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c865cb1d | 1 | // |
2 | // Class AliRsnCutPIDNSigma | |
3 | // | |
4 | // General implementation of a single cut strategy, which can be: | |
5 | // - a value contained in a given interval [--> IsBetween() ] | |
6 | // - a value equal to a given reference [--> MatchesValue()] | |
7 | // | |
8 | // In all cases, the reference value(s) is (are) given as data members | |
9 | // and each kind of cut requires a given value type (Int, UInt, Double), | |
10 | // but the cut check procedure is then automatized and chosen thanks to | |
11 | // an enumeration of the implemented cut types. | |
12 | // At the end, the user (or any other point which uses this object) has | |
13 | // to use the method IsSelected() to check if this cut has been passed. | |
14 | // | |
15 | // authors: Martin Vala (martin.vala@cern.ch) | |
16 | // Alberto Pulvirenti (alberto.pulvirenti@ct.infn.it) | |
17 | // | |
18 | ||
19 | #include "AliPIDResponse.h" | |
20 | #include "AliAnalysisManager.h" | |
21 | #include "AliInputEventHandler.h" | |
22 | #include "AliMultiInputEventHandler.h" | |
23 | ||
24 | #include "AliRsnCutPIDNSigma.h" | |
25 | ||
26 | ClassImp(AliRsnCutPIDNSigma) | |
27 | ||
28 | //_________________________________________________________________________________________________ | |
29 | AliRsnCutPIDNSigma::AliRsnCutPIDNSigma | |
30 | (const char *name, AliPID::EParticleType species, EDetector det, Double_t nsigma) : | |
31 | AliRsnCut(name, AliRsnCut::kDaughter, -nsigma, nsigma), | |
32 | fSpecies(species), | |
33 | fDetector(det), | |
34 | fMomMin(0.0), | |
f34f960b | 35 | fMomMax(1E20), |
c865cb1d | 36 | fRejectUnmatched(kFALSE) |
37 | { | |
38 | // | |
39 | // Main constructor. | |
40 | // | |
41 | } | |
42 | ||
43 | //_________________________________________________________________________________________________ | |
44 | AliRsnCutPIDNSigma::AliRsnCutPIDNSigma | |
45 | (const AliRsnCutPIDNSigma& copy) : | |
46 | AliRsnCut(copy), | |
47 | fSpecies(copy.fSpecies), | |
48 | fDetector(copy.fDetector), | |
49 | fMomMin(copy.fMomMin), | |
50 | fMomMax(copy.fMomMax), | |
c865cb1d | 51 | fRejectUnmatched(copy.fRejectUnmatched) |
52 | { | |
53 | // | |
54 | // Copy constructor. | |
55 | // | |
56 | } | |
57 | ||
58 | //_________________________________________________________________________________________________ | |
59 | AliRsnCutPIDNSigma& AliRsnCutPIDNSigma::operator=(const AliRsnCutPIDNSigma& copy) | |
60 | { | |
61 | // | |
62 | // Assignment operator | |
63 | // | |
64 | ||
65 | AliRsnCut::operator=(copy); | |
66 | ||
67 | fSpecies = copy.fSpecies; | |
68 | fDetector = copy.fDetector; | |
69 | fMomMin = copy.fMomMin; | |
70 | fMomMax = copy.fMomMax; | |
c865cb1d | 71 | fRejectUnmatched = copy.fRejectUnmatched; |
72 | ||
73 | return (*this); | |
74 | } | |
75 | ||
76 | //_________________________________________________________________________________________________ | |
77 | Bool_t AliRsnCutPIDNSigma::IsSelected(TObject *object) | |
78 | { | |
79 | // | |
80 | // Cut checker. | |
81 | // | |
82 | ||
83 | // coherence check | |
84 | if (!TargetOK(object)) return kFALSE; | |
85 | ||
86 | // check initialization of PID object | |
87 | AliPIDResponse *pid = fEvent->GetPIDResponse(); | |
88 | if (!pid) { | |
89 | AliFatal("NULL PID response"); | |
90 | return kFALSE; | |
91 | } | |
92 | ||
93 | // get reference momentum, for range cut | |
94 | Double_t momentum = -1.0; | |
f34f960b | 95 | if (!fDaughter->Ref2Vtrack()) { |
c865cb1d | 96 | AliDebugClass(2, "Referenced daughter is not a track"); |
97 | return kFALSE; | |
98 | } | |
99 | if (fDetector == kTPC) | |
f34f960b | 100 | momentum = fDaughter->Ref2Vtrack()->GetTPCmomentum(); |
c865cb1d | 101 | else |
102 | momentum = fDaughter->GetRef()->P(); | |
103 | ||
104 | // check momentum range, if required | |
f34f960b | 105 | if (momentum < fMomMin || momentum > fMomMax) { |
106 | AliDebugClass(2, Form("Track momentum = %.5f, outside allowed range [%.2f - %.2f]", momentum, fMomMin, fMomMax)); | |
107 | return kFALSE; | |
c865cb1d | 108 | } |
109 | ||
110 | // matching check, if required | |
111 | if (fRejectUnmatched) { | |
112 | switch (fDetector) { | |
113 | case kITS: | |
f34f960b | 114 | if (!IsITS(fDaughter->Ref2Vtrack())) { |
c865cb1d | 115 | AliDebug(3, "Rejecting track not matched in ITS"); |
116 | return kFALSE; | |
117 | } | |
118 | break; | |
119 | case kTPC: | |
f34f960b | 120 | if (!IsTPC(fDaughter->Ref2Vtrack())) { |
c865cb1d | 121 | AliDebug(3, "Rejecting track not matched in TPC"); |
122 | return kFALSE; | |
123 | } | |
124 | break; | |
125 | case kTOF: | |
f34f960b | 126 | if (!IsTOF(fDaughter->Ref2Vtrack())) { |
c865cb1d | 127 | AliDebug(3, "Rejecting track not matched in TOF"); |
128 | return kFALSE; | |
129 | } | |
130 | break; | |
131 | default: | |
132 | AliWarning("Required to reject unmatched tracks, but no detector defined. Track rejected"); | |
133 | return kFALSE; | |
134 | } | |
135 | } | |
136 | ||
137 | // check PID | |
138 | // the number of sigmas is set as cut value, which is then checked | |
139 | // using the basic functions available in AliRsnCut | |
140 | switch (fDetector) { | |
141 | case kITS: | |
142 | fCutValueD = pid->NumberOfSigmasITS(fDaughter->GetRef(), fSpecies); | |
143 | break; | |
144 | case kTPC: | |
145 | fCutValueD = pid->NumberOfSigmasTPC(fDaughter->GetRef(), fSpecies); | |
146 | break; | |
147 | case kTOF: | |
148 | fCutValueD = pid->NumberOfSigmasTOF(fDaughter->GetRef(), fSpecies); | |
149 | break; | |
150 | default: | |
c865cb1d | 151 | return kFALSE; |
152 | } | |
153 | ||
154 | return OkRangeD(); | |
155 | } | |
156 | ||
157 | //_________________________________________________________________________________________________ | |
158 | void AliRsnCutPIDNSigma::Print(const Option_t *) const | |
159 | { | |
160 | // | |
161 | // Print information on this cut | |
162 | // | |
163 | ||
4f926d1d | 164 | Char_t mom[200], det[100], match[200]; |
c865cb1d | 165 | |
166 | if (fRejectUnmatched) | |
e187bd70 | 167 | snprintf(match, 200, "Unmatched tracks are rejected"); |
c865cb1d | 168 | else |
e187bd70 | 169 | snprintf(match, 200, "No check on track matching"); |
c865cb1d | 170 | |
171 | switch (fDetector) { | |
4f926d1d | 172 | case kITS: snprintf(det, 3, "ITS"); break; |
173 | case kTPC: snprintf(det, 3, "TPC"); break; | |
174 | case kTOF: snprintf(det, 3, "TOF"); break; | |
175 | default : snprintf(det, 3, "undefined"); | |
c865cb1d | 176 | } |
177 | ||
178 | AliInfo(Form("Cut name : %s", GetName())); | |
179 | AliInfo(Form("--> PID detector : %s", det)); | |
180 | AliInfo(Form("--> match criteria: %s", match)); | |
181 | AliInfo(Form("--> momentum range: %s", mom)); | |
182 | } |