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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), | |
35 | fMomMax(0.0), | |
36 | fRejectOutside(kFALSE), | |
37 | fRejectUnmatched(kFALSE) | |
38 | { | |
39 | // | |
40 | // Main constructor. | |
41 | // | |
42 | } | |
43 | ||
44 | //_________________________________________________________________________________________________ | |
45 | AliRsnCutPIDNSigma::AliRsnCutPIDNSigma | |
46 | (const AliRsnCutPIDNSigma& copy) : | |
47 | AliRsnCut(copy), | |
48 | fSpecies(copy.fSpecies), | |
49 | fDetector(copy.fDetector), | |
50 | fMomMin(copy.fMomMin), | |
51 | fMomMax(copy.fMomMax), | |
52 | fRejectOutside(copy.fRejectOutside), | |
53 | fRejectUnmatched(copy.fRejectUnmatched) | |
54 | { | |
55 | // | |
56 | // Copy constructor. | |
57 | // | |
58 | } | |
59 | ||
60 | //_________________________________________________________________________________________________ | |
61 | AliRsnCutPIDNSigma& AliRsnCutPIDNSigma::operator=(const AliRsnCutPIDNSigma& copy) | |
62 | { | |
63 | // | |
64 | // Assignment operator | |
65 | // | |
66 | ||
67 | AliRsnCut::operator=(copy); | |
68 | ||
69 | fSpecies = copy.fSpecies; | |
70 | fDetector = copy.fDetector; | |
71 | fMomMin = copy.fMomMin; | |
72 | fMomMax = copy.fMomMax; | |
73 | fRejectOutside = copy.fRejectOutside; | |
74 | fRejectUnmatched = copy.fRejectUnmatched; | |
75 | ||
76 | return (*this); | |
77 | } | |
78 | ||
79 | //_________________________________________________________________________________________________ | |
80 | Bool_t AliRsnCutPIDNSigma::IsSelected(TObject *object) | |
81 | { | |
82 | // | |
83 | // Cut checker. | |
84 | // | |
85 | ||
86 | // coherence check | |
87 | if (!TargetOK(object)) return kFALSE; | |
88 | ||
89 | // check initialization of PID object | |
90 | AliPIDResponse *pid = fEvent->GetPIDResponse(); | |
91 | if (!pid) { | |
92 | AliFatal("NULL PID response"); | |
93 | return kFALSE; | |
94 | } | |
95 | ||
96 | // get reference momentum, for range cut | |
97 | Double_t momentum = -1.0; | |
98 | if (!fDaughter->GetRefVtrack()) { | |
99 | AliDebugClass(2, "Referenced daughter is not a track"); | |
100 | return kFALSE; | |
101 | } | |
102 | if (fDetector == kTPC) | |
103 | momentum = fDaughter->GetRefVtrack()->GetTPCmomentum(); | |
104 | else | |
105 | momentum = fDaughter->GetRef()->P(); | |
106 | ||
107 | // check momentum range, if required | |
108 | if (fRejectOutside) { | |
109 | if (momentum < fMomMin || momentum > fMomMax) { | |
110 | AliDebugClass(2, Form("Track momentum = %.5f, outside allowed range [%.2f - %.2f]", momentum, fMomMin, fMomMax)); | |
111 | return kFALSE; | |
112 | } | |
113 | } | |
114 | ||
115 | // matching check, if required | |
116 | if (fRejectUnmatched) { | |
117 | switch (fDetector) { | |
118 | case kITS: | |
119 | if (!IsITS()) { | |
120 | AliDebug(3, "Rejecting track not matched in ITS"); | |
121 | return kFALSE; | |
122 | } | |
123 | break; | |
124 | case kTPC: | |
125 | if (!IsTPC()) { | |
126 | AliDebug(3, "Rejecting track not matched in TPC"); | |
127 | return kFALSE; | |
128 | } | |
129 | break; | |
130 | case kTOF: | |
131 | if (!IsTOF()) { | |
132 | AliDebug(3, "Rejecting track not matched in TOF"); | |
133 | return kFALSE; | |
134 | } | |
135 | break; | |
136 | default: | |
137 | AliWarning("Required to reject unmatched tracks, but no detector defined. Track rejected"); | |
138 | return kFALSE; | |
139 | } | |
140 | } | |
141 | ||
142 | // check PID | |
143 | // the number of sigmas is set as cut value, which is then checked | |
144 | // using the basic functions available in AliRsnCut | |
145 | switch (fDetector) { | |
146 | case kITS: | |
147 | fCutValueD = pid->NumberOfSigmasITS(fDaughter->GetRef(), fSpecies); | |
148 | break; | |
149 | case kTPC: | |
150 | fCutValueD = pid->NumberOfSigmasTPC(fDaughter->GetRef(), fSpecies); | |
151 | break; | |
152 | case kTOF: | |
153 | fCutValueD = pid->NumberOfSigmasTOF(fDaughter->GetRef(), fSpecies); | |
154 | break; | |
155 | default: | |
156 | fCutValueD = 1E20; | |
157 | return kFALSE; | |
158 | } | |
159 | ||
160 | return OkRangeD(); | |
161 | } | |
162 | ||
163 | //_________________________________________________________________________________________________ | |
164 | void AliRsnCutPIDNSigma::Print(const Option_t *) const | |
165 | { | |
166 | // | |
167 | // Print information on this cut | |
168 | // | |
169 | ||
4f926d1d | 170 | Char_t mom[200], det[100], match[200]; |
c865cb1d | 171 | |
172 | if (fRejectOutside) | |
e187bd70 | 173 | snprintf(mom, 200, "Tracks are accepted only in the momentum range %.2f --> %.2f", fMomMin, fMomMax); |
c865cb1d | 174 | else |
e187bd70 | 175 | snprintf(mom, 200, "No check in momentum range"); |
c865cb1d | 176 | |
177 | if (fRejectUnmatched) | |
e187bd70 | 178 | snprintf(match, 200, "Unmatched tracks are rejected"); |
c865cb1d | 179 | else |
e187bd70 | 180 | snprintf(match, 200, "No check on track matching"); |
c865cb1d | 181 | |
182 | switch (fDetector) { | |
4f926d1d | 183 | case kITS: snprintf(det, 3, "ITS"); break; |
184 | case kTPC: snprintf(det, 3, "TPC"); break; | |
185 | case kTOF: snprintf(det, 3, "TOF"); break; | |
186 | default : snprintf(det, 3, "undefined"); | |
c865cb1d | 187 | } |
188 | ||
189 | AliInfo(Form("Cut name : %s", GetName())); | |
190 | AliInfo(Form("--> PID detector : %s", det)); | |
191 | AliInfo(Form("--> match criteria: %s", match)); | |
192 | AliInfo(Form("--> momentum range: %s", mom)); | |
193 | } |