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c92725b7 | 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 | ||
16 | ||
17 | /////////////////////////////////////////////////////////////////////////// | |
18 | /* | |
19 | ||
20 | Origin: marian.ivanov@cern.ch | |
21 | ||
22 | Generate complex MC information - used for Comparison later on | |
23 | How to use it? | |
24 | ||
022044bf | 25 | gSystem->Load("libPWG1.so") |
c92725b7 | 26 | AliGenInfoMaker *t = new AliGenInfoMaker("galice.root","genTracks.root",0,0) |
27 | t->Exec(); | |
28 | ||
29 | */ | |
30 | ||
31 | #if !defined(__CINT__) || defined(__MAKECINT__) | |
32 | #include <stdio.h> | |
33 | #include <string.h> | |
34 | //ROOT includes | |
35 | #include "TROOT.h" | |
36 | #include "Rtypes.h" | |
37 | #include "TFile.h" | |
38 | #include "TTree.h" | |
39 | #include "TChain.h" | |
40 | #include "TCut.h" | |
41 | #include "TString.h" | |
c92725b7 | 42 | #include "TStopwatch.h" |
43 | #include "TParticle.h" | |
44 | #include "TSystem.h" | |
c92725b7 | 45 | #include "TCanvas.h" |
c92725b7 | 46 | #include "TGeometry.h" |
47 | #include "TPolyLine3D.h" | |
48 | ||
49 | //ALIROOT includes | |
50 | #include "AliRun.h" | |
51 | #include "AliStack.h" | |
52 | #include "AliSimDigits.h" | |
53 | #include "AliTPCParam.h" | |
54 | #include "AliTPC.h" | |
55 | #include "AliTPCLoader.h" | |
56 | #include "AliDetector.h" | |
57 | #include "AliTrackReference.h" | |
58 | #include "AliTPCParamSR.h" | |
59 | #include "AliTracker.h" | |
60 | #include "AliMagF.h" | |
61 | #include "AliHelix.h" | |
c92725b7 | 62 | #include "AliTrackPointArray.h" |
63 | ||
64 | #endif | |
65 | #include "AliGenInfo.h" | |
66 | // | |
67 | // | |
68 | ||
69 | ClassImp(AliTPCdigitRow); | |
70 | ClassImp(AliMCInfo); | |
71 | ClassImp(AliGenV0Info) | |
72 | ClassImp(AliGenKinkInfo) | |
73 | ClassImp(AliGenInfoMaker) | |
74 | ||
75 | ||
76 | ||
77 | AliTPCParam * GetTPCParam(){ | |
78 | AliTPCParamSR * par = new AliTPCParamSR; | |
79 | par->Update(); | |
80 | return par; | |
81 | } | |
82 | ||
83 | ||
84 | //_____________________________________________________________________________ | |
85 | Float_t TPCBetheBloch(Float_t bg) | |
86 | { | |
87 | // | |
88 | // Bethe-Bloch energy loss formula | |
89 | // | |
90 | const Double_t kp1=0.76176e-1; | |
91 | const Double_t kp2=10.632; | |
92 | const Double_t kp3=0.13279e-4; | |
93 | const Double_t kp4=1.8631; | |
94 | const Double_t kp5=1.9479; | |
95 | ||
96 | Double_t dbg = (Double_t) bg; | |
97 | ||
98 | Double_t beta = dbg/TMath::Sqrt(1.+dbg*dbg); | |
99 | ||
100 | Double_t aa = TMath::Power(beta,kp4); | |
101 | Double_t bb = TMath::Power(1./dbg,kp5); | |
102 | ||
103 | bb=TMath::Log(kp3+bb); | |
104 | ||
105 | return ((Float_t)((kp2-aa-bb)*kp1/aa)); | |
106 | } | |
107 | ||
108 | ||
109 | ||
110 | ||
111 | ||
112 | //////////////////////////////////////////////////////////////////////// | |
022044bf | 113 | AliMCInfo::AliMCInfo(): |
114 | fTrackRef(), | |
115 | fTrackRefOut(), | |
116 | fTRdecay(), | |
117 | fPrimPart(0), | |
118 | fParticle(), | |
119 | fMass(0), | |
120 | fCharge(0), | |
121 | fLabel(0), | |
122 | fEventNr(), | |
123 | fMCtracks(), | |
124 | fPdg(0), | |
125 | fTPCdecay(0), | |
126 | fRowsWithDigitsInn(0), | |
127 | fRowsWithDigits(0), | |
128 | fRowsTrackLength(0), | |
129 | fPrim(0), | |
130 | fTPCRow(), | |
131 | fNTPCRef(0), // tpc references counter | |
132 | fNITSRef(0), // ITS references counter | |
133 | fNTRDRef(0), // TRD references counter | |
134 | fNTOFRef(0), // TOF references counter | |
135 | fTPCReferences(0), | |
136 | fITSReferences(0), | |
137 | fTRDReferences(0), | |
138 | fTOFReferences(0) | |
c92725b7 | 139 | { |
140 | fTPCReferences = new TClonesArray("AliTrackReference",10); | |
141 | fITSReferences = new TClonesArray("AliTrackReference",10); | |
142 | fTRDReferences = new TClonesArray("AliTrackReference",10); | |
143 | fTOFReferences = new TClonesArray("AliTrackReference",10); | |
144 | fTRdecay.SetTrack(-1); | |
145 | fCharge = 0; | |
146 | } | |
147 | ||
022044bf | 148 | AliMCInfo::AliMCInfo(const AliMCInfo& info): |
149 | TObject(), | |
150 | fTrackRef(info.fTrackRef), | |
151 | fTrackRefOut(info.fTrackRefOut), | |
152 | fTRdecay(info.fTRdecay), | |
153 | fPrimPart(info.fPrimPart), | |
154 | fParticle(info.fParticle), | |
155 | fMass(info.fMass), | |
156 | fCharge(info.fCharge), | |
157 | fLabel(info.fLabel), | |
158 | fEventNr(info.fEventNr), | |
159 | fMCtracks(info.fMCtracks), | |
160 | fPdg(info.fPdg), | |
161 | fTPCdecay(info.fTPCdecay), | |
162 | fRowsWithDigitsInn(info.fRowsWithDigitsInn), | |
163 | fRowsWithDigits(info.fRowsWithDigits), | |
164 | fRowsTrackLength(info.fRowsTrackLength), | |
165 | fPrim(info.fPrim), | |
166 | fTPCRow(info.fTPCRow), | |
167 | fNTPCRef(info.fNTPCRef), // tpc references counter | |
168 | fNITSRef(info.fNITSRef), // ITS references counter | |
169 | fNTRDRef(info.fNTRDRef), // TRD references counter | |
170 | fNTOFRef(info.fNTOFRef), // TOF references counter | |
171 | fTPCReferences(0), | |
172 | fITSReferences(0), | |
173 | fTRDReferences(0), | |
174 | fTOFReferences(0) | |
175 | { | |
176 | fTPCReferences = (TClonesArray*)info.fTPCReferences->Clone(); | |
177 | fITSReferences = (TClonesArray*)info.fITSReferences->Clone(); | |
178 | fTRDReferences = (TClonesArray*)info.fTRDReferences->Clone(); | |
179 | fTOFReferences = (TClonesArray*)info.fTOFReferences->Clone(); | |
180 | } | |
181 | ||
182 | ||
c92725b7 | 183 | AliMCInfo::~AliMCInfo() |
184 | { | |
185 | if (fTPCReferences) { | |
186 | delete fTPCReferences; | |
187 | } | |
188 | if (fITSReferences){ | |
189 | delete fITSReferences; | |
190 | } | |
191 | if (fTRDReferences){ | |
192 | delete fTRDReferences; | |
193 | } | |
194 | if (fTOFReferences){ | |
195 | delete fTOFReferences; | |
196 | } | |
197 | ||
198 | } | |
199 | ||
200 | ||
201 | ||
202 | void AliMCInfo::Update() | |
203 | { | |
204 | // | |
205 | // | |
206 | fMCtracks =1; | |
207 | if (!fTPCReferences) { | |
208 | fNTPCRef =0; | |
209 | return; | |
210 | } | |
211 | Float_t direction=1; | |
212 | //Float_t rlast=0; | |
213 | fNTPCRef = fTPCReferences->GetEntriesFast(); | |
214 | fNITSRef = fITSReferences->GetEntriesFast(); | |
215 | fNTRDRef = fTRDReferences->GetEntriesFast(); | |
216 | fNTOFRef = fTOFReferences->GetEntriesFast(); | |
217 | ||
218 | for (Int_t iref =0;iref<fTPCReferences->GetEntriesFast();iref++){ | |
219 | AliTrackReference * ref = (AliTrackReference *) fTPCReferences->At(iref); | |
220 | //Float_t r = (ref->X()*ref->X()+ref->Y()*ref->Y()); | |
221 | Float_t newdirection = ref->X()*ref->Px()+ref->Y()*ref->Py(); //inside or outside | |
222 | if (iref==0) direction = newdirection; | |
223 | if ( newdirection*direction<0){ | |
224 | //changed direction | |
225 | direction = newdirection; | |
226 | fMCtracks+=1; | |
227 | } | |
228 | //rlast=r; | |
229 | } | |
230 | // | |
231 | // decay info | |
232 | fTPCdecay=kFALSE; | |
233 | if (fTRdecay.GetTrack()>0){ | |
234 | fDecayCoord[0] = fTRdecay.X(); | |
235 | fDecayCoord[1] = fTRdecay.Y(); | |
236 | fDecayCoord[2] = fTRdecay.Z(); | |
237 | if ( (fTRdecay.R()<250)&&(fTRdecay.R()>85) && (TMath::Abs(fTRdecay.Z())<250) ){ | |
238 | fTPCdecay=kTRUE; | |
239 | } | |
240 | else{ | |
241 | fDecayCoord[0] = 0; | |
242 | fDecayCoord[1] = 0; | |
243 | fDecayCoord[2] = 0; | |
244 | } | |
245 | } | |
246 | // | |
247 | // | |
248 | //digits information update | |
249 | fRowsWithDigits = fTPCRow.RowsOn(); | |
250 | fRowsWithDigitsInn = fTPCRow.RowsOn(63); // 63 = number of inner rows | |
251 | fRowsTrackLength = fTPCRow.Last() - fTPCRow.First(); | |
252 | // | |
253 | // | |
254 | // calculate primary ionization per cm | |
255 | if (fParticle.GetPDG()){ | |
256 | fMass = fParticle.GetMass(); | |
257 | fCharge = fParticle.GetPDG()->Charge(); | |
258 | if (fTPCReferences->GetEntriesFast()>0){ | |
259 | fTrackRef = *((AliTrackReference*)fTPCReferences->At(0)); | |
260 | } | |
261 | if (fMass>0){ | |
262 | Float_t p = TMath::Sqrt(fTrackRef.Px()*fTrackRef.Px()+ | |
263 | fTrackRef.Py()*fTrackRef.Py()+ | |
264 | fTrackRef.Pz()*fTrackRef.Pz()); | |
265 | if (p>0.001){ | |
266 | Float_t betagama = p /fMass; | |
267 | fPrim = TPCBetheBloch(betagama); | |
268 | }else fPrim=0; | |
269 | } | |
270 | }else{ | |
271 | fMass =0; | |
272 | fPrim =0; | |
273 | } | |
274 | } | |
275 | ||
276 | ///////////////////////////////////////////////////////////////////////////////// | |
022044bf | 277 | AliGenV0Info::AliGenV0Info(): |
278 | fMCd(), //info about daughter particle - | |
279 | fMCm(), //info about mother particle - first particle for V0 | |
280 | fMotherP(), //particle info about mother particle | |
281 | fMCDist1(0), //info about closest distance according closest MC - linear DCA | |
282 | fMCDist2(0), //info about closest distance parabolic DCA | |
283 | fMCRr(0), // rec position of the vertex | |
284 | fMCR(0), //exact r position of the vertex | |
285 | fInvMass(0), //reconstructed invariant mass - | |
286 | fPointAngleFi(0), //point angle fi | |
287 | fPointAngleTh(0), //point angle theta | |
288 | fPointAngle(0) //point angle full | |
c92725b7 | 289 | { |
022044bf | 290 | for (Int_t i=0;i<3; i++){ |
291 | fMCPdr[i]=0; | |
292 | fMCX[i]=0; | |
293 | fMCXr[i]=0; | |
294 | fMCPm[i]=0; | |
295 | fMCAngle[i]=0; | |
296 | fMCPd[i]=0; | |
297 | } | |
298 | fMCPd[3]=0; | |
299 | for (Int_t i=0; i<2;i++){ | |
300 | fPdg[i]=0; | |
301 | fLab[i]=0; | |
302 | } | |
c92725b7 | 303 | } |
c92725b7 | 304 | |
305 | void AliGenV0Info::Update(Float_t vertex[3]) | |
306 | { | |
022044bf | 307 | // |
308 | // Update information - calculates derived variables | |
309 | // | |
310 | ||
c92725b7 | 311 | fMCPd[0] = fMCd.fParticle.Px(); |
312 | fMCPd[1] = fMCd.fParticle.Py(); | |
313 | fMCPd[2] = fMCd.fParticle.Pz(); | |
314 | fMCPd[3] = fMCd.fParticle.P(); | |
315 | // | |
316 | fMCX[0] = fMCd.fParticle.Vx(); | |
317 | fMCX[1] = fMCd.fParticle.Vy(); | |
318 | fMCX[2] = fMCd.fParticle.Vz(); | |
319 | fMCR = TMath::Sqrt( fMCX[0]*fMCX[0]+fMCX[1]*fMCX[1]); | |
320 | // | |
321 | fPdg[0] = fMCd.fParticle.GetPdgCode(); | |
322 | fPdg[1] = fMCm.fParticle.GetPdgCode(); | |
323 | // | |
324 | fLab[0] = fMCd.fParticle.GetUniqueID(); | |
325 | fLab[1] = fMCm.fParticle.GetUniqueID(); | |
326 | // | |
327 | // | |
328 | // | |
329 | Double_t x1[3],p1[3]; | |
330 | TParticle & pdaughter = fMCd.fParticle; | |
331 | x1[0] = pdaughter.Vx(); | |
332 | x1[1] = pdaughter.Vy(); | |
333 | x1[2] = pdaughter.Vz(); | |
334 | p1[0] = pdaughter.Px(); | |
335 | p1[1] = pdaughter.Py(); | |
336 | p1[2] = pdaughter.Pz(); | |
337 | Double_t sign = (pdaughter.GetPDG()->Charge()>0)? -1:1; | |
338 | AliHelix dhelix1(x1,p1,sign); | |
339 | // | |
340 | // | |
341 | Double_t x2[3],p2[3]; | |
342 | // | |
343 | TParticle & pmother = fMCm.fParticle; | |
344 | x2[0] = pmother.Vx(); | |
345 | x2[1] = pmother.Vy(); | |
346 | x2[2] = pmother.Vz(); | |
347 | p2[0] = pmother.Px(); | |
348 | p2[1] = pmother.Py(); | |
349 | p2[2] = pmother.Pz(); | |
350 | // | |
351 | // | |
352 | sign = (pmother.GetPDG()->Charge()>0) ? -1:1; | |
353 | AliHelix mhelix(x2,p2,sign); | |
354 | ||
355 | // | |
356 | // | |
357 | // | |
358 | //find intersection linear | |
359 | // | |
360 | Double_t distance1, distance2; | |
361 | Double_t phase[2][2],radius[2]; | |
362 | Int_t points = dhelix1.GetRPHIintersections(mhelix, phase, radius); | |
363 | Double_t delta1=10000,delta2=10000; | |
364 | if (points>0){ | |
365 | dhelix1.LinearDCA(mhelix,phase[0][0],phase[0][1],radius[0],delta1); | |
366 | dhelix1.LinearDCA(mhelix,phase[0][0],phase[0][1],radius[0],delta1); | |
367 | dhelix1.LinearDCA(mhelix,phase[0][0],phase[0][1],radius[0],delta1); | |
368 | } | |
369 | else{ | |
370 | fInvMass=-1; | |
371 | return; | |
372 | } | |
373 | if (points==2){ | |
374 | dhelix1.LinearDCA(mhelix,phase[1][0],phase[1][1],radius[1],delta2); | |
375 | dhelix1.LinearDCA(mhelix,phase[1][0],phase[1][1],radius[1],delta2); | |
376 | dhelix1.LinearDCA(mhelix,phase[1][0],phase[1][1],radius[1],delta2); | |
377 | } | |
378 | distance1 = TMath::Min(delta1,delta2); | |
379 | // | |
380 | //find intersection parabolic | |
381 | // | |
382 | points = dhelix1.GetRPHIintersections(mhelix, phase, radius); | |
383 | delta1=10000,delta2=10000; | |
384 | ||
385 | if (points>0){ | |
386 | dhelix1.ParabolicDCA(mhelix,phase[0][0],phase[0][1],radius[0],delta1); | |
387 | } | |
388 | if (points==2){ | |
389 | dhelix1.ParabolicDCA(mhelix,phase[1][0],phase[1][1],radius[1],delta2); | |
390 | } | |
391 | ||
392 | distance2 = TMath::Min(delta1,delta2); | |
393 | // | |
394 | if (delta1<delta2){ | |
395 | //get V0 info | |
396 | dhelix1.Evaluate(phase[0][0],fMCXr); | |
397 | dhelix1.GetMomentum(phase[0][0],fMCPdr); | |
398 | mhelix.GetMomentum(phase[0][1],fMCPm); | |
399 | dhelix1.GetAngle(phase[0][0],mhelix,phase[0][1],fMCAngle); | |
400 | fMCRr = TMath::Sqrt(radius[0]); | |
401 | } | |
402 | else{ | |
403 | dhelix1.Evaluate(phase[1][0],fMCXr); | |
404 | dhelix1.GetMomentum(phase[1][0],fMCPdr); | |
405 | mhelix.GetMomentum(phase[1][1],fMCPm); | |
406 | dhelix1.GetAngle(phase[1][0],mhelix,phase[1][1],fMCAngle); | |
407 | fMCRr = TMath::Sqrt(radius[1]); | |
408 | } | |
409 | // | |
410 | // | |
411 | fMCDist1 = TMath::Sqrt(distance1); | |
412 | fMCDist2 = TMath::Sqrt(distance2); | |
413 | // | |
414 | // | |
415 | // | |
416 | Float_t v[3] = {fMCXr[0]-vertex[0],fMCXr[1]-vertex[1],fMCXr[2]-vertex[2]}; | |
417 | //Float_t v[3] = {fMCXr[0],fMCXr[1],fMCXr[2]}; | |
418 | Float_t p[3] = {fMCPdr[0]+fMCPm[0], fMCPdr[1]+fMCPm[1],fMCPdr[2]+fMCPm[2]}; | |
419 | Float_t vnorm2 = v[0]*v[0]+v[1]*v[1]; | |
420 | Float_t vnorm3 = TMath::Sqrt(v[2]*v[2]+vnorm2); | |
421 | vnorm2 = TMath::Sqrt(vnorm2); | |
422 | Float_t pnorm2 = p[0]*p[0]+p[1]*p[1]; | |
423 | Float_t pnorm3 = TMath::Sqrt(p[2]*p[2]+pnorm2); | |
424 | pnorm2 = TMath::Sqrt(pnorm2); | |
425 | // | |
426 | fPointAngleFi = (v[0]*p[0]+v[1]*p[1])/(vnorm2*pnorm2); | |
427 | fPointAngleTh = (v[2]*p[2]+vnorm2*pnorm2)/(vnorm3*pnorm3); | |
428 | fPointAngle = (v[0]*p[0]+v[1]*p[1]+v[2]*p[2])/(vnorm3*pnorm3); | |
429 | Double_t mass1 = fMCd.fMass; | |
430 | Double_t mass2 = fMCm.fMass; | |
431 | ||
432 | ||
433 | Double_t e1 = TMath::Sqrt(mass1*mass1+ | |
434 | fMCPd[0]*fMCPd[0]+ | |
435 | fMCPd[1]*fMCPd[1]+ | |
436 | fMCPd[2]*fMCPd[2]); | |
437 | Double_t e2 = TMath::Sqrt(mass2*mass2+ | |
438 | fMCPm[0]*fMCPm[0]+ | |
439 | fMCPm[1]*fMCPm[1]+ | |
440 | fMCPm[2]*fMCPm[2]); | |
441 | ||
442 | fInvMass = | |
443 | (fMCPm[0]+fMCPd[0])*(fMCPm[0]+fMCPd[0])+ | |
444 | (fMCPm[1]+fMCPd[1])*(fMCPm[1]+fMCPd[1])+ | |
445 | (fMCPm[2]+fMCPd[2])*(fMCPm[2]+fMCPd[2]); | |
446 | ||
447 | // fInvMass = TMath::Sqrt((e1+e2)*(e1+e2)-fInvMass); | |
448 | fInvMass = (e1+e2)*(e1+e2)-fInvMass; | |
022044bf | 449 | if (fInvMass>0) fInvMass = TMath::Sqrt(fInvMass); |
c92725b7 | 450 | } |
451 | ||
452 | ||
453 | ||
454 | ///////////////////////////////////////////////////////////////////////////////// | |
022044bf | 455 | |
456 | AliGenKinkInfo::AliGenKinkInfo(): | |
457 | fMCd(), //info about daughter particle - second particle for V0 | |
458 | fMCm(), //info about mother particle - first particle for V0 | |
459 | fMCDist1(0), //info about closest distance according closest MC - linear DCA | |
460 | fMCDist2(0), //info about closest distance parabolic DCA | |
461 | fMCRr(0), // rec position of the vertex | |
462 | fMCR(0) //exact r position of the vertex | |
463 | { | |
464 | // | |
465 | // default constructor | |
466 | // | |
467 | for (Int_t i=0;i<3;i++){ | |
468 | fMCPdr[i]=0; | |
469 | fMCPd[i]=0; | |
470 | fMCX[i]=0; | |
471 | fMCPm[i]=0; | |
472 | fMCAngle[i]=0; | |
473 | } | |
474 | for (Int_t i=0; i<2; i++) { | |
475 | fPdg[i]= 0; | |
476 | fLab[i]=0; | |
477 | } | |
478 | } | |
479 | ||
c92725b7 | 480 | void AliGenKinkInfo::Update() |
481 | { | |
022044bf | 482 | // |
483 | // Update information | |
484 | // some redundancy - faster acces to the values in analysis code | |
485 | // | |
c92725b7 | 486 | fMCPd[0] = fMCd.fParticle.Px(); |
487 | fMCPd[1] = fMCd.fParticle.Py(); | |
488 | fMCPd[2] = fMCd.fParticle.Pz(); | |
489 | fMCPd[3] = fMCd.fParticle.P(); | |
490 | // | |
491 | fMCX[0] = fMCd.fParticle.Vx(); | |
492 | fMCX[1] = fMCd.fParticle.Vy(); | |
493 | fMCX[2] = fMCd.fParticle.Vz(); | |
494 | fMCR = TMath::Sqrt( fMCX[0]*fMCX[0]+fMCX[1]*fMCX[1]); | |
495 | // | |
496 | fPdg[0] = fMCd.fParticle.GetPdgCode(); | |
497 | fPdg[1] = fMCm.fParticle.GetPdgCode(); | |
498 | // | |
499 | fLab[0] = fMCd.fParticle.GetUniqueID(); | |
500 | fLab[1] = fMCm.fParticle.GetUniqueID(); | |
501 | // | |
502 | // | |
503 | // | |
504 | Double_t x1[3],p1[3]; | |
505 | TParticle & pdaughter = fMCd.fParticle; | |
506 | x1[0] = pdaughter.Vx(); | |
507 | x1[1] = pdaughter.Vy(); | |
508 | x1[2] = pdaughter.Vz(); | |
509 | p1[0] = pdaughter.Px(); | |
510 | p1[1] = pdaughter.Py(); | |
511 | p1[2] = pdaughter.Pz(); | |
512 | Double_t sign = (pdaughter.GetPDG()->Charge()>0)? -1:1; | |
513 | AliHelix dhelix1(x1,p1,sign); | |
514 | // | |
515 | // | |
516 | Double_t x2[3],p2[3]; | |
517 | // | |
518 | TParticle & pmother = fMCm.fParticle; | |
519 | x2[0] = pmother.Vx(); | |
520 | x2[1] = pmother.Vy(); | |
521 | x2[2] = pmother.Vz(); | |
522 | p2[0] = pmother.Px(); | |
523 | p2[1] = pmother.Py(); | |
524 | p2[2] = pmother.Pz(); | |
525 | // | |
526 | AliTrackReference & pdecay = fMCm.fTRdecay; | |
527 | x2[0] = pdecay.X(); | |
528 | x2[1] = pdecay.Y(); | |
529 | x2[2] = pdecay.Z(); | |
530 | p2[0] = pdecay.Px(); | |
531 | p2[1] = pdecay.Py(); | |
532 | p2[2] = pdecay.Pz(); | |
533 | // | |
534 | sign = (pmother.GetPDG()->Charge()>0) ? -1:1; | |
535 | AliHelix mhelix(x2,p2,sign); | |
536 | ||
537 | // | |
538 | // | |
539 | // | |
540 | //find intersection linear | |
541 | // | |
542 | Double_t distance1, distance2; | |
543 | Double_t phase[2][2],radius[2]; | |
544 | Int_t points = dhelix1.GetRPHIintersections(mhelix, phase, radius); | |
545 | Double_t delta1=10000,delta2=10000; | |
546 | if (points>0){ | |
547 | dhelix1.LinearDCA(mhelix,phase[0][0],phase[0][1],radius[0],delta1); | |
548 | dhelix1.LinearDCA(mhelix,phase[0][0],phase[0][1],radius[0],delta1); | |
549 | dhelix1.LinearDCA(mhelix,phase[0][0],phase[0][1],radius[0],delta1); | |
550 | } | |
551 | if (points==2){ | |
552 | dhelix1.LinearDCA(mhelix,phase[1][0],phase[1][1],radius[1],delta2); | |
553 | dhelix1.LinearDCA(mhelix,phase[1][0],phase[1][1],radius[1],delta2); | |
554 | dhelix1.LinearDCA(mhelix,phase[1][0],phase[1][1],radius[1],delta2); | |
555 | } | |
556 | distance1 = TMath::Min(delta1,delta2); | |
557 | // | |
558 | //find intersection parabolic | |
559 | // | |
560 | points = dhelix1.GetRPHIintersections(mhelix, phase, radius); | |
561 | delta1=10000,delta2=10000; | |
562 | ||
563 | if (points>0){ | |
564 | dhelix1.ParabolicDCA(mhelix,phase[0][0],phase[0][1],radius[0],delta1); | |
565 | } | |
566 | if (points==2){ | |
567 | dhelix1.ParabolicDCA(mhelix,phase[1][0],phase[1][1],radius[1],delta2); | |
568 | } | |
569 | ||
570 | distance2 = TMath::Min(delta1,delta2); | |
571 | // | |
572 | if (delta1<delta2){ | |
573 | //get V0 info | |
574 | dhelix1.Evaluate(phase[0][0],fMCXr); | |
575 | dhelix1.GetMomentum(phase[0][0],fMCPdr); | |
576 | mhelix.GetMomentum(phase[0][1],fMCPm); | |
577 | dhelix1.GetAngle(phase[0][0],mhelix,phase[0][1],fMCAngle); | |
578 | fMCRr = TMath::Sqrt(radius[0]); | |
579 | } | |
580 | else{ | |
581 | dhelix1.Evaluate(phase[1][0],fMCXr); | |
582 | dhelix1.GetMomentum(phase[1][0],fMCPdr); | |
583 | mhelix.GetMomentum(phase[1][1],fMCPm); | |
584 | dhelix1.GetAngle(phase[1][0],mhelix,phase[1][1],fMCAngle); | |
585 | fMCRr = TMath::Sqrt(radius[1]); | |
586 | } | |
587 | // | |
588 | // | |
589 | fMCDist1 = TMath::Sqrt(distance1); | |
590 | fMCDist2 = TMath::Sqrt(distance2); | |
591 | ||
592 | } | |
593 | ||
594 | ||
595 | Float_t AliGenKinkInfo::GetQt(){ | |
596 | // | |
597 | // | |
598 | Float_t momentumd = TMath::Sqrt(fMCPd[0]*fMCPd[0]+fMCPd[1]*fMCPd[1]+fMCPd[2]*fMCPd[2]); | |
599 | return TMath::Sin(fMCAngle[2])*momentumd; | |
600 | } | |
601 | ||
602 | ||
603 | ||
c92725b7 | 604 | |
605 | //////////////////////////////////////////////////////////////////////// | |
606 | AliTPCdigitRow::AliTPCdigitRow() | |
607 | { | |
608 | Reset(); | |
609 | } | |
610 | //////////////////////////////////////////////////////////////////////// | |
611 | AliTPCdigitRow & AliTPCdigitRow::operator=(const AliTPCdigitRow &digOld) | |
612 | { | |
613 | for (Int_t i = 0; i<kgRowBytes; i++) fDig[i] = digOld.fDig[i]; | |
614 | return (*this); | |
615 | } | |
616 | //////////////////////////////////////////////////////////////////////// | |
617 | void AliTPCdigitRow::SetRow(Int_t row) | |
618 | { | |
619 | if (row >= 8*kgRowBytes) { | |
620 | cerr<<"AliTPCdigitRow::SetRow: index "<<row<<" out of bounds."<<endl; | |
621 | return; | |
622 | } | |
623 | Int_t iC = row/8; | |
624 | Int_t iB = row%8; | |
625 | SETBIT(fDig[iC],iB); | |
626 | } | |
627 | ||
628 | //////////////////////////////////////////////////////////////////////// | |
022044bf | 629 | Bool_t AliTPCdigitRow::TestRow(Int_t row) const |
c92725b7 | 630 | { |
631 | // | |
632 | // return kTRUE if row is on | |
633 | // | |
634 | Int_t iC = row/8; | |
635 | Int_t iB = row%8; | |
636 | return TESTBIT(fDig[iC],iB); | |
637 | } | |
638 | //////////////////////////////////////////////////////////////////////// | |
022044bf | 639 | Int_t AliTPCdigitRow::RowsOn(Int_t upto) const |
c92725b7 | 640 | { |
641 | // | |
642 | // returns number of rows with a digit | |
643 | // count only rows less equal row number upto | |
644 | // | |
645 | Int_t total = 0; | |
646 | for (Int_t i = 0; i<kgRowBytes; i++) { | |
647 | for (Int_t j = 0; j < 8; j++) { | |
648 | if (i*8+j > upto) return total; | |
649 | if (TESTBIT(fDig[i],j)) total++; | |
650 | } | |
651 | } | |
652 | return total; | |
653 | } | |
654 | //////////////////////////////////////////////////////////////////////// | |
655 | void AliTPCdigitRow::Reset() | |
656 | { | |
657 | // | |
658 | // resets all rows to zero | |
659 | // | |
660 | for (Int_t i = 0; i<kgRowBytes; i++) { | |
661 | fDig[i] <<= 8; | |
662 | } | |
663 | } | |
664 | //////////////////////////////////////////////////////////////////////// | |
022044bf | 665 | Int_t AliTPCdigitRow::Last() const |
c92725b7 | 666 | { |
667 | // | |
668 | // returns the last row number with a digit | |
669 | // returns -1 if now digits | |
670 | // | |
671 | for (Int_t i = kgRowBytes-1; i>=0; i--) { | |
672 | for (Int_t j = 7; j >= 0; j--) { | |
673 | if TESTBIT(fDig[i],j) return i*8+j; | |
674 | } | |
675 | } | |
676 | return -1; | |
677 | } | |
678 | //////////////////////////////////////////////////////////////////////// | |
022044bf | 679 | Int_t AliTPCdigitRow::First() const |
c92725b7 | 680 | { |
681 | // | |
682 | // returns the first row number with a digit | |
683 | // returns -1 if now digits | |
684 | // | |
685 | for (Int_t i = 0; i<kgRowBytes; i++) { | |
686 | for (Int_t j = 0; j < 8; j++) { | |
687 | if (TESTBIT(fDig[i],j)) return i*8+j; | |
688 | } | |
689 | } | |
690 | return -1; | |
691 | } | |
692 | ||
022044bf | 693 | |
c92725b7 | 694 | |
695 | //////////////////////////////////////////////////////////////////////// | |
022044bf | 696 | AliGenInfoMaker::AliGenInfoMaker(): |
697 | fDebug(0), //! debug flag | |
698 | fEventNr(0), //! current event number | |
699 | fLabel(0), //! track label | |
700 | fNEvents(0), //! number of events to process | |
701 | fFirstEventNr(0), //! first event to process | |
702 | fNParticles(0), //! number of particles in TreeK | |
703 | fTreeGenTracks(0), //! output tree with generated tracks | |
704 | fTreeKinks(0), //! output tree with Kinks | |
705 | fTreeV0(0), //! output tree with V0 | |
706 | fTreeHitLines(0), //! tree with hit lines | |
707 | fFileGenTracks(0), //! output file with stored fTreeGenTracks | |
708 | fLoader(0), //! pointer to the run loader | |
709 | fTreeD(0), //! current tree with digits | |
710 | fTreeTR(0), //! current tree with TR | |
711 | fStack(0), //! current stack | |
712 | fGenInfo(0), //! array with pointers to gen info | |
713 | fNInfos(0), //! number of tracks with infos | |
714 | fParamTPC(0), //! AliTPCParam | |
715 | fTPCPtCut(0.03), | |
716 | fITSPtCut(0.1), | |
717 | fTRDPtCut(0.1), | |
718 | fTOFPtCut(0.1) | |
719 | { | |
c92725b7 | 720 | } |
721 | ||
722 | //////////////////////////////////////////////////////////////////////// | |
723 | AliGenInfoMaker::AliGenInfoMaker(const char * fnGalice, const char* fnRes, | |
022044bf | 724 | Int_t nEvents, Int_t firstEvent): |
725 | fDebug(0), //! debug flag | |
726 | fEventNr(0), //! current event number | |
727 | fLabel(0), //! track label | |
728 | fNEvents(0), //! number of events to process | |
729 | fFirstEventNr(0), //! first event to process | |
730 | fNParticles(0), //! number of particles in TreeK | |
731 | fTreeGenTracks(0), //! output tree with generated tracks | |
732 | fTreeKinks(0), //! output tree with Kinks | |
733 | fTreeV0(0), //! output tree with V0 | |
734 | fTreeHitLines(0), //! tree with hit lines | |
735 | fFileGenTracks(0), //! output file with stored fTreeGenTracks | |
736 | fLoader(0), //! pointer to the run loader | |
737 | fTreeD(0), //! current tree with digits | |
738 | fTreeTR(0), //! current tree with TR | |
739 | fStack(0), //! current stack | |
740 | fGenInfo(0), //! array with pointers to gen info | |
741 | fNInfos(0), //! number of tracks with infos | |
742 | fParamTPC(0), //! AliTPCParam | |
743 | fTPCPtCut(0.03), | |
744 | fITSPtCut(0.1), | |
745 | fTRDPtCut(0.1), | |
746 | fTOFPtCut(0.1) | |
747 | ||
c92725b7 | 748 | { |
022044bf | 749 | // |
750 | // | |
751 | // | |
c92725b7 | 752 | fFirstEventNr = firstEvent; |
753 | fEventNr = firstEvent; | |
754 | fNEvents = nEvents; | |
c92725b7 | 755 | sprintf(fFnRes,"%s",fnRes); |
756 | // | |
757 | fLoader = AliRunLoader::Open(fnGalice); | |
758 | if (gAlice){ | |
759 | delete gAlice->GetRunLoader(); | |
760 | delete gAlice; | |
761 | gAlice = 0x0; | |
762 | } | |
763 | if (fLoader->LoadgAlice()){ | |
764 | cerr<<"Error occured while l"<<endl; | |
765 | } | |
766 | Int_t nall = fLoader->GetNumberOfEvents(); | |
767 | if (nEvents==0) { | |
768 | nEvents =nall; | |
769 | fNEvents=nall; | |
770 | fFirstEventNr=0; | |
771 | } | |
772 | ||
773 | if (nall<=0){ | |
774 | cerr<<"no events available"<<endl; | |
775 | fEventNr = 0; | |
776 | return; | |
777 | } | |
778 | if (firstEvent+nEvents>nall) { | |
779 | fEventNr = nall-firstEvent; | |
780 | cerr<<"restricted number of events availaible"<<endl; | |
781 | } | |
782 | AliMagF * magf = gAlice->Field(); | |
783 | AliTracker::SetFieldMap(magf,0); | |
784 | } | |
785 | ||
786 | ||
787 | AliMCInfo * AliGenInfoMaker::MakeInfo(UInt_t i) | |
788 | { | |
789 | // | |
790 | if (i<fNParticles) { | |
791 | if (fGenInfo[i]) return fGenInfo[i]; | |
792 | fGenInfo[i] = new AliMCInfo; | |
793 | fNInfos++; | |
794 | return fGenInfo[i]; | |
795 | } | |
796 | else | |
797 | return 0; | |
798 | } | |
799 | ||
c92725b7 | 800 | //////////////////////////////////////////////////////////////////////// |
801 | AliGenInfoMaker::~AliGenInfoMaker() | |
802 | { | |
803 | ||
804 | if (fLoader){ | |
805 | fLoader->UnloadgAlice(); | |
806 | gAlice = 0; | |
807 | delete fLoader; | |
808 | } | |
809 | } | |
810 | ||
811 | Int_t AliGenInfoMaker::SetIO() | |
812 | { | |
813 | // | |
814 | // | |
815 | CreateTreeGenTracks(); | |
816 | if (!fTreeGenTracks) return 1; | |
817 | // AliTracker::SetFieldFactor(); | |
818 | ||
819 | fParamTPC = GetTPCParam(); | |
820 | // | |
821 | return 0; | |
822 | } | |
823 | ||
824 | //////////////////////////////////////////////////////////////////////// | |
825 | Int_t AliGenInfoMaker::SetIO(Int_t eventNr) | |
826 | { | |
827 | // | |
828 | // | |
829 | // SET INPUT | |
830 | fLoader->SetEventNumber(eventNr); | |
831 | // | |
832 | fLoader->LoadHeader(); | |
833 | fLoader->LoadKinematics(); | |
834 | fStack = fLoader->Stack(); | |
835 | // | |
836 | fLoader->LoadTrackRefs(); | |
837 | fLoader->LoadHits(); | |
838 | fTreeTR = fLoader->TreeTR(); | |
839 | // | |
840 | AliTPCLoader * tpcl = (AliTPCLoader*)fLoader->GetLoader("TPCLoader"); | |
841 | tpcl->LoadDigits(); | |
842 | fTreeD = tpcl->TreeD(); | |
843 | return 0; | |
844 | } | |
845 | ||
846 | Int_t AliGenInfoMaker::CloseIOEvent() | |
847 | { | |
848 | fLoader->UnloadHeader(); | |
849 | fLoader->UnloadKinematics(); | |
850 | fLoader->UnloadTrackRefs(); | |
851 | AliTPCLoader * tpcl = (AliTPCLoader*)fLoader->GetLoader("TPCLoader"); | |
852 | tpcl->UnloadDigits(); | |
853 | return 0; | |
854 | } | |
855 | ||
856 | Int_t AliGenInfoMaker::CloseIO() | |
857 | { | |
858 | fLoader->UnloadgAlice(); | |
859 | return 0; | |
860 | } | |
861 | ||
862 | ||
863 | ||
864 | //////////////////////////////////////////////////////////////////////// | |
865 | Int_t AliGenInfoMaker::Exec(Int_t nEvents, Int_t firstEventNr) | |
866 | { | |
867 | fNEvents = nEvents; | |
868 | fFirstEventNr = firstEventNr; | |
869 | return Exec(); | |
870 | } | |
871 | ||
872 | //////////////////////////////////////////////////////////////////////// | |
873 | Int_t AliGenInfoMaker::Exec() | |
874 | { | |
875 | TStopwatch timer; | |
876 | timer.Start(); | |
877 | Int_t status =SetIO(); | |
878 | if (status>0) return status; | |
879 | // | |
880 | ||
881 | for (fEventNr = fFirstEventNr; fEventNr < fFirstEventNr+fNEvents; | |
882 | fEventNr++) { | |
883 | SetIO(fEventNr); | |
884 | fNParticles = fStack->GetNtrack(); | |
885 | // | |
886 | fGenInfo = new AliMCInfo*[fNParticles]; | |
887 | for (UInt_t i = 0; i<fNParticles; i++) { | |
888 | fGenInfo[i]=0; | |
889 | } | |
890 | // | |
891 | cout<<"Start to process event "<<fEventNr<<endl; | |
892 | cout<<"\tfNParticles = "<<fNParticles<<endl; | |
893 | if (fDebug>2) cout<<"\n\n\n\tStart loop over TreeTR"<<endl; | |
894 | if (TreeTRLoop()>0) return 1; | |
895 | // | |
896 | if (fDebug>2) cout<<"\n\n\n\tStart loop over TreeD"<<endl; | |
897 | if (TreeDLoop()>0) return 1; | |
898 | // | |
899 | if (fDebug>2) cout<<"\n\n\n\tStart loop over TreeK"<<endl; | |
900 | if (TreeKLoop()>0) return 1; | |
901 | if (fDebug>2) cout<<"\tEnd loop over TreeK"<<endl; | |
902 | // | |
903 | if (BuildKinkInfo()>0) return 1; | |
904 | if (BuildV0Info()>0) return 1; | |
905 | //if (BuildHitLines()>0) return 1; | |
906 | if (fDebug>2) cout<<"\tEnd loop over TreeK"<<endl; | |
907 | // | |
908 | for (UInt_t i = 0; i<fNParticles; i++) { | |
909 | if (fGenInfo[i]) delete fGenInfo[i]; | |
910 | } | |
911 | delete []fGenInfo; | |
912 | CloseIOEvent(); | |
913 | } | |
914 | // | |
915 | CloseIO(); | |
916 | CloseOutputFile(); | |
917 | ||
918 | cerr<<"Exec finished"<<endl; | |
919 | ||
920 | timer.Stop(); | |
921 | timer.Print(); | |
922 | return 0; | |
923 | } | |
924 | ||
925 | //////////////////////////////////////////////////////////////////////// | |
926 | void AliGenInfoMaker::CreateTreeGenTracks() | |
927 | { | |
928 | fFileGenTracks = TFile::Open(fFnRes,"RECREATE"); | |
929 | if (!fFileGenTracks) { | |
930 | cerr<<"Error in CreateTreeGenTracks: cannot open file "<<fFnRes<<endl; | |
931 | return; | |
932 | } | |
933 | fTreeGenTracks = new TTree("genTracksTree","genTracksTree"); | |
934 | AliMCInfo * info = new AliMCInfo; | |
935 | fTreeGenTracks->Branch("MC","AliMCInfo",&info); | |
936 | delete info; | |
937 | // | |
938 | AliGenKinkInfo *kinkinfo = new AliGenKinkInfo; | |
939 | fTreeKinks = new TTree("genKinksTree","genKinksTree"); | |
940 | fTreeKinks->Branch("MC","AliGenKinkInfo",&kinkinfo); | |
941 | delete kinkinfo; | |
942 | // | |
943 | AliGenV0Info *v0info = new AliGenV0Info; | |
944 | fTreeV0 = new TTree("genV0Tree","genV0Tree"); | |
945 | fTreeV0->Branch("MC","AliGenV0Info",&v0info); | |
946 | delete v0info; | |
947 | // | |
948 | // | |
949 | AliTrackPointArray * points0 = new AliTrackPointArray; | |
950 | AliTrackPointArray * points1 = new AliTrackPointArray; | |
951 | AliTrackPointArray * points2 = new AliTrackPointArray; | |
952 | fTreeHitLines = new TTree("HitLines","HitLines"); | |
953 | fTreeHitLines->Branch("TPC.","AliTrackPointArray",&points0,32000,10); | |
954 | fTreeHitLines->Branch("TRD.","AliTrackPointArray",&points1,32000,10); | |
955 | fTreeHitLines->Branch("ITS.","AliTrackPointArray",&points2,32000,10); | |
956 | Int_t label=0; | |
957 | fTreeHitLines->Branch("Label",&label,"label/I"); | |
958 | // | |
959 | fTreeGenTracks->AutoSave(); | |
960 | fTreeKinks->AutoSave(); | |
961 | fTreeV0->AutoSave(); | |
962 | fTreeHitLines->AutoSave(); | |
963 | } | |
964 | //////////////////////////////////////////////////////////////////////// | |
965 | void AliGenInfoMaker::CloseOutputFile() | |
966 | { | |
967 | if (!fFileGenTracks) { | |
968 | cerr<<"File "<<fFnRes<<" not found as an open file."<<endl; | |
969 | return; | |
970 | } | |
971 | fFileGenTracks->cd(); | |
972 | fTreeGenTracks->Write(); | |
973 | delete fTreeGenTracks; | |
974 | fTreeKinks->Write(); | |
975 | delete fTreeKinks; | |
976 | fTreeV0->Write(); | |
977 | delete fTreeV0; | |
978 | ||
979 | fFileGenTracks->Close(); | |
980 | delete fFileGenTracks; | |
981 | return; | |
982 | } | |
983 | ||
984 | //////////////////////////////////////////////////////////////////////// | |
985 | Int_t AliGenInfoMaker::TreeKLoop() | |
986 | { | |
987 | // | |
988 | // open the file with treeK | |
989 | // loop over all entries there and save information about some tracks | |
990 | // | |
991 | ||
992 | AliStack * stack = fStack; | |
993 | if (!stack) {cerr<<"Stack was not found!\n"; return 1;} | |
994 | ||
995 | if (fDebug > 0) { | |
996 | cout<<"There are "<<fNParticles<<" primary and secondary particles in event " | |
997 | <<fEventNr<<endl; | |
998 | } | |
999 | Int_t ipdg = 0; | |
1000 | TParticlePDG *ppdg = 0; | |
1001 | // not all generators give primary vertex position. Take the vertex | |
1002 | // of the particle 0 as primary vertex. | |
1003 | TDatabasePDG pdg; //get pdg table | |
1004 | //thank you very much root for this | |
1005 | TBranch * br = fTreeGenTracks->GetBranch("MC"); | |
1006 | TParticle *particle = stack->ParticleFromTreeK(0); | |
1007 | fVPrim[0] = particle->Vx(); | |
1008 | fVPrim[1] = particle->Vy(); | |
1009 | fVPrim[2] = particle->Vz(); | |
1010 | for (UInt_t iParticle = 0; iParticle < fNParticles; iParticle++) { | |
1011 | // load only particles with TR | |
1012 | AliMCInfo * info = GetInfo(iParticle); | |
1013 | if (!info) continue; | |
1014 | ////////////////////////////////////////////////////////////////////// | |
1015 | info->fLabel = iParticle; | |
1016 | // | |
1017 | info->fParticle = *(stack->Particle(iParticle)); | |
1018 | info->fVDist[0] = info->fParticle.Vx()-fVPrim[0]; | |
1019 | info->fVDist[1] = info->fParticle.Vy()-fVPrim[1]; | |
1020 | info->fVDist[2] = info->fParticle.Vz()-fVPrim[2]; | |
1021 | info->fVDist[3] = TMath::Sqrt(info->fVDist[0]*info->fVDist[0]+ | |
1022 | info->fVDist[1]*info->fVDist[1]+info->fVDist[2]*info->fVDist[2]); | |
1023 | // | |
1024 | // | |
1025 | ipdg = info->fParticle.GetPdgCode(); | |
1026 | info->fPdg = ipdg; | |
1027 | ppdg = pdg.GetParticle(ipdg); | |
1028 | info->fEventNr = fEventNr; | |
1029 | info->Update(); | |
1030 | ////////////////////////////////////////////////////////////////////// | |
1031 | br->SetAddress(&info); | |
1032 | fTreeGenTracks->Fill(); | |
1033 | } | |
1034 | fTreeGenTracks->AutoSave(); | |
1035 | if (fDebug > 2) cerr<<"end of TreeKLoop"<<endl; | |
1036 | return 0; | |
1037 | } | |
1038 | ||
1039 | ||
1040 | //////////////////////////////////////////////////////////////////////////////////// | |
1041 | Int_t AliGenInfoMaker::BuildKinkInfo() | |
1042 | { | |
1043 | // | |
1044 | // Build tree with Kink Information | |
1045 | // | |
1046 | AliStack * stack = fStack; | |
1047 | if (!stack) {cerr<<"Stack was not found!\n"; return 1;} | |
1048 | ||
1049 | if (fDebug > 0) { | |
1050 | cout<<"There are "<<fNParticles<<" primary and secondary particles in event " | |
1051 | <<fEventNr<<endl; | |
1052 | } | |
1053 | // Int_t ipdg = 0; | |
1054 | //TParticlePDG *ppdg = 0; | |
1055 | // not all generators give primary vertex position. Take the vertex | |
1056 | // of the particle 0 as primary vertex. | |
1057 | TDatabasePDG pdg; //get pdg table | |
1058 | //thank you very much root for this | |
1059 | TBranch * br = fTreeKinks->GetBranch("MC"); | |
1060 | // | |
1061 | AliGenKinkInfo * kinkinfo = new AliGenKinkInfo; | |
1062 | // | |
1063 | for (UInt_t iParticle = 0; iParticle < fNParticles; iParticle++) { | |
1064 | // load only particles with TR | |
1065 | AliMCInfo * info = GetInfo(iParticle); | |
1066 | if (!info) continue; | |
1067 | if (info->fCharge==0) continue; | |
1068 | if (info->fTRdecay.P()<0.13) continue; //momenta cut | |
1069 | if (info->fTRdecay.R()>500) continue; //R cut - decay outside barrel | |
1070 | TParticle & particle = info->fParticle; | |
1071 | Int_t first = particle.GetDaughter(0); | |
1072 | if (first ==0) continue; | |
1073 | ||
1074 | Int_t last = particle.GetDaughter(1); | |
1075 | if (last ==0) last=first; | |
1076 | AliMCInfo * info2 = 0; | |
1077 | AliMCInfo * dinfo = 0; | |
1078 | ||
1079 | for (Int_t id2=first;id2<=last;id2++){ | |
1080 | info2 = GetInfo(id2); | |
1081 | if (!info2) continue; | |
1082 | TParticle &p2 = info2->fParticle; | |
1083 | Double_t r = TMath::Sqrt(p2.Vx()*p2.Vx()+p2.Vy()*p2.Vy()); | |
1084 | if ( TMath::Abs(info->fTRdecay.R()-r)>0.01) continue; | |
1085 | if (!(p2.GetPDG())) continue; | |
1086 | dinfo =info2; | |
1087 | ||
1088 | kinkinfo->fMCm = (*info); | |
1089 | kinkinfo->fMCd = (*dinfo); | |
1090 | if (kinkinfo->fMCm.fParticle.GetPDG()==0 || kinkinfo->fMCd.fParticle.GetPDG()==0) continue; | |
1091 | kinkinfo->Update(); | |
1092 | br->SetAddress(&kinkinfo); | |
1093 | fTreeKinks->Fill(); | |
1094 | } | |
1095 | /* | |
1096 | if (dinfo){ | |
1097 | kinkinfo->fMCm = (*info); | |
1098 | kinkinfo->fMCd = (*dinfo); | |
1099 | kinkinfo->Update(); | |
1100 | br->SetAddress(&kinkinfo); | |
1101 | fTreeKinks->Fill(); | |
1102 | } | |
1103 | */ | |
1104 | } | |
1105 | fTreeGenTracks->AutoSave(); | |
1106 | if (fDebug > 2) cerr<<"end of Kink Loop"<<endl; | |
1107 | return 0; | |
1108 | } | |
1109 | ||
1110 | ||
1111 | //////////////////////////////////////////////////////////////////////////////////// | |
1112 | Int_t AliGenInfoMaker::BuildV0Info() | |
1113 | { | |
1114 | // | |
1115 | // Build tree with V0 Information | |
1116 | // | |
1117 | AliStack * stack = fStack; | |
1118 | if (!stack) {cerr<<"Stack was not found!\n"; return 1;} | |
1119 | ||
1120 | if (fDebug > 0) { | |
1121 | cout<<"There are "<<fNParticles<<" primary and secondary particles in event " | |
1122 | <<fEventNr<<endl; | |
1123 | } | |
1124 | // Int_t ipdg = 0; | |
1125 | //TParticlePDG *ppdg = 0; | |
1126 | // not all generators give primary vertex position. Take the vertex | |
1127 | // of the particle 0 as primary vertex. | |
1128 | TDatabasePDG pdg; //get pdg table | |
1129 | //thank you very much root for this | |
1130 | TBranch * br = fTreeV0->GetBranch("MC"); | |
1131 | // | |
1132 | AliGenV0Info * v0info = new AliGenV0Info; | |
1133 | // | |
1134 | // | |
1135 | for (UInt_t iParticle = 0; iParticle < fNParticles; iParticle++) { | |
1136 | // load only particles with TR | |
1137 | AliMCInfo * info = GetInfo(iParticle); | |
1138 | if (!info) continue; | |
1139 | if (info->fCharge==0) continue; | |
1140 | // | |
1141 | // | |
1142 | TParticle & particle = info->fParticle; | |
1143 | Int_t mother = particle.GetMother(0); | |
1144 | if (mother <=0) continue; | |
1145 | // | |
1146 | TParticle * motherparticle = stack->Particle(mother); | |
1147 | if (!motherparticle) continue; | |
1148 | // | |
1149 | Int_t last = motherparticle->GetDaughter(1); | |
1150 | if (last==(int)iParticle) continue; | |
1151 | AliMCInfo * info2 = info; | |
1152 | AliMCInfo * dinfo = GetInfo(last); | |
1153 | if (!dinfo) continue; | |
1154 | if (!dinfo->fParticle.GetPDG()) continue; | |
1155 | if (!info2->fParticle.GetPDG()) continue; | |
1156 | if (dinfo){ | |
1157 | v0info->fMCm = (*info); | |
1158 | v0info->fMCd = (*dinfo); | |
1159 | v0info->fMotherP = (*motherparticle); | |
1160 | v0info->Update(fVPrim); | |
1161 | br->SetAddress(&v0info); | |
1162 | fTreeV0->Fill(); | |
1163 | } | |
1164 | } | |
1165 | fTreeV0->AutoSave(); | |
1166 | if (fDebug > 2) cerr<<"end of V0 Loop"<<endl; | |
1167 | return 0; | |
1168 | } | |
1169 | ||
1170 | ||
1171 | ||
1172 | ||
1173 | //////////////////////////////////////////////////////////////////////// | |
1174 | Int_t AliGenInfoMaker::BuildHitLines() | |
1175 | { | |
1176 | ||
1177 | // | |
1178 | // open the file with treeK | |
1179 | // loop over all entries there and save information about some tracks | |
1180 | // | |
1181 | ||
1182 | AliStack * stack = fStack; | |
1183 | if (!stack) {cerr<<"Stack was not found!\n"; return 1;} | |
1184 | ||
1185 | if (fDebug > 0) { | |
1186 | cout<<"There are "<<fNParticles<<" primary and secondary particles in event " | |
1187 | <<fEventNr<<endl; | |
1188 | } | |
1189 | // Int_t ipdg = 0; | |
1190 | // // TParticlePDG *ppdg = 0; | |
1191 | // // not all generators give primary vertex position. Take the vertex | |
1192 | // // of the particle 0 as primary vertex. | |
1193 | // TDatabasePDG pdg; //get pdg table | |
1194 | // //thank you very much root for this | |
1195 | // AliTrackPointArray *tpcp = new AliTrackPointArray; | |
1196 | // AliTrackPointArray *trdp = new AliTrackPointArray; | |
1197 | // AliTrackPointArray *itsp = new AliTrackPointArray; | |
1198 | // Int_t label =0; | |
1199 | // // | |
1200 | // TBranch * brtpc = fTreeHitLines->GetBranch("TPC."); | |
1201 | // TBranch * brtrd = fTreeHitLines->GetBranch("TRD."); | |
1202 | // TBranch * brits = fTreeHitLines->GetBranch("ITS."); | |
1203 | // TBranch * brlabel = fTreeHitLines->GetBranch("Label"); | |
1204 | // brlabel->SetAddress(&label); | |
1205 | // brtpc->SetAddress(&tpcp); | |
1206 | // brtrd->SetAddress(&trdp); | |
1207 | // brits->SetAddress(&itsp); | |
1208 | // // | |
1209 | // AliDetector *dtpc = gAlice->GetDetector("TPC"); | |
1210 | // AliDetector *dtrd = gAlice->GetDetector("TRD"); | |
1211 | // AliDetector *dits = gAlice->GetDetector("ITS"); | |
1212 | ||
1213 | // for (UInt_t iParticle = 0; iParticle < fNParticles; iParticle++) { | |
1214 | // // load only particles with TR | |
1215 | // AliMCInfo * info = GetInfo(iParticle); | |
1216 | // if (!info) continue; | |
1217 | // Int_t primpart = info->fPrimPart; | |
1218 | // ipdg = info->fParticle.GetPdgCode(); | |
1219 | // label = iParticle; | |
1220 | // // | |
1221 | // gAlice->ResetHits(); | |
1222 | // tpcp->Reset(); | |
1223 | // itsp->Reset(); | |
1224 | // trdp->Reset(); | |
1225 | // tpcp->fLabel1 = ipdg; | |
1226 | // trdp->fLabel1 = ipdg; | |
1227 | // itsp->fLabel1 = ipdg; | |
1228 | // if (dtpc->TreeH()->GetEvent(primpart)){ | |
1229 | // dtpc->LoadPoints(primpart); | |
1230 | // tpcp->Reset(dtpc,iParticle); | |
1231 | // } | |
1232 | // if (dtrd->TreeH()->GetEvent(primpart)){ | |
1233 | // dtrd->LoadPoints(primpart); | |
1234 | // trdp->Reset(dtrd,iParticle); | |
1235 | // } | |
1236 | // if (dits->TreeH()->GetEvent(primpart)){ | |
1237 | // dits->LoadPoints(primpart); | |
1238 | // itsp->Reset(dits,iParticle); | |
1239 | // } | |
1240 | // // | |
1241 | // fTreeHitLines->Fill(); | |
1242 | // dtpc->ResetPoints(); | |
1243 | // dtrd->ResetPoints(); | |
1244 | // dits->ResetPoints(); | |
1245 | // } | |
1246 | // delete tpcp; | |
1247 | // delete trdp; | |
1248 | // delete itsp; | |
1249 | // fTreeHitLines->AutoSave(); | |
1250 | // if (fDebug > 2) cerr<<"end of TreeKLoop"<<endl; | |
1251 | return 0; | |
1252 | } | |
1253 | ||
1254 | ||
1255 | //////////////////////////////////////////////////////////////////////// | |
1256 | Int_t AliGenInfoMaker::TreeDLoop() | |
1257 | { | |
1258 | // | |
1259 | // open the file with treeD | |
1260 | // loop over all entries there and save information about some tracks | |
1261 | // | |
1262 | ||
1263 | Int_t nInnerSector = fParamTPC->GetNInnerSector(); | |
1264 | Int_t rowShift = 0; | |
1265 | Int_t zero=fParamTPC->GetZeroSup()+6; | |
1266 | // | |
1267 | // | |
1268 | AliSimDigits digitsAddress, *digits=&digitsAddress; | |
1269 | fTreeD->GetBranch("Segment")->SetAddress(&digits); | |
1270 | ||
1271 | Int_t sectorsByRows=(Int_t)fTreeD->GetEntries(); | |
1272 | if (fDebug > 1) cout<<"\tsectorsByRows = "<<sectorsByRows<<endl; | |
1273 | for (Int_t i=0; i<sectorsByRows; i++) { | |
1274 | if (!fTreeD->GetEvent(i)) continue; | |
1275 | Int_t sec,row; | |
1276 | fParamTPC->AdjustSectorRow(digits->GetID(),sec,row); | |
1277 | if (fDebug > 1) cout<<sec<<' '<<row<<" \r"; | |
1278 | // here I expect that upper sectors follow lower sectors | |
1279 | if (sec > nInnerSector) rowShift = fParamTPC->GetNRowLow(); | |
1280 | // | |
1281 | digits->ExpandTrackBuffer(); | |
1282 | digits->First(); | |
1283 | do { | |
1284 | Int_t iRow=digits->CurrentRow(); | |
1285 | Int_t iColumn=digits->CurrentColumn(); | |
1286 | Short_t digitValue = digits->CurrentDigit(); | |
1287 | if (digitValue >= zero) { | |
1288 | Int_t label; | |
1289 | for (Int_t j = 0; j<3; j++) { | |
1290 | // label = digits->GetTrackID(iRow,iColumn,j); | |
1291 | label = digits->GetTrackIDFast(iRow,iColumn,j)-2; | |
1292 | if (label >= (Int_t)fNParticles) { //don't label from bakground event | |
1293 | continue; | |
1294 | } | |
1295 | if (label >= 0 && label <= (Int_t)fNParticles) { | |
1296 | if (fDebug > 6 ) { | |
1297 | cout<<"Inner loop: sector, iRow, iColumn, label, value, row " | |
1298 | <<sec<<" " | |
1299 | <<iRow<<" "<<iColumn<<" "<<label<<" "<<digitValue | |
1300 | <<" "<<row<<endl; | |
1301 | } | |
1302 | AliMCInfo * info = GetInfo(label); | |
1303 | if (info){ | |
1304 | info->fTPCRow.SetRow(row+rowShift); | |
1305 | } | |
1306 | } | |
1307 | } | |
1308 | } | |
1309 | } while (digits->Next()); | |
1310 | } | |
1311 | ||
1312 | if (fDebug > 2) cerr<<"end of TreeDLoop"<<endl; | |
1313 | return 0; | |
1314 | } | |
1315 | ||
1316 | ||
1317 | //////////////////////////////////////////////////////////////////////// | |
1318 | Int_t AliGenInfoMaker::TreeTRLoop() | |
1319 | { | |
1320 | // | |
1321 | // loop over TrackReferences and store the first one for each track | |
1322 | // | |
1323 | TTree * treeTR = fTreeTR; | |
1324 | Int_t nPrimaries = (Int_t) treeTR->GetEntries(); | |
1325 | if (fDebug > 1) cout<<"There are "<<nPrimaries<<" entries in TreeTR"<<endl; | |
1326 | // | |
1327 | // | |
1328 | //track references for TPC | |
022044bf | 1329 | TClonesArray* tpcArrayTR = new TClonesArray("AliTrackReference"); |
1330 | TClonesArray* itsArrayTR = new TClonesArray("AliTrackReference"); | |
1331 | TClonesArray* trdArrayTR = new TClonesArray("AliTrackReference"); | |
1332 | TClonesArray* tofArrayTR = new TClonesArray("AliTrackReference"); | |
1333 | TClonesArray* runArrayTR = new TClonesArray("AliTrackReference"); | |
c92725b7 | 1334 | // |
022044bf | 1335 | if (treeTR->GetBranch("TPC")) treeTR->GetBranch("TPC")->SetAddress(&tpcArrayTR); |
1336 | if (treeTR->GetBranch("ITS")) treeTR->GetBranch("ITS")->SetAddress(&itsArrayTR); | |
1337 | if (treeTR->GetBranch("TRD")) treeTR->GetBranch("TRD")->SetAddress(&trdArrayTR); | |
1338 | if (treeTR->GetBranch("TOF")) treeTR->GetBranch("TOF")->SetAddress(&tofArrayTR); | |
1339 | if (treeTR->GetBranch("AliRun")) treeTR->GetBranch("AliRun")->SetAddress(&runArrayTR); | |
c92725b7 | 1340 | // |
1341 | // | |
1342 | // | |
1343 | for (Int_t iPrimPart = 0; iPrimPart<nPrimaries; iPrimPart++) { | |
1344 | treeTR->GetEntry(iPrimPart); | |
1345 | // | |
1346 | // Loop over TPC references | |
1347 | // | |
022044bf | 1348 | for (Int_t iTrackRef = 0; iTrackRef < tpcArrayTR->GetEntriesFast(); iTrackRef++) { |
1349 | AliTrackReference *trackRef = (AliTrackReference*)tpcArrayTR->At(iTrackRef); | |
c92725b7 | 1350 | // |
1351 | if (trackRef->TestBit(BIT(2))){ | |
1352 | //if decay | |
022044bf | 1353 | if (trackRef->P()<fTPCPtCut) continue; |
c92725b7 | 1354 | Int_t label = trackRef->GetTrack(); |
1355 | AliMCInfo * info = GetInfo(label); | |
1356 | if (!info) info = MakeInfo(label); | |
1357 | info->fTRdecay = *trackRef; | |
1358 | } | |
1359 | // | |
022044bf | 1360 | if (trackRef->P()<fTPCPtCut) continue; |
c92725b7 | 1361 | Int_t label = trackRef->GetTrack(); |
1362 | AliMCInfo * info = GetInfo(label); | |
1363 | if (!info) info = MakeInfo(label); | |
1364 | if (!info) continue; | |
1365 | info->fPrimPart = iPrimPart; | |
1366 | TClonesArray & arr = *(info->fTPCReferences); | |
1367 | new (arr[arr.GetEntriesFast()]) AliTrackReference(*trackRef); | |
1368 | } | |
1369 | // | |
1370 | // Loop over ITS references | |
1371 | // | |
022044bf | 1372 | for (Int_t iTrackRef = 0; iTrackRef < itsArrayTR->GetEntriesFast(); iTrackRef++) { |
1373 | AliTrackReference *trackRef = (AliTrackReference*)itsArrayTR->At(iTrackRef); | |
c92725b7 | 1374 | // |
1375 | // | |
022044bf | 1376 | if (trackRef->P()<fTPCPtCut) continue; |
c92725b7 | 1377 | Int_t label = trackRef->GetTrack(); |
1378 | AliMCInfo * info = GetInfo(label); | |
022044bf | 1379 | if ( (!info) && trackRef->Pt()<fITSPtCut) continue; |
c92725b7 | 1380 | if (!info) info = MakeInfo(label); |
1381 | if (!info) continue; | |
1382 | info->fPrimPart = iPrimPart; | |
1383 | TClonesArray & arr = *(info->fITSReferences); | |
1384 | new (arr[arr.GetEntriesFast()]) AliTrackReference(*trackRef); | |
1385 | } | |
1386 | // | |
1387 | // Loop over TRD references | |
1388 | // | |
022044bf | 1389 | for (Int_t iTrackRef = 0; iTrackRef < trdArrayTR->GetEntriesFast(); iTrackRef++) { |
1390 | AliTrackReference *trackRef = (AliTrackReference*)trdArrayTR->At(iTrackRef); | |
c92725b7 | 1391 | // |
022044bf | 1392 | if (trackRef->P()<fTPCPtCut) continue; |
c92725b7 | 1393 | Int_t label = trackRef->GetTrack(); |
1394 | AliMCInfo * info = GetInfo(label); | |
022044bf | 1395 | if ( (!info) && trackRef->Pt()<fTRDPtCut) continue; |
c92725b7 | 1396 | if (!info) info = MakeInfo(label); |
1397 | if (!info) continue; | |
1398 | info->fPrimPart = iPrimPart; | |
1399 | TClonesArray & arr = *(info->fTRDReferences); | |
1400 | new (arr[arr.GetEntriesFast()]) AliTrackReference(*trackRef); | |
1401 | } | |
1402 | // | |
1403 | // Loop over TOF references | |
1404 | // | |
022044bf | 1405 | for (Int_t iTrackRef = 0; iTrackRef < tofArrayTR->GetEntriesFast(); iTrackRef++) { |
1406 | AliTrackReference *trackRef = (AliTrackReference*)tofArrayTR->At(iTrackRef); | |
c92725b7 | 1407 | Int_t label = trackRef->GetTrack(); |
1408 | AliMCInfo * info = GetInfo(label); | |
1409 | if (!info){ | |
022044bf | 1410 | if (trackRef->Pt()<fTPCPtCut) continue; |
1411 | if ( (!info) && trackRef->Pt()<fTOFPtCut) continue; | |
c92725b7 | 1412 | } |
1413 | if (!info) info = MakeInfo(label); | |
1414 | if (!info) continue; | |
1415 | info->fPrimPart = iPrimPart; | |
1416 | TClonesArray & arr = *(info->fTOFReferences); | |
1417 | new (arr[arr.GetEntriesFast()]) AliTrackReference(*trackRef); | |
1418 | } | |
1419 | // | |
1420 | // get dacay position | |
022044bf | 1421 | for (Int_t iTrackRef = 0; iTrackRef < runArrayTR->GetEntriesFast(); iTrackRef++) { |
1422 | AliTrackReference *trackRef = (AliTrackReference*)runArrayTR->At(iTrackRef); | |
c92725b7 | 1423 | // |
1424 | Int_t label = trackRef->GetTrack(); | |
1425 | AliMCInfo * info = GetInfo(label); | |
1426 | if (!info) continue; | |
1427 | if (!trackRef->TestBit(BIT(2))) continue; //if not decay | |
1428 | // if (TMath::Abs(trackRef.X()); | |
1429 | info->fTRdecay = *trackRef; | |
1430 | } | |
1431 | } | |
1432 | // | |
022044bf | 1433 | tpcArrayTR->Delete(); |
1434 | delete tpcArrayTR; | |
1435 | trdArrayTR->Delete(); | |
1436 | delete trdArrayTR; | |
1437 | tofArrayTR->Delete(); | |
1438 | delete tofArrayTR; | |
1439 | itsArrayTR->Delete(); | |
1440 | delete itsArrayTR; | |
1441 | runArrayTR->Delete(); | |
1442 | delete runArrayTR; | |
c92725b7 | 1443 | // |
1444 | return 0; | |
1445 | } | |
1446 | ||
1447 | //////////////////////////////////////////////////////////////////////// | |
1448 | Float_t AliGenInfoMaker::TR2LocalX(AliTrackReference *trackRef, | |
022044bf | 1449 | AliTPCParam *paramTPC) const { |
c92725b7 | 1450 | |
1451 | Float_t x[3] = { trackRef->X(),trackRef->Y(),trackRef->Z()}; | |
1452 | Int_t index[4]; | |
1453 | paramTPC->Transform0to1(x,index); | |
1454 | paramTPC->Transform1to2(x,index); | |
1455 | return x[0]; | |
1456 | } | |
1457 | //////////////////////////////////////////////////////////////////////// | |
1458 | ||
1459 | ||
1460 |