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733304f0 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, 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 | ||
88cb7938 | 16 | /* $Id$ */ |
733304f0 | 17 | |
b8def77a | 18 | #include "AliTPCPid.h" |
19 | #include "TMath.h" | |
ad350af6 | 20 | //#include <TVector.h> |
21 | #include <TF1.h> | |
22 | #include <TClonesArray.h> | |
b8def77a | 23 | //#include "AliITSIOTrack.h" |
c300c64c | 24 | #include "AliKalmanTrack.h" |
16a5b018 | 25 | #include "Riostream.h" |
b8def77a | 26 | ClassImp(AliTPCPid) |
27 | // Correction 13.01.2003 Z.S.,Dubna | |
28 | // 22.01.2003 | |
29 | //------------------------------------------------------------ | |
ad350af6 | 30 | // pid class by B. Batyunya |
31 | // stupid corrections by M.K. | |
32 | // | |
179c6296 | 33 | //_______________________________________________________ |
ad350af6 | 34 | //________________________________________________________ |
179c6296 | 35 | AliTPCPid::AliTPCPid( const AliTPCPid& r):TObject(r), |
36 | fCutKa(0), | |
37 | fCutPr(0), | |
38 | fCutKaTune(0.), | |
39 | fCutPrTune(0.), | |
40 | fSigmin(0.), | |
41 | fSilent(0), | |
42 | fmxtrs(0), | |
43 | trs(0), | |
44 | fqtot(0.), | |
45 | fWpi(0.), | |
46 | fWk(0.), | |
47 | fWp(0.), | |
48 | fRpik(0.), | |
49 | fRppi(0.), | |
50 | fRpka(0.), | |
51 | fRp(0.), | |
52 | fPcode(0) | |
b8def77a | 53 | { |
ad350af6 | 54 | // dummy copy constructor |
55 | } | |
56 | Float_t AliTPCPid::Qcorr(Float_t xc) | |
57 | { | |
58 | // | |
59 | // charge correction | |
60 | // | |
b8def77a | 61 | assert(0); |
62 | Float_t fcorr; | |
63 | fcorr=( 0.766 +0.9692*xc -1.267*xc*xc )*( 1.-TMath::Exp(-xc*64.75) ); | |
64 | if(fcorr<=0.1)fcorr=0.1; | |
ad350af6 | 65 | return fqtot/fcorr; |
b8def77a | 66 | } |
179c6296 | 67 | //__________________________________________________________ |
68 | AliTPCPid & AliTPCPid::operator =(const AliTPCPid & param) | |
69 | { | |
70 | // | |
71 | // assignment operator - dummy | |
72 | // | |
73 | fSigmin=param.fSigmin; | |
74 | return (*this); | |
75 | } | |
b8def77a | 76 | //----------------------------------------------------------- |
ad350af6 | 77 | Float_t AliTPCPid::Qtrm(Int_t track) const |
b8def77a | 78 | { |
ad350af6 | 79 | // |
80 | // dummy comment (Boris!!!) | |
81 | // | |
b8def77a | 82 | TVector q(*( this->GetVec(track) )); |
83 | Int_t ml=(Int_t)q(0); | |
84 | if(ml<1)return 0.; | |
85 | if(ml>6)ml=6; | |
86 | float vf[6]; | |
87 | Int_t nl=0; for(Int_t i=0;i<ml;i++){if(q(i)>fSigmin){vf[nl]=q(i+1);nl++;}} | |
88 | if(nl==0)return 0.; | |
89 | switch(nl){ | |
90 | case 1:q(6)=q(1); break; | |
91 | case 2:q(6)=(q(1)+q(2))/2.; break; | |
92 | default: | |
93 | for(int fi=0;fi<2;fi++){ | |
94 | Int_t swap; | |
95 | do{ swap=0; float qmin=vf[fi]; | |
96 | for(int j=fi+1;j<nl;j++) | |
97 | if(qmin>vf[j]){qmin=vf[j];vf[j]=vf[fi];vf[fi]=qmin;swap=1;}; | |
98 | }while(swap==1); | |
99 | } | |
100 | q(6)= (vf[0]+vf[1])/2.; | |
101 | break; | |
102 | } | |
103 | for(Int_t i=0;i<nl;i++){q(i+1)=vf[i];} this->SetVec(track,q); | |
104 | return (q(6)); | |
ad350af6 | 105 | }// --- End AliTPCPid::Qtrm --- |
b8def77a | 106 | |
ad350af6 | 107 | Float_t AliTPCPid::Qtrm(Float_t qarr[6],Int_t narr) |
b8def77a | 108 | { |
109 | //.................. | |
110 | Float_t q[6],qm,qmin; | |
111 | Int_t nl,ml; | |
112 | if(narr>0&&narr<7){ml=narr;}else{return 0;}; | |
113 | nl=0; for(Int_t i=0;i<ml;i++){if(qarr[i]>fSigmin){q[nl]=qarr[i];nl++;}} | |
114 | if(nl==0)return 0.; | |
115 | switch(nl){ | |
116 | case 1:qm=q[0]; break; | |
117 | case 2:qm=(q[0]+q[1])/2.; break; | |
118 | default: | |
119 | Int_t swap; | |
120 | for(int fi=0;fi<2;fi++){ | |
121 | do{ swap=0; qmin=q[fi]; | |
122 | for(int j=fi+1;j<nl;j++) | |
123 | if(qmin>q[j]){qmin=q[j];q[j]=q[fi];q[fi]=qmin;swap=1;}; | |
124 | }while(swap==1); | |
125 | } | |
126 | qm= (q[0]+q[1])/2.; | |
127 | break; | |
128 | } | |
129 | return qm; | |
ad350af6 | 130 | }// --- End AliTPCPid::Qtrm --- |
b8def77a | 131 | |
ad350af6 | 132 | Int_t AliTPCPid::Wpik(Int_t nc,Float_t q) |
b8def77a | 133 | { |
ad350af6 | 134 | // |
135 | // pi-k | |
136 | // | |
b8def77a | 137 | Float_t qmpi,qmk,sigpi,sigk,dpi,dk,ppi,pk; |
138 | Float_t appi,apk; | |
ad350af6 | 139 | qmpi =fcut[nc][1]; |
140 | sigpi=fcut[nc][2]; | |
141 | qmk =fcut[nc][3]; | |
142 | sigk =fcut[nc][4]; | |
143 | appi = faprob[0][nc-5]; | |
144 | apk = faprob[1][nc-5]; | |
b8def77a | 145 | if( !fSilent ){ |
146 | cout<<"qmpi,sigpi,qmk,sigk="<<qmpi<<" "<<sigpi<<" "<<qmk<<" "<<sigk<<endl; | |
147 | cout<<"appi,apk="<<appi<<","<<apk<<endl; | |
148 | } | |
149 | Float_t dqpi=(q-qmpi)/sigpi; | |
150 | Float_t dqk =(q-qmk )/sigk; | |
9dec0e81 | 151 | dpi =TMath::Abs(dqpi); |
152 | dk =TMath::Abs(dqk); | |
b8def77a | 153 | Double_t dn=appi*TMath::Gaus(q,qmpi,sigpi)+apk*TMath::Gaus(q,qmk,sigk); |
154 | if(dn>0.){ | |
155 | ppi=appi*TMath::Gaus(q,qmpi,sigpi)/dn; | |
156 | pk = apk*TMath::Gaus(q,qmk, sigk )/dn; | |
ad350af6 | 157 | }else{fWpi=1;return Pion();} |
b8def77a | 158 | Float_t rpik=ppi/(pk+0.0000001); |
159 | if( !fSilent ) | |
ad350af6 | 160 | cout<<"q,dqpi,dqk, Wpik: ppi,pk,rpik=" |
b8def77a | 161 | <<q<<" "<<dqpi<<" "<<dqk<<" "<<ppi<<" "<<pk<<" "<<rpik<<endl; |
162 | ||
163 | fWp=0.; fWpi=ppi; fWk=pk; | |
ad350af6 | 164 | if( pk>ppi){return Kaon();}else{return Pion();} |
b8def77a | 165 | } |
166 | //----------------------------------------------------------- | |
ad350af6 | 167 | Int_t AliTPCPid::Wpikp(Int_t nc,Float_t q) |
b8def77a | 168 | { |
ad350af6 | 169 | // |
170 | // pi-k-p | |
171 | // | |
b8def77a | 172 | Float_t qmpi,qmk,qmp,sigpi,sigk,sigp,ppi,pk,pp; |
173 | Float_t appi,apk,app; | |
174 | ||
ad350af6 | 175 | qmpi =fcut[nc][1]; |
176 | sigpi=fcut[nc][2]; | |
177 | qmk =fcut[nc][3]; | |
178 | sigk =fcut[nc][4]; | |
179 | qmp =fcut[nc][5]; | |
180 | sigp =fcut[nc][6]; | |
b8def77a | 181 | |
182 | //appi = apk = app = 1.; | |
ad350af6 | 183 | appi = faprob[0][nc-5]; |
184 | apk = faprob[1][nc-5]; | |
185 | app = faprob[2][nc-5]; | |
b8def77a | 186 | |
187 | Double_t dn= appi*TMath::Gaus(q,qmpi,sigpi) | |
188 | +apk*TMath::Gaus(q,qmk,sigk)+app*TMath::Gaus(q,qmp,sigp); | |
189 | if(dn>0.){ | |
190 | ppi=appi*TMath::Gaus(q,qmpi,sigpi)/dn; | |
191 | pk = apk*TMath::Gaus(q,qmk, sigk )/dn; | |
192 | pp = app*TMath::Gaus(q,qmp, sigp )/dn; | |
193 | } | |
ad350af6 | 194 | else{fWpi=1;return Pion();} |
b8def77a | 195 | fWp=pp; fWpi=ppi; fWk=pk; |
196 | if( !fSilent ){ | |
ad350af6 | 197 | cout<<" Wpikp: mid,sig pi,k,p="<<qmpi<<" "<<sigpi<<"; "<<qmk<<" "<<sigk<<"; " |
b8def77a | 198 | <<qmp<<" "<<sigp<<"; "<<endl; |
ad350af6 | 199 | cout<<" faprob: "<<appi<<" "<<apk<<" "<<app<<endl; |
b8def77a | 200 | cout<<" ppi,pk,pp="<<ppi<<" "<<pk<<" "<<pp<<endl; |
201 | } | |
ad350af6 | 202 | if( ppi>pk&&ppi>pp ) { return Pion(); } |
203 | if(pk>pp){return Kaon();}else{return Proton();} | |
b8def77a | 204 | } |
205 | //----------------------------------------------------------- | |
ad350af6 | 206 | Int_t AliTPCPid::GetPcode(TClonesArray* /*rps*/,Float_t /*pm*/) const |
b8def77a | 207 | { |
ad350af6 | 208 | // |
209 | // dummy ??? | |
210 | // | |
b8def77a | 211 | return 0; |
212 | } | |
213 | //----------------------------------------------------------- | |
214 | Int_t AliTPCPid::GetPcode(AliTPCtrack *track) | |
215 | { | |
ad350af6 | 216 | // |
217 | // get particle code | |
218 | // | |
b8def77a | 219 | Double_t xk,par[5]; track->GetExternalParameters(xk,par); |
220 | Float_t phi=TMath::ASin(par[2]) + track->GetAlpha(); | |
221 | if (phi<-TMath::Pi()) phi+=2*TMath::Pi(); | |
222 | if (phi>=TMath::Pi()) phi-=2*TMath::Pi(); | |
223 | Float_t lam=TMath::ATan(par[3]); | |
ad350af6 | 224 | Float_t pt1=TMath::Abs(par[4]); |
225 | Float_t mom=1./(pt1*TMath::Cos(lam)); | |
b8def77a | 226 | Float_t dedx=track->GetdEdx(); |
227 | Int_t pcode=GetPcode(dedx/40.,mom); | |
228 | cout<<"TPCtrack dedx,mom,pcode="<<dedx<<","<<mom<<","<<pcode<<endl; | |
229 | return pcode?pcode:211; | |
230 | } | |
c84a5e9e | 231 | /* |
b8def77a | 232 | //----------------------------------------------------------- |
c300c64c | 233 | Int_t AliTPCPid::GetPcode(AliKalmanTrack *track) |
b8def77a | 234 | { |
ad350af6 | 235 | // |
236 | // get particle code | |
237 | // | |
b8def77a | 238 | if(track==0)return 0; |
239 | // track->Propagate(track->GetAlpha(),3.,0.1/65.19*1.848,0.1*1.848); | |
240 | track->PropagateTo(3.,0.0028,65.19); | |
241 | track->PropagateToVertex(); | |
242 | Double_t xk,par[5]; track->GetExternalParameters(xk,par); | |
243 | Float_t lam=TMath::ATan(par[3]); | |
ad350af6 | 244 | Float_t pt1=TMath::Abs(par[4]); |
b8def77a | 245 | Float_t mom=0.; |
ad350af6 | 246 | if( (pt1*TMath::Cos(lam))!=0. ){ mom=1./(pt1*TMath::Cos(lam)); }else{mom=0.;}; |
bbc6cd2c | 247 | Float_t dedx=track->GetPIDsignal(); |
ad350af6 | 248 | cout<<"lam,pt1,mom,dedx="<<lam<<","<<pt1<<","<<mom<<","<<dedx<<endl; |
b8def77a | 249 | Int_t pcode=GetPcode(dedx,mom); |
250 | cout<<"ITS V2 dedx,mom,pcode="<<dedx<<","<<mom<<","<<pcode<<endl; | |
251 | return pcode?pcode:211; | |
252 | } | |
c84a5e9e | 253 | */ |
b8def77a | 254 | //----------------------------------------------------------- |
255 | Int_t AliTPCPid::GetPcode(Float_t q,Float_t pm) | |
256 | { | |
ad350af6 | 257 | // |
258 | // get particle code | |
259 | // | |
b8def77a | 260 | fWpi=fWk=fWp=0.; fPcode=0; |
261 | //1)---------------------- 0-120 MeV/c -------------- | |
ad350af6 | 262 | if ( pm<=fcut[1][0] ) |
263 | { fWpi=1.; return Pion(); } | |
b8def77a | 264 | //2)----------------------120-200 Mev/c ( 29.7.2002 ) ------------- |
ad350af6 | 265 | if ( pm<=fcut[2][0] ) |
266 | { if( q<fCutKa->Eval(pm) ){fWpi=1.; return Pion(); } | |
267 | else {fWk =1.; return Kaon();} } | |
b8def77a | 268 | //3)----------------------200-400 Mev/c ------------- |
ad350af6 | 269 | if ( pm<=fcut[3][0] ) |
b8def77a | 270 | if( q<fCutKa->Eval(pm) ) |
ad350af6 | 271 | { fWpi=1.;return Pion(); } |
b8def77a | 272 | else |
273 | { if ( q<=fCutPr->Eval(pm) ) | |
ad350af6 | 274 | {fWk=1.;return Kaon();} |
275 | else {fWp=1.;return Proton();} | |
b8def77a | 276 | } |
277 | //4)----------------------400-450 Mev/c ------------- | |
ad350af6 | 278 | if ( pm<=fcut[4][0] ) |
b8def77a | 279 | if( q<fCutKaTune*fCutKa->Eval(pm) ) |
ad350af6 | 280 | { fWpi=1.;return Pion(); } |
b8def77a | 281 | else |
282 | { if( q<fCutPr->Eval(pm) ) | |
ad350af6 | 283 | {fWk=1.;return Kaon();} else {fWp=1.;return Proton(); } |
b8def77a | 284 | } |
285 | //5)----------------------450-500 Mev/c ------------- | |
ad350af6 | 286 | if ( pm<=fcut[5][0] ) |
b8def77a | 287 | if ( q>fCutPr->Eval(pm) ) |
ad350af6 | 288 | {fWp=1.;return Proton();} else {return Wpik(5,q);}; |
b8def77a | 289 | //6)----------------------500-550 Mev/c ------------- |
ad350af6 | 290 | if ( pm<=fcut[6][0] ) |
b8def77a | 291 | if ( q>fCutPr->Eval(pm) ) |
ad350af6 | 292 | {fWp=1.;return Proton();} else {return Wpik(6,q);}; |
b8def77a | 293 | //7)----------------------550-600 Mev/c ------------- |
ad350af6 | 294 | if ( pm<=fcut[7][0] ) |
b8def77a | 295 | if ( q>fCutPr->Eval(pm) ) |
ad350af6 | 296 | {fWp=1.;return Proton();} else {return Wpik(7,q);}; |
b8def77a | 297 | //8)----------------------600-650 Mev/c ------------- |
ad350af6 | 298 | if ( pm<=fcut[8][0] ) |
299 | if ( q>fCutPrTune*fCutPr->Eval(pm) ){fWp=1.;return Proton();} | |
300 | else {return Wpik(8,q);}; | |
b8def77a | 301 | //9)----------------------650-730 Mev/c ------------- |
ad350af6 | 302 | if ( pm<=fcut[9][0] ) |
303 | if ( q>fCutPrTune*fCutPr->Eval(pm) ){fWp=1.;return Proton();} | |
304 | else {return Wpik(9,q);}; | |
b8def77a | 305 | //10)----------------------730-830 Mev/c ------------- |
ad350af6 | 306 | if( pm<=fcut[10][0] ) |
307 | if ( q>fCutPrTune*fCutPr->Eval(pm) ){fWp=1.;return Proton();} | |
308 | else {return Wpik(10,q);}; | |
b8def77a | 309 | //11)----------------------830-930 Mev/c ------------- |
ad350af6 | 310 | if( pm<=fcut[11][0] ){ return Wpikp(11,q); } |
b8def77a | 311 | //12)----------------------930-1030 Mev/c ------------- |
ad350af6 | 312 | if( pm<=fcut[12][0] ) |
313 | { return Wpikp(12,q); }; | |
b8def77a | 314 | |
315 | return fPcode; | |
316 | } | |
317 | //----------------------------------------------------------- | |
318 | void AliTPCPid::SetCut(Int_t n,Float_t pm,Float_t pilo,Float_t pihi, | |
319 | Float_t klo,Float_t khi,Float_t plo,Float_t phi) | |
320 | { | |
ad350af6 | 321 | // |
322 | // set cuts | |
323 | // | |
324 | fcut[n][0]=pm; | |
325 | fcut[n][1]=pilo; | |
326 | fcut[n][2]=pihi; | |
327 | fcut[n][3]=klo; | |
328 | fcut[n][4]=khi; | |
329 | fcut[n][5]=plo; | |
330 | fcut[n][6]=phi; | |
b8def77a | 331 | return ; |
332 | } | |
333 | //------------------------------------------------------------ | |
ad350af6 | 334 | void AliTPCPid::SetVec(Int_t ntrack,TVector info) const |
b8def77a | 335 | { |
ad350af6 | 336 | // |
337 | // new track vector | |
338 | // | |
b8def77a | 339 | TClonesArray& arr=*trs; |
340 | new( arr[ntrack] ) TVector(info); | |
341 | } | |
342 | //----------------------------------------------------------- | |
ad350af6 | 343 | TVector* AliTPCPid::GetVec(Int_t ntrack) const |
b8def77a | 344 | { |
ad350af6 | 345 | // |
346 | // get track vector | |
347 | // | |
b8def77a | 348 | TClonesArray& arr=*trs; |
349 | return (TVector*)arr[ntrack]; | |
350 | } | |
351 | //----------------------------------------------------------- | |
352 | void AliTPCPid::SetEdep(Int_t track,Float_t Edep) | |
353 | { | |
ad350af6 | 354 | // |
355 | // energy deposit | |
356 | // | |
b8def77a | 357 | TVector xx(0,11); |
358 | if( ((TVector*)trs->At(track))->IsValid() ) | |
359 | {TVector yy( *((TVector*)trs->At(track)) );xx=yy; } | |
360 | Int_t j=(Int_t)xx(0); if(j>4)return; | |
361 | xx(++j)=Edep;xx(0)=j; | |
362 | TClonesArray &arr=*trs; | |
363 | new(arr[track])TVector(xx); | |
364 | } | |
365 | //----------------------------------------------------------- | |
366 | void AliTPCPid::SetPmom(Int_t track,Float_t Pmom) | |
367 | { | |
ad350af6 | 368 | // |
369 | // set part. momentum | |
370 | // | |
b8def77a | 371 | TVector xx(0,11); |
372 | if( ((TVector*)trs->At(track))->IsValid() ) | |
373 | {TVector yy( *((TVector*)trs->At(track)) );xx=yy; } | |
374 | xx(10)=Pmom; | |
375 | TClonesArray &arr=*trs; | |
376 | new(arr[track])TVector(xx); | |
377 | } | |
378 | //----------------------------------------------------------- | |
379 | void AliTPCPid::SetPcod(Int_t track,Int_t partcode) | |
380 | { | |
ad350af6 | 381 | // |
382 | // set part. code | |
383 | // | |
b8def77a | 384 | TVector xx(0,11); |
385 | if( ((TVector*)trs->At(track))->IsValid() ) | |
386 | {TVector yy( *((TVector*)trs->At(track)) );xx=yy; } | |
387 | if(xx(11)==0) | |
ad350af6 | 388 | {xx(11)=partcode; fmxtrs++; |
b8def77a | 389 | TClonesArray &arr=*trs; |
390 | new(arr[track])TVector(xx); | |
391 | } | |
392 | } | |
393 | //----------------------------------------------------------- | |
7360a026 | 394 | void AliTPCPid::PrintPID(Int_t track) |
ad350af6 | 395 | { |
396 | // | |
397 | // control print | |
398 | // | |
399 | cout<<fmxtrs<<" tracks in AliITSPid obj."<<endl; | |
b8def77a | 400 | if( ((TVector*)trs->At(track))->IsValid() ) |
401 | {TVector xx( *((TVector*)trs->At(track)) ); | |
402 | xx.Print(); | |
403 | } | |
404 | else | |
405 | {cout<<"No data for track "<<track<<endl;return;} | |
406 | } | |
407 | //----------------------------------------------------------- | |
408 | void AliTPCPid::Tab(void) | |
409 | { | |
ad350af6 | 410 | // |
411 | // fill table | |
412 | // | |
b8def77a | 413 | if(trs->GetEntries()==0){cout<<"No entries in TAB"<<endl;return;} |
414 | cout<<"------------------------------------------------------------------------"<<endl; | |
415 | cout<<"Nq"<<" q1 "<<" q2 "<<" q3 "<<" q4 "<<" q5 "<< | |
416 | " Qtrm " <<" Wpi "<<" Wk "<<" Wp "<<"Pmom "<<endl; | |
417 | cout<<"------------------------------------------------------------------------"<<endl; | |
418 | for(Int_t i=0;i<trs->GetEntries();i++) | |
419 | { | |
420 | TVector xx( *((TVector*)trs->At(i)) ); | |
421 | if( xx.IsValid() && xx(0)>0 ) | |
422 | { | |
423 | TVector xx( *((TVector*)trs->At(i)) ); | |
424 | if(xx(0)>=2) | |
425 | { | |
426 | // 1)Calculate Qtrm | |
ad350af6 | 427 | xx(6)=(this->Qtrm(i)); |
b8def77a | 428 | |
429 | }else{ | |
430 | xx(6)=xx(1); | |
431 | } | |
432 | // 2)Calculate Wpi,Wk,Wp | |
433 | this->GetPcode(xx(6),xx(10)/1000.); | |
434 | xx(7)=GetWpi(); | |
435 | xx(8)=GetWk(); | |
436 | xx(9)=GetWp(); | |
437 | // 3)Print table | |
438 | if(xx(0)>0){ | |
439 | cout<<xx(0)<<" "; | |
440 | for(Int_t j=1;j<11;j++){ | |
441 | cout.width(7);cout.precision(5);cout<<xx(j); | |
442 | } | |
443 | cout<<endl; | |
444 | } | |
445 | // 4)Update data in TVector | |
446 | TClonesArray &arr=*trs; | |
447 | new(arr[i])TVector(xx); | |
448 | } | |
449 | else | |
450 | {/*cout<<"No data for track "<<i<<endl;*/} | |
451 | }// End loop for tracks | |
452 | } | |
453 | void AliTPCPid::Reset(void) | |
454 | { | |
ad350af6 | 455 | // |
456 | // reset | |
457 | // | |
b8def77a | 458 | for(Int_t i=0;i<trs->GetEntries();i++){ |
459 | TVector xx(0,11); | |
460 | TClonesArray &arr=*trs; | |
461 | new(arr[i])TVector(xx); | |
462 | } | |
463 | } | |
464 | //----------------------------------------------------------- | |
179c6296 | 465 | AliTPCPid::AliTPCPid(Int_t ntrack):TObject(), |
466 | fCutKa(0), | |
467 | fCutPr(0), | |
468 | fCutKaTune(0.), | |
469 | fCutPrTune(0.), | |
470 | fSigmin(0.), | |
471 | fSilent(0), | |
472 | fmxtrs(0), | |
473 | trs(0), | |
474 | fqtot(0.), | |
475 | fWpi(0.), | |
476 | fWk(0.), | |
477 | fWp(0.), | |
478 | fRpik(0.), | |
479 | fRppi(0.), | |
480 | fRpka(0.), | |
481 | fRp(0.), | |
482 | fPcode(0) | |
b8def77a | 483 | { |
484 | trs = new TClonesArray("TVector",ntrack); | |
485 | TClonesArray &arr=*trs; | |
486 | for(Int_t i=0;i<ntrack;i++)new(arr[i])TVector(0,11); | |
179c6296 | 487 | |
b8def77a | 488 | |
489 | //fCutKa = new TF1("fkaons","[0]/x/x+[1]",0.1,1.2); | |
490 | //fCutPr = new TF1("fprotons","[0]/x/x +[1]",0.2,1.2); | |
ad350af6 | 491 | TF1 *frmska=0; |
176aff27 | 492 | |
ad350af6 | 493 | frmska = new TF1("x_frmska","1.46-7.82*x+16.78*x^2-15.53*x^3+5.24*x^4 ", |
b8def77a | 494 | 0.1,1.2); |
495 | fCutKa = new TF1("fkaons", | |
496 | "1.25+0.044/x/x+1.25+0.044*x-13.87*x^2+22.37*x^3-10.05*x^4-2.5*x_frmska", | |
497 | 0.1,1.2); | |
498 | fCutPr = new TF1("fprotons", | |
499 | "0.83*(15.32-56.094*x+89.962*x^2-66.1856*x^3+18.4052*x^4)", | |
500 | 0.2,1.2); | |
501 | fCutKaTune=1.1; // 0.92; | |
502 | fCutPrTune=1.0; //0.80; | |
503 | ||
ad350af6 | 504 | const int kinf=10; |
b8def77a | 505 | // Ncut Pmom pilo pihi klo khi plo phi |
ad350af6 | 506 | // fcut[j] [0] [1] [2] [3] [4] [5] [6] |
b8def77a | 507 | //---------------------------------------------------------------- |
ad350af6 | 508 | SetCut( 1, 0.120, 0. , 0. , kinf , kinf , kinf , kinf ); |
509 | SetCut( 2, 0.200, 0. , 6.0 , 6.0 , kinf , kinf , kinf ); //120-200 | |
510 | SetCut( 3, 0.400, 0. , 3.5 , 3.5 , 9.0 , 9.0 , kinf ); //200-400 | |
511 | SetCut( 4, 0.450, 0. , 1.9 , 1.9 , 4.0 , 4.0 , kinf ); //400-450 | |
b8def77a | 512 | //---------------------------------------------------------------- |
ad350af6 | 513 | SetCut( 5, 0.500, 0.976, 0.108, 1.484 , 0.159 , 3.5 , kinf ); //450-500 |
514 | SetCut( 6, 0.550, 0.979, 0.108, 1.376 , 0.145 , 3.0 , kinf ); //500-550 | |
b8def77a | 515 | //---------------------------------------------------------------- |
ad350af6 | 516 | SetCut( 7, 0.600, 0.984, 0.111, 1.295 , 0.146 , 2.7 , kinf ); //550-600 |
517 | SetCut( 8, 0.650, 0.989, 0.113, 1.239 , 0.141 , 2.5 , kinf ); //600-650 | |
518 | SetCut( 9, 0.730, 0.995, 0.109, 1.172 , 0.132 , 2.0 , kinf ); //650-730 | |
b8def77a | 519 | //---------------------------------------------------------------- |
520 | SetCut( 10, 0.830, 1.008, 0.116, 1.117 , 0.134 , 1.703, 0.209 ); //730-830 | |
521 | SetCut( 11, 0.930, 1.019, 0.115, 1.072 , 0.121 , 1.535, 0.215 ); //830-930 | |
522 | SetCut( 12, 1.230, 1.035, 0.117, 1.053 , 0.140 ,1.426, 0.270); //930-1030 | |
523 | //------------------------ pi,K --------------------- | |
ad350af6 | 524 | faprob[0][0]=33219.; faprob[1][0]=1971.; // faprob[0][i] - pions |
525 | faprob[0][1]=28828.; faprob[1][1]=1973.; // faprob[1][i] - kaons | |
b8def77a | 526 | //--------------------------------------------------- |
ad350af6 | 527 | faprob[0][2]=24532.; faprob[1][2]=1932.; faprob[2][2]=1948.; |
528 | faprob[0][3]=20797.; faprob[1][3]=1823.; faprob[2][3]=1970.; | |
529 | faprob[0][4]=27017.; faprob[1][4]=2681.; faprob[2][4]=2905.; | |
b8def77a | 530 | //------------------------ pi,K,p ------------------- |
ad350af6 | 531 | faprob[0][5]= 24563.; faprob[1][5]=2816.; faprob[2][5]=3219.; |
532 | faprob[0][6]= 16877.; faprob[1][6]=2231.; faprob[2][6]=2746.; | |
533 | faprob[0][7]= 11557.; faprob[1][7]=1681; faprob[2][7]=2190.; | |
b8def77a | 534 | |
535 | fSilent=kTRUE; | |
536 | } | |
537 | //----------------------------------------------------------- | |
538 | ||
539 | ||
540 |