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164bfb53 | 1 | /************************************************************************* |
2 | * Copyright(c) 1998-2009, 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 | ||
27de2dfb | 16 | /* $Id$ */ |
17 | ||
18 | ||
164bfb53 | 19 | /////////////////////////////////////////////////////////////////////////// |
20 | // Dielectron TrackCuts // | |
21 | // // | |
22 | // // | |
23 | /* | |
24 | Detailed description | |
25 | ||
26 | ||
27 | */ | |
28 | // // | |
29 | /////////////////////////////////////////////////////////////////////////// | |
30 | ||
31 | ||
32 | ||
33 | #include "AliDielectronTrackCuts.h" | |
34 | #include "AliVTrack.h" | |
fb7d2d99 | 35 | #include "AliESDtrack.h" |
164bfb53 | 36 | |
37 | ClassImp(AliDielectronTrackCuts) | |
38 | ||
39 | AliDielectronTrackCuts::AliDielectronTrackCuts() : | |
40 | AliAnalysisCuts(), | |
41 | fV0DaughterCut(0), | |
fb7d2d99 | 42 | fNegateV0DauterCut(kFALSE), |
164bfb53 | 43 | fRequireITSRefit(kFALSE), |
fb7d2d99 | 44 | fRequireTPCRefit(kFALSE), |
45 | fTPCNclRobustCut(-1) | |
164bfb53 | 46 | { |
47 | // | |
48 | // Default Constructor | |
49 | // | |
50 | ||
51 | for (Int_t i = 0; i < 3; i++) | |
52 | fCutClusterRequirementITS[i] = kOff; | |
53 | ||
54 | } | |
55 | ||
56 | //______________________________________________ | |
57 | AliDielectronTrackCuts::AliDielectronTrackCuts(const char* name, const char* title) : | |
58 | AliAnalysisCuts(name, title), | |
59 | fV0DaughterCut(0), | |
fb7d2d99 | 60 | fNegateV0DauterCut(kFALSE), |
164bfb53 | 61 | fRequireITSRefit(kFALSE), |
fb7d2d99 | 62 | fRequireTPCRefit(kFALSE), |
63 | fTPCNclRobustCut(-1) | |
164bfb53 | 64 | { |
65 | // | |
66 | // Named Constructor | |
67 | // | |
68 | ||
69 | for (Int_t i = 0; i < 3; i++) | |
70 | fCutClusterRequirementITS[i] = kOff; | |
71 | ||
72 | } | |
73 | ||
74 | //______________________________________________ | |
75 | AliDielectronTrackCuts::~AliDielectronTrackCuts() | |
76 | { | |
77 | // | |
78 | // Default Destructor | |
79 | // | |
80 | ||
81 | } | |
82 | ||
83 | //______________________________________________ | |
84 | Bool_t AliDielectronTrackCuts::IsSelected(TObject* track) | |
85 | { | |
86 | // | |
87 | // Apply configured cuts | |
88 | // | |
89 | ||
90 | AliVTrack *vtrack=dynamic_cast<AliVTrack*>(track); | |
91 | if (!vtrack) return kFALSE; | |
92 | ||
93 | Bool_t accept=kTRUE; | |
94 | if (fV0DaughterCut) { | |
fb7d2d99 | 95 | Bool_t isV0=track->TestBit(BIT(fV0DaughterCut)); |
96 | if (fNegateV0DauterCut) isV0=!isV0; | |
97 | accept*=isV0; | |
164bfb53 | 98 | } |
99 | ||
100 | for (Int_t i=0;i<3;++i){ | |
101 | Bool_t layer1=TESTBIT(vtrack->GetITSClusterMap(),i*2); | |
102 | Bool_t layer2=TESTBIT(vtrack->GetITSClusterMap(),i*2+1); | |
103 | accept*=CheckITSClusterRequirement(fCutClusterRequirementITS[i], layer1, layer2); | |
104 | } | |
105 | ||
106 | if (fRequireITSRefit) accept*=(vtrack->GetStatus()&kITSrefit)>0; | |
107 | if (fRequireTPCRefit) accept*=(vtrack->GetStatus()&kTPCrefit)>0; | |
fb7d2d99 | 108 | |
109 | if (fTPCNclRobustCut>0){ | |
110 | AliESDtrack *tr=dynamic_cast<AliESDtrack*>(track); | |
111 | if (tr){ | |
112 | Int_t nclr=TMath::Nint(tr->GetTPCClusterInfo(2,1)); | |
113 | accept*=(nclr>fTPCNclRobustCut); | |
114 | } | |
115 | } | |
164bfb53 | 116 | return accept; |
117 | } | |
118 | ||
119 | //______________________________________________ | |
fb7d2d99 | 120 | void AliDielectronTrackCuts::SetV0DaughterCut(AliPID::EParticleType type, Bool_t negate/*=kFALSE*/) |
164bfb53 | 121 | { |
122 | // | |
123 | // Set V0 Daughter cut bit | |
124 | // | |
125 | const Int_t bitMap[5] = {14, -1, 15, -1, 16}; // convert the AliPID to bit positions | |
126 | fV0DaughterCut=bitMap[type]; | |
fb7d2d99 | 127 | fNegateV0DauterCut=negate; |
164bfb53 | 128 | } |
129 | ||
130 | //____________________________________________________________________ | |
131 | Bool_t AliDielectronTrackCuts::CheckITSClusterRequirement(ITSClusterRequirement req, Bool_t clusterL1, Bool_t clusterL2) const | |
132 | { | |
133 | // checks if the cluster requirement is fullfilled (in this case: return kTRUE) | |
134 | ||
135 | switch (req) | |
136 | { | |
137 | case kOff: return kTRUE; | |
138 | case kNone: return !clusterL1 && !clusterL2; | |
139 | case kAny: return clusterL1 || clusterL2; | |
140 | case kFirst: return clusterL1; | |
141 | case kOnlyFirst: return clusterL1 && !clusterL2; | |
142 | case kSecond: return clusterL2; | |
143 | case kOnlySecond: return clusterL2 && !clusterL1; | |
144 | case kBoth: return clusterL1 && clusterL2; | |
145 | } | |
146 | ||
147 | return kFALSE; | |
148 | } | |
149 |