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Commit | Line | Data |
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2dab9030 | 1 | |
b9bbd271 | 2 | // |
3 | // Class AliRsnValue | |
4 | // | |
5 | // Definition of a single value which can be computed | |
6 | // from any of the defined input objects implemented | |
7 | // in the resonance package. | |
8 | // | |
9 | ||
10 | #include "AliRsnEvent.h" | |
11 | #include "AliRsnDaughter.h" | |
2dab9030 | 12 | #include "AliRsnMother.h" |
b9bbd271 | 13 | #include "AliRsnPairDef.h" |
14 | ||
15 | #include "AliRsnValue.h" | |
16 | ||
17 | ClassImp(AliRsnValue) | |
18 | ||
19 | //_____________________________________________________________________________ | |
2dab9030 | 20 | AliRsnValue::AliRsnValue() : |
0d73200d | 21 | TNamed(), |
2dab9030 | 22 | fType(kValueTypes), |
23 | fNBins(0), | |
24 | fMin(0.0), | |
25 | fMax(0.0), | |
26 | fValue(0.0) | |
27 | { | |
28 | // | |
29 | // Main constructor (version 1) | |
30 | // This can also be created without any argument. | |
31 | // | |
32 | } | |
33 | ||
34 | //_____________________________________________________________________________ | |
35 | AliRsnValue::AliRsnValue | |
0d73200d | 36 | (const char *name, EValueType type, Int_t nbins, Double_t min, Double_t max) : |
37 | TNamed(name, ""), | |
2dab9030 | 38 | fType(type), |
39 | fNBins(0), | |
40 | fMin(0.0), | |
41 | fMax(0.0), | |
42 | fValue(0.0) | |
b9bbd271 | 43 | { |
44 | // | |
2dab9030 | 45 | // Main constructor (version 1) |
46 | // This can also be created without any argument. | |
b9bbd271 | 47 | // |
2dab9030 | 48 | |
49 | SetBins(nbins, min, max); | |
50 | } | |
51 | ||
52 | //_____________________________________________________________________________ | |
53 | AliRsnValue::AliRsnValue | |
0d73200d | 54 | (const char *name, EValueType type, Double_t min, Double_t max, Double_t step) : |
55 | TNamed(name, ""), | |
2dab9030 | 56 | fType(type), |
57 | fNBins(0), | |
58 | fMin(0.0), | |
59 | fMax(0.0), | |
60 | fValue(0.0) | |
61 | { | |
62 | // | |
63 | // Main constructor (version 2) | |
64 | // | |
65 | ||
66 | SetBins(min, max, step); | |
b9bbd271 | 67 | } |
68 | ||
0d73200d | 69 | /* |
b9bbd271 | 70 | //_____________________________________________________________________________ |
71 | const char* AliRsnValue::GetName() const | |
72 | { | |
73 | // | |
74 | // Return the name of this object defined by the type | |
75 | // | |
76 | ||
77 | switch (fType) | |
78 | { | |
b9bbd271 | 79 | case kTrack1P: return "P1"; |
80 | case kTrack2P: return "P2"; | |
81 | case kTrack1Pt: return "PT1"; | |
82 | case kTrack2Pt: return "PT2"; | |
83 | case kPairInvMass: return "IM"; | |
84 | case kPairInvMassMC: return "IMMC"; | |
85 | case kPairInvMassRes: return "IMRES"; | |
86 | case kPairPt: return "PT"; | |
87 | case kPairEta: return "ETA"; | |
88 | case kPairMt: return "MT"; | |
89 | case kPairY: return "Y"; | |
90 | case kEventMult: return "MULT"; | |
91 | default: return "UNDEF"; | |
92 | } | |
93 | } | |
0d73200d | 94 | */ |
b9bbd271 | 95 | |
96 | //_____________________________________________________________________________ | |
2dab9030 | 97 | TArrayD AliRsnValue::GetArray() const |
b9bbd271 | 98 | { |
99 | // | |
2dab9030 | 100 | // Creates an array with all bin edges |
b9bbd271 | 101 | // |
102 | ||
2dab9030 | 103 | TArrayD out(fNBins + 1); |
104 | ||
105 | Int_t i; | |
106 | Double_t step = (fMax - fMin) / (Double_t)fNBins; | |
107 | ||
108 | for (i = 0; i <= fNBins; i++) out[i] = fMin + step * (Double_t)i; | |
109 | ||
110 | return out; | |
111 | } | |
112 | ||
113 | //_____________________________________________________________________________ | |
114 | void AliRsnValue::SetBins(Int_t n, Double_t min, Double_t max) | |
115 | { | |
116 | // | |
117 | // Set binning for histogram. | |
118 | // | |
119 | ||
120 | fNBins = n; | |
121 | ||
122 | if (min < max) | |
b9bbd271 | 123 | { |
2dab9030 | 124 | fMin = min; |
125 | fMax = max; | |
126 | } | |
127 | else | |
128 | { | |
129 | fMin = max; | |
130 | fMax = min; | |
b9bbd271 | 131 | } |
132 | } | |
133 | ||
134 | //_____________________________________________________________________________ | |
2dab9030 | 135 | void AliRsnValue::SetBins(Double_t min, Double_t max, Double_t step) |
136 | { | |
137 | // | |
138 | // Binning for histogram. | |
139 | // | |
140 | ||
141 | if (min < max) | |
142 | { | |
143 | fMin = min; | |
144 | fMax = max; | |
145 | } | |
146 | else | |
147 | { | |
148 | fMin = max; | |
149 | fMax = min; | |
150 | } | |
151 | ||
152 | fNBins = (Int_t)((fMax - fMin) / (step)) + 1; | |
153 | } | |
154 | ||
155 | //_____________________________________________________________________________ | |
2e521c29 | 156 | Bool_t AliRsnValue::Eval(AliRsnMother * const mother, AliRsnPairDef * const pairDef, AliRsnEvent * const event) |
b9bbd271 | 157 | { |
158 | // | |
159 | // Evaluation of the required value. | |
160 | // Checks that the passed object is of the right type | |
161 | // and if this check is successful, returns the required value. | |
162 | // The output of the function tells if it was successful, | |
163 | // and the values must be taken with GetValue(). | |
164 | // | |
165 | ||
2dab9030 | 166 | // avoid segfaults |
167 | if (!mother) return kFALSE; | |
168 | if (!pairDef) return kFALSE; | |
b9bbd271 | 169 | |
2dab9030 | 170 | Double_t mass = pairDef->GetMotherMass(); |
b9bbd271 | 171 | |
172 | switch (fType) | |
173 | { | |
b9bbd271 | 174 | case kTrack1P: |
2dab9030 | 175 | fValue = mother->GetDaughter(0)->P().Mag(); |
176 | break; | |
b9bbd271 | 177 | case kTrack2P: |
2dab9030 | 178 | fValue = mother->GetDaughter(1)->P().Mag(); |
179 | break; | |
b9bbd271 | 180 | case kTrack1Pt: |
2dab9030 | 181 | fValue = mother->GetDaughter(0)->P().Perp(); |
182 | break; | |
b9bbd271 | 183 | case kTrack2Pt: |
2dab9030 | 184 | fValue = mother->GetDaughter(1)->P().Perp(); |
185 | break; | |
b9bbd271 | 186 | case kPairInvMass: |
2dab9030 | 187 | fValue = mother->Sum().M(); |
188 | break; | |
b9bbd271 | 189 | case kPairInvMassMC: |
2dab9030 | 190 | fValue = mother->SumMC().M(); |
191 | break; | |
b9bbd271 | 192 | case kPairInvMassRes: |
2dab9030 | 193 | fValue = (mother->SumMC().M() - mother->Sum().M()) / mother->SumMC().M(); |
194 | break; | |
b9bbd271 | 195 | case kPairPt: |
2dab9030 | 196 | fValue = mother->Sum().Perp(); |
197 | break; | |
b9bbd271 | 198 | case kPairEta: |
2dab9030 | 199 | fValue = mother->Sum().Eta(); |
200 | break; | |
b9bbd271 | 201 | case kPairMt: |
202 | if (TMath::Abs(mass) < 1E-5) AliWarning(Form("Suspicious mass value specified: %f", mass)); | |
2dab9030 | 203 | fValue = (TMath::Sqrt(mother->Sum().Perp2() + mass*mass) - mass); |
204 | break; | |
b9bbd271 | 205 | case kPairY: |
206 | if (TMath::Abs(mass) < 1E-5) AliWarning(Form("Suspicious mass value specified: %f", mass)); | |
2dab9030 | 207 | mother->SetDefaultMass(mass); |
208 | fValue = mother->Ref().Rapidity(); | |
209 | break; | |
2e521c29 | 210 | case kPairCosThetaStar: |
211 | fValue = mother->CosThetaStar(); | |
212 | break; | |
cadcd9e0 | 213 | case kPairCosThetaStar1: |
2e521c29 | 214 | //fValue = TMath::Cos(mother->ThetaStar(kTRUE, kFALSE)); |
cadcd9e0 | 215 | break; |
216 | case kPairCosThetaStar2: | |
2e521c29 | 217 | //fValue = TMath::Cos(mother->ThetaStar(kFALSE, kFALSE)); |
cadcd9e0 | 218 | break; |
219 | case kPairCosThetaStarMC1: | |
2e521c29 | 220 | //fValue = TMath::Cos(mother->ThetaStar(kTRUE, kTRUE)); |
cadcd9e0 | 221 | break; |
222 | case kPairCosThetaStarMC2: | |
2e521c29 | 223 | //fValue = TMath::Cos(mother->ThetaStar(kFALSE, kTRUE)); |
cadcd9e0 | 224 | break; |
b9bbd271 | 225 | case kEventMult: |
2dab9030 | 226 | if (!event) fValue = 0.0; |
227 | fValue = (Double_t)event->GetMultiplicity(); | |
228 | break; | |
b9bbd271 | 229 | default: |
230 | AliWarning("Invalid value type"); | |
2dab9030 | 231 | return kFALSE; |
b9bbd271 | 232 | } |
2dab9030 | 233 | |
234 | return kTRUE; | |
b9bbd271 | 235 | } |