4 #include <TClonesArray.h>
6 #include "AliTPCtrack.h"
7 #include "AliITStrackV2.h"
12 Float_t AliITSPid::Qtrm(Int_t track)
14 TVector q(*( this->GetVec(track) ));
19 Int_t nl=0; for(Int_t i=0;i<ml;i++){if(q(i)>fSigmin){vf[nl]=q(i+1);nl++;}}
22 case 1:q(6)=q(1); break;
23 case 2:q(6)=(q(1)+q(2))/2.; break;
25 for(int fi=0;fi<2;fi++){
27 do{ swap=0; float qmin=vf[fi];
28 for(int j=fi+1;j<nl;j++)
29 if(qmin>vf[j]){qmin=vf[j];vf[j]=vf[fi];vf[fi]=qmin;swap=1;};
32 q(6)= (vf[0]+vf[1])/2.;
35 for(Int_t i=0;i<nl;i++){q(i+1)=vf[i];} this->SetVec(track,q);
39 Float_t AliITSPid::Qtrm(Float_t qarr[6],Int_t narr)
43 if(narr>0&&narr<7){ml=narr;}else{return 0;};
44 nl=0; for(Int_t i=0;i<ml;i++){if(qarr[i]>fSigmin){q[nl]=qarr[i];nl++;}}
47 case 1:qm=q[0]; break;
48 case 2:qm=(q[0]+q[1])/2.; break;
51 for(int fi=0;fi<2;fi++){
52 do{ swap=0; qmin=q[fi];
53 for(int j=fi+1;j<nl;j++)
54 if(qmin>q[j]){qmin=q[j];q[j]=q[fi];q[fi]=qmin;swap=1;};
63 Int_t AliITSPid::Wpik(Float_t pm,Float_t q)
66 for(int i=0;i<6;i++){par[i]=fGGpi[i]->Eval(pm);}
67 fggpi->SetParameters(par);
69 for(int i=0;i<3;i++){par[i]=fGGka[i]->Eval(pm);}
70 fggka->SetParameters(par);
72 Float_t ppi=fggpi->Eval(q);
73 Float_t pka=fggka->Eval(q);
79 if(p>0)cout<<" ppi,pka="<<ppi/p<<" "<<pka/p<<endl;
86 fWp=0.; fWpi=ppi; fWk=pka;
87 if( pka>ppi){return fPcode=321;}else{return fPcode=211;}
90 //-----------------------------------------------------------
91 Int_t AliITSPid::Wpikp(Float_t pm,Float_t q)
94 for(int i=0;i<6;i++){par[i]=fGGpi[i]->Eval(pm);}
95 fggpi->SetParameters(par);
97 for(int i=0;i<3;i++){par[i]=fGGka[i]->Eval(pm);}
98 fggka->SetParameters(par);
100 for(int i=0;i<3;i++){par[i]=fGGpr[i]->Eval(pm);}
101 fggpr->SetParameters(par);
103 Float_t p,ppi,pka,ppr;
104 if( q>(fggpr->GetParameter(1)+fggpr->GetParameter(2)) )
105 { p=1.0; ppr=1.0; ppi=pka=0.0;
116 fWp=ppr; fWpi=ppi; fWk=pka;
117 //if(!fSilent)cout<<" ppi,pka,ppr="<<ppi<<" "<<pka<<" "<<ppr<<endl;
119 if( ppi>pka&&ppi>ppr )
121 else{ if(pka>ppr){return fPcode=321;}else{return fPcode=2212;}
126 //-----------------------------------------------------------
127 Int_t AliITSPid::GetPcode(TClonesArray* rps,Float_t pm)
129 Info("GetPcode","method not implemented - Inputs TClonesArray *%x , Float_t %f",rps,pm);
132 //-----------------------------------------------------------
133 Int_t AliITSPid::GetPcode(AliTPCtrack *track)
135 Double_t xk,par[5]; track->GetExternalParameters(xk,par);
136 Float_t phi=TMath::ASin(par[2]) + track->GetAlpha();
137 if (phi<-TMath::Pi()) phi+=2*TMath::Pi();
138 if (phi>=TMath::Pi()) phi-=2*TMath::Pi();
139 Float_t lam=TMath::ATan(par[3]);
140 Float_t pt1=TMath::Abs(par[4]);
141 Float_t mom=1./(pt1*TMath::Cos(lam));
142 Float_t dedx=track->GetdEdx();
143 Int_t pcode=GetPcode(dedx/40.,mom);
144 // cout<<"TPCtrack dedx,mom,pcode="<<dedx<<","<<mom<<","<<pcode<<endl;
145 return pcode?pcode:211;
147 //------------------------------------------------------------
148 Int_t AliITSPid::GetPcode(AliITSIOTrack *track)
154 Float_t mom=TMath::Sqrt(px*px+py*py+pz*pz);
155 //???????????????????
157 Float_t dedx=track->GetdEdx();
158 //???????????????????
159 Int_t pcode=GetPcode(dedx,mom);
160 // cout<<"ITSV1 dedx,mom,pcode="<<dedx<<","<<mom<<","<<pcode<<endl;
161 return pcode?pcode:211;
163 //-----------------------------------------------------------
164 Int_t AliITSPid::GetPcode(AliITStrackV2 *track)
166 if(track==0)return 0;
167 // track->Propagate(track->GetAlpha(),3.,0.1/65.19*1.848,0.1*1.848);
168 track->PropagateTo(3.,0.0028,65.19);
169 track->PropagateToVertex();
170 Double_t xk,par[5]; track->GetExternalParameters(xk,par);
171 Float_t lam=TMath::ATan(par[3]);
172 Float_t pt1=TMath::Abs(par[4]);
174 if( (pt1*TMath::Cos(lam))!=0. ){ mom=1./(pt1*TMath::Cos(lam)); }else{mom=0.;};
175 Float_t dedx=track->GetdEdx();
176 // cout<<"lam,pt1,mom,dedx="<<lam<<","<<pt1<<","<<mom<<","<<dedx<<endl;
177 Int_t pcode=GetPcode(dedx,mom);
178 // cout<<"ITS V2 dedx,mom,pcode="<<dedx<<","<<mom<<","<<pcode<<endl;
179 return pcode?pcode:211;
181 //-----------------------------------------------------------
182 Int_t AliITSPid::GetPcode(Float_t q,Float_t pm)
184 fWpi=fWk=fWp=0.; fPcode=0;
187 { if( q<fCutKa->Eval(pm) )
189 else{ if( q<fCutPr->Eval(pm) )
191 else{return Proton();}
195 if ( q>fCutPr->Eval(pm) )
196 {return Proton();} else {return Wpik(pm,q);};
197 if( pm<=1.10 ){ return Wpikp(pm,q); }
200 //-----------------------------------------------------------
201 void AliITSPid::SetCut(Int_t n,Float_t pm,Float_t pilo,Float_t pihi,
202 Float_t klo,Float_t khi,Float_t plo,Float_t phi)
213 //------------------------------------------------------------
214 void AliITSPid::SetVec(Int_t ntrack,TVector info)
216 TClonesArray& arr=*fTrs;
217 new( arr[ntrack] ) TVector(info);
219 //-----------------------------------------------------------
220 TVector* AliITSPid::GetVec(Int_t ntrack)
222 TClonesArray& arr=*fTrs;
223 return (TVector*)arr[ntrack];
225 //-----------------------------------------------------------
226 void AliITSPid::SetEdep(Int_t track,Float_t Edep)
229 if( ((TVector*)fTrs->At(track))->IsValid() )
230 {TVector yy( *((TVector*)fTrs->At(track)) );xx=yy; }
231 Int_t j=(Int_t)xx(0); if(j>4)return;
232 xx(++j)=Edep;xx(0)=j;
233 TClonesArray &arr=*fTrs;
234 new(arr[track])TVector(xx);
236 //-----------------------------------------------------------
237 void AliITSPid::SetPmom(Int_t track,Float_t Pmom)
240 if( ((TVector*)fTrs->At(track))->IsValid() )
241 {TVector yy( *((TVector*)fTrs->At(track)) );xx=yy; }
243 TClonesArray &arr=*fTrs;
244 new(arr[track])TVector(xx);
246 //-----------------------------------------------------------
247 void AliITSPid::SetPcod(Int_t track,Int_t partcode)
250 if( ((TVector*)fTrs->At(track))->IsValid() )
251 {TVector yy( *((TVector*)fTrs->At(track)) );xx=yy; }
253 {xx(11)=partcode; fMxtrs++;
254 TClonesArray &arr=*fTrs;
255 new(arr[track])TVector(xx);
258 //-----------------------------------------------------------
259 void AliITSPid::Print(Int_t track)
260 {cout<<fMxtrs<<" tracks in AliITSPid obj."<<endl;
261 if( ((TVector*)fTrs->At(track))->IsValid() )
262 {TVector xx( *((TVector*)fTrs->At(track)) );
266 {cout<<"No data for track "<<track<<endl;return;}
268 //-----------------------------------------------------------
269 void AliITSPid::Tab(void)
271 if(fTrs->GetEntries()==0){cout<<"No entries in TAB"<<endl;return;}
272 cout<<"------------------------------------------------------------------------"<<endl;
273 cout<<"Nq"<<" q1 "<<" q2 "<<" q3 "<<" q4 "<<" q5 "<<
274 " Qtrm " <<" Wpi "<<" Wk "<<" Wp "<<"Pmom "<<endl;
275 cout<<"------------------------------------------------------------------------"<<endl;
276 for(Int_t i=0;i<fTrs->GetEntries();i++)
278 TVector xx( *((TVector*)fTrs->At(i)) );
279 if( xx.IsValid() && xx(0)>0 )
281 TVector xx( *((TVector*)fTrs->At(i)) );
285 xx(6)=(this->Qtrm(i));
290 // 2)Calculate Wpi,Wk,Wp
291 this->GetPcode(xx(6),xx(10)/1000.);
298 for(Int_t j=1;j<11;j++){
299 if(i<7){ cout.width(7);cout.precision(4);cout<<xx(j);}
300 if(i>7){ cout.width(7);cout.precision(5);cout<<xx(j);}
304 // 4)Update data in TVector
305 TClonesArray &arr=*fTrs;
306 new(arr[i])TVector(xx);
309 {/*cout<<"No data for track "<<i<<endl;*/}
310 }// End loop for tracks
312 void AliITSPid::Reset(void)
314 for(Int_t i=0;i<fTrs->GetEntries();i++){
316 TClonesArray &arr=*fTrs;
317 new(arr[i])TVector(xx);
320 //-----------------------------------------------------------
321 AliITSPid::AliITSPid(Int_t ntrack)
324 fTrs = new TClonesArray("TVector",ntrack);
325 TClonesArray &arr=*fTrs;
326 for(Int_t i=0;i<ntrack;i++)new(arr[i])TVector(0,11);
329 fCutKa=new TF1("fcutka","pol4",0.05,0.4);
330 Double_t ka[5]={25.616, -161.59, 408.97, -462.17, 192.86};
331 fCutKa->SetParameters(ka);
333 fCutPr=new TF1("fcutpr","[0]/x/x+[1]",0.05,1.1);
334 Double_t pr[2]={0.70675,0.4455};
335 fCutPr->SetParameters(pr);
337 //---------- signal fit ----------
339 fGGpi[0]=new TF1("fp1pi","pol4",0.34,1.2);
340 Double_t parpi0[10]={ -1.9096471071e+03, 4.5354331545e+04, -1.1860738840e+05,
341 1.1405329025e+05, -3.8289694496e+04 };
342 fGGpi[0]->SetParameters(parpi0);
343 fGGpi[1]=new TF1("fp2pi","[0]/x/x+[1]",0.34,1.2);
344 Double_t parpi1[10]={ 1.0791668283e-02, 9.7347716496e-01 };
345 fGGpi[1]->SetParameters(parpi1);
346 fGGpi[2]=new TF1("fp3pi","[0]/x/x+[1]",0.34,1.2);
347 Double_t parpi2[10]={ 5.8191602279e-04, 9.7285601334e-02 };
348 fGGpi[2]->SetParameters(parpi2);
349 fGGpi[3]=new TF1("fp4pi","pol4",0.34,1.2);
350 Double_t parpi3[10]={ 6.6267353195e+02, 7.1595101104e+02, -5.3095111914e+03,
351 6.2900977606e+03, -2.2935862292e+03 };
352 fGGpi[3]->SetParameters(parpi3);
353 fGGpi[4]=new TF1("fp5pi","[0]/x/x+[1]",0.34,1.2);
354 Double_t parpi4[10]={ 9.0419011783e-03, 1.1628922525e+00 };
355 fGGpi[4]->SetParameters(parpi4);
356 fGGpi[5]=new TF1("fp6pi","[0]/x/x+[1]",0.34,1.2);
357 Double_t parpi5[10]={ 1.8324872519e-03, 2.1503968838e-01 };
358 fGGpi[5]->SetParameters(parpi5);
361 fGGka[0]=new TF1("fp1ka","pol4",0.24,1.2);
362 Double_t parka0[20]={
363 -1.1204243395e+02,4.6716191428e+01,2.2584059281e+03,
364 -3.7123338009e+03,1.6003647641e+03 };
365 fGGka[0]->SetParameters(parka0);
366 fGGka[1]=new TF1("fp2ka","[0]/x/x+[1]",0.24,1.2);
367 Double_t parka1[20]={
368 2.5181172905e-01,8.7566001814e-01 };
369 fGGka[1]->SetParameters(parka1);
370 fGGka[2]=new TF1("fp3ka","pol6",0.24,1.2);
371 Double_t parka2[20]={
372 8.6236021573e+00,-7.0970427531e+01,2.4846827669e+02,
373 -4.6094401290e+02,4.7546751408e+02,-2.5807112462e+02,
375 fGGka[2]->SetParameters(parka2);
378 fGGpr[0]=new TF1("fp1pr","pol4",0.4,1.2);
379 Double_t parpr0[10]={
380 6.0150106543e+01,-8.8176206410e+02,3.1222644604e+03,
381 -3.5269200901e+03,1.2859128345e+03 };
382 fGGpr[0]->SetParameters(parpr0);
383 fGGpr[1]=new TF1("fp2pr","[0]/x/x+[1]",0.4,1.2);
384 Double_t parpr1[10]={
385 9.4970837607e-01,7.3573504201e-01 };
386 fGGpr[1]->SetParameters(parpr1);
387 fGGpr[2]=new TF1("fp3pr","[0]/x/x+[1]",0.4,1.2);
388 Double_t parpr2[10]={
389 1.2498403757e-01,2.7845072306e-02 };
390 fGGpr[2]->SetParameters(parpr2);
392 //----------- end fit -----------
394 fggpr=new TF1("ggpr","gaus",0.4,1.2);
395 fggpi=new TF1("ggpi","gaus+gaus(3)",0.4,1.2);
396 fggka=new TF1("ggka","gaus",0.4,1.2);
398 //-------------------------------------------------
400 // Ncut Pmom pilo pihi klo khi plo phi
401 // cut[j] [0] [1] [2] [3] [4] [5] [6]
402 //----------------------------------------------------------------
403 SetCut( 1, 0.12 , 0. , 0. , kInf , kInf , kInf , kInf );
404 SetCut( 2, 0.20 , 0. , 6.0 , 6.0 , kInf , kInf , kInf );
405 SetCut( 3, 0.30 , 0. , 3.5 , 3.5 , 9.0 , 9.0 , kInf );
406 SetCut( 4, 0.41 , 0. , 1.9 , 1.9 , 4.0 , 4.0 , kInf );
407 //----------------------------------------------------------------
408 SetCut( 5, 0.47 , 0.935, 0.139, 1.738 , 0.498 , 3.5 , kInf ); //410-470
409 SetCut( 6, 0.53 , 0.914, 0.136, 1.493 , 0.436 , 3.0 , kInf ); //470-530
410 //----------------------------------------------------------------
411 SetCut( 7, 0.59 , 0.895, 0.131, 1.384 , 0.290 , 2.7 , kInf ); //530-590
412 SetCut( 8, 0.65 , 0.887, 0.121, 1.167 , 0.287 , 2.5 , kInf ); //590-650
413 SetCut( 9, 0.73 , 0.879, 0.120, 1.153 , 0.257 , 2.0 , kInf ); //650-730
414 //----------------------------------------------------------------
415 SetCut( 10, 0.83 , 0.880, 0.126, 1.164 , 0.204 , 2.308 , 0.297 ); //730-830
416 SetCut( 11, 0.93 , 0.918, 0.145, 1.164 , 0.204 , 2.00 , 0.168 ); //830-930
417 SetCut( 12, 1.03 , 0.899, 0.128, 1.164 , 0.204 ,1.80 , 0.168);
418 //------------------------ pi,K ---------------------
419 fAprob[0][0]=1212; fAprob[1][0]=33.; // fAprob[0][i] - const for pions,cut[i+5]
420 fAprob[0][1]=1022; fAprob[1][1]=46.2 ; // fAprob[1][i] - kaons
421 //---------------------------------------------------
422 fAprob[0][2]= 889.7; fAprob[1][2]=66.58; fAprob[2][2]=14.53;
423 fAprob[0][3]= 686.; fAprob[1][3]=88.8; fAprob[2][3]=19.27;
424 fAprob[0][4]= 697.; fAprob[1][4]=125.6; fAprob[2][4]=28.67;
425 //------------------------ pi,K,p -------------------
426 fAprob[0][5]= 633.7; fAprob[1][5]=100.1; fAprob[2][5]=37.99; // fAprob[2][i] - protons
427 fAprob[0][6]= 469.5; fAprob[1][6]=20.74; fAprob[2][6]=25.43;
428 fAprob[0][7]= 355.; fAprob[1][7]=
429 355.*(20.74/469.5); fAprob[2][7]=34.08;