[u/mrichter/AliRoot.git] / PWGLF / RESONANCES / AliRsnValueDaughter.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.                  *
 **************************************************************************/

////////////////////////////////////////////////////////////////////////////////
//
//  This class contains all code which is used to compute any of the values
//  which can be of interest within a resonance analysis. Besides the obvious
//  invariant mass, it allows to compute other utility values on all possible
//  targets, in order to allow a wide spectrum of binning and checks.
//  When needed, this object can also define a binning in the variable which
//  it is required to compute, which is used for initializing axes of output
//  histograms (see AliRsnFunction).
//  The value computation requires this object to be passed the object whose
//  informations will be used. This object can be of any allowed input type
//  (track, Daughter, event), then this class must inherit from AliRsnTarget.
//  Then, when value computation is attempted, a check on target type is done
//  and computation is successful only if expected target matches that of the
//  passed object.
//  In some cases, the value computation can require a support external object,
//  which must then be passed to this class. It can be of any type inheriting
//  from TObject.
//
//  authors: A. Pulvirenti (alberto.pulvirenti@ct.infn.it)
//           M. Vala (martin.vala@cern.ch)
//
////////////////////////////////////////////////////////////////////////////////

#include <Riostream.h>
#include "AliVVertex.h"
#include "AliMultiplicity.h"
#include "AliESDtrackCuts.h"
#include "AliESDpid.h"
#include "AliAODPid.h"
#include "AliCentrality.h"
#include "AliESDUtils.h"
#include "AliPIDResponse.h"

#include "AliRsnEvent.h"
#include "AliRsnDaughter.h"
#include "AliRsnMother.h"
#include "AliRsnDaughterDef.h"
#include "AliRsnDaughterDef.h"

#include "AliRsnValueDaughter.h"

ClassImp(AliRsnValueDaughter)

//_____________________________________________________________________________
AliRsnValueDaughter::AliRsnValueDaughter(const char *name, EType type) :
   AliRsnValue(name, AliRsnTarget::kDaughter),
   fType(type)
{
//
// Constructor
//
}

//_____________________________________________________________________________
AliRsnValueDaughter::AliRsnValueDaughter(const AliRsnValueDaughter &copy) :
   AliRsnValue(copy),
   fType(copy.fType)
{
//
// Copy constructor
//
}

//_____________________________________________________________________________
AliRsnValueDaughter &AliRsnValueDaughter::operator=(const AliRsnValueDaughter &copy)
{
//
// Assignment operator.
// Works like copy constructor.
//

   AliRsnValue::operator=(copy);
   if (this == &copy)
      return *this;
   fType = copy.fType;

   return (*this);
}

//_____________________________________________________________________________
const char *AliRsnValueDaughter::GetTypeName() const
{
//
// This method returns a string to give a name to each possible
// computation value.
//

   switch (fType) {
      case kP:           return "SingleTrackPtot";
      case kPt:          return "SingleTrackPt";
      case kPtpc:        return "SingleTrackPtpc";
      case kEta:         return "SingleTrackEta";
      case kMass:        return "SingleTrackMass";
      case kITSsignal:   return "SingleTrackITSsignal";
      case kTPCsignal:   return "SingleTrackTPCsignal";
      case kTOFsignal:   return "SingleTrackTOFsignal";
      case kTPCnsigmaPi: return "SingleTrackTPCnsigmaPion";
      case kTPCnsigmaK:  return "SingleTrackTPCnsigmaKaon";
      case kTPCnsigmaP:  return "SingleTrackTPCnsigmaProton";
      case kTOFnsigmaPi: return "SingleTrackTOFnsigmaPion";
      case kTOFnsigmaK:  return "SingleTrackTOFnsigmaKaon";
      case kTOFnsigmaP:  return "SingleTrackTOFnsigmaProton";
      case kCharge:      return "SingleTrackCharge";
      case kPhi:         return "SingleTrackPhi";
      case kPhiOuterTPC: return "SingleTrackPhiOuterTPC";
      default:           return "Undefined";
   }
}

//_____________________________________________________________________________
Bool_t AliRsnValueDaughter::Eval(TObject *object)
{
//
// Evaluation of the required value.
// Checks that the passed object is of the right type
// and if this check is successful, computes the required value.
// The output of the function tells if computing was successful,
// and the values must be taken with GetValue().
//

   // coherence check, which also casts object
   // to AliRsnTarget data members and returns kFALSE
   // in case the object is NULL
   if (!TargetOK(object)) return kFALSE;

   // set a reference to the mother momentum
   AliVParticle   *ref   = fDaughter->GetRef();
   AliVParticle   *refMC = fDaughter->GetRefMC();
   AliVTrack      *track = fDaughter->Ref2Vtrack();
   if (fUseMCInfo && !refMC) {
      AliError("No MC");
      return kFALSE;
   }
   if (!fUseMCInfo && !ref) {
      AliError("No DATA");
      return kFALSE;
   }

   // compute value depending on types in the enumeration
   // if the type does not match any available choice, or if
   // the computation is not doable due to any problem
   // (not initialized support object, wrong values, risk of floating point errors)
   // the method returng kFALSE and sets the computed value to a meaningless number
   switch (fType) {
      case kP:
         fComputedValue = (fUseMCInfo ? refMC->P() : ref->P());
         return kTRUE;
      case kPt:
         fComputedValue = (fUseMCInfo ? refMC->Pt() : ref->Pt());
         return kTRUE;
      case kEta:
         fComputedValue = (fUseMCInfo ? refMC->Eta() : ref->Eta());
         return kTRUE;
      case kMass:
         fComputedValue = (fUseMCInfo ? refMC->M() : ref->M());
         return kTRUE;
      case kPtpc:
         if (track) {
            fComputedValue = track->GetTPCmomentum();
            return kTRUE;
         } else {
            AliWarning("Cannot get TPC momentum for non-track object");
            fComputedValue = 0.0;
            return kFALSE;
         }
      case kITSsignal:
         if (track) {
            fComputedValue = track->GetITSsignal();
            return kTRUE;
         } else {
            AliWarning("Cannot get ITS signal for non-track object");
            fComputedValue = 0.0;
            return kFALSE;
         }
      case kTPCsignal:
         if (track) {
            fComputedValue = track->GetTPCsignal();
            return kTRUE;
         } else {
            AliWarning("Cannot get TPC signal for non-track object");
            fComputedValue = 0.0;
            return kFALSE;
         }
      case kTOFsignal:
         if (track) {
            fComputedValue = track->GetTOFsignal();
            return kTRUE;
         } else {
            AliWarning("Cannot get TOF signal for non-track object");
            fComputedValue = 0.0;
            return kFALSE;
         }
      case kTPCnsigmaPi:
         if (track) {
            AliPIDResponse *pid = fEvent->GetPIDResponse();
            fComputedValue = pid->NumberOfSigmasTPC(track, AliPID::kPion);
            return kTRUE;
         } else {
            AliWarning("Cannot get TOF signal for non-track object");
            fComputedValue = 0.0;
            return kFALSE;
         }
      case kTPCnsigmaK:
         if (track) {
            AliPIDResponse *pid = fEvent->GetPIDResponse();
            fComputedValue = pid->NumberOfSigmasTPC(track, AliPID::kKaon);
            return kTRUE;
         } else {
            AliWarning("Cannot get TOF signal for non-track object");
            fComputedValue = 0.0;
            return kFALSE;
         }
      case kTPCnsigmaP:
         if (track) {
            AliPIDResponse *pid = fEvent->GetPIDResponse();
            fComputedValue = pid->NumberOfSigmasTPC(track, AliPID::kProton);
            return kTRUE;
         } else {
            AliWarning("Cannot get TOF signal for non-track object");
            fComputedValue = 0.0;
            return kFALSE;
         }
      case kTOFnsigmaPi:
         if (track) {
            AliPIDResponse *pid = fEvent->GetPIDResponse();
            fComputedValue = pid->NumberOfSigmasTOF(track, AliPID::kPion);
            return kTRUE;
         } else {
            AliWarning("Cannot get TOF signal for non-track object");
            fComputedValue = 0.0;
            return kFALSE;
         }
      case kTOFnsigmaK:
         if (track) {
            AliPIDResponse *pid = fEvent->GetPIDResponse();
            fComputedValue = pid->NumberOfSigmasTOF(track, AliPID::kKaon);
            return kTRUE;
         } else {
            AliWarning("Cannot get TOF signal for non-track object");
            fComputedValue = 0.0;
            return kFALSE;
         }
      case kTOFnsigmaP:
         if (track) {
            AliPIDResponse *pid = fEvent->GetPIDResponse();
            fComputedValue = pid->NumberOfSigmasTOF(track, AliPID::kProton);
            return kTRUE;
         } else {
            AliWarning("Cannot get TOF signal for non-track object");
            fComputedValue = 0.0;
            return kFALSE;
         }
      case kNITSclusters:
         if (track) {
            AliESDtrack *trackESD = dynamic_cast<AliESDtrack *>(track);
            if (trackESD) {
               fComputedValue =  trackESD->GetITSclusters(0);
            } else {
               fComputedValue =  ((AliAODTrack *)track)->GetITSNcls();
            }
            return kTRUE;
         } else {
            AliWarning("Cannot get n ITS clusters for non-track object");
            fComputedValue = 0.0;
            return kFALSE;
         }
      case kNTPCclusters:
         if (track) {
            AliESDtrack *trackESD = dynamic_cast<AliESDtrack *>(track);
            if (trackESD) {
               fComputedValue =  trackESD->GetTPCclusters(0);
            } else {
               fComputedValue =  ((AliAODTrack *)track)->GetTPCNcls();
            }
            return kTRUE;
         } else {
            AliWarning("Cannot get n TPC clusters for non-track object");
            fComputedValue = 0.0;
            return kFALSE;
         }
      case kITSchi2:
         if (track) {
            AliESDtrack *trackESD = dynamic_cast<AliESDtrack *>(track);
            if (trackESD) {
               UShort_t nClustersITS = trackESD->GetITSclusters(0);
               fComputedValue =  trackESD->GetITSchi2()/Float_t(nClustersITS);
            } else {
               fComputedValue = ((AliAODTrack *)track)->Chi2perNDF();
            }
            return kTRUE;
         } else {
            AliWarning("Cannot get ITS chi^2 for non-track object");
            fComputedValue = 0.0;
            return kFALSE;
         }
      case kTPCchi2:
         if (track) {
            AliESDtrack *trackESD = dynamic_cast<AliESDtrack *>(track);
            if (trackESD) {
               UShort_t nClustersTPC = trackESD->GetTPCclusters(0);
               fComputedValue =  trackESD->GetTPCchi2()/Float_t(nClustersTPC);
            } else {
               fComputedValue = ((AliAODTrack *)track)->Chi2perNDF();
            }
            return kTRUE;
         } else {
            AliWarning("Cannot get TPC chi^2 for non-track object");
            fComputedValue = 0.0;
            return kFALSE;
         }
      case kDCAXY:
         if (track) {
            AliESDtrack *trackESD = dynamic_cast<AliESDtrack *>(track);
            if (trackESD) {
               Float_t b[2], bCov[3];
               trackESD->GetImpactParameters(b, bCov);
               fComputedValue =  b[0];
            } else {
               Double_t b[2]= {-999,-999}, cov[3];
               AliAODVertex *vertex = fEvent->GetRefAOD()->GetPrimaryVertex();
               if(vertex) {
                  track->PropagateToDCA(vertex, fEvent->GetRefAOD()->GetMagneticField(),kVeryBig, b, cov);
                  fComputedValue = b[0];
               } else {
                  fComputedValue = -999;
               }
            }
            return kTRUE;
         } else {
            AliWarning("Cannot get TPC chi^2 for non-track object");
            fComputedValue = 0.0;
            return kFALSE;
         }
      case kDCAZ:
         if (track) {
            AliESDtrack *trackESD = dynamic_cast<AliESDtrack *>(track);
            if (trackESD) {
               Float_t b[2], bCov[3];
               trackESD->GetImpactParameters(b, bCov);
               fComputedValue =  b[1];
            } else {
               Double_t b[2]= {-999,-999}, cov[3];
               AliAODVertex *vertex = fEvent->GetRefAOD()->GetPrimaryVertex();
               if(vertex) {
                  track->PropagateToDCA(vertex, fEvent->GetRefAOD()->GetMagneticField(),kVeryBig, b, cov);
                  fComputedValue = b[1];
               } else {
                  fComputedValue = -999;
               }

            }
            return kTRUE;
         } else {
            AliWarning("Cannot get TPC chi^2 for non-track object");
            fComputedValue = 0.0;
            return kFALSE;
         }

      case kCharge:
         fComputedValue = (fUseMCInfo ? refMC->Charge() : ref->Charge());
         return kTRUE;
   
      case kPhi:         
	fComputedValue = (fUseMCInfo ? (refMC->Phi()*TMath::RadToDeg()) : (ref->Phi()*TMath::RadToDeg()));	
	return kTRUE;

      case kPhiOuterTPC:    
	if (track) {
	  Double_t pos[3]={0.,0.,0.};
	  Double_t phiOut = -999.0;
	  Double_t radius = 278.;//TPC outer (vessel) = 278 cm, TOF radius (active surf.) = 378 cm;  ref. PPR.1
	  AliExternalTrackParam etp; //thanks to Andrea and Cristina
	  etp.CopyFromVTrack(track);
	  if(etp.GetXYZAt(radius, 5., pos)){
	    phiOut=TMath::ATan2(pos[1],pos[0])*TMath::RadToDeg();
	    if (phiOut<0) phiOut+= (2*TMath::Pi()*TMath::RadToDeg());
	  }
	  fComputedValue = phiOut;	
	} else {
	  AliWarning("Cannot get phi at outer TPC radius for non-track object");
	  fComputedValue = -99.0;
	  return kFALSE;
	}
	return kTRUE;
	
      default:
         AliError(Form("[%s] Invalid value type for this computation", GetName()));
         return kFALSE;
   }
}
Commit	Line	Data
2895972e	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
	16	////////////////////////////////////////////////////////////////////////////////
	17	//
	18	// This class contains all code which is used to compute any of the values
	19	// which can be of interest within a resonance analysis. Besides the obvious
	20	// invariant mass, it allows to compute other utility values on all possible
	21	// targets, in order to allow a wide spectrum of binning and checks.
	22	// When needed, this object can also define a binning in the variable which
	23	// it is required to compute, which is used for initializing axes of output
	24	// histograms (see AliRsnFunction).
	25	// The value computation requires this object to be passed the object whose
	26	// informations will be used. This object can be of any allowed input type
	27	// (track, Daughter, event), then this class must inherit from AliRsnTarget.
	28	// Then, when value computation is attempted, a check on target type is done
	29	// and computation is successful only if expected target matches that of the
	30	// passed object.
	31	// In some cases, the value computation can require a support external object,
	32	// which must then be passed to this class. It can be of any type inheriting
	33	// from TObject.
	34	//
	35	// authors: A. Pulvirenti (alberto.pulvirenti@ct.infn.it)
	36	// M. Vala (martin.vala@cern.ch)
	37	//
	38	////////////////////////////////////////////////////////////////////////////////
	39
b63357a0	40	#include <Riostream.h>
2895972e	41	#include "AliVVertex.h"
	42	#include "AliMultiplicity.h"
	43	#include "AliESDtrackCuts.h"
	44	#include "AliESDpid.h"
	45	#include "AliAODPid.h"
	46	#include "AliCentrality.h"
	47	#include "AliESDUtils.h"
b63357a0	48	#include "AliPIDResponse.h"
2895972e	49
	50	#include "AliRsnEvent.h"
	51	#include "AliRsnDaughter.h"
	52	#include "AliRsnMother.h"
	53	#include "AliRsnDaughterDef.h"
	54	#include "AliRsnDaughterDef.h"
	55
	56	#include "AliRsnValueDaughter.h"
	57
	58	ClassImp(AliRsnValueDaughter)
	59
	60	//_____________________________________________________________________________
	61	AliRsnValueDaughter::AliRsnValueDaughter(const char *name, EType type) :
	62	AliRsnValue(name, AliRsnTarget::kDaughter),
	63	fType(type)
	64	{
	65	//
	66	// Constructor
	67	//
	68	}
	69
	70	//_____________________________________________________________________________
61f275d1	71	AliRsnValueDaughter::AliRsnValueDaughter(const AliRsnValueDaughter &copy) :
2895972e	72	AliRsnValue(copy),
	73	fType(copy.fType)
	74	{
	75	//
	76	// Copy constructor
	77	//
	78	}
	79
	80	//_____________________________________________________________________________
61f275d1	81	AliRsnValueDaughter &AliRsnValueDaughter::operator=(const AliRsnValueDaughter &copy)
2895972e	82	{
	83	//
	84	// Assignment operator.
	85	// Works like copy constructor.
	86	//
	87
	88	AliRsnValue::operator=(copy);
e6f3a909	89	if (this == &copy)
61f275d1	90	return *this;
2895972e	91	fType = copy.fType;
61f275d1	92
2895972e	93	return (*this);
	94	}
	95
	96	//_____________________________________________________________________________
61f275d1	97	const char *AliRsnValueDaughter::GetTypeName() const
2895972e	98	{
	99	//
	100	// This method returns a string to give a name to each possible
	101	// computation value.
	102	//
	103
	104	switch (fType) {
b63357a0	105	case kP: return "SingleTrackPtot";
	106	case kPt: return "SingleTrackPt";
	107	case kPtpc: return "SingleTrackPtpc";
	108	case kEta: return "SingleTrackEta";
b154f736	109	case kMass: return "SingleTrackMass";
b63357a0	110	case kITSsignal: return "SingleTrackITSsignal";
	111	case kTPCsignal: return "SingleTrackTPCsignal";
	112	case kTOFsignal: return "SingleTrackTOFsignal";
52e6652d	113	case kTPCnsigmaPi: return "SingleTrackTPCnsigmaPion";
	114	case kTPCnsigmaK: return "SingleTrackTPCnsigmaKaon";
	115	case kTPCnsigmaP: return "SingleTrackTPCnsigmaProton";
b63357a0	116	case kTOFnsigmaPi: return "SingleTrackTOFnsigmaPion";
	117	case kTOFnsigmaK: return "SingleTrackTOFnsigmaKaon";
	118	case kTOFnsigmaP: return "SingleTrackTOFnsigmaProton";
8ddd6d70	119	case kCharge: return "SingleTrackCharge";
	120	case kPhi: return "SingleTrackPhi";
	121	case kPhiOuterTPC: return "SingleTrackPhiOuterTPC";
b63357a0	122	default: return "Undefined";
2895972e	123	}
	124	}
	125
	126	//_____________________________________________________________________________
	127	Bool_t AliRsnValueDaughter::Eval(TObject *object)
	128	{
	129	//
	130	// Evaluation of the required value.
	131	// Checks that the passed object is of the right type
	132	// and if this check is successful, computes the required value.
	133	// The output of the function tells if computing was successful,
	134	// and the values must be taken with GetValue().
	135	//
61f275d1	136
61f275d1	137	// coherence check, which also casts object
2895972e	138	// to AliRsnTarget data members and returns kFALSE
	139	// in case the object is NULL
	140	if (!TargetOK(object)) return kFALSE;
	141
	142	// set a reference to the mother momentum
b63357a0	143	AliVParticle *ref = fDaughter->GetRef();
b63357a0	144	AliVParticle *refMC = fDaughter->GetRefMC();
2895972e	145	AliVTrack *track = fDaughter->Ref2Vtrack();
b63357a0	146	if (fUseMCInfo && !refMC) {
	147	AliError("No MC");
	148	return kFALSE;
	149	}
	150	if (!fUseMCInfo && !ref) {
	151	AliError("No DATA");
	152	return kFALSE;
	153	}
61f275d1	154
2895972e	155	// compute value depending on types in the enumeration
	156	// if the type does not match any available choice, or if
	157	// the computation is not doable due to any problem
	158	// (not initialized support object, wrong values, risk of floating point errors)
	159	// the method returng kFALSE and sets the computed value to a meaningless number
	160	switch (fType) {
	161	case kP:
b63357a0	162	fComputedValue = (fUseMCInfo ? refMC->P() : ref->P());
2895972e	163	return kTRUE;
2895972e	164	case kPt:
b63357a0	165	fComputedValue = (fUseMCInfo ? refMC->Pt() : ref->Pt());
2895972e	166	return kTRUE;
2895972e	167	case kEta:
b63357a0	168	fComputedValue = (fUseMCInfo ? refMC->Eta() : ref->Eta());
2895972e	169	return kTRUE;
b154f736	170	case kMass:
e6952ec7	171	fComputedValue = (fUseMCInfo ? refMC->M() : ref->M());
b154f736	172	return kTRUE;
2895972e	173	case kPtpc:
	174	if (track) {
	175	fComputedValue = track->GetTPCmomentum();
	176	return kTRUE;
	177	} else {
	178	AliWarning("Cannot get TPC momentum for non-track object");
	179	fComputedValue = 0.0;
	180	return kFALSE;
	181	}
	182	case kITSsignal:
	183	if (track) {
	184	fComputedValue = track->GetITSsignal();
	185	return kTRUE;
	186	} else {
	187	AliWarning("Cannot get ITS signal for non-track object");
	188	fComputedValue = 0.0;
	189	return kFALSE;
	190	}
	191	case kTPCsignal:
	192	if (track) {
	193	fComputedValue = track->GetTPCsignal();
	194	return kTRUE;
	195	} else {
	196	AliWarning("Cannot get TPC signal for non-track object");
	197	fComputedValue = 0.0;
	198	return kFALSE;
	199	}
	200	case kTOFsignal:
	201	if (track) {
	202	fComputedValue = track->GetTOFsignal();
	203	return kTRUE;
	204	} else {
	205	AliWarning("Cannot get TOF signal for non-track object");
	206	fComputedValue = 0.0;
	207	return kFALSE;
	208	}
52e6652d	209	case kTPCnsigmaPi:
	210	if (track) {
	211	AliPIDResponse *pid = fEvent->GetPIDResponse();
	212	fComputedValue = pid->NumberOfSigmasTPC(track, AliPID::kPion);
	213	return kTRUE;
	214	} else {
	215	AliWarning("Cannot get TOF signal for non-track object");
	216	fComputedValue = 0.0;
	217	return kFALSE;
	218	}
	219	case kTPCnsigmaK:
	220	if (track) {
	221	AliPIDResponse *pid = fEvent->GetPIDResponse();
	222	fComputedValue = pid->NumberOfSigmasTPC(track, AliPID::kKaon);
	223	return kTRUE;
	224	} else {
	225	AliWarning("Cannot get TOF signal for non-track object");
	226	fComputedValue = 0.0;
	227	return kFALSE;
	228	}
	229	case kTPCnsigmaP:
	230	if (track) {
	231	AliPIDResponse *pid = fEvent->GetPIDResponse();
	232	fComputedValue = pid->NumberOfSigmasTPC(track, AliPID::kProton);
	233	return kTRUE;
	234	} else {
	235	AliWarning("Cannot get TOF signal for non-track object");
	236	fComputedValue = 0.0;
	237	return kFALSE;
	238	}
b63357a0	239	case kTOFnsigmaPi:
	240	if (track) {
	241	AliPIDResponse *pid = fEvent->GetPIDResponse();
	242	fComputedValue = pid->NumberOfSigmasTOF(track, AliPID::kPion);
	243	return kTRUE;
	244	} else {
	245	AliWarning("Cannot get TOF signal for non-track object");
	246	fComputedValue = 0.0;
	247	return kFALSE;
	248	}
	249	case kTOFnsigmaK:
	250	if (track) {
	251	AliPIDResponse *pid = fEvent->GetPIDResponse();
	252	fComputedValue = pid->NumberOfSigmasTOF(track, AliPID::kKaon);
	253	return kTRUE;
	254	} else {
	255	AliWarning("Cannot get TOF signal for non-track object");
	256	fComputedValue = 0.0;
	257	return kFALSE;
	258	}
	259	case kTOFnsigmaP:
	260	if (track) {
	261	AliPIDResponse *pid = fEvent->GetPIDResponse();
	262	fComputedValue = pid->NumberOfSigmasTOF(track, AliPID::kProton);
	263	return kTRUE;
	264	} else {
	265	AliWarning("Cannot get TOF signal for non-track object");
	266	fComputedValue = 0.0;
	267	return kFALSE;
	268	}
a83bcf6e	269	case kNITSclusters:
a83bcf6e	270	if (track) {
e6952ec7	271	AliESDtrack trackESD = dynamic_cast<AliESDtrack >(track);
	272	if (trackESD) {
	273	fComputedValue = trackESD->GetITSclusters(0);
	274	} else {
	275	fComputedValue = ((AliAODTrack *)track)->GetITSNcls();
	276	}
a83bcf6e	277	return kTRUE;
	278	} else {
	279	AliWarning("Cannot get n ITS clusters for non-track object");
	280	fComputedValue = 0.0;
	281	return kFALSE;
	282	}
	283	case kNTPCclusters:
	284	if (track) {
e6952ec7	285	AliESDtrack trackESD = dynamic_cast<AliESDtrack >(track);
	286	if (trackESD) {
	287	fComputedValue = trackESD->GetTPCclusters(0);
	288	} else {
	289	fComputedValue = ((AliAODTrack *)track)->GetTPCNcls();
	290	}
a83bcf6e	291	return kTRUE;
	292	} else {
	293	AliWarning("Cannot get n TPC clusters for non-track object");
	294	fComputedValue = 0.0;
	295	return kFALSE;
	296	}
	297	case kITSchi2:
	298	if (track) {
e6952ec7	299	AliESDtrack trackESD = dynamic_cast<AliESDtrack >(track);
	300	if (trackESD) {
	301	UShort_t nClustersITS = trackESD->GetITSclusters(0);
	302	fComputedValue = trackESD->GetITSchi2()/Float_t(nClustersITS);
	303	} else {
	304	fComputedValue = ((AliAODTrack *)track)->Chi2perNDF();
	305	}
a83bcf6e	306	return kTRUE;
	307	} else {
	308	AliWarning("Cannot get ITS chi^2 for non-track object");
	309	fComputedValue = 0.0;
	310	return kFALSE;
	311	}
	312	case kTPCchi2:
	313	if (track) {
e6952ec7	314	AliESDtrack trackESD = dynamic_cast<AliESDtrack >(track);
	315	if (trackESD) {
	316	UShort_t nClustersTPC = trackESD->GetTPCclusters(0);
	317	fComputedValue = trackESD->GetTPCchi2()/Float_t(nClustersTPC);
	318	} else {
	319	fComputedValue = ((AliAODTrack *)track)->Chi2perNDF();
	320	}
a83bcf6e	321	return kTRUE;
	322	} else {
	323	AliWarning("Cannot get TPC chi^2 for non-track object");
	324	fComputedValue = 0.0;
	325	return kFALSE;
	326	}
3d0e1672	327	case kDCAXY:
3d0e1672	328	if (track) {
e6952ec7	329	AliESDtrack trackESD = dynamic_cast<AliESDtrack >(track);
	330	if (trackESD) {
	331	Float_t b[2], bCov[3];
	332	trackESD->GetImpactParameters(b, bCov);
	333	fComputedValue = b[0];
	334	} else {
	335	Double_t b[2]= {-999,-999}, cov[3];
	336	AliAODVertex *vertex = fEvent->GetRefAOD()->GetPrimaryVertex();
	337	if(vertex) {
	338	track->PropagateToDCA(vertex, fEvent->GetRefAOD()->GetMagneticField(),kVeryBig, b, cov);
	339	fComputedValue = b[0];
	340	} else {
	341	fComputedValue = -999;
	342	}
	343	}
3d0e1672	344	return kTRUE;
	345	} else {
	346	AliWarning("Cannot get TPC chi^2 for non-track object");
	347	fComputedValue = 0.0;
	348	return kFALSE;
	349	}
	350	case kDCAZ:
	351	if (track) {
e6952ec7	352	AliESDtrack trackESD = dynamic_cast<AliESDtrack >(track);
	353	if (trackESD) {
	354	Float_t b[2], bCov[3];
	355	trackESD->GetImpactParameters(b, bCov);
	356	fComputedValue = b[1];
	357	} else {
	358	Double_t b[2]= {-999,-999}, cov[3];
	359	AliAODVertex *vertex = fEvent->GetRefAOD()->GetPrimaryVertex();
	360	if(vertex) {
	361	track->PropagateToDCA(vertex, fEvent->GetRefAOD()->GetMagneticField(),kVeryBig, b, cov);
	362	fComputedValue = b[1];
	363	} else {
	364	fComputedValue = -999;
	365	}
3d0e1672	366
e6952ec7	367	}
3d0e1672	368	return kTRUE;
	369	} else {
	370	AliWarning("Cannot get TPC chi^2 for non-track object");
	371	fComputedValue = 0.0;
	372	return kFALSE;
	373	}
8ddd6d70	374
	375	case kCharge:
	376	fComputedValue = (fUseMCInfo ? refMC->Charge() : ref->Charge());
	377	return kTRUE;
	378
	379	case kPhi:
	380	fComputedValue = (fUseMCInfo ? (refMC->Phi()TMath::RadToDeg()) : (ref->Phi()TMath::RadToDeg()));
	381	return kTRUE;
	382
	383	case kPhiOuterTPC:
	384	if (track) {
	385	Double_t pos[3]={0.,0.,0.};
	386	Double_t phiOut = -999.0;
	387	Double_t radius = 278.;//TPC outer (vessel) = 278 cm, TOF radius (active surf.) = 378 cm; ref. PPR.1
fcb14157	388	AliExternalTrackParam etp; //thanks to Andrea and Cristina
	389	etp.CopyFromVTrack(track);
	390	if(etp.GetXYZAt(radius, 5., pos)){
8ddd6d70	391	phiOut=TMath::ATan2(pos[1],pos[0])*TMath::RadToDeg();
8ddd6d70	392	if (phiOut<0) phiOut+= (2TMath::Pi()TMath::RadToDeg());
8ddd6d70	393	}
	394	fComputedValue = phiOut;
	395	} else {
	396	AliWarning("Cannot get phi at outer TPC radius for non-track object");
fcb14157	397	fComputedValue = -99.0;
8ddd6d70	398	return kFALSE;
	399	}
	400	return kTRUE;
	401
2895972e	402	default:
	403	AliError(Form("[%s] Invalid value type for this computation", GetName()));
	404	return kFALSE;
	405	}
	406	}