[u/mrichter/AliRoot.git] / TOF / AliTOFT0maker.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/
/* $Id: AliTOFT0maker.cxx,v 1.8 2010/01/19 16:32:20 noferini Exp $ */

/////////////////////////////////////////////////////////////////////////////
//                                                                         //
//  This class contains the basic functions for the time zero              //
//  evaluation with TOF detector informations.                             //
// Use case in an analysis task:                                           //
//                                                                         //
// Create the object in the task constructor (fTOFmaker is a private var)  //
// AliESDpid *extPID=new AliESDpid();                                      //
// fTOFmaker = new AliTOFT0maker(extPID);                                  //
// fTOFmaker->SetTimeResolution(100.0); // if you want set the TOF res     //
// 115 ps is the TOF default resolution value                              //
//                                                                         //
// Use the RemakePID method in the task::Exec                              //
// Double_t* calcolot0;                                                    //
// calcolot0=fTOFmaker->RemakePID(fESD);                                   //
// //calcolot0[0] = calculated event time                                  // 
// //calcolot0[1] = event time time resolution                             //
// //calcolot0[2] = average event time for the current fill                //
// //calcolot0[3] = tracks at TOF                                          // 
// //calcolot0[4] = calculated event time (only TOF)                       //
// //calcolot0[5] = event time time resolution (only TOF)                  //
// //calcolot0[6] = sigma t0 fill                                          //
// //calcolot0[7] = tracks at TOF really used in tht algorithm             // 
//                                                                         //
// Let consider that:                                                      //
// - the PIF is automatically recalculated with the event time subtrction  //
//                                                                         //
/////////////////////////////////////////////////////////////////////////////

#include "AliTOFT0v1.h"
#include "AliTOFT0maker.h"
#include "AliPID.h"
#include "AliLog.h"
#include "AliESDpid.h"
#include "AliESDEvent.h"
#include "TFile.h"
#include "TH1F.h"
#include "AliTOFcalib.h"
#include "AliTOFRunParams.h"
#include "TRandom.h"
#include "AliTOFHeader.h"

ClassImp(AliTOFT0maker)
           
//____________________________________________________________________________ 
AliTOFT0maker::AliTOFT0maker():
  TObject(),
  fT0TOF(NULL),
  fPIDesd(NULL),
  fExternalPIDFlag(kFALSE),
  fTOFcalib(NULL),
  fNoTOFT0(0),
  fNmomBins(0),
  fTimeResolution(100),
  fT0sigma(1000),
  fHmapChannel(0),
  fKmask(0),
  fT0width(150.),
  fT0spreadExt(-1.),
  fT0fillExt(0)
{
  // ctr
  fCalculated[0] = 0;
  fCalculated[1] = 0;
  fCalculated[2] = 0;
  fCalculated[3] = 0;

  if(AliPID::ParticleMass(0) == 0) new AliPID();

  fPIDesd = new AliESDpid();

  fNmomBins = fPIDesd->GetTOFResponse().GetNmomBins();
  SetTOFResponse();

  fT0TOF = new AliTOFT0v1(fPIDesd);

}
//____________________________________________________________________________ 
AliTOFT0maker::AliTOFT0maker(AliESDpid *externalPID, AliTOFcalib *tofCalib):
    TObject(),
    fT0TOF(NULL),
    fPIDesd(externalPID),
    fExternalPIDFlag(kTRUE),
    fTOFcalib(tofCalib),
    fNoTOFT0(0),
    fNmomBins(0),
    fTimeResolution(100),
    fT0sigma(1000),
    fHmapChannel(0),
    fKmask(0),
    fT0width(150.),
    fT0spreadExt(-1.),
    fT0fillExt(0)
{
  // ctr
  fCalculated[0] = 0;
  fCalculated[1] = 0;
  fCalculated[2] = 0;
  fCalculated[3] = 0;

  if(AliPID::ParticleMass(0) == 0) new AliPID();

  if(!fPIDesd){
    fPIDesd = new AliESDpid();
    fExternalPIDFlag = kFALSE;
  }

  fNmomBins = fPIDesd->GetTOFResponse().GetNmomBins();
  SetTOFResponse();

  fT0TOF = new AliTOFT0v1(fPIDesd);

}

//____________________________________________________________________________ 
AliTOFT0maker::~AliTOFT0maker()
{
  // dtor

  delete fT0TOF;
  if (!fExternalPIDFlag) delete fPIDesd;
}
//____________________________________________________________________________ 
Double_t* AliTOFT0maker::ComputeT0TOF(AliESDEvent *esd,Double_t t0time,Double_t t0sigma){
  //
  // Remake TOF PID probabilities
  //

  Double_t t0tof[6];

  if(fKmask) ApplyMask(esd);

  Double_t t0fill = 0.;

  fPIDesd->GetTOFResponse().ResetT0info();

  /* get T0 spread from TOFcalib if available otherwise use default value */
  if (fTOFcalib && esd) {
    AliTOFRunParams *runParams = fTOFcalib->GetRunParams();
    if (runParams && runParams->GetTimestamp(0) != 0) {
      Float_t t0spread = runParams->EvalT0Spread(esd->GetTimeStamp());
      if(fT0spreadExt > 0) SetT0FillWidth(fT0spreadExt);
      else{
	SetT0FillWidth(t0spread);
	t0fill = fT0fillExt;
      }
    }
    else{
      if(fT0spreadExt > 0) SetT0FillWidth(fT0spreadExt);
      t0fill = fT0fillExt;
    }
  }

  Float_t thrGood = TMath::Max(Float_t(500.),fT0width*3);

  fT0TOF->Init(esd);
  AliTOFT0v1* t0maker= fT0TOF;

  t0maker->DefineT0("all",1.5,3.0);
  t0tof[0] = t0maker->GetResult(0);
  t0tof[1] = t0maker->GetResult(1);
  t0tof[2] = t0maker->GetResult(2);
  t0tof[3] = t0maker->GetResult(3);
  t0tof[4] = t0maker->GetResult(4);
  t0tof[5] = t0maker->GetResult(5);

  Float_t lT0Current=0.;
  fT0sigma=1000;

//   Int_t nrun = esd->GetRunNumber();

  t0time += t0fill;

  Float_t sigmaFill = fT0width;

  if(sigmaFill < 20) sigmaFill = 140;

  fCalculated[0]=-1000*t0tof[0]; // best t0
  fCalculated[1]=1000*t0tof[1]; // sigma best t0
  fCalculated[2] = t0fill;    //t0 fill
  fCalculated[3] = t0tof[2];  // n TOF tracks
  fCalculated[4]=-1000*t0tof[0]; // TOF t0
  fCalculated[5]=1000*t0tof[1]; // TOF t0 sigma
  fCalculated[6]=sigmaFill; // sigma t0 fill
  fCalculated[7] = t0tof[3];  // n TOF tracks used for T0

  if(fCalculated[7] > 30) thrGood = 10000000;

  //statistics
  fCalculated[8] = t0tof[4]; // real time in s
  fCalculated[9] = t0tof[5]; // cpu time in s

  if(fCalculated[1] < sigmaFill && TMath::Abs(fCalculated[0] - t0fill) < thrGood && fCalculated[1] < fTimeResolution*1.2){
    fT0sigma=fCalculated[1];
    lT0Current=fCalculated[0];
  }
  else{
    fCalculated[4] = t0fill;
    fCalculated[5] = sigmaFill;
  }

  if(fCalculated[1] < 1 || fT0sigma > sigmaFill || fCalculated[1] > fTimeResolution* 1.2){
    fT0sigma =1000;
    fCalculated[4] = t0fill;
    fCalculated[5] = sigmaFill;
  }

  if(t0sigma < 1000){
    if(fT0sigma < 1000){
      Double_t w1 = 1./t0sigma/t0sigma;
      Double_t w2 = 1./fCalculated[1]/fCalculated[1];

      Double_t wtot = w1+w2;

      lT0Current = (w1*t0time + w2*fCalculated[0]) / wtot;
      fT0sigma = TMath::Sqrt(1./wtot);
    }
    else{
      lT0Current=t0time;
      fT0sigma=t0sigma;
    }
  }

  if(fT0sigma < sigmaFill && TMath::Abs(lT0Current - t0fill) < thrGood){
    fCalculated[1]=fT0sigma;
    fCalculated[0]=lT0Current;
  }

  if(fT0sigma >= 1000 || fNoTOFT0){
    lT0Current = t0fill;
    fT0sigma = sigmaFill;

    fCalculated[0] = t0fill;
    fCalculated[1] = sigmaFill;
  }

  // T0 pt bin
  if(fCalculated[7] < 100){
    for(Int_t i=0;i<fNmomBins;i++){
      t0maker->DefineT0("all",fPIDesd->GetTOFResponse().GetMinMom(i),fPIDesd->GetTOFResponse().GetMaxMom(i));
      t0tof[0] = t0maker->GetResult(0);
      t0tof[1] = t0maker->GetResult(1);
      t0tof[2] = t0maker->GetResult(2);
      t0tof[3] = t0maker->GetResult(3);
 

      Float_t t0bin =-1000*t0tof[0]; // best t0
      Float_t t0binRes =1000*t0tof[1]; // sigma best t0
      
      if(t0binRes < sigmaFill  && t0binRes < fTimeResolution * 1.2 && TMath::Abs(t0bin - t0fill) < thrGood){
	// Ok T0
	if(t0sigma < 1000){
	  Double_t w1 = 1./t0sigma/t0sigma;
	  Double_t w2 = 1./t0binRes/t0binRes;
	  
	  Double_t wtot = w1+w2;
	  
	  t0bin = (w1*t0time + w2*t0bin) / wtot;
	  t0binRes = TMath::Sqrt(1./wtot);
	}
      }
      else{
	t0bin = t0fill;
	t0binRes = sigmaFill;
	if(t0sigma < 1000){
	  t0bin = t0time;
	   t0binRes= t0sigma;	  
	}
      }
      fPIDesd->GetTOFResponse().SetT0bin(i,t0bin);
      fPIDesd->GetTOFResponse().SetT0binRes(i,t0binRes);
    }
  }
  else{
    for(Int_t i=0;i<fNmomBins;i++){
      fPIDesd->GetTOFResponse().SetT0bin(i,lT0Current);
      fPIDesd->GetTOFResponse().SetT0binRes(i,fT0sigma);
    }
  }

  return fCalculated;
}
//____________________________________________________________________________ 
Double_t  *AliTOFT0maker::GetT0p(Float_t p){// [0]=to -- [1] = sigma T0
  Int_t i=fPIDesd->GetTOFResponse().GetMomBin(p);
  
  fT0cur[0] = fPIDesd->GetTOFResponse().GetT0bin(i);
  fT0cur[1] = fPIDesd->GetTOFResponse().GetT0binRes(i);

  return fT0cur;
}
//____________________________________________________________________________ 
void AliTOFT0maker::SetTOFResponse(){
  fPIDesd->GetTOFResponse().SetTimeResolution(fTimeResolution);
}
//____________________________________________________________________________ 
Float_t AliTOFT0maker::GetExpectedSigma(Float_t mom, Float_t tof, Float_t mass){
  Float_t sigma = fPIDesd->GetTOFResponse().GetExpectedSigma(mom,tof,mass);

  return sigma;
}
//____________________________________________________________________________ 
void AliTOFT0maker::ApplyT0TOF(AliESDEvent *esd){
  //
  // Recalculate TOF PID probabilities
  //

// subtruct t0 for each track
   Int_t ntracks = esd->GetNumberOfTracks();
  
   while (ntracks--) {
       AliESDtrack *t=esd->GetTrack(ntracks);
    
       if ((t->GetStatus()&AliESDtrack::kTOFout)==0) continue;
    
       Double_t time=t->GetTOFsignal();
       Float_t p = t->GetP();

       Double_t *t0=GetT0p(p);
       time -= t0[0];
       t->SetTOFsignal(time);
   }

   for(Int_t i=0;i<fNmomBins;i++){
       fPIDesd->GetTOFResponse().SetT0bin(i,0.0);
   }
   
  //
}
//____________________________________________________________________________ 
void  AliTOFT0maker::LoadChannelMap(char *filename){
  // Load the histo with the channel off map
  TFile *f= new TFile(filename);
  if(!f){
    printf("Cannot open the channel map file (%s)\n",filename);
    return;
  }
  
  fHmapChannel = (TH1F *) f->Get("hChEnabled");
  
  if(!fHmapChannel){
    printf("Cannot laod the channel map histo (from %s)\n",filename);
    return;
  }
    
}
//____________________________________________________________________________ 
void AliTOFT0maker::ApplyMask(AliESDEvent * const esd){
  // Switch off the disable channel
  if(!fHmapChannel){
    printf("Channel Map is not available\n");
    return;
  }
  
  Int_t ntracks = esd->GetNumberOfTracks();
  
  while (ntracks--) {
    AliESDtrack *t=esd->GetTrack(ntracks);    

    if ((t->GetStatus()&AliESDtrack::kTOFout)==0) continue;

    Int_t chan = t->GetTOFCalChannel();
 
    if(fHmapChannel->GetBinContent(chan) < 0.01){
      t->ResetStatus(AliESDtrack::kTOFout);
    }
  }
}

Float_t  
AliTOFT0maker::TuneForMC(AliESDEvent *esd){ // return true T0 event
  //
  // tune for MC data
  //

  Float_t TOFtimeResolutionDefault=80;

  Float_t t0 = gRandom->Gaus(0.,fT0width); 

  Float_t extraSmearing = 0;

  if(fTimeResolution > TOFtimeResolutionDefault){
    extraSmearing = TMath::Sqrt(fTimeResolution*fTimeResolution - TOFtimeResolutionDefault*TOFtimeResolutionDefault);
  }

  // subtruct t0 for each track
  Int_t ntracks = esd->GetNumberOfTracks();
  
  while (ntracks--) {
    AliESDtrack *t=esd->GetTrack(ntracks);
    
    if ((t->GetStatus()&AliESDtrack::kTOFout)==0) continue;
    
    /* check if channel is enabled */
    if (fTOFcalib && !fTOFcalib->IsChannelEnabled(t->GetTOFCalChannel())) {
      /* reset TOF status */
      t->ResetStatus(AliESDtrack::kTOFin);
      t->ResetStatus(AliESDtrack::kTOFout);
      t->ResetStatus(AliESDtrack::kTOFmismatch);
      t->ResetStatus(AliESDtrack::kTOFpid);
    }

    Double_t time=t->GetTOFsignal();

    time += t0;

    if(extraSmearing>0){
      Float_t smearing = gRandom->Gaus(0.,extraSmearing);
      time += smearing;
    }

    t->SetTOFsignal(time);
  }
  //
  return t0;
}
//_________________________________________________________________________
void     AliTOFT0maker::WriteInESD(AliESDEvent *esd){
  //
  // Write t0Gen, t0ResGen, nt0;
  //       t0resESD[0:nt0], it0ESD[0:nt0]
  // in the AliESDEvent
  //
    Int_t nMomBins = fPIDesd->GetTOFResponse().GetNmomBins();

    Int_t nt0=0;
    Float_t *t0 = new Float_t[nMomBins];
    Float_t *t0res = new Float_t[nMomBins];
    Int_t *multT0 = new Int_t[nMomBins];

    for(Int_t i=0;i<nMomBins;i++){
//	printf("START %i) %f %f\n",i,fT0event[i],fT0resolution[i]);
	multT0[i]=0;
	Bool_t kNewT0=kTRUE;
	for(Int_t j=0;j < nt0;j++){
	    if(TMath::Abs(fPIDesd->GetTOFResponse().GetT0bin(i) - t0[j])<0.1){
		kNewT0=kFALSE;
		multT0[j]++;
		j=nMomBins*10;
	    }
	}
	if(kNewT0){
	    t0[nt0]=fPIDesd->GetTOFResponse().GetT0bin(i);
	    t0res[nt0]=fPIDesd->GetTOFResponse().GetT0binRes(i);
	    nt0++;
	}
    }

    Int_t iMultT0=0,nmult=0;
    for(Int_t j=0;j < nt0;j++){ // find the most frequent
	if(multT0[j] > nmult){
	    iMultT0 = j;
	    nmult = multT0[j];
	}
    }

    Float_t *t0ESD = new Float_t[nMomBins];
    Float_t *t0resESD = new Float_t[nMomBins];
    Int_t *it0ESD = new Int_t[nMomBins];
    
    Float_t t0Gen,t0ResGen;
    t0Gen = t0[iMultT0];
    t0ResGen = t0res[iMultT0];
    nt0=0;
    //  printf("T0 to ESD\n%f %f\n",t0Gen,t0ResGen);
    for(Int_t i=0;i<nMomBins;i++){
	if(TMath::Abs(fPIDesd->GetTOFResponse().GetT0bin(i) - t0Gen)>0.1){
	    t0ESD[nt0]=fPIDesd->GetTOFResponse().GetT0bin(i);
	    t0resESD[nt0]=fPIDesd->GetTOFResponse().GetT0binRes(i);
	    it0ESD[nt0]=i;
//	    printf("%i) %f %f %i\n",nt0,t0ESD[nt0],t0resESD[nt0],it0ESD[nt0]);
	    nt0++;
	}
    }

    // Write  t0Gen,t0ResGen; nt0; t0resESD[0:nt0],it0ESD[0:nt0] in the AliESDEvent

   AliTOFHeader *tofHeader =
	new AliTOFHeader(t0Gen,t0ResGen,nt0,
			 t0ESD,t0resESD,it0ESD,fTimeResolution,fT0width);
  
    esd->SetTOFHeader(tofHeader);

    AliDebug(1,Form("resTOF=%f T0spread=%f t0Gen=%f t0resGen=%f",fTimeResolution,fT0width,t0Gen,t0ResGen));
    AliDebug(1,Form("%d ",nt0));
    for (Int_t ii=0; ii<nt0; ii++)
      AliDebug(1,Form("pBin=%d t0val=%f t0res=%f",it0ESD[ii],t0ESD[ii],t0resESD[ii]));
    
    delete[] t0;
    t0 = NULL;
    delete[] t0res;
    t0res = NULL;
    delete[] multT0;
    multT0 = NULL;
    delete[] t0ESD;
    t0ESD = NULL;
    delete[] t0resESD;
    t0resESD = NULL;
    delete[] it0ESD;
    it0ESD = NULL;

}
Commit	Line	Data
8f589502	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	**************************************************************************/
6a4e212e	15	/* $Id: AliTOFT0maker.cxx,v 1.8 2010/01/19 16:32:20 noferini Exp $ */
8f589502	16
	17	/////////////////////////////////////////////////////////////////////////////
	18	// //
	19	// This class contains the basic functions for the time zero //
6a4e212e	20	// evaluation with TOF detector informations. //
	21	// Use case in an analysis task: //
	22	// //
	23	// Create the object in the task constructor (fTOFmaker is a private var) //
5b4ed716	24	// AliESDpid *extPID=new AliESDpid(); //
	25	// fTOFmaker = new AliTOFT0maker(extPID); //
	26	// fTOFmaker->SetTimeResolution(100.0); // if you want set the TOF res //
6a4e212e	27	// 115 ps is the TOF default resolution value //
	28	// //
	29	// Use the RemakePID method in the task::Exec //
	30	// Double_t* calcolot0; //
	31	// calcolot0=fTOFmaker->RemakePID(fESD); //
	32	// //calcolot0[0] = calculated event time //
	33	// //calcolot0[1] = event time time resolution //
	34	// //calcolot0[2] = average event time for the current fill //
03bd764d	35	// //calcolot0[3] = tracks at TOF //
	36	// //calcolot0[4] = calculated event time (only TOF) //
	37	// //calcolot0[5] = event time time resolution (only TOF) //
	38	// //calcolot0[6] = sigma t0 fill //
	39	// //calcolot0[7] = tracks at TOF really used in tht algorithm //
6a4e212e	40	// //
	41	// Let consider that: //
	42	// - the PIF is automatically recalculated with the event time subtrction //
8f589502	43	// //
	44	/////////////////////////////////////////////////////////////////////////////
	45
536031f2	46	#include "AliTOFT0v1.h"
536031f2	47	#include "AliTOFT0maker.h"
536031f2	48	#include "AliPID.h"
f858b00e	49	#include "AliLog.h"
536031f2	50	#include "AliESDpid.h"
03bd764d	51	#include "AliESDEvent.h"
	52	#include "TFile.h"
	53	#include "TH1F.h"
5b4ed716	54	#include "AliTOFcalib.h"
	55	#include "AliTOFRunParams.h"
	56	#include "TRandom.h"
f858b00e	57	#include "AliTOFHeader.h"
536031f2	58
	59	ClassImp(AliTOFT0maker)
	60
	61	//____________________________________________________________________________
5b4ed716	62	AliTOFT0maker::AliTOFT0maker():
	63	TObject(),
	64	fT0TOF(NULL),
	65	fPIDesd(NULL),
	66	fExternalPIDFlag(kFALSE),
	67	fTOFcalib(NULL),
	68	fNoTOFT0(0),
2a258f40	69	fNmomBins(0),
5b4ed716	70	fTimeResolution(100),
	71	fT0sigma(1000),
	72	fHmapChannel(0),
	73	fKmask(0),
2a258f40	74	fT0width(150.),
	75	fT0spreadExt(-1.),
	76	fT0fillExt(0)
5b4ed716	77	{
	78	// ctr
	79	fCalculated[0] = 0;
	80	fCalculated[1] = 0;
	81	fCalculated[2] = 0;
	82	fCalculated[3] = 0;
	83
5b4ed716	84	if(AliPID::ParticleMass(0) == 0) new AliPID();
	85
	86	fPIDesd = new AliESDpid();
	87
2a258f40	88	fNmomBins = fPIDesd->GetTOFResponse().GetNmomBins();
	89	SetTOFResponse();
	90
	91	fT0TOF = new AliTOFT0v1(fPIDesd);
	92
5b4ed716	93	}
	94	//____________________________________________________________________________
	95	AliTOFT0maker::AliTOFT0maker(AliESDpid externalPID, AliTOFcalib tofCalib):
	96	TObject(),
	97	fT0TOF(NULL),
	98	fPIDesd(externalPID),
	99	fExternalPIDFlag(kTRUE),
	100	fTOFcalib(tofCalib),
03bd764d	101	fNoTOFT0(0),
2a258f40	102	fNmomBins(0),
5b4ed716	103	fTimeResolution(100),
03bd764d	104	fT0sigma(1000),
03bd764d	105	fHmapChannel(0),
5b4ed716	106	fKmask(0),
2a258f40	107	fT0width(150.),
	108	fT0spreadExt(-1.),
	109	fT0fillExt(0)
536031f2	110	{
6a4e212e	111	// ctr
6a4e212e	112	fCalculated[0] = 0;
	113	fCalculated[1] = 0;
	114	fCalculated[2] = 0;
03bd764d	115	fCalculated[3] = 0;
6a4e212e	116
536031f2	117	if(AliPID::ParticleMass(0) == 0) new AliPID();
03bd764d	118
5b4ed716	119	if(!fPIDesd){
	120	fPIDesd = new AliESDpid();
	121	fExternalPIDFlag = kFALSE;
	122	}
	123
2a258f40	124	fNmomBins = fPIDesd->GetTOFResponse().GetNmomBins();
2a258f40	125	SetTOFResponse();
5b4ed716	126
2a258f40	127	fT0TOF = new AliTOFT0v1(fPIDesd);
8f589502	128
8f589502	129	}
5b4ed716	130
8f589502	131	//____________________________________________________________________________
536031f2	132	AliTOFT0maker::~AliTOFT0maker()
	133	{
	134	// dtor
5b4ed716	135
	136	delete fT0TOF;
	137	if (!fExternalPIDFlag) delete fPIDesd;
536031f2	138	}
536031f2	139	//____________________________________________________________________________
5b4ed716	140	Double_t* AliTOFT0maker::ComputeT0TOF(AliESDEvent *esd,Double_t t0time,Double_t t0sigma){
8f589502	141	//
	142	// Remake TOF PID probabilities
	143	//
	144
2a258f40	145	Double_t t0tof[6];
536031f2	146
03bd764d	147	if(fKmask) ApplyMask(esd);
03bd764d	148
2a258f40	149	Double_t t0fill = 0.;
	150
	151	fPIDesd->GetTOFResponse().ResetT0info();
	152
5b4ed716	153	/* get T0 spread from TOFcalib if available otherwise use default value */
	154	if (fTOFcalib && esd) {
	155	AliTOFRunParams *runParams = fTOFcalib->GetRunParams();
	156	if (runParams && runParams->GetTimestamp(0) != 0) {
	157	Float_t t0spread = runParams->EvalT0Spread(esd->GetTimeStamp());
2a258f40	158	if(fT0spreadExt > 0) SetT0FillWidth(fT0spreadExt);
	159	else{
	160	SetT0FillWidth(t0spread);
	161	t0fill = fT0fillExt;
	162	}
	163	}
	164	else{
90beec49	165	if(fT0spreadExt > 0) SetT0FillWidth(fT0spreadExt);
2a258f40	166	t0fill = fT0fillExt;
5b4ed716	167	}
536031f2	168	}
03bd764d	169
bf40b7fa	170	Float_t thrGood = TMath::Max(Float_t(500.),fT0width*3);
bf40b7fa	171
5b4ed716	172	fT0TOF->Init(esd);
5b4ed716	173	AliTOFT0v1* t0maker= fT0TOF;
5b4ed716	174
	175	t0maker->DefineT0("all",1.5,3.0);
	176	t0tof[0] = t0maker->GetResult(0);
	177	t0tof[1] = t0maker->GetResult(1);
	178	t0tof[2] = t0maker->GetResult(2);
	179	t0tof[3] = t0maker->GetResult(3);
2a258f40	180	t0tof[4] = t0maker->GetResult(4);
2a258f40	181	t0tof[5] = t0maker->GetResult(5);
536031f2	182
8f589502	183	Float_t lT0Current=0.;
536031f2	184	fT0sigma=1000;
536031f2	185
03bd764d	186	// Int_t nrun = esd->GetRunNumber();
5b4ed716	187
03bd764d	188	t0time += t0fill;
8f589502	189
5b4ed716	190	Float_t sigmaFill = fT0width;
	191
	192	if(sigmaFill < 20) sigmaFill = 140;
8f589502	193
03bd764d	194	fCalculated[0]=-1000*t0tof[0]; // best t0
	195	fCalculated[1]=1000*t0tof[1]; // sigma best t0
	196	fCalculated[2] = t0fill; //t0 fill
	197	fCalculated[3] = t0tof[2]; // n TOF tracks
	198	fCalculated[4]=-1000*t0tof[0]; // TOF t0
	199	fCalculated[5]=1000*t0tof[1]; // TOF t0 sigma
	200	fCalculated[6]=sigmaFill; // sigma t0 fill
	201	fCalculated[7] = t0tof[3]; // n TOF tracks used for T0
	202
bf40b7fa	203	if(fCalculated[7] > 30) thrGood = 10000000;
bf40b7fa	204
2a258f40	205	//statistics
	206	fCalculated[8] = t0tof[4]; // real time in s
	207	fCalculated[9] = t0tof[5]; // cpu time in s
	208
bf40b7fa	209	if(fCalculated[1] < sigmaFill && TMath::Abs(fCalculated[0] - t0fill) < thrGood && fCalculated[1] < fTimeResolution*1.2){
6a4e212e	210	fT0sigma=fCalculated[1];
6a4e212e	211	lT0Current=fCalculated[0];
536031f2	212	}
03bd764d	213	else{
	214	fCalculated[4] = t0fill;
	215	fCalculated[5] = sigmaFill;
	216	}
	217
5b4ed716	218	if(fCalculated[1] < 1 \|\| fT0sigma > sigmaFill \|\| fCalculated[1] > fTimeResolution* 1.2){
03bd764d	219	fT0sigma =1000;
	220	fCalculated[4] = t0fill;
	221	fCalculated[5] = sigmaFill;
	222	}
536031f2	223
	224	if(t0sigma < 1000){
	225	if(fT0sigma < 1000){
	226	Double_t w1 = 1./t0sigma/t0sigma;
6a4e212e	227	Double_t w2 = 1./fCalculated[1]/fCalculated[1];
536031f2	228
	229	Double_t wtot = w1+w2;
	230
6a4e212e	231	lT0Current = (w1t0time + w2fCalculated[0]) / wtot;
536031f2	232	fT0sigma = TMath::Sqrt(1./wtot);
	233	}
	234	else{
8f589502	235	lT0Current=t0time;
536031f2	236	fT0sigma=t0sigma;
	237	}
	238	}
	239
bf40b7fa	240	if(fT0sigma < sigmaFill && TMath::Abs(lT0Current - t0fill) < thrGood){
03bd764d	241	fCalculated[1]=fT0sigma;
	242	fCalculated[0]=lT0Current;
	243	}
	244
	245	if(fT0sigma >= 1000 \|\| fNoTOFT0){
8f589502	246	lT0Current = t0fill;
03bd764d	247	fT0sigma = sigmaFill;
8f589502	248
6a4e212e	249	fCalculated[0] = t0fill;
03bd764d	250	fCalculated[1] = sigmaFill;
536031f2	251	}
536031f2	252
5b4ed716	253	// T0 pt bin
2a258f40	254	if(fCalculated[7] < 100){
	255	for(Int_t i=0;i<fNmomBins;i++){
	256	t0maker->DefineT0("all",fPIDesd->GetTOFResponse().GetMinMom(i),fPIDesd->GetTOFResponse().GetMaxMom(i));
	257	t0tof[0] = t0maker->GetResult(0);
	258	t0tof[1] = t0maker->GetResult(1);
	259	t0tof[2] = t0maker->GetResult(2);
	260	t0tof[3] = t0maker->GetResult(3);
	261
	262
	263	Float_t t0bin =-1000*t0tof[0]; // best t0
	264	Float_t t0binRes =1000*t0tof[1]; // sigma best t0
	265
bf40b7fa	266	if(t0binRes < sigmaFill && t0binRes < fTimeResolution * 1.2 && TMath::Abs(t0bin - t0fill) < thrGood){
2a258f40	267	// Ok T0
	268	if(t0sigma < 1000){
	269	Double_t w1 = 1./t0sigma/t0sigma;
	270	Double_t w2 = 1./t0binRes/t0binRes;
	271
	272	Double_t wtot = w1+w2;
	273
	274	t0bin = (w1t0time + w2t0bin) / wtot;
	275	t0binRes = TMath::Sqrt(1./wtot);
	276	}
	277	}
	278	else{
	279	t0bin = t0fill;
	280	t0binRes = sigmaFill;
	281	if(t0sigma < 1000){
	282	t0bin = t0time;
	283	t0binRes= t0sigma;
	284	}
	285	}
	286	fPIDesd->GetTOFResponse().SetT0bin(i,t0bin);
	287	fPIDesd->GetTOFResponse().SetT0binRes(i,t0binRes);
5b4ed716	288	}
2a258f40	289	}
	290	else{
	291	for(Int_t i=0;i<fNmomBins;i++){
	292	fPIDesd->GetTOFResponse().SetT0bin(i,lT0Current);
	293	fPIDesd->GetTOFResponse().SetT0binRes(i,fT0sigma);
5b4ed716	294	}
5b4ed716	295	}
536031f2	296
6a4e212e	297	return fCalculated;
536031f2	298	}
536031f2	299	//____________________________________________________________________________
5b4ed716	300	Double_t *AliTOFT0maker::GetT0p(Float_t p){// [0]=to -- [1] = sigma T0
2a258f40	301	Int_t i=fPIDesd->GetTOFResponse().GetMomBin(p);
03bd764d	302
2a258f40	303	fT0cur[0] = fPIDesd->GetTOFResponse().GetT0bin(i);
	304	fT0cur[1] = fPIDesd->GetTOFResponse().GetT0binRes(i);
	305
5b4ed716	306	return fT0cur;
536031f2	307	}
536031f2	308	//____________________________________________________________________________
5b4ed716	309	void AliTOFT0maker::SetTOFResponse(){
2a258f40	310	fPIDesd->GetTOFResponse().SetTimeResolution(fTimeResolution);
5b4ed716	311	}
	312	//____________________________________________________________________________
	313	Float_t AliTOFT0maker::GetExpectedSigma(Float_t mom, Float_t tof, Float_t mass){
5b4ed716	314	Float_t sigma = fPIDesd->GetTOFResponse().GetExpectedSigma(mom,tof,mass);
8f589502	315
5b4ed716	316	return sigma;
536031f2	317	}
536031f2	318	//____________________________________________________________________________
5b4ed716	319	void AliTOFT0maker::ApplyT0TOF(AliESDEvent *esd){
8f589502	320	//
5b4ed716	321	// Recalculate TOF PID probabilities
8f589502	322	//
8f589502	323
90beec49	324	// subtruct t0 for each track
90beec49	325	Int_t ntracks = esd->GetNumberOfTracks();
536031f2	326
90beec49	327	while (ntracks--) {
90beec49	328	AliESDtrack *t=esd->GetTrack(ntracks);
03bd764d	329
90beec49	330	if ((t->GetStatus()&AliESDtrack::kTOFout)==0) continue;
5b4ed716	331
90beec49	332	Double_t time=t->GetTOFsignal();
	333	Float_t p = t->GetP();
	334
	335	Double_t *t0=GetT0p(p);
	336	time -= t0[0];
	337	t->SetTOFsignal(time);
	338	}
	339
	340	for(Int_t i=0;i<fNmomBins;i++){
	341	fPIDesd->GetTOFResponse().SetT0bin(i,0.0);
	342	}
	343
5b4ed716	344	//
536031f2	345	}
03bd764d	346	//____________________________________________________________________________
	347	void AliTOFT0maker::LoadChannelMap(char *filename){
	348	// Load the histo with the channel off map
	349	TFile *f= new TFile(filename);
	350	if(!f){
	351	printf("Cannot open the channel map file (%s)\n",filename);
	352	return;
	353	}
	354
	355	fHmapChannel = (TH1F *) f->Get("hChEnabled");
	356
	357	if(!fHmapChannel){
	358	printf("Cannot laod the channel map histo (from %s)\n",filename);
	359	return;
	360	}
	361
	362	}
	363	//____________________________________________________________________________
	364	void AliTOFT0maker::ApplyMask(AliESDEvent * const esd){
	365	// Switch off the disable channel
	366	if(!fHmapChannel){
	367	printf("Channel Map is not available\n");
	368	return;
	369	}
	370
	371	Int_t ntracks = esd->GetNumberOfTracks();
	372
	373	while (ntracks--) {
	374	AliESDtrack *t=esd->GetTrack(ntracks);
	375
	376	if ((t->GetStatus()&AliESDtrack::kTOFout)==0) continue;
	377
	378	Int_t chan = t->GetTOFCalChannel();
	379
	380	if(fHmapChannel->GetBinContent(chan) < 0.01){
	381	t->ResetStatus(AliESDtrack::kTOFout);
	382	}
	383	}
	384	}
	385
5b4ed716	386	Float_t
	387	AliTOFT0maker::TuneForMC(AliESDEvent *esd){ // return true T0 event
	388	//
	389	// tune for MC data
	390	//
	391
	392	Float_t TOFtimeResolutionDefault=80;
	393
	394	Float_t t0 = gRandom->Gaus(0.,fT0width);
	395
	396	Float_t extraSmearing = 0;
	397
	398	if(fTimeResolution > TOFtimeResolutionDefault){
	399	extraSmearing = TMath::Sqrt(fTimeResolutionfTimeResolution - TOFtimeResolutionDefaultTOFtimeResolutionDefault);
	400	}
	401
	402	// subtruct t0 for each track
	403	Int_t ntracks = esd->GetNumberOfTracks();
	404
	405	while (ntracks--) {
	406	AliESDtrack *t=esd->GetTrack(ntracks);
	407
	408	if ((t->GetStatus()&AliESDtrack::kTOFout)==0) continue;
	409
	410	/* check if channel is enabled */
	411	if (fTOFcalib && !fTOFcalib->IsChannelEnabled(t->GetTOFCalChannel())) {
	412	/* reset TOF status */
	413	t->ResetStatus(AliESDtrack::kTOFin);
	414	t->ResetStatus(AliESDtrack::kTOFout);
90beec49	415	t->ResetStatus(AliESDtrack::kTOFmismatch);
5b4ed716	416	t->ResetStatus(AliESDtrack::kTOFpid);
	417	}
	418
	419	Double_t time=t->GetTOFsignal();
	420
	421	time += t0;
	422
	423	if(extraSmearing>0){
	424	Float_t smearing = gRandom->Gaus(0.,extraSmearing);
	425	time += smearing;
	426	}
	427
	428	t->SetTOFsignal(time);
	429	}
	430	//
	431	return t0;
	432	}
f858b00e	433	//_________________________________________________________________________
	434	void AliTOFT0maker::WriteInESD(AliESDEvent *esd){
	435	//
	436	// Write t0Gen, t0ResGen, nt0;
	437	// t0resESD[0:nt0], it0ESD[0:nt0]
	438	// in the AliESDEvent
	439	//
	440	Int_t nMomBins = fPIDesd->GetTOFResponse().GetNmomBins();
	441
	442	Int_t nt0=0;
	443	Float_t *t0 = new Float_t[nMomBins];
	444	Float_t *t0res = new Float_t[nMomBins];
	445	Int_t *multT0 = new Int_t[nMomBins];
	446
	447	for(Int_t i=0;i<nMomBins;i++){
	448	// printf("START %i) %f %f\n",i,fT0event[i],fT0resolution[i]);
	449	multT0[i]=0;
	450	Bool_t kNewT0=kTRUE;
	451	for(Int_t j=0;j < nt0;j++){
	452	if(TMath::Abs(fPIDesd->GetTOFResponse().GetT0bin(i) - t0[j])<0.1){
	453	kNewT0=kFALSE;
	454	multT0[j]++;
	455	j=nMomBins*10;
	456	}
	457	}
	458	if(kNewT0){
	459	t0[nt0]=fPIDesd->GetTOFResponse().GetT0bin(i);
	460	t0res[nt0]=fPIDesd->GetTOFResponse().GetT0binRes(i);
	461	nt0++;
	462	}
	463	}
	464
	465	Int_t iMultT0=0,nmult=0;
	466	for(Int_t j=0;j < nt0;j++){ // find the most frequent
	467	if(multT0[j] > nmult){
	468	iMultT0 = j;
	469	nmult = multT0[j];
	470	}
	471	}
	472
	473	Float_t *t0ESD = new Float_t[nMomBins];
	474	Float_t *t0resESD = new Float_t[nMomBins];
	475	Int_t *it0ESD = new Int_t[nMomBins];
	476
	477	Float_t t0Gen,t0ResGen;
	478	t0Gen = t0[iMultT0];
	479	t0ResGen = t0res[iMultT0];
	480	nt0=0;
	481	// printf("T0 to ESD\n%f %f\n",t0Gen,t0ResGen);
	482	for(Int_t i=0;i<nMomBins;i++){
	483	if(TMath::Abs(fPIDesd->GetTOFResponse().GetT0bin(i) - t0Gen)>0.1){
	484	t0ESD[nt0]=fPIDesd->GetTOFResponse().GetT0bin(i);
	485	t0resESD[nt0]=fPIDesd->GetTOFResponse().GetT0binRes(i);
	486	it0ESD[nt0]=i;
	487	// printf("%i) %f %f %i\n",nt0,t0ESD[nt0],t0resESD[nt0],it0ESD[nt0]);
	488	nt0++;
	489	}
	490	}
	491
	492	// Write t0Gen,t0ResGen; nt0; t0resESD[0:nt0],it0ESD[0:nt0] in the AliESDEvent
	493
	494	AliTOFHeader *tofHeader =
	495	new AliTOFHeader(t0Gen,t0ResGen,nt0,
c85a1b24	496	t0ESD,t0resESD,it0ESD,fTimeResolution,fT0width);
f858b00e	497
	498	esd->SetTOFHeader(tofHeader);
	499
c85a1b24	500	AliDebug(1,Form("resTOF=%f T0spread=%f t0Gen=%f t0resGen=%f",fTimeResolution,fT0width,t0Gen,t0ResGen));
c85a1b24	501	AliDebug(1,Form("%d ",nt0));
f858b00e	502	for (Int_t ii=0; ii<nt0; ii++)
c85a1b24	503	AliDebug(1,Form("pBin=%d t0val=%f t0res=%f",it0ESD[ii],t0ESD[ii],t0resESD[ii]));
f858b00e	504
	505	delete[] t0;
	506	t0 = NULL;
	507	delete[] t0res;
	508	t0res = NULL;
	509	delete[] multT0;
	510	multT0 = NULL;
	511	delete[] t0ESD;
	512	t0ESD = NULL;
	513	delete[] t0resESD;
	514	t0resESD = NULL;
	515	delete[] it0ESD;
	516	it0ESD = NULL;
	517
	518	}