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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 | /* $Id$ */ | |
17 | ||
18 | //----------------------------------------------------------------- | |
19 | // Implementation of the combined PID class | |
20 | // For the Event Summary Data Class | |
21 | // produced by the reconstruction process | |
22 | // and containing information on the particle identification | |
23 | // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch | |
24 | //----------------------------------------------------------------- | |
25 | ||
26 | #include "AliESDpid.h" | |
27 | #include "AliESDEvent.h" | |
28 | #include "AliESDtrack.h" | |
29 | ||
30 | ClassImp(AliESDpid) | |
31 | ||
32 | //_________________________________________________________________________ | |
33 | Int_t AliESDpid::MakePID(AliESDEvent *event) | |
34 | { | |
35 | // | |
36 | // Combine the information of various detectors | |
37 | // to determine the Particle Identification | |
38 | // | |
39 | Int_t ntrk=event->GetNumberOfTracks(); | |
40 | for (Int_t i=0; i<ntrk; i++) { | |
41 | Int_t ns=AliPID::kSPECIES; | |
42 | Double_t p[10]={1.,1.,1.,1.,1.,1.,1.,1.,1.,1.}; | |
43 | ||
44 | AliESDtrack *t=event->GetTrack(i); | |
45 | ||
46 | if (t->IsOn(AliESDtrack::kITSpid)) { | |
47 | Double_t d[10]; | |
48 | t->GetITSpid(d); | |
49 | for (Int_t j=0; j<ns; j++) p[j]*=d[j]; | |
50 | } | |
51 | ||
52 | if (t->IsOn(AliESDtrack::kTPCpid)) { | |
53 | Double_t d[10]; | |
54 | t->GetTPCpid(d); | |
55 | for (Int_t j=0; j<ns; j++) p[j]*=d[j]; | |
56 | } | |
57 | ||
58 | if (t->IsOn(AliESDtrack::kTRDpid)) { | |
59 | Double_t d[10]; | |
60 | t->GetTRDpid(d); | |
61 | for (Int_t j=0; j<ns; j++) p[j]*=d[j]; | |
62 | } | |
63 | ||
64 | if (t->IsOn(AliESDtrack::kTOFpid)) { | |
65 | Double_t d[10]; | |
66 | t->GetTOFpid(d); | |
67 | for (Int_t j=0; j<ns; j++) p[j]*=d[j]; | |
68 | } | |
69 | ||
70 | if (t->IsOn(AliESDtrack::kHMPIDpid)) { | |
71 | Double_t d[10]; | |
72 | t->GetHMPIDpid(d); | |
73 | for (Int_t j=0; j<ns; j++) p[j]*=d[j]; | |
74 | } | |
75 | ||
76 | t->SetESDpid(p); | |
77 | } | |
78 | ||
79 | return 0; | |
80 | } |