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a07ad8e0 | 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 | ||
27de2dfb | 16 | /* $Id$ */ |
17 | ||
a07ad8e0 | 18 | ///////////////////////////////////////////////////////////// |
19 | // | |
20 | // Class for cuts on AOD reconstructed Lc->pKpi | |
21 | // | |
22 | ///////////////////////////////////////////////////////////// | |
23 | ||
24 | #include <TDatabasePDG.h> | |
25 | #include <Riostream.h> | |
26 | ||
27 | #include "AliRDHFCutsLctoV0.h" | |
28 | #include "AliAODRecoCascadeHF.h" | |
29 | #include "AliAODTrack.h" | |
30 | #include "AliESDtrack.h" | |
31 | #include "AliAODv0.h" | |
32 | #include "AliESDv0.h" | |
33 | ||
34 | ClassImp(AliRDHFCutsLctoV0) | |
35 | ||
36 | //-------------------------------------------------------------------------- | |
37 | AliRDHFCutsLctoV0::AliRDHFCutsLctoV0(const char* name) : | |
38 | AliRDHFCuts(name) | |
39 | { | |
40 | // | |
41 | // Default Constructor | |
42 | // | |
43 | Int_t nvars=9; | |
44 | SetNVars(nvars); | |
45 | TString varNames[9]={"inv. mass if K0s [GeV]", | |
46 | "inv. mass if Lambda [GeV]", | |
47 | "inv. mass V0 if K0s [GeV]", | |
48 | "inv. mass V0 if Lambda [GeV]", | |
49 | "pT min bachelor track [GeV/c]", | |
50 | "pT min V0-positive track [GeV/c]", | |
51 | "pT min V0-negative track [GeV/c]", | |
52 | "dca cascade cut (cm)", | |
53 | "dca V0 cut (cm)"}; | |
54 | ||
55 | Bool_t isUpperCut[9]={kTRUE, | |
56 | kTRUE, | |
57 | kTRUE, | |
58 | kTRUE, | |
59 | kFALSE, | |
60 | kFALSE, | |
61 | kFALSE, | |
62 | kTRUE, | |
63 | kTRUE}; | |
64 | SetVarNames(nvars,varNames,isUpperCut); | |
65 | Bool_t forOpt[9]={kFALSE, | |
66 | kFALSE, | |
67 | kFALSE, | |
68 | kFALSE, | |
69 | kFALSE, | |
70 | kFALSE, | |
71 | kFALSE, | |
72 | kFALSE, | |
73 | kFALSE}; | |
74 | SetVarsForOpt(5,forOpt); | |
75 | Float_t limits[2]={0,999999999.}; | |
76 | SetPtBins(2,limits); | |
77 | } | |
78 | //-------------------------------------------------------------------------- | |
79 | AliRDHFCutsLctoV0::AliRDHFCutsLctoV0(const AliRDHFCutsLctoV0 &source) : | |
80 | AliRDHFCuts(source) | |
81 | { | |
82 | // | |
83 | // Copy constructor | |
84 | // | |
85 | ||
86 | } | |
87 | //-------------------------------------------------------------------------- | |
88 | AliRDHFCutsLctoV0 &AliRDHFCutsLctoV0::operator=(const AliRDHFCutsLctoV0 &source) | |
89 | { | |
90 | // | |
91 | // assignment operator | |
92 | // | |
93 | if(&source == this) return *this; | |
94 | ||
95 | AliRDHFCuts::operator=(source); | |
96 | ||
97 | return *this; | |
98 | } | |
99 | ||
100 | ||
101 | //--------------------------------------------------------------------------- | |
102 | void AliRDHFCutsLctoV0::GetCutVarsForOpt(AliAODRecoDecayHF *d,Float_t *vars,Int_t nvars,Int_t *pdgdaughters) { | |
103 | // | |
104 | // Fills in vars the values of the variables | |
105 | // | |
e654189e | 106 | if(pdgdaughters[0]==-9999) return; // dummy |
107 | ||
a07ad8e0 | 108 | |
109 | if(nvars!=fnVarsForOpt) { | |
110 | printf("AliRDHFCutsLctoV0::GetCutsVarsForOpt: wrong number of variables\n"); | |
111 | return; | |
112 | } | |
113 | ||
114 | AliAODRecoCascadeHF *dd = (AliAODRecoCascadeHF*)d; | |
115 | ||
116 | // Get the v0 and all daughter tracks | |
117 | AliAODTrack *bachelor_track = dd->GetBachelor(); | |
118 | AliAODv0 *v0 = dd->Getv0(); | |
119 | AliAODTrack *v0positive_track = dd->Getv0PositiveTrack(); | |
120 | AliAODTrack *v0negative_track = dd->Getv0NegativeTrack(); | |
121 | ||
122 | Int_t iter=-1; | |
123 | // cut on cascade mass, if k0s + p | |
124 | if(fVarsForOpt[0]){ | |
125 | iter++; | |
126 | vars[iter]=dd->InvMassLctoK0sP(); | |
127 | } | |
128 | // cut on cascade mass, if lambda + pi | |
129 | if(fVarsForOpt[1]){ | |
130 | iter++; | |
131 | vars[iter]=dd->InvMassLctoLambdaPi(); | |
132 | } | |
133 | ||
134 | // cut on v0 mass if k0s | |
135 | if(fVarsForOpt[2]){ | |
136 | iter++; | |
137 | vars[iter]=v0->MassK0Short(); | |
138 | } | |
139 | ||
140 | // cut on v0 mass if lambda | |
141 | // ----------------------------- pb with anti-lambda?? --------->>>>>>>> | |
142 | if(fVarsForOpt[3]){ | |
143 | iter++; | |
144 | vars[iter]=v0->MassLambda(); | |
145 | } | |
146 | ||
147 | // cut on v0-positive min pt | |
148 | if(fVarsForOpt[4]){ | |
149 | iter++; | |
150 | vars[iter]=v0positive_track->Pt(); | |
151 | } | |
152 | ||
153 | // cut on v0-negative min pt | |
154 | if(fVarsForOpt[5]){ | |
155 | iter++; | |
156 | vars[iter]=v0negative_track->Pt(); | |
157 | } | |
158 | ||
159 | // cut bachelor min pt | |
160 | if(fVarsForOpt[6]){ | |
161 | iter++; | |
162 | vars[iter]=bachelor_track->Pt(); | |
163 | } | |
164 | ||
165 | // cut on v0 dca | |
166 | if(fVarsForOpt[7]){ | |
167 | iter++; | |
168 | vars[iter]=v0->GetDCA(); | |
169 | } | |
170 | ||
171 | // cut on cascade dca | |
172 | if(fVarsForOpt[8]){ | |
173 | iter++; | |
174 | vars[iter]=dd->GetDCA(); | |
175 | } | |
176 | ||
177 | return; | |
178 | } | |
179 | //--------------------------------------------------------------------------- | |
180 | Int_t AliRDHFCutsLctoV0::IsSelected(TObject* obj,Int_t selectionLevel) { | |
181 | // | |
182 | // Apply selection | |
183 | // | |
184 | ||
185 | if(!fCutsRD){ | |
186 | cout<<"Cut matrice not inizialized. Exit..."<<endl; | |
187 | return 0; | |
188 | } | |
189 | //PrintAll(); | |
190 | AliAODRecoCascadeHF* d=(AliAODRecoCascadeHF*)obj; | |
191 | ||
192 | if(!d){ | |
193 | cout<<"AliAODRecoCascadeHF null"<<endl; | |
194 | return 0; | |
195 | } | |
196 | ||
ba27eecd | 197 | if(d->HasBadDaughters()) return 0; |
a07ad8e0 | 198 | |
199 | // selection on daughter tracks | |
200 | if(selectionLevel==AliRDHFCuts::kAll || | |
201 | selectionLevel==AliRDHFCuts::kTracks) { | |
202 | if(!AreDaughtersSelected(d)) return 0; | |
203 | } | |
204 | ||
205 | ||
206 | // Get the v0 and all daughter tracks | |
207 | AliAODTrack *bachelor_track = d->GetBachelor(); | |
208 | AliAODv0 *v0 = d->Getv0(); | |
209 | AliAODTrack *v0positive_track = d->Getv0PositiveTrack(); | |
210 | AliAODTrack *v0negative_track = d->Getv0NegativeTrack(); | |
211 | ||
212 | // // If reading ESDv0, return false | |
213 | // if ( !d->Getv0() || !d->Getv0PositiveTrack() || !d->Getv0NegativeTrack() ) | |
214 | // { AliInfo(Form("Not adapted for ESDv0s, return false...")); return false; } | |
215 | ||
216 | Int_t returnvalue=1; | |
217 | ||
218 | // selection on candidate | |
219 | if(selectionLevel==AliRDHFCuts::kAll || | |
220 | selectionLevel==AliRDHFCuts::kCandidate) { | |
221 | ||
222 | Double_t pt=d->Pt(); | |
223 | ||
224 | Int_t ptbin=PtBin(pt); | |
225 | ||
226 | Double_t mLck0sp,mLcLpi; | |
227 | Int_t okLck0sp=1,okLcLpi=1; | |
228 | ||
229 | Double_t mLcPDG = TDatabasePDG::Instance()->GetParticle(4122)->Mass(); | |
230 | Double_t mk0sPDG = TDatabasePDG::Instance()->GetParticle(310)->Mass(); | |
231 | Double_t mLPDG = TDatabasePDG::Instance()->GetParticle(3122)->Mass(); | |
232 | ||
233 | // k0s + p | |
234 | double mk0s = v0->MassK0Short(); | |
235 | mLck0sp = d->InvMassLctoK0sP(); | |
236 | ||
237 | // lambda + pi | |
238 | double mlambda = v0->MassLambda(); | |
239 | double malambda = v0->MassAntiLambda(); | |
240 | mLcLpi = d->InvMassLctoLambdaPi(); | |
241 | ||
242 | // cut on Lc mass | |
243 | // with k0s p hypothesis | |
244 | if(TMath::Abs(mLck0sp-mLcPDG)>fCutsRD[GetGlobalIndex(0,ptbin)]) { | |
245 | okLck0sp = 0; | |
246 | AliDebug(4,Form(" cascade mass is %2.2e and does not correspond to lambda_c into k0s+p cut",mLck0sp)); | |
247 | } | |
248 | // with Lambda pi hypothesis | |
249 | if(TMath::Abs(mLcLpi-mLcPDG)>fCutsRD[GetGlobalIndex(1,ptbin)]) { | |
250 | okLcLpi = 0; | |
251 | AliDebug(4,Form(" cascade mass is %2.2e and does not correspond to lambda_c into lambda+pi cut",mLcLpi)); | |
252 | } | |
253 | ||
254 | // cuts on the v0 mass | |
255 | if(TMath::Abs(mk0s-mk0sPDG)>fCutsRD[GetGlobalIndex(2,ptbin)]) { | |
256 | okLck0sp = 0; | |
257 | AliDebug(4,Form(" v0 mass is %2.2e and does not correspond to k0s cut",mk0s)); | |
258 | } | |
259 | if( TMath::Abs(mlambda-mLPDG)>fCutsRD[GetGlobalIndex(3,ptbin)] && | |
260 | TMath::Abs(malambda-mLPDG)>fCutsRD[GetGlobalIndex(3,ptbin)] ) { | |
261 | okLcLpi = 0; | |
262 | AliDebug(4,Form(" v0 mass is %2.2e and does not correspond to lambda cut",mlambda)); | |
263 | } | |
264 | ||
265 | if(!okLck0sp && !okLcLpi) return 0; | |
266 | ||
267 | // cuts on the minimum pt of the tracks | |
268 | if(TMath::Abs(bachelor_track->Pt()) < fCutsRD[GetGlobalIndex(4,ptbin)]) { | |
269 | AliDebug(4,Form(" bachelor track Pt=%2.2e > %2.2e",bachelor_track->Pt(),fCutsRD[GetGlobalIndex(4,ptbin)])); | |
270 | return 0; | |
271 | } | |
272 | if(TMath::Abs(v0positive_track->Pt()) < fCutsRD[GetGlobalIndex(5,ptbin)]) { | |
273 | AliDebug(4,Form(" v0 positive track Pt=%2.2e > %2.2e",v0positive_track->Pt(),fCutsRD[GetGlobalIndex(5,ptbin)])); | |
274 | return 0; | |
275 | } | |
276 | if(TMath::Abs(v0negative_track->Pt()) < fCutsRD[GetGlobalIndex(6,ptbin)]) { | |
277 | AliDebug(4,Form(" v0 negative track Pt=%2.2e > %2.2e",v0negative_track->Pt(),fCutsRD[GetGlobalIndex(6,ptbin)])); | |
278 | return 0; | |
279 | } | |
280 | ||
281 | // cut on the v0 dca | |
282 | if(TMath::Abs(v0->DcaV0Daughters()) > fCutsRD[GetGlobalIndex(7,ptbin)]) { | |
283 | AliDebug(4,Form(" v0 daughters DCA = %2.2e > %2.2e",v0->DcaV0Daughters(),fCutsRD[GetGlobalIndex(7,ptbin)])); | |
284 | return 0; | |
285 | } | |
286 | ||
287 | // cut on the cascade dca | |
288 | if( TMath::Abs(d->GetDCA(0))>fCutsRD[GetGlobalIndex(8,ptbin)] || | |
289 | TMath::Abs(v0->DcaPosToPrimVertex())>fCutsRD[GetGlobalIndex(8,ptbin)] || | |
290 | TMath::Abs(v0->DcaNegToPrimVertex())>fCutsRD[GetGlobalIndex(8,ptbin)] ) { | |
291 | AliDebug(4,Form(" cascade tracks DCA at primary vertex don't pass the cut")); | |
292 | return 0; | |
293 | } | |
294 | ||
295 | if(okLck0sp) returnvalue=1; //cuts passed as Lc -> k0s + p | |
296 | if(okLcLpi) returnvalue=2; //cuts passed as Lc-> lambda + pi | |
297 | if(okLck0sp && okLcLpi) returnvalue=3; //cuts passed as both Lc -> k0s + p; Lc-> lambda + pi | |
298 | ||
299 | } | |
300 | ||
301 | return returnvalue; | |
302 | } | |
303 | //--------------------------------------------------------------------------- |