1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 /* History of cvs commits:
21 * Revision 1.39 2005/05/28 14:19:04 schutz
22 * Compilation warnings fixed by T.P.
26 //_________________________________________________________________________
27 // A Particle modified by PHOS response and produced by AliPHOSvFast
28 // To become a general class of AliRoot ?
30 // This is also a base class for AliPHOSRecParticle produced by AliPHOSPIDv1
31 // The rec.particle type is to be defined by AliPHOSvFast or AliPHOSPIDv1
33 //*-- Author: Yves Schutz (SUBATECH)
35 // --- ROOT system ---
37 // --- Standard library ---
39 // --- AliRoot header files ---
41 #include "AliPHOSFastRecParticle.h"
43 #include "TPaveText.h"
45 ClassImp(AliPHOSFastRecParticle)
47 //____________________________________________________________________________
48 AliPHOSFastRecParticle::AliPHOSFastRecParticle() :
55 for(Int_t i=0; i<AliPID::kSPECIESCN; i++) {
61 //____________________________________________________________________________
62 AliPHOSFastRecParticle::AliPHOSFastRecParticle(const AliPHOSFastRecParticle & rp)
64 fIndexInList(rp.fIndexInList),//?
69 fPdgCode = rp.fPdgCode;
70 fStatusCode = rp.fStatusCode;
71 fMother[0] = rp.fMother[0];
72 fMother[1] = rp.fMother[1];
73 fDaughter[0] = rp.fDaughter[0];
74 fDaughter[1] = rp.fDaughter[1];
76 fCalcMass = rp.fCalcMass;
85 fPolarTheta = rp.fPolarTheta;
86 fPolarPhi = rp.fPolarPhi;
87 fParticlePDG = rp.fParticlePDG;
89 for(Int_t i=0; i<AliPID::kSPECIESCN; i++) {
95 //____________________________________________________________________________
96 AliPHOSFastRecParticle::AliPHOSFastRecParticle(const TParticle & pp) :
101 // ctor from a TParticle (crummy?!)
102 TParticle & pnoconst = (TParticle &)(pp) ;
103 AliPHOSFastRecParticle & p = (AliPHOSFastRecParticle &)(pnoconst) ;
104 fPdgCode = p.fPdgCode;
105 fStatusCode = p.fStatusCode;
106 fMother[0] = p.fMother[0];
107 fMother[1] = p.fMother[1];
108 fDaughter[0] = p.fDaughter[0];
109 fDaughter[1] = p.fDaughter[1];
111 fCalcMass = p.fCalcMass;
120 fPolarTheta = p.fPolarTheta;
121 fPolarPhi = p.fPolarPhi;
122 fParticlePDG = p.fParticlePDG;
124 for(Int_t i=0; i<AliPID::kSPECIESCN; i++) {
130 //____________________________________________________________________________
131 AliPHOSFastRecParticle & AliPHOSFastRecParticle::operator = (const AliPHOSFastRecParticle &)
133 Fatal("operator =", "not implemented");
137 //____________________________________________________________________________
138 Int_t AliPHOSFastRecParticle::DistancetoPrimitive(Int_t px, Int_t py)
140 // Compute distance from point px,py to a AliPHOSFastRecParticle considered as a Tmarker
141 // Compute the closest distance of approach from point px,py to this marker.
142 // The distance is computed in pixels units.
144 Double_t kRADDEG = 180. / TMath::Pi() ;
145 Coord_t x = Phi() * kRADDEG ;
146 Coord_t y = Theta() * kRADDEG ;
147 const Int_t kMaxDiff = 10;
148 Int_t pxm = gPad->XtoAbsPixel(x);
149 Int_t pym = gPad->YtoAbsPixel(y);
150 Int_t dist = (px-pxm)*(px-pxm) + (py-pym)*(py-pym);
152 if (dist > kMaxDiff) return 9999;
156 //___________________________________________________________________________
157 void AliPHOSFastRecParticle::Draw(Option_t *option)
159 // Draw this AliPHOSFastRecParticle with its current attributes
164 //______________________________________________________________________________
165 void AliPHOSFastRecParticle::ExecuteEvent(Int_t event, Int_t , Int_t )
167 // Execute action corresponding to one event
168 // This member function is called when a AliPHOSFastRecParticle is clicked with the locator
170 if (!gPad->IsEditable())
173 static TPaveText * clustertext = 0 ;
178 Double_t kRADDEG = 180. / TMath::Pi() ;
179 Coord_t x = Phi() * kRADDEG ;
180 Coord_t y = Theta() * kRADDEG ;
181 clustertext = new TPaveText(x-1, y+1, x+5, y+3, "") ;
184 snprintf( line1,40, "PID: %s ", (const char*)Name() ) ;
185 snprintf( line2,40, "ENERGY: %f ", Energy() ) ;
186 clustertext ->AddText(line1) ;
187 clustertext ->AddText(line2) ;
188 clustertext ->Draw("");
203 //____________________________________________________________________________
204 Bool_t AliPHOSFastRecParticle::IsPhoton(TString purity) const
206 // Rec.Particle is a photon if it has a photon-like shape, fast and neutral
207 // photon-like shape is defined with a purity "low", "medium" or "high"
210 Bool_t photonLike = kFALSE;
211 if (purity == "low" ) photonLike = TestPIDBit(6);
212 else if (purity == "medium") photonLike = TestPIDBit(7);
213 else if (purity == "high" ) photonLike = TestPIDBit(8);
214 if (photonLike && // photon by PCA
215 (TestPIDBit(5)||TestPIDBit(4)||TestPIDBit(3))&& // fast by TOF
216 (TestPIDBit(2)||TestPIDBit(1)||TestPIDBit(0))&& // neutral by CPV
217 !TestPIDBit(14)) // no charged track
223 //____________________________________________________________________________
224 Bool_t AliPHOSFastRecParticle::IsPi0(TString purity) const
226 // Rec.Particle is a pi0 if it has a pi0-like shape, fast and neutral
227 // pi0-like shape is defined with a purity "low", "medium" or "high"
230 Bool_t pi0Like = kFALSE;
231 if (purity == "low" ) pi0Like = TestPIDBit(9);
232 else if (purity == "medium") pi0Like = TestPIDBit(10);
233 else if (purity == "high" ) pi0Like = TestPIDBit(11);
235 AliError(Form("Wrong purity type: %s",purity.Data()));
236 if (pi0Like && // pi0 by PCA
237 (TestPIDBit(5)||TestPIDBit(4)||TestPIDBit(3))&& // fast by TOF
238 (TestPIDBit(2)||TestPIDBit(1)||TestPIDBit(0))&& // neutral by CPV
239 !TestPIDBit(14)) // no charged track
245 //____________________________________________________________________________
246 Bool_t AliPHOSFastRecParticle::IsElectron(TString purity) const
248 // Rec.Particle is an electron if it has a photon-like shape, fast and charged
249 // photon-like shape is defined with a purity "low", "medium" or "high"
252 Bool_t photonLike = kFALSE;
253 if (purity == "low" ) photonLike = TestPIDBit(6);
254 else if (purity == "medium") photonLike = TestPIDBit(7);
255 else if (purity == "high" ) photonLike = TestPIDBit(8);
257 AliError(Form("Wrong purity type: %s",purity.Data()));
259 if (photonLike && // photon by PCA
260 (TestPIDBit(5)|| TestPIDBit(4)|| TestPIDBit(3))&& // fast by TOF
261 (!TestPIDBit(2)||!TestPIDBit(1)||!TestPIDBit(0))&& // charged by CPV
262 TestPIDBit(14)) // no charged track
268 //____________________________________________________________________________
269 Bool_t AliPHOSFastRecParticle::IsEleCon(TString purity) const
271 // Rec.Particle is an electron if it has a photon-like shape, fast and charged
272 // photon-like shape is defined with a purity "low", "medium" or "high"
275 Bool_t photonLike = kFALSE;
276 if (purity == "low" ) photonLike = TestPIDBit(6);
277 else if (purity == "medium") photonLike = TestPIDBit(7);
278 else if (purity == "high" ) photonLike = TestPIDBit(8);
280 AliError(Form("Wrong purity type: %s",purity.Data()));
282 if (photonLike && // photon by PCA
283 (TestPIDBit(5)|| TestPIDBit(4)|| TestPIDBit(3))&& // fast by TOF
284 (!TestPIDBit(2)||!TestPIDBit(1)||!TestPIDBit(0))&& // charged by CPV
285 !TestPIDBit(14)) // no charged track
291 //____________________________________________________________________________
292 Bool_t AliPHOSFastRecParticle::IsHardPhoton() const
294 // Rec.Particle is a hard photon (E > 30 GeV) if its second moment M2x
295 // corresponds to photons
296 if (TestPIDBit(12) && !TestPIDBit(14))
302 //____________________________________________________________________________
303 Bool_t AliPHOSFastRecParticle::IsHardPi0() const
305 // Rec.Particle is a hard pi0 (E > 30 GeV) if its second moment M2x
306 // corresponds to pi0
307 if (TestPIDBit(13)&& !TestPIDBit(14))
313 //____________________________________________________________________________
314 Bool_t AliPHOSFastRecParticle::IsHadron() const
316 // Rec.Particle is an hadron if it does not look like
317 // a low-purity photon nor low-purity pi0
319 if ( !TestPIDBit(6) && !TestPIDBit(9) ) // not photon nor pi0
325 //____________________________________________________________________________
326 Bool_t AliPHOSFastRecParticle::IsChargedHadron() const
328 // Rec.Particle is a charged hadron if it does not look like
329 // a low-purity photon nor low-purity pi0 and is low-purity charged
331 if ( !TestPIDBit(6) && !TestPIDBit(9) && // not photon nor pi0
332 !TestPIDBit(2)) // charged by CPV
338 //____________________________________________________________________________
339 Bool_t AliPHOSFastRecParticle::IsNeutralHadron() const
341 // Rec.Particle is a neutral hadron if it does not look like
342 // a low-purity photon nor low-purity pi0 and is high-purity neutral
344 if ( !TestPIDBit(6) && !TestPIDBit(9) && // not photon nor pi0
345 TestPIDBit(2)) // neutral by CPV
351 //____________________________________________________________________________
352 Bool_t AliPHOSFastRecParticle::IsFastChargedHadron() const
354 // Rec.Particle is a fast charged hadron if it does not look like
355 // a low-purity photon nor low-purity pi0, is low-purity charged
356 // and is high-purity fast
358 if ( !TestPIDBit(6) && !TestPIDBit(9) && // not photon nor pi0
359 !TestPIDBit(2) && // charged by CPV
360 TestPIDBit(5)) // fast by TOF
366 //____________________________________________________________________________
367 Bool_t AliPHOSFastRecParticle::IsSlowChargedHadron() const
369 // Rec.Particle is a slow neutral hadron if it does not look like
370 // a low-purity photon nor low-purity pi0, is high-purity neutral
371 // and is not high-purity fast
373 if ( !TestPIDBit(6) && !TestPIDBit(9) && // not photon nor pi0
374 !TestPIDBit(2) && // charged by CPV
375 !TestPIDBit(5)) // slow by TOF
382 //____________________________________________________________________________
383 Bool_t AliPHOSFastRecParticle::IsFastNeutralHadron() const
385 // Rec.Particle is a fast neutral hadron if it does not look like
386 // a low-purity photon nor low-purity pi0, is high-purity neutral
387 // and is high-purity fast
389 if ( !TestPIDBit(6) && !TestPIDBit(9) && // not photon nor pi0
390 TestPIDBit(2) && // neutral by CPV
391 TestPIDBit(5)) // fast by TOF
397 //____________________________________________________________________________
398 Bool_t AliPHOSFastRecParticle::IsSlowNeutralHadron() const
400 // Rec.Particle is a slow neutral hadron if it does not look like
401 // a low-purity photon nor low-purity pi0, is high-purity neutral
402 // and is not high-purity fast
404 if ( !TestPIDBit(6) && !TestPIDBit(9) && // not photon nor pi0
405 TestPIDBit(2) && // neutral by CPV
406 !TestPIDBit(5)) // slow by TOF
412 //____________________________________________________________________________
413 TString AliPHOSFastRecParticle::Name() const
415 // Returns the name of the particle type (only valid if PIDv1 is employed)
419 name = "Undefined particle" ;
422 name = "Photon low purity, ";
423 else if (IsPhoton("medium"))
424 name = "Photon medium purity, ";
425 else if (IsPhoton("high"))
426 name = "Photon high purity, ";
429 name = "Pi0 low purity, ";
430 else if (IsPi0("medium"))
431 name = "Pi0 medium purity, ";
432 else if (IsPi0("high"))
433 name = "Pi0 high purity, ";
435 if (IsElectron("low"))
436 name = "Electron low purity, ";
437 else if (IsElectron("medium"))
438 name = "Electron medium purity, ";
439 else if (IsElectron("high"))
440 name = "Electron high purity, ";
444 if (IsChargedHadron()) {
445 name.Prepend("charged, ");
446 if (IsFastChargedHadron())
447 name.Prepend("fast, ");
448 else if (IsSlowChargedHadron())
449 name.Prepend("slow, ");
451 else if (IsNeutralHadron()) {
452 name.Prepend("neutral, ");
453 if (IsFastNeutralHadron())
454 name.Prepend("fast, ");
455 else if (IsSlowNeutralHadron())
456 name.Prepend("slow, ");
464 //______________________________________________________________________________
465 void AliPHOSFastRecParticle::SetType(Int_t type) {
466 // sets the particle type
467 // bit-mask of the particle type means the following:
468 // bits 0,1,2 - neutral particle with low, medium and high purity
469 // bits 3.4,5 - fast particle with low, medium and high purity
470 // bits 6.7,8 - photon shower with low, medium and high purity
471 // bits 9,10,11 - hard-pi0 shower with low, medium and high purity
475 if((type == 127) || (fType == 511) || (fType == 255) ||(fType == 383)||(fType == 447)){
480 if ((fType == 63)|| ((fType < 8)&&(fType > 0)) ){
484 if ( ((fType == 504) || (fType == 505) ||(fType == 248)||(fType == 249)||(fType == 120)||(fType == 121)) ){
488 if ((fType == 448) || (fType == 449) ||(fType == 192)||(fType == 193)||(fType == 64)||(fType == 64)){
492 if((fType == 56)||(fType == 57)){
503 //______________________________________________________________________________
504 void AliPHOSFastRecParticle::Paint(Option_t *)
506 // Paint this ALiRecParticle in theta,phi coordinate as a TMarker with its current attributes
508 Double_t kRADDEG = 180. / TMath::Pi() ;
509 Coord_t x = Phi() * kRADDEG ;
510 Coord_t y = Theta() * kRADDEG ;
511 Color_t markercolor = 1 ;
512 Size_t markersize = 1. ;
513 Style_t markerstyle = 5 ;
515 if (!gPad->IsBatch()) {
516 gVirtualX->SetMarkerColor(markercolor) ;
517 gVirtualX->SetMarkerSize (markersize) ;
518 gVirtualX->SetMarkerStyle(markerstyle) ;
520 gPad->SetAttMarkerPS(markercolor,markerstyle,markersize) ;
521 gPad->PaintPolyMarker(1,&x,&y,"") ;
524 //____________________________________________________________________________
525 void AliPHOSFastRecParticle::Print(const Option_t *)const
527 // Print the type, energy and momentum of the reconstructed particle
529 AliInfo(Form("Print -----------------------------")) ;
530 printf("PID bits are %d%d%d %d%d%d %d%d%d %d%d%d",
531 TestPIDBit(0),TestPIDBit(1),
532 TestPIDBit(2),TestPIDBit(3),
533 TestPIDBit(4),TestPIDBit(5),
534 TestPIDBit(6),TestPIDBit(7),
535 TestPIDBit(8),TestPIDBit(9),
536 TestPIDBit(10),TestPIDBit(11)) ;
537 printf(", type is \"%s\"\n", Name().Data()) ;
538 printf(" (E,Px,Py,Pz) = (% .3e, % .3e, % .3e, % .3e) GeV\n",
543 printf(" TOF = %.3e ns\n", ToF() ) ;
544 printf(" PID weight: \n" ) ;
545 printf(" photon -> %f\n", fPID[AliPID::kPhoton] ) ;
546 printf(" electron -> %f\n", fPID[AliPID::kElectron] ) ;
547 printf(" Conversion electron -> %f\n", fPID[AliPID::kEleCon] ) ;
548 printf(" muon -> %f\n", fPID[AliPID::kMuon] ) ;
549 printf(" neutral pion -> %f\n", fPID[AliPID::kPi0] ) ;
550 printf(" charged pion -> %f\n", fPID[AliPID::kPion] ) ;
551 printf(" charged kaon -> %f\n", fPID[AliPID::kKaon] ) ;
552 printf(" neutral kaon -> %f\n", fPID[AliPID::kKaon0] ) ;
553 printf(" proton -> %f\n", fPID[AliPID::kProton] ) ;
554 printf(" neutron -> %f\n", fPID[AliPID::kNeutron] ) ;