy = in.Py(); | |
113 | fPz = in.Pz(); | |
114 | fE = in.Energy(); | |
115 | fVx = in.Vx(); | |
116 | fVy = in.Vy(); | |
117 | fVz = in.Vz(); | |
118 | fVt = in.T(); | |
119 | ||
120 | return *this; | |
121 | } | |
122 | //______________________________________________________________________________ | |
123 | ||
8089a083 | 124 | void AliHBTParticle::SetPdgCode(Int_t pdg,Float_t prob) |
125 | { | |
126 | SetPIDprobability(pdg,prob); | |
127 | fPdgIdx = GetPidSlot(pdg); | |
1b446896 | 128 | } |
129 | ||
130 | //______________________________________________________________________________ | |
8089a083 | 131 | void AliHBTParticle::SetPIDprobability(Int_t pdg, Float_t prob) |
132 | { | |
133 | //Sets another pdg code and corresponding probabilty | |
134 | //Ids are set in decreasing order | |
135 | //Check if total prbaility is not ivercoming unity is performed | |
136 | //in case, warning is printed | |
e665964c | 137 | if (fgDebug > 9) Info("SetPIDprobability","Setting PID %d prob %f",pdg,prob); |
8089a083 | 138 | |
139 | Float_t totprob = 0.0;//sums up probabilities | |
140 | Int_t idx = GetPidSlot(pdg); | |
141 | Int_t i; | |
142 | if (idx > -1) | |
143 | { | |
144 | fPidProb[idx] = prob; | |
145 | for (i = 0; i < fNPids;i++) totprob+=fPidProb[i]; | |
e665964c | 146 | if (totprob > (1.0+0.000001)) |
8089a083 | 147 | { |
e665964c | 148 | Warning("SetPIDprobability","Total probability greater than unity (%f)",totprob); |
8089a083 | 149 | } |
e665964c | 150 | if (fgDebug > 9) |
8089a083 | 151 | { |
152 | Info("SetPIDprobability","Current Total probability: %f",totprob); | |
153 | } | |
154 | return; | |
155 | } | |
156 | ||
157 | Int_t currentpid = GetPdgCode(); | |
158 | fNPids++; | |
159 | Float_t* aPidProbNew = new Float_t[fNPids]; | |
160 | Int_t* aPidsNew = new Int_t[fNPids]; | |
161 | ||
162 | for (i = 0; i < fNPids-1;i++)//find a slot | |
163 | { | |
164 | if ( fPidProb[i] > prob) | |
165 | { | |
e665964c | 166 | if (fgDebug>9) Info("SetPID","Copying entry %d",i); |
8089a083 | 167 | aPidProbNew[i] = fPidProb[i]; |
168 | aPidsNew[i] = fPids[i]; | |
169 | totprob+=fPidProb[i]; | |
170 | } | |
171 | else break; | |
172 | } | |
173 | ||
e665964c | 174 | if (fgDebug > 9) Info("SetPID","Setting new PID on entry %d",i); |
8089a083 | 175 | aPidProbNew[i] = prob; |
176 | aPidsNew[i] = pdg; | |
177 | totprob+=prob; | |
178 | ||
179 | ||
e665964c | 180 | for (Int_t j = fNPids-1; j > i ;j--)//copy rest of old araays |
8089a083 | 181 | { |
e665964c | 182 | if (fgDebug > 9) Info("SetPID","Copying from old entry %d to new entry %d",j-1,j); |
8089a083 | 183 | aPidProbNew[j] = fPidProb[j-1]; |
184 | aPidsNew[j] = fPids[j-1]; | |
185 | totprob+=fPidProb[j-1]; | |
186 | } | |
187 | ||
8089a083 | 188 | delete [] fPidProb; |
189 | delete [] fPids; | |
190 | ||
191 | fPidProb = aPidProbNew; | |
192 | fPids = aPidsNew; | |
193 | ||
194 | fPdgIdx = GetPidSlot(currentpid); | |
195 | if (fPdgIdx == -1) fPdgIdx = 0; | |
e665964c | 196 | |
197 | if (totprob > (1.0+0.000001))//place for numerical error | |
198 | { | |
199 | Warning("SetId","Total probability is greater than unity (%f)!!!",totprob); | |
200 | Print(); | |
201 | } | |
8089a083 | 202 | } |
203 | //______________________________________________________________________________ | |
204 | ||
205 | Float_t AliHBTParticle::GetPIDprobability(Int_t pdg) | |
206 | { | |
207 | Int_t idx = GetPidSlot(pdg); | |
208 | if (idx < 0) return 0.0;//such pid was not specified for this particle | |
209 | return fPidProb[idx]; | |
210 | } | |
211 | //______________________________________________________________________________ | |
212 | ||
1b446896 | 213 | const Char_t* AliHBTParticle::GetName() const |
214 | { | |
215 | static char def[4] = "XXX"; | |
8089a083 | 216 | const TParticlePDG *ap = TDatabasePDG::Instance()->GetParticle(GetPdgCode()); |
1b446896 | 217 | if (ap) return ap->GetName(); |
218 | else return def; | |
219 | } | |
220 | ||
221 | ||
222 | //______________________________________________________________________________ | |
8089a083 | 223 | Int_t AliHBTParticle::GetPidSlot(Int_t pdg) const |
224 | { | |
225 | //returns position of the given PID in fPids (and fPidProb) array. | |
226 | if (fPids == 0x0) return -1; | |
227 | for (Int_t i = 0; i< fNPids; i++) | |
228 | { | |
229 | if (fPids[i] == pdg) return i; | |
230 | } | |
231 | return -1; | |
232 | } | |
e665964c | 233 | //______________________________________________________________________________ |
234 | ||
235 | Int_t AliHBTParticle::GetNthPid(Int_t idx) const | |
236 | { | |
237 | //returns PID sitting on slot idx in fPids | |
238 | if ( (idx < 0) || (idx >= fNPids) ) | |
239 | { | |
240 | Error("GetNthPid","Out Of Bounds"); | |
241 | return 0; | |
242 | } | |
243 | return fPids[idx]; | |
244 | } | |
245 | //______________________________________________________________________________ | |
1b446896 | 246 | |
e665964c | 247 | Float_t AliHBTParticle::GetNthPidProb(Int_t idx) const |
248 | { | |
249 | //returns PID sitting on slot idx in fPidProb | |
250 | if ( (idx < 0) || (idx >= fNPids) ) | |
251 | { | |
252 | Error("GetNthPid","Out Of Bounds"); | |
253 | return 0; | |
254 | } | |
255 | return fPidProb[idx]; | |
256 | } | |
8089a083 | 257 | //______________________________________________________________________________ |
e665964c | 258 | |
8089a083 | 259 | void AliHBTParticle::Print() const |
260 | { | |
261 | //prints information about particle | |
262 | printf("____________________________________________________\n"); | |
e665964c | 263 | printf("Idx: %d PID: %d Name: ",fIdxInEvent,GetPdgCode()); |
8089a083 | 264 | TParticlePDG *pdgp = TDatabasePDG::Instance()->GetParticle(GetPdgCode()); |
265 | if (pdgp) | |
266 | { | |
e665964c | 267 | printf("%s Mass: %f\n",pdgp->GetName(),pdgp->Mass()); |
8089a083 | 268 | } |
269 | else | |
270 | { | |
271 | printf("Not known\n"); | |
272 | } | |
273 | ||
ff3d1148 | 274 | printf("Px: %+f Py: %+f Pz: %+f E: %+f Calculated Mass: %f\nVx: %+f Vy: %+f Vz: %+f T: %+f\n", |
8089a083 | 275 | Px(),Py(),Pz(),Energy(),GetCalcMass(),Vx(),Vy(),Vz(),T()); |
1b446896 | 276 | |
8089a083 | 277 | for (Int_t i = 0; i < fNPids; i++) |
278 | { | |
ff3d1148 | 279 | printf("# %d PID: %d Probability %f name ",i,fPids[i],fPidProb[i]); |
8089a083 | 280 | const TParticlePDG *ap = TDatabasePDG::Instance()->GetParticle(fPids[i]); |
281 | if (ap) | |
282 | { | |
283 | printf("%s Mass %f\n",ap->GetName(),ap->Mass()); | |
284 | } | |
285 | else | |
286 | { | |
287 | printf("Not known\n"); | |
288 | } | |
289 | } | |
290 | } | |
ff3d1148 | 291 | |
292 | //______________________________________________________________________________ | |
293 | ||
294 | //void AliHBTParticle::Streamer(TBuffer &b) | |
295 | //{ | |
296 | // // Stream all objects in the array to or from the I/O buffer. | |
297 | // UInt_t R__s, R__c; | |
298 | // Int_t i; | |
299 | // if (b.IsReading()) | |
300 | // { | |
301 | // delete [] fPids; | |
302 | // delete [] fPidProb; | |
303 | // | |
304 | // Version_t v = b.ReadVersion(&R__s, &R__c); | |
305 | // if (v == 1) | |
306 | // { | |
307 | // AliHBTParticle::Class()->ReadBuffer(b, this); | |
308 | // } | |
309 | // else | |
310 | // { | |
311 | // TObject::Streamer(b); | |
312 | // b >> fPdgIdx; | |
313 | // b >> fIdxInEvent; | |
314 | // | |
315 | // b >> fNPids; | |
316 | // Int_t* fPids = new Int_t[fNPids]; | |
317 | // Float_t* fPidProb = new Float_t[fNPids]; | |
318 | // for (i = 0;i<fNPids;i++) | |
319 | // { | |
320 | // b >> fPids[i]; | |
321 | // } | |
322 | // for (i = 0;i<fNPids;i++) | |
323 | // { | |
324 | // b >> fPidProb[i]; | |
325 | // } | |
326 | // b >> fCalcMass; | |
327 | // | |
328 | // b >> fPx; | |
329 | // b >> fPy; | |
330 | // b >> fPz; | |
331 | // b >> fE; | |
332 | // | |
333 | // b >> fVx; | |
334 | // b >> fVy; | |
335 | // b >> fVz; | |
336 | // b >> fVt; | |
337 | // Info("Streamer","Read data"); | |
338 | // Print(); | |
339 | // } | |
340 | // | |
341 | // b.CheckByteCount(R__s, R__c,AliHBTParticle::IsA()); | |
342 | // } | |
343 | // else | |
344 | // { | |
345 | // R__c = b.WriteVersion(AliHBTParticle::IsA(), kTRUE); | |
346 | // TObject::Streamer(b); | |
347 | // Info("Streamer","Read data"); | |
348 | // Print(); | |
349 | // | |
350 | // b << fPdgIdx; | |
351 | // b << fIdxInEvent; | |
352 | // b << fNPids; | |
353 | // for (i = 0;i<fNPids;i++) | |
354 | // { | |
355 | // b << fPids[i]; | |
356 | // } | |
357 | // { | |
358 | // { | |
359 | // for (i = 0;i<fNPids;i++) | |
360 | // { | |
361 | // b << fPidProb[i]; | |
362 | // } | |
363 | // b << fCalcMass; | |
364 | // | |
365 | // b << fPx; | |
366 | // b << fPy; | |
367 | // b << fPz; | |
368 | // b << fE; | |
369 | // | |
370 | // b << fVx; | |
371 | // b << fVy; | |
372 | // b << fVz; | |
373 | // b << fVt; | |
374 | // | |
375 | // b.SetByteCount(R__c, kTRUE); | |
376 | // } | |
377 | //} |