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e3d40058 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-2010, 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 | ///////////////////////////////////////////////////////////// | |
17 | // | |
18 | // Class for cuts on AOD reconstructed Lc->pKpi | |
19 | // | |
20 | // Author: A.Dainese, andrea.dainese@pd.infn.it | |
21 | ///////////////////////////////////////////////////////////// | |
22 | ||
23 | #include <TDatabasePDG.h> | |
24 | #include <Riostream.h> | |
25 | ||
26 | #include "AliRDHFCutsLctopKpi.h" | |
27 | #include "AliAODRecoDecayHF3Prong.h" | |
28 | #include "AliAODTrack.h" | |
29 | #include "AliESDtrack.h" | |
30 | ||
31 | ClassImp(AliRDHFCutsLctopKpi) | |
32 | ||
33 | //-------------------------------------------------------------------------- | |
a9b75906 | 34 | AliRDHFCutsLctopKpi::AliRDHFCutsLctopKpi(const char* name) : |
35 | AliRDHFCuts(name) | |
e3d40058 | 36 | { |
37 | // | |
38 | // Default Constructor | |
39 | // | |
40 | Int_t nvars=12; | |
41 | SetNVars(nvars); | |
42 | TString varNames[12]={"inv. mass [GeV]", | |
43 | "pTP [GeV/c]", | |
44 | "pTPi [GeV/c]", | |
45 | "d0P [cm] lower limit!", | |
46 | "d0Pi [cm] lower limit!", | |
47 | "dist12 (cm)", | |
48 | "sigmavert (cm)", | |
49 | "dist prim-sec (cm)", | |
50 | "pM=Max{pT1,pT2,pT3} (GeV/c)", | |
51 | "cosThetaPoint", | |
52 | "Sum d0^2 (cm^2)", | |
53 | "dca cut (cm)"}; | |
54 | Bool_t isUpperCut[12]={kTRUE, | |
55 | kFALSE, | |
56 | kFALSE, | |
57 | kFALSE, | |
58 | kFALSE, | |
59 | kFALSE, | |
60 | kTRUE, | |
61 | kFALSE, | |
62 | kFALSE, | |
63 | kFALSE, | |
64 | kFALSE, | |
65 | kTRUE}; | |
66 | SetVarNames(nvars,varNames,isUpperCut); | |
4755453e | 67 | Bool_t forOpt[12]={kFALSE, |
e3d40058 | 68 | kFALSE, |
69 | kFALSE, | |
70 | kFALSE, | |
71 | kFALSE, | |
72 | kFALSE, | |
73 | kTRUE, | |
74 | kTRUE, | |
75 | kTRUE, | |
76 | kTRUE, | |
77 | kTRUE, | |
78 | kFALSE}; | |
4755453e | 79 | SetVarsForOpt(5,forOpt); |
e3d40058 | 80 | Float_t limits[2]={0,999999999.}; |
81 | SetPtBins(2,limits); | |
82 | } | |
83 | //-------------------------------------------------------------------------- | |
84 | AliRDHFCutsLctopKpi::AliRDHFCutsLctopKpi(const AliRDHFCutsLctopKpi &source) : | |
85 | AliRDHFCuts(source) | |
86 | { | |
87 | // | |
88 | // Copy constructor | |
89 | // | |
90 | ||
91 | } | |
92 | //-------------------------------------------------------------------------- | |
93 | AliRDHFCutsLctopKpi &AliRDHFCutsLctopKpi::operator=(const AliRDHFCutsLctopKpi &source) | |
94 | { | |
95 | // | |
96 | // assignment operator | |
97 | // | |
98 | if(&source == this) return *this; | |
99 | ||
100 | AliRDHFCuts::operator=(source); | |
101 | ||
102 | return *this; | |
103 | } | |
104 | ||
105 | ||
106 | //--------------------------------------------------------------------------- | |
107 | void AliRDHFCutsLctopKpi::GetCutVarsForOpt(AliAODRecoDecayHF *d,Float_t *vars,Int_t nvars,Int_t *pdgdaughters) { | |
108 | // | |
109 | // Fills in vars the values of the variables | |
110 | // | |
111 | ||
112 | if(nvars!=fnVarsForOpt) { | |
113 | printf("AliRDHFCutsLctopKpi::GetCutsVarsForOpt: wrong number of variables\n"); | |
114 | return; | |
115 | } | |
116 | ||
117 | AliAODRecoDecayHF3Prong *dd = (AliAODRecoDecayHF3Prong*)d; | |
118 | ||
119 | Int_t iter=-1; | |
120 | if(fVarsForOpt[0]){ | |
121 | iter++; | |
122 | vars[iter]=dd->InvMassLcpKpi(); | |
123 | } | |
124 | if(fVarsForOpt[1]){ | |
125 | iter++; | |
126 | for(Int_t iprong=0;iprong<3;iprong++){ | |
127 | if(TMath::Abs(pdgdaughters[iprong])==2212) { | |
128 | vars[iter]=dd->PtProng(iprong); | |
129 | } | |
130 | } | |
131 | } | |
132 | if(fVarsForOpt[2]){ | |
133 | iter++; | |
134 | for(Int_t iprong=0;iprong<3;iprong++){ | |
135 | if(TMath::Abs(pdgdaughters[iprong])==211) { | |
136 | vars[iter]=dd->PtProng(iprong); | |
137 | } | |
138 | } | |
139 | } | |
140 | if(fVarsForOpt[3]){ | |
141 | iter++; | |
142 | for(Int_t iprong=0;iprong<3;iprong++){ | |
143 | if(TMath::Abs(pdgdaughters[iprong])==2212) { | |
144 | vars[iter]=dd->Getd0Prong(iprong); | |
145 | } | |
146 | } | |
147 | } | |
148 | if(fVarsForOpt[4]){ | |
149 | iter++; | |
150 | for(Int_t iprong=0;iprong<3;iprong++){ | |
151 | if(TMath::Abs(pdgdaughters[iprong])==211) { | |
152 | vars[iter]=dd->Getd0Prong(iprong); | |
153 | } | |
154 | } | |
155 | } | |
156 | if(fVarsForOpt[5]){ | |
157 | iter++; | |
158 | vars[iter]=dd->GetDist12toPrim(); | |
159 | } | |
160 | if(fVarsForOpt[6]){ | |
161 | iter++; | |
162 | vars[iter]=dd->GetSigmaVert(); | |
163 | } | |
164 | if(fVarsForOpt[7]){ | |
165 | iter++; | |
166 | vars[iter] = dd->DecayLength(); | |
167 | } | |
168 | if(fVarsForOpt[8]){ | |
169 | iter++; | |
170 | Float_t ptmax=0; | |
171 | for(Int_t i=0;i<3;i++){ | |
172 | if(dd->PtProng(i)>ptmax)ptmax=dd->PtProng(i); | |
173 | } | |
174 | vars[iter]=ptmax; | |
175 | } | |
176 | if(fVarsForOpt[9]){ | |
177 | iter++; | |
178 | vars[iter]=dd->CosPointingAngle(); | |
179 | } | |
180 | if(fVarsForOpt[10]){ | |
181 | iter++; | |
182 | vars[iter]=dd->Getd0Prong(0)*dd->Getd0Prong(0)+dd->Getd0Prong(1)*dd->Getd0Prong(1)+dd->Getd0Prong(2)*dd->Getd0Prong(2); | |
183 | } | |
184 | if(fVarsForOpt[11]){ | |
185 | iter++; | |
186 | vars[iter]=dd->GetDCA(); | |
187 | } | |
188 | ||
189 | return; | |
190 | } | |
191 | //--------------------------------------------------------------------------- | |
192 | Int_t AliRDHFCutsLctopKpi::IsSelected(TObject* obj,Int_t selectionLevel) { | |
193 | // | |
194 | // Apply selection | |
195 | // | |
196 | ||
197 | if(!fCutsRD){ | |
198 | cout<<"Cut matrice not inizialized. Exit..."<<endl; | |
199 | return 0; | |
200 | } | |
201 | //PrintAll(); | |
202 | AliAODRecoDecayHF3Prong* d=(AliAODRecoDecayHF3Prong*)obj; | |
203 | ||
204 | if(!d){ | |
205 | cout<<"AliAODRecoDecayHF3Prong null"<<endl; | |
206 | return 0; | |
207 | } | |
208 | ||
209 | ||
210 | // selection on daughter tracks | |
211 | if(selectionLevel==AliRDHFCuts::kAll || | |
212 | selectionLevel==AliRDHFCuts::kTracks) { | |
213 | if(!AreDaughtersSelected(d)) return 0; | |
214 | } | |
215 | ||
216 | ||
217 | Int_t returnvalue=1; | |
218 | ||
219 | // selection on candidate | |
220 | if(selectionLevel==AliRDHFCuts::kAll || | |
221 | selectionLevel==AliRDHFCuts::kCandidate) { | |
222 | ||
223 | Double_t pt=d->Pt(); | |
224 | ||
225 | Int_t ptbin=PtBin(pt); | |
226 | ||
227 | Double_t mLcpKpi,mLcpiKp; | |
228 | Int_t okLcpKpi=1,okLcpiKp=1; | |
229 | ||
230 | Double_t mLcPDG = TDatabasePDG::Instance()->GetParticle(4122)->Mass(); | |
231 | ||
232 | mLcpKpi=d->InvMassLcpKpi(); | |
233 | mLcpiKp=d->InvMassLcpiKp(); | |
234 | ||
235 | if(TMath::Abs(mLcpKpi-mLcPDG)>fCutsRD[GetGlobalIndex(0,ptbin)]) okLcpKpi = 0; | |
236 | if(TMath::Abs(mLcpiKp-mLcPDG)>fCutsRD[GetGlobalIndex(0,ptbin)]) okLcpiKp = 0; | |
237 | if(!okLcpKpi && !okLcpiKp) return 0; | |
238 | ||
239 | if(TMath::Abs(d->PtProng(1)) < fCutsRD[GetGlobalIndex(1,ptbin)] || TMath::Abs(d->Getd0Prong(1))<fCutsRD[GetGlobalIndex(3,ptbin)]) return 0;//Kaon | |
240 | if(TMath::Abs(d->PtProng(0)) < fCutsRD[GetGlobalIndex(2,ptbin)] || TMath::Abs(d->Getd0Prong(0))<fCutsRD[GetGlobalIndex(4,ptbin)]) return 0;//Proton | |
241 | if(TMath::Abs(d->PtProng(2)) < fCutsRD[GetGlobalIndex(2,ptbin)] || TMath::Abs(d->Getd0Prong(2))<fCutsRD[GetGlobalIndex(4,ptbin)]) return 0;//Pion | |
242 | ||
243 | ||
244 | ||
245 | //2track cuts | |
246 | if(d->GetDist12toPrim()<fCutsRD[GetGlobalIndex(5,ptbin)]|| d->GetDist23toPrim()<fCutsRD[GetGlobalIndex(5,ptbin)]) return 0; | |
247 | if(d->Getd0Prong(0)*d->Getd0Prong(1)<0. && d->Getd0Prong(2)*d->Getd0Prong(1)<0.) return 0; | |
248 | ||
249 | //sec vert | |
250 | if(d->GetSigmaVert()>fCutsRD[GetGlobalIndex(6,ptbin)]) return 0; | |
251 | ||
252 | if(d->DecayLength()<fCutsRD[GetGlobalIndex(7,ptbin)]) return 0; | |
253 | ||
254 | if(TMath::Abs(d->PtProng(0))<fCutsRD[GetGlobalIndex(8,ptbin)] && TMath::Abs(d->PtProng(1))<fCutsRD[GetGlobalIndex(8,ptbin)] && TMath::Abs(d->PtProng(2))<fCutsRD[GetGlobalIndex(8,ptbin)]) return 0; | |
255 | if(d->CosPointingAngle()< fCutsRD[GetGlobalIndex(9,ptbin)]) return 0; | |
256 | Double_t sum2=d->Getd0Prong(0)*d->Getd0Prong(0)+d->Getd0Prong(1)*d->Getd0Prong(1)+d->Getd0Prong(2)*d->Getd0Prong(2); | |
257 | if(sum2<fCutsRD[GetGlobalIndex(10,ptbin)]) return 0; | |
258 | ||
259 | //DCA | |
260 | for(Int_t i=0;i<3;i++) if(d->GetDCA(i)>fCutsRD[GetGlobalIndex(11,ptbin)]) return 0; | |
261 | ||
262 | ||
263 | if(okLcpKpi) returnvalue=1; //cuts passed as Lc->pKpi | |
264 | if(okLcpiKp) returnvalue=2; //cuts passed as Lc->piKp | |
265 | if(okLcpKpi && okLcpiKp) returnvalue=3; //cuts passed as both pKpi and piKp | |
266 | ||
267 | } | |
268 | ||
269 | return returnvalue; | |
270 | } | |
271 | //--------------------------------------------------------------------------- |