[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;
    }
  }

  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

  //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) < 500 && 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) < 500){
    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) < 500){
	// 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
5b4ed716	170	fT0TOF->Init(esd);
5b4ed716	171	AliTOFT0v1* t0maker= fT0TOF;
5b4ed716	172
	173	t0maker->DefineT0("all",1.5,3.0);
	174	t0tof[0] = t0maker->GetResult(0);
	175	t0tof[1] = t0maker->GetResult(1);
	176	t0tof[2] = t0maker->GetResult(2);
	177	t0tof[3] = t0maker->GetResult(3);
2a258f40	178	t0tof[4] = t0maker->GetResult(4);
2a258f40	179	t0tof[5] = t0maker->GetResult(5);
536031f2	180
8f589502	181	Float_t lT0Current=0.;
536031f2	182	fT0sigma=1000;
536031f2	183
03bd764d	184	// Int_t nrun = esd->GetRunNumber();
5b4ed716	185
03bd764d	186	t0time += t0fill;
8f589502	187
5b4ed716	188	Float_t sigmaFill = fT0width;
	189
	190	if(sigmaFill < 20) sigmaFill = 140;
8f589502	191
03bd764d	192	fCalculated[0]=-1000*t0tof[0]; // best t0
	193	fCalculated[1]=1000*t0tof[1]; // sigma best t0
	194	fCalculated[2] = t0fill; //t0 fill
	195	fCalculated[3] = t0tof[2]; // n TOF tracks
	196	fCalculated[4]=-1000*t0tof[0]; // TOF t0
	197	fCalculated[5]=1000*t0tof[1]; // TOF t0 sigma
	198	fCalculated[6]=sigmaFill; // sigma t0 fill
	199	fCalculated[7] = t0tof[3]; // n TOF tracks used for T0
	200
2a258f40	201	//statistics
	202	fCalculated[8] = t0tof[4]; // real time in s
	203	fCalculated[9] = t0tof[5]; // cpu time in s
	204
5b4ed716	205	if(fCalculated[1] < sigmaFill && TMath::Abs(fCalculated[0] - t0fill) < 500 && fCalculated[1] < fTimeResolution*1.2){
6a4e212e	206	fT0sigma=fCalculated[1];
6a4e212e	207	lT0Current=fCalculated[0];
536031f2	208	}
03bd764d	209	else{
	210	fCalculated[4] = t0fill;
	211	fCalculated[5] = sigmaFill;
	212	}
	213
5b4ed716	214	if(fCalculated[1] < 1 \|\| fT0sigma > sigmaFill \|\| fCalculated[1] > fTimeResolution* 1.2){
03bd764d	215	fT0sigma =1000;
	216	fCalculated[4] = t0fill;
	217	fCalculated[5] = sigmaFill;
	218	}
536031f2	219
	220	if(t0sigma < 1000){
	221	if(fT0sigma < 1000){
	222	Double_t w1 = 1./t0sigma/t0sigma;
6a4e212e	223	Double_t w2 = 1./fCalculated[1]/fCalculated[1];
536031f2	224
	225	Double_t wtot = w1+w2;
	226
6a4e212e	227	lT0Current = (w1t0time + w2fCalculated[0]) / wtot;
536031f2	228	fT0sigma = TMath::Sqrt(1./wtot);
	229	}
	230	else{
8f589502	231	lT0Current=t0time;
536031f2	232	fT0sigma=t0sigma;
	233	}
	234	}
	235
03bd764d	236	if(fT0sigma < sigmaFill && TMath::Abs(lT0Current - t0fill) < 500){
	237	fCalculated[1]=fT0sigma;
	238	fCalculated[0]=lT0Current;
	239	}
	240
	241	if(fT0sigma >= 1000 \|\| fNoTOFT0){
8f589502	242	lT0Current = t0fill;
03bd764d	243	fT0sigma = sigmaFill;
8f589502	244
6a4e212e	245	fCalculated[0] = t0fill;
03bd764d	246	fCalculated[1] = sigmaFill;
536031f2	247	}
536031f2	248
5b4ed716	249	// T0 pt bin
2a258f40	250	if(fCalculated[7] < 100){
	251	for(Int_t i=0;i<fNmomBins;i++){
	252	t0maker->DefineT0("all",fPIDesd->GetTOFResponse().GetMinMom(i),fPIDesd->GetTOFResponse().GetMaxMom(i));
	253	t0tof[0] = t0maker->GetResult(0);
	254	t0tof[1] = t0maker->GetResult(1);
	255	t0tof[2] = t0maker->GetResult(2);
	256	t0tof[3] = t0maker->GetResult(3);
	257
	258
	259	Float_t t0bin =-1000*t0tof[0]; // best t0
	260	Float_t t0binRes =1000*t0tof[1]; // sigma best t0
	261
	262	if(t0binRes < sigmaFill && t0binRes < fTimeResolution * 1.2 && TMath::Abs(t0bin - t0fill) < 500){
	263	// Ok T0
	264	if(t0sigma < 1000){
	265	Double_t w1 = 1./t0sigma/t0sigma;
	266	Double_t w2 = 1./t0binRes/t0binRes;
	267
	268	Double_t wtot = w1+w2;
	269
	270	t0bin = (w1t0time + w2t0bin) / wtot;
	271	t0binRes = TMath::Sqrt(1./wtot);
	272	}
	273	}
	274	else{
	275	t0bin = t0fill;
	276	t0binRes = sigmaFill;
	277	if(t0sigma < 1000){
	278	t0bin = t0time;
	279	t0binRes= t0sigma;
	280	}
	281	}
	282	fPIDesd->GetTOFResponse().SetT0bin(i,t0bin);
	283	fPIDesd->GetTOFResponse().SetT0binRes(i,t0binRes);
5b4ed716	284	}
2a258f40	285	}
	286	else{
	287	for(Int_t i=0;i<fNmomBins;i++){
	288	fPIDesd->GetTOFResponse().SetT0bin(i,lT0Current);
	289	fPIDesd->GetTOFResponse().SetT0binRes(i,fT0sigma);
5b4ed716	290	}
5b4ed716	291	}
536031f2	292
6a4e212e	293	return fCalculated;
536031f2	294	}
536031f2	295	//____________________________________________________________________________
5b4ed716	296	Double_t *AliTOFT0maker::GetT0p(Float_t p){// [0]=to -- [1] = sigma T0
2a258f40	297	Int_t i=fPIDesd->GetTOFResponse().GetMomBin(p);
03bd764d	298
2a258f40	299	fT0cur[0] = fPIDesd->GetTOFResponse().GetT0bin(i);
	300	fT0cur[1] = fPIDesd->GetTOFResponse().GetT0binRes(i);
	301
5b4ed716	302	return fT0cur;
536031f2	303	}
536031f2	304	//____________________________________________________________________________
5b4ed716	305	void AliTOFT0maker::SetTOFResponse(){
2a258f40	306	fPIDesd->GetTOFResponse().SetTimeResolution(fTimeResolution);
5b4ed716	307	}
	308	//____________________________________________________________________________
	309	Float_t AliTOFT0maker::GetExpectedSigma(Float_t mom, Float_t tof, Float_t mass){
5b4ed716	310	Float_t sigma = fPIDesd->GetTOFResponse().GetExpectedSigma(mom,tof,mass);
8f589502	311
5b4ed716	312	return sigma;
536031f2	313	}
536031f2	314	//____________________________________________________________________________
5b4ed716	315	void AliTOFT0maker::ApplyT0TOF(AliESDEvent *esd){
8f589502	316	//
5b4ed716	317	// Recalculate TOF PID probabilities
8f589502	318	//
8f589502	319
90beec49	320	// subtruct t0 for each track
90beec49	321	Int_t ntracks = esd->GetNumberOfTracks();
536031f2	322
90beec49	323	while (ntracks--) {
90beec49	324	AliESDtrack *t=esd->GetTrack(ntracks);
03bd764d	325
90beec49	326	if ((t->GetStatus()&AliESDtrack::kTOFout)==0) continue;
5b4ed716	327
90beec49	328	Double_t time=t->GetTOFsignal();
	329	Float_t p = t->GetP();
	330
	331	Double_t *t0=GetT0p(p);
	332	time -= t0[0];
	333	t->SetTOFsignal(time);
	334	}
	335
	336	for(Int_t i=0;i<fNmomBins;i++){
	337	fPIDesd->GetTOFResponse().SetT0bin(i,0.0);
	338	}
	339
5b4ed716	340	//
536031f2	341	}
03bd764d	342	//____________________________________________________________________________
	343	void AliTOFT0maker::LoadChannelMap(char *filename){
	344	// Load the histo with the channel off map
	345	TFile *f= new TFile(filename);
	346	if(!f){
	347	printf("Cannot open the channel map file (%s)\n",filename);
	348	return;
	349	}
	350
	351	fHmapChannel = (TH1F *) f->Get("hChEnabled");
	352
	353	if(!fHmapChannel){
	354	printf("Cannot laod the channel map histo (from %s)\n",filename);
	355	return;
	356	}
	357
	358	}
	359	//____________________________________________________________________________
	360	void AliTOFT0maker::ApplyMask(AliESDEvent * const esd){
	361	// Switch off the disable channel
	362	if(!fHmapChannel){
	363	printf("Channel Map is not available\n");
	364	return;
	365	}
	366
	367	Int_t ntracks = esd->GetNumberOfTracks();
	368
	369	while (ntracks--) {
	370	AliESDtrack *t=esd->GetTrack(ntracks);
	371
	372	if ((t->GetStatus()&AliESDtrack::kTOFout)==0) continue;
	373
	374	Int_t chan = t->GetTOFCalChannel();
	375
	376	if(fHmapChannel->GetBinContent(chan) < 0.01){
	377	t->ResetStatus(AliESDtrack::kTOFout);
	378	}
	379	}
	380	}
	381
5b4ed716	382	Float_t
	383	AliTOFT0maker::TuneForMC(AliESDEvent *esd){ // return true T0 event
	384	//
	385	// tune for MC data
	386	//
	387
	388	Float_t TOFtimeResolutionDefault=80;
	389
	390	Float_t t0 = gRandom->Gaus(0.,fT0width);
	391
	392	Float_t extraSmearing = 0;
	393
	394	if(fTimeResolution > TOFtimeResolutionDefault){
	395	extraSmearing = TMath::Sqrt(fTimeResolutionfTimeResolution - TOFtimeResolutionDefaultTOFtimeResolutionDefault);
	396	}
	397
	398	// subtruct t0 for each track
	399	Int_t ntracks = esd->GetNumberOfTracks();
	400
	401	while (ntracks--) {
	402	AliESDtrack *t=esd->GetTrack(ntracks);
	403
	404	if ((t->GetStatus()&AliESDtrack::kTOFout)==0) continue;
	405
	406	/* check if channel is enabled */
	407	if (fTOFcalib && !fTOFcalib->IsChannelEnabled(t->GetTOFCalChannel())) {
	408	/* reset TOF status */
	409	t->ResetStatus(AliESDtrack::kTOFin);
	410	t->ResetStatus(AliESDtrack::kTOFout);
90beec49	411	t->ResetStatus(AliESDtrack::kTOFmismatch);
5b4ed716	412	t->ResetStatus(AliESDtrack::kTOFpid);
	413	}
	414
	415	Double_t time=t->GetTOFsignal();
	416
	417	time += t0;
	418
	419	if(extraSmearing>0){
	420	Float_t smearing = gRandom->Gaus(0.,extraSmearing);
	421	time += smearing;
	422	}
	423
	424	t->SetTOFsignal(time);
	425	}
	426	//
	427	return t0;
	428	}
f858b00e	429	//_________________________________________________________________________
	430	void AliTOFT0maker::WriteInESD(AliESDEvent *esd){
	431	//
	432	// Write t0Gen, t0ResGen, nt0;
	433	// t0resESD[0:nt0], it0ESD[0:nt0]
	434	// in the AliESDEvent
	435	//
	436	Int_t nMomBins = fPIDesd->GetTOFResponse().GetNmomBins();
	437
	438	Int_t nt0=0;
	439	Float_t *t0 = new Float_t[nMomBins];
	440	Float_t *t0res = new Float_t[nMomBins];
	441	Int_t *multT0 = new Int_t[nMomBins];
	442
	443	for(Int_t i=0;i<nMomBins;i++){
	444	// printf("START %i) %f %f\n",i,fT0event[i],fT0resolution[i]);
	445	multT0[i]=0;
	446	Bool_t kNewT0=kTRUE;
	447	for(Int_t j=0;j < nt0;j++){
	448	if(TMath::Abs(fPIDesd->GetTOFResponse().GetT0bin(i) - t0[j])<0.1){
	449	kNewT0=kFALSE;
	450	multT0[j]++;
	451	j=nMomBins*10;
	452	}
	453	}
	454	if(kNewT0){
	455	t0[nt0]=fPIDesd->GetTOFResponse().GetT0bin(i);
	456	t0res[nt0]=fPIDesd->GetTOFResponse().GetT0binRes(i);
	457	nt0++;
	458	}
	459	}
	460
	461	Int_t iMultT0=0,nmult=0;
	462	for(Int_t j=0;j < nt0;j++){ // find the most frequent
	463	if(multT0[j] > nmult){
	464	iMultT0 = j;
	465	nmult = multT0[j];
	466	}
	467	}
	468
	469	Float_t *t0ESD = new Float_t[nMomBins];
	470	Float_t *t0resESD = new Float_t[nMomBins];
	471	Int_t *it0ESD = new Int_t[nMomBins];
	472
	473	Float_t t0Gen,t0ResGen;
	474	t0Gen = t0[iMultT0];
	475	t0ResGen = t0res[iMultT0];
	476	nt0=0;
	477	// printf("T0 to ESD\n%f %f\n",t0Gen,t0ResGen);
	478	for(Int_t i=0;i<nMomBins;i++){
	479	if(TMath::Abs(fPIDesd->GetTOFResponse().GetT0bin(i) - t0Gen)>0.1){
	480	t0ESD[nt0]=fPIDesd->GetTOFResponse().GetT0bin(i);
	481	t0resESD[nt0]=fPIDesd->GetTOFResponse().GetT0binRes(i);
	482	it0ESD[nt0]=i;
	483	// printf("%i) %f %f %i\n",nt0,t0ESD[nt0],t0resESD[nt0],it0ESD[nt0]);
	484	nt0++;
	485	}
	486	}
	487
	488	// Write t0Gen,t0ResGen; nt0; t0resESD[0:nt0],it0ESD[0:nt0] in the AliESDEvent
	489
	490	AliTOFHeader *tofHeader =
	491	new AliTOFHeader(t0Gen,t0ResGen,nt0,
c85a1b24	492	t0ESD,t0resESD,it0ESD,fTimeResolution,fT0width);
f858b00e	493
	494	esd->SetTOFHeader(tofHeader);
	495
c85a1b24	496	AliDebug(1,Form("resTOF=%f T0spread=%f t0Gen=%f t0resGen=%f",fTimeResolution,fT0width,t0Gen,t0ResGen));
c85a1b24	497	AliDebug(1,Form("%d ",nt0));
f858b00e	498	for (Int_t ii=0; ii<nt0; ii++)
c85a1b24	499	AliDebug(1,Form("pBin=%d t0val=%f t0res=%f",it0ESD[ii],t0ESD[ii],t0resESD[ii]));
f858b00e	500
	501	delete[] t0;
	502	t0 = NULL;
	503	delete[] t0res;
	504	t0res = NULL;
	505	delete[] multT0;
	506	multT0 = NULL;
	507	delete[] t0ESD;
	508	t0ESD = NULL;
	509	delete[] t0resESD;
	510	t0resESD = NULL;
	511	delete[] it0ESD;
	512	it0ESD = NULL;
	513
	514	}