[u/mrichter/AliRoot.git] / PWG3 / vertexingHF / AliAODRecoDecayHF3Prong.cxx

/**************************************************************************
 * Copyright(c) 1998-2006, 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.                  *
 **************************************************************************/

/////////////////////////////////////////////////////////////
//
// Base class for AOD reconstructed heavy-flavour 3-prong decay
//
// Author: E.Bruna bruna@to.infn.it, F.Prino prino@to.infn.it
/////////////////////////////////////////////////////////////

#include <TDatabasePDG.h>
#include "AliAODRecoDecayHF.h"
#include "AliAODRecoDecayHF3Prong.h"

ClassImp(AliAODRecoDecayHF3Prong)

//--------------------------------------------------------------------------
AliAODRecoDecayHF3Prong::AliAODRecoDecayHF3Prong() :
  AliAODRecoDecayHF(), 
  fSigmaVert(0),
  fDist12toPrim(0),
  fDist23toPrim(0)
{
  //
  // Default Constructor
  //
}
//--------------------------------------------------------------------------
AliAODRecoDecayHF3Prong::AliAODRecoDecayHF3Prong(AliAODVertex *vtx2,
						 Double_t *px,Double_t *py,Double_t *pz,
						 Double_t *d0,Double_t *d0err,
						 Double_t *dca, Double_t sigvert,
						 Double_t dist12,Double_t dist23,Short_t charge) :
  AliAODRecoDecayHF(vtx2,3,charge,px,py,pz,d0,d0err),
  fSigmaVert(sigvert),
  fDist12toPrim(dist12),
  fDist23toPrim(dist23)
{
  //
  // Constructor with AliAODVertex for decay vertex
  //
  SetDCAs(3,dca);
}
//--------------------------------------------------------------------------
AliAODRecoDecayHF3Prong::AliAODRecoDecayHF3Prong(AliAODVertex *vtx2,
						 Double_t *d0,Double_t *d0err,
						 Double_t *dca, Double_t sigvert,
						 Double_t dist12,Double_t dist23, Short_t charge) :
  AliAODRecoDecayHF(vtx2,3,charge,d0,d0err),
  fSigmaVert(sigvert),
  fDist12toPrim(dist12),
  fDist23toPrim(dist23)
{
  //
  // Constructor with AliAODVertex for decay vertex and without prongs momenta
  //
  SetDCAs(3,dca);
}
//--------------------------------------------------------------------------
AliAODRecoDecayHF3Prong::AliAODRecoDecayHF3Prong(const AliAODRecoDecayHF3Prong &source) :
  AliAODRecoDecayHF(source),
  fSigmaVert(source.fSigmaVert),
  fDist12toPrim(source.fDist12toPrim),
  fDist23toPrim(source.fDist23toPrim)
{
  //
  // Copy constructor
  //
}
//--------------------------------------------------------------------------
AliAODRecoDecayHF3Prong &AliAODRecoDecayHF3Prong::operator=(const AliAODRecoDecayHF3Prong &source)
{
  //
  // assignment operator
  //
  if(&source == this) return *this;

  AliAODRecoDecayHF::operator=(source);

  fDist12toPrim= source.fDist12toPrim;
  fDist23toPrim= source.fDist23toPrim;
  fSigmaVert= source.fSigmaVert;

  return *this;
}
//--------------------------------------------------------------------------
Bool_t AliAODRecoDecayHF3Prong::SelectDplus(const Double_t *cuts)
  const {
//
// This function compares the Dplus with a set of cuts:
//
// cuts[0] = inv. mass half width [GeV]   
// cuts[1] = pTK [GeV/c]
// cuts[2] = pTPi [GeV/c]
// cuts[3] = d0K [cm]   lower limit!
// cuts[4] = d0Pi [cm]  lower limit!
// cuts[5] = dist12 (cm)
// cuts[6] = sigmavert (cm)
// cuts[7] = dist prim-sec (cm)
// cuts[8] = pM=Max{pT1,pT2,pT3} (GeV/c)
// cuts[9] = cosThetaPoint
// cuts[10] = Sum d0^2 (cm^2)
// cuts[11] = dca cut (cm)
//
// If candidate Dplus does not pass the cuts return kFALSE
//

  Double_t mDplusPDG = TDatabasePDG::Instance()->GetParticle(411)->Mass();
  Double_t mDplus=InvMassDplus();
  if(TMath::Abs(mDplus-mDplusPDG)>cuts[0])return kFALSE;
  //single track
  if(TMath::Abs(PtProng(1)) < cuts[1] || TMath::Abs(Getd0Prong(1))<cuts[3])return kFALSE;//Kaon
  if(TMath::Abs(PtProng(0)) < cuts[2] || TMath::Abs(Getd0Prong(0))<cuts[4])return kFALSE;//Pion1
  if(TMath::Abs(PtProng(2)) < cuts[2] || TMath::Abs(Getd0Prong(2))<cuts[4])return kFALSE;//Pion2

  //DCA
  for(Int_t i=0;i<3;i++) if(GetDCA(i)>cuts[11])return kFALSE;

  //2track cuts
  if(fDist12toPrim<cuts[5] || fDist23toPrim<cuts[5])return kFALSE;
  if(Getd0Prong(0)*Getd0Prong(1)<0. && Getd0Prong(2)*Getd0Prong(1)<0.)return kFALSE;

  //sec vert
  if(fSigmaVert>cuts[6])return kFALSE;

  if(DecayLength()<cuts[7])return kFALSE;

  if(TMath::Abs(PtProng(0))<cuts[8] && TMath::Abs(PtProng(1))<cuts[8] && TMath::Abs(PtProng(2))<cuts[8])return kFALSE;
  if(CosPointingAngle()   < cuts[9])return kFALSE;
  Double_t sum2=Getd0Prong(0)*Getd0Prong(0)+Getd0Prong(1)*Getd0Prong(1)+Getd0Prong(2)*Getd0Prong(2);
  if(sum2<cuts[10])return kFALSE;
  return kTRUE;
}
//--------------------------------------------------------------------------
Bool_t AliAODRecoDecayHF3Prong::SelectDs(const Double_t *cuts,Int_t &okDsKKpi,Int_t &okDspiKK)
  const {
//
// This function compares the Ds with a set of cuts 
// (same variables as D+, for now)
//
// cuts[0] = inv. mass half width [GeV]   
// cuts[1] = pTK [GeV/c]
// cuts[2] = pTPi [GeV/c]
// cuts[3] = d0K [cm]   lower limit!
// cuts[4] = d0Pi [cm]  lower limit!
// cuts[5] = dist12 (cm)
// cuts[6] = sigmavert (cm)
// cuts[7] = dist prim-sec (cm)
// cuts[8] = pM=Max{pT1,pT2,pT3} (GeV/c)
// cuts[9] = cosThetaPoint
// cuts[10] = Sum d0^2 (cm^2)
// cuts[11] = dca cut (cm)
// cuts[12] = max. inv. mass difference(Mphi-MKK and MK0*-MKpi) [GeV] 
//
// If candidate Ds does not pass the cuts return kFALSE
//
  Double_t mDsKKpi,mDspiKK;
  okDsKKpi=1; okDspiKK=1;

  Double_t mDsPDG = TDatabasePDG::Instance()->GetParticle(431)->Mass();

  mDsKKpi=InvMassDsKKpi();
  mDspiKK=InvMassDspiKK();

  if(TMath::Abs(mDsKKpi-mDsPDG)>cuts[0]) okDsKKpi = 0;
  if(TMath::Abs(mDspiKK-mDsPDG)>cuts[0]) okDspiKK = 0;
  if(!okDsKKpi && !okDspiKK) return kFALSE;

  //single track
  if(TMath::Abs(PtProng(0)) < cuts[1] || TMath::Abs(Getd0Prong(0))<cuts[3])return kFALSE;//Kaon1
  if(TMath::Abs(PtProng(1)) < cuts[1] || TMath::Abs(Getd0Prong(1))<cuts[3])return kFALSE;//Kaon2
  if(TMath::Abs(PtProng(2)) < cuts[2] || TMath::Abs(Getd0Prong(2))<cuts[4])return kFALSE;//Pion

  // cuts on resonant decays (via Phi or K0*)
  Bool_t okMassPhi=1;
  Double_t mass01phi=InvMass2Prongs(0,1,321,321);
  Double_t mass12phi=InvMass2Prongs(1,2,321,321);
  Double_t mPhiPDG = TDatabasePDG::Instance()->GetParticle(333)->Mass();
  if(TMath::Abs(mass01phi-mPhiPDG)>cuts[12] && TMath::Abs(mass12phi-mPhiPDG)>cuts[12]) okMassPhi = 0;
  Bool_t okMassK0star=1;
  Double_t mass01K0s=InvMass2Prongs(0,1,211,321);
  Double_t mass12K0s=InvMass2Prongs(1,2,321,211);
  Double_t mK0sPDG = TDatabasePDG::Instance()->GetParticle(313)->Mass();
  if(TMath::Abs(mass01K0s-mK0sPDG)>cuts[12] && TMath::Abs(mass12K0s-mK0sPDG)>cuts[12]) okMassK0star = 0;
  if(!okMassPhi && !okMassK0star) return kFALSE;
  
  //DCA
  for(Int_t i=0;i<3;i++) if(GetDCA(i)>cuts[11])return kFALSE;

  //2track cuts
  if(fDist12toPrim<cuts[5] || fDist23toPrim<cuts[5])return kFALSE;

  //sec vert
  if(fSigmaVert>cuts[6])return kFALSE;

  if(DecayLength()<cuts[7])return kFALSE;

  if(TMath::Abs(PtProng(0))<cuts[8] && TMath::Abs(PtProng(1))<cuts[8] && TMath::Abs(PtProng(2))<cuts[8])return kFALSE;
  if(CosPointingAngle()   < cuts[9])return kFALSE;
  Double_t sum2=Getd0Prong(0)*Getd0Prong(0)+Getd0Prong(1)*Getd0Prong(1)+Getd0Prong(2)*Getd0Prong(2);
  if(sum2<cuts[10])return kFALSE;

  return kTRUE;
}
//--------------------------------------------------------------------------
Bool_t AliAODRecoDecayHF3Prong::SelectLc(const Double_t *cuts,Int_t &okLcpKpi,Int_t &okLcpiKp)
  const {
//
// This function compares the Lc with a set of cuts 
// (same variables as D+, for now)
//
// cuts[0] = inv. mass half width [GeV]   
// cuts[1] = pTP [GeV/c]
// cuts[2] = pTPi and pTK [GeV/c]
// cuts[3] = d0P [cm]   lower limit!
// cuts[4] = d0Pi and d0K [cm]  lower limit!
// cuts[5] = dist12 (cm)
// cuts[6] = sigmavert (cm)
// cuts[7] = dist prim-sec (cm)
// cuts[8] = pM=Max{pT1,pT2,pT3} (GeV/c)
// cuts[9] = cosThetaPoint
// cuts[10] = Sum d0^2 (cm^2)
// cuts[11] = dca cut (cm)
//
// If candidate Lc does not pass the cuts return kFALSE
//
  Double_t mLcpKpi,mLcpiKp;
  okLcpKpi=1; okLcpiKp=1;

  Double_t mLcPDG = TDatabasePDG::Instance()->GetParticle(4122)->Mass();

  mLcpKpi=InvMassLcpKpi();
  mLcpiKp=InvMassLcpiKp();

  if(TMath::Abs(mLcpKpi-mLcPDG)>cuts[0]) okLcpKpi = 0;
  if(TMath::Abs(mLcpiKp-mLcPDG)>cuts[0]) okLcpiKp = 0;
  if(!okLcpKpi && !okLcpiKp) return kFALSE;

  //single track
  if(TMath::Abs(PtProng(0)) < cuts[1] || TMath::Abs(Getd0Prong(0))<cuts[3])return kFALSE;//Proton
  if(TMath::Abs(PtProng(1)) < cuts[2] || TMath::Abs(Getd0Prong(1))<cuts[4])return kFALSE;//Kaon
  if(TMath::Abs(PtProng(2)) < cuts[2] || TMath::Abs(Getd0Prong(2))<cuts[4])return kFALSE;//Pion

  //DCA
  for(Int_t i=0;i<3;i++) if(GetDCA(i)>cuts[11])return kFALSE;

  //2track cuts
  if(fDist12toPrim<cuts[5] || fDist23toPrim<cuts[5])return kFALSE;
  if(Getd0Prong(0)*Getd0Prong(1)<0. && Getd0Prong(2)*Getd0Prong(1)<0.)return kFALSE;

  //sec vert
  if(fSigmaVert>cuts[6])return kFALSE;

  if(DecayLength()<cuts[7])return kFALSE;

  if(TMath::Abs(PtProng(0))<cuts[8] && TMath::Abs(PtProng(1))<cuts[8] && TMath::Abs(PtProng(2))<cuts[8])return kFALSE;
  if(CosPointingAngle()   < cuts[9])return kFALSE;
  Double_t sum2=Getd0Prong(0)*Getd0Prong(0)+Getd0Prong(1)*Getd0Prong(1)+Getd0Prong(2)*Getd0Prong(2);
  if(sum2<cuts[10])return kFALSE;

  return kTRUE;
}
Commit	Line	Data
3244eeed	1	/**************************************************************************
	2	* Copyright(c) 1998-2006, 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	// Base class for AOD reconstructed heavy-flavour 3-prong decay
	19	//
	20	// Author: E.Bruna bruna@to.infn.it, F.Prino prino@to.infn.it
	21	/////////////////////////////////////////////////////////////
	22
	23	#include <TDatabasePDG.h>
	24	#include "AliAODRecoDecayHF.h"
	25	#include "AliAODRecoDecayHF3Prong.h"
	26
	27	ClassImp(AliAODRecoDecayHF3Prong)
	28
	29	//--------------------------------------------------------------------------
	30	AliAODRecoDecayHF3Prong::AliAODRecoDecayHF3Prong() :
	31	AliAODRecoDecayHF(),
	32	fSigmaVert(0),
	33	fDist12toPrim(0),
	34	fDist23toPrim(0)
	35	{
	36	//
	37	// Default Constructor
	38	//
	39	}
	40	//--------------------------------------------------------------------------
	41	AliAODRecoDecayHF3Prong::AliAODRecoDecayHF3Prong(AliAODVertex *vtx2,
	42	Double_t px,Double_t py,Double_t *pz,
	43	Double_t d0,Double_t d0err,
	44	Double_t *dca, Double_t sigvert,
	45	Double_t dist12,Double_t dist23,Short_t charge) :
	46	AliAODRecoDecayHF(vtx2,3,charge,px,py,pz,d0,d0err),
	47	fSigmaVert(sigvert),
	48	fDist12toPrim(dist12),
	49	fDist23toPrim(dist23)
	50	{
	51	//
	52	// Constructor with AliAODVertex for decay vertex
	53	//
6185d025	54	SetDCAs(3,dca);
3244eeed	55	}
	56	//--------------------------------------------------------------------------
	57	AliAODRecoDecayHF3Prong::AliAODRecoDecayHF3Prong(AliAODVertex *vtx2,
	58	Double_t d0,Double_t d0err,
	59	Double_t *dca, Double_t sigvert,
	60	Double_t dist12,Double_t dist23, Short_t charge) :
	61	AliAODRecoDecayHF(vtx2,3,charge,d0,d0err),
	62	fSigmaVert(sigvert),
	63	fDist12toPrim(dist12),
	64	fDist23toPrim(dist23)
	65	{
	66	//
	67	// Constructor with AliAODVertex for decay vertex and without prongs momenta
	68	//
6185d025	69	SetDCAs(3,dca);
3244eeed	70	}
	71	//--------------------------------------------------------------------------
	72	AliAODRecoDecayHF3Prong::AliAODRecoDecayHF3Prong(const AliAODRecoDecayHF3Prong &source) :
	73	AliAODRecoDecayHF(source),
	74	fSigmaVert(source.fSigmaVert),
	75	fDist12toPrim(source.fDist12toPrim),
	76	fDist23toPrim(source.fDist23toPrim)
	77	{
	78	//
	79	// Copy constructor
	80	//
	81	}
	82	//--------------------------------------------------------------------------
	83	AliAODRecoDecayHF3Prong &AliAODRecoDecayHF3Prong::operator=(const AliAODRecoDecayHF3Prong &source)
	84	{
	85	//
	86	// assignment operator
	87	//
	88	if(&source == this) return *this;
dcb444c9	89
	90	AliAODRecoDecayHF::operator=(source);
	91
3244eeed	92	fDist12toPrim= source.fDist12toPrim;
	93	fDist23toPrim= source.fDist23toPrim;
	94	fSigmaVert= source.fSigmaVert;
dcb444c9	95
3244eeed	96	return *this;
	97	}
	98	//--------------------------------------------------------------------------
	99	Bool_t AliAODRecoDecayHF3Prong::SelectDplus(const Double_t *cuts)
	100	const {
	101	//
	102	// This function compares the Dplus with a set of cuts:
	103	//
	104	// cuts[0] = inv. mass half width [GeV]
	105	// cuts[1] = pTK [GeV/c]
	106	// cuts[2] = pTPi [GeV/c]
	107	// cuts[3] = d0K [cm] lower limit!
	108	// cuts[4] = d0Pi [cm] lower limit!
	109	// cuts[5] = dist12 (cm)
	110	// cuts[6] = sigmavert (cm)
	111	// cuts[7] = dist prim-sec (cm)
	112	// cuts[8] = pM=Max{pT1,pT2,pT3} (GeV/c)
	113	// cuts[9] = cosThetaPoint
	114	// cuts[10] = Sum d0^2 (cm^2)
	115	// cuts[11] = dca cut (cm)
	116	//
	117	// If candidate Dplus does not pass the cuts return kFALSE
	118	//
	119
	120	Double_t mDplusPDG = TDatabasePDG::Instance()->GetParticle(411)->Mass();
	121	Double_t mDplus=InvMassDplus();
	122	if(TMath::Abs(mDplus-mDplusPDG)>cuts[0])return kFALSE;
	123	//single track
	124	if(TMath::Abs(PtProng(1)) < cuts[1] \|\| TMath::Abs(Getd0Prong(1))<cuts[3])return kFALSE;//Kaon
	125	if(TMath::Abs(PtProng(0)) < cuts[2] \|\| TMath::Abs(Getd0Prong(0))<cuts[4])return kFALSE;//Pion1
	126	if(TMath::Abs(PtProng(2)) < cuts[2] \|\| TMath::Abs(Getd0Prong(2))<cuts[4])return kFALSE;//Pion2
	127
	128	//DCA
81679460	129	for(Int_t i=0;i<3;i++) if(GetDCA(i)>cuts[11])return kFALSE;
3244eeed	130
	131	//2track cuts
	132	if(fDist12toPrim<cuts[5] \|\| fDist23toPrim<cuts[5])return kFALSE;
	133	if(Getd0Prong(0)Getd0Prong(1)<0. && Getd0Prong(2)Getd0Prong(1)<0.)return kFALSE;
	134
	135	//sec vert
	136	if(fSigmaVert>cuts[6])return kFALSE;
	137
	138	if(DecayLength()<cuts[7])return kFALSE;
	139
	140	if(TMath::Abs(PtProng(0))<cuts[8] && TMath::Abs(PtProng(1))<cuts[8] && TMath::Abs(PtProng(2))<cuts[8])return kFALSE;
	141	if(CosPointingAngle() < cuts[9])return kFALSE;
	142	Double_t sum2=Getd0Prong(0)Getd0Prong(0)+Getd0Prong(1)Getd0Prong(1)+Getd0Prong(2)*Getd0Prong(2);
	143	if(sum2<cuts[10])return kFALSE;
	144	return kTRUE;
	145	}
79250a2b	146	//--------------------------------------------------------------------------
	147	Bool_t AliAODRecoDecayHF3Prong::SelectDs(const Double_t *cuts,Int_t &okDsKKpi,Int_t &okDspiKK)
	148	const {
	149	//
6ea608bf	150	// This function compares the Ds with a set of cuts
6ea608bf	151	// (same variables as D+, for now)
79250a2b	152	//
79250a2b	153	// cuts[0] = inv. mass half width [GeV]
6ea608bf	154	// cuts[1] = pTK [GeV/c]
	155	// cuts[2] = pTPi [GeV/c]
	156	// cuts[3] = d0K [cm] lower limit!
	157	// cuts[4] = d0Pi [cm] lower limit!
	158	// cuts[5] = dist12 (cm)
	159	// cuts[6] = sigmavert (cm)
	160	// cuts[7] = dist prim-sec (cm)
	161	// cuts[8] = pM=Max{pT1,pT2,pT3} (GeV/c)
	162	// cuts[9] = cosThetaPoint
	163	// cuts[10] = Sum d0^2 (cm^2)
	164	// cuts[11] = dca cut (cm)
81679460	165	// cuts[12] = max. inv. mass difference(Mphi-MKK and MK0*-MKpi) [GeV]
79250a2b	166	//
	167	// If candidate Ds does not pass the cuts return kFALSE
	168	//
	169	Double_t mDsKKpi,mDspiKK;
	170	okDsKKpi=1; okDspiKK=1;
	171
	172	Double_t mDsPDG = TDatabasePDG::Instance()->GetParticle(431)->Mass();
	173
	174	mDsKKpi=InvMassDsKKpi();
	175	mDspiKK=InvMassDspiKK();
	176
	177	if(TMath::Abs(mDsKKpi-mDsPDG)>cuts[0]) okDsKKpi = 0;
	178	if(TMath::Abs(mDspiKK-mDsPDG)>cuts[0]) okDspiKK = 0;
	179	if(!okDsKKpi && !okDspiKK) return kFALSE;
	180
6ea608bf	181	//single track
	182	if(TMath::Abs(PtProng(0)) < cuts[1] \|\| TMath::Abs(Getd0Prong(0))<cuts[3])return kFALSE;//Kaon1
	183	if(TMath::Abs(PtProng(1)) < cuts[1] \|\| TMath::Abs(Getd0Prong(1))<cuts[3])return kFALSE;//Kaon2
81679460	184	if(TMath::Abs(PtProng(2)) < cuts[2] \|\| TMath::Abs(Getd0Prong(2))<cuts[4])return kFALSE;//Pion
6ea608bf	185
81679460	186	// cuts on resonant decays (via Phi or K0*)
	187	Bool_t okMassPhi=1;
	188	Double_t mass01phi=InvMass2Prongs(0,1,321,321);
	189	Double_t mass12phi=InvMass2Prongs(1,2,321,321);
	190	Double_t mPhiPDG = TDatabasePDG::Instance()->GetParticle(333)->Mass();
	191	if(TMath::Abs(mass01phi-mPhiPDG)>cuts[12] && TMath::Abs(mass12phi-mPhiPDG)>cuts[12]) okMassPhi = 0;
	192	Bool_t okMassK0star=1;
	193	Double_t mass01K0s=InvMass2Prongs(0,1,211,321);
	194	Double_t mass12K0s=InvMass2Prongs(1,2,321,211);
	195	Double_t mK0sPDG = TDatabasePDG::Instance()->GetParticle(313)->Mass();
	196	if(TMath::Abs(mass01K0s-mK0sPDG)>cuts[12] && TMath::Abs(mass12K0s-mK0sPDG)>cuts[12]) okMassK0star = 0;
	197	if(!okMassPhi && !okMassK0star) return kFALSE;
	198
6ea608bf	199	//DCA
81679460	200	for(Int_t i=0;i<3;i++) if(GetDCA(i)>cuts[11])return kFALSE;
6ea608bf	201
	202	//2track cuts
	203	if(fDist12toPrim<cuts[5] \|\| fDist23toPrim<cuts[5])return kFALSE;
6ea608bf	204
	205	//sec vert
	206	if(fSigmaVert>cuts[6])return kFALSE;
	207
	208	if(DecayLength()<cuts[7])return kFALSE;
	209
	210	if(TMath::Abs(PtProng(0))<cuts[8] && TMath::Abs(PtProng(1))<cuts[8] && TMath::Abs(PtProng(2))<cuts[8])return kFALSE;
	211	if(CosPointingAngle() < cuts[9])return kFALSE;
	212	Double_t sum2=Getd0Prong(0)Getd0Prong(0)+Getd0Prong(1)Getd0Prong(1)+Getd0Prong(2)*Getd0Prong(2);
	213	if(sum2<cuts[10])return kFALSE;
	214
79250a2b	215	return kTRUE;
	216	}
	217	//--------------------------------------------------------------------------
	218	Bool_t AliAODRecoDecayHF3Prong::SelectLc(const Double_t *cuts,Int_t &okLcpKpi,Int_t &okLcpiKp)
	219	const {
	220	//
6ea608bf	221	// This function compares the Lc with a set of cuts
6ea608bf	222	// (same variables as D+, for now)
79250a2b	223	//
79250a2b	224	// cuts[0] = inv. mass half width [GeV]
6ea608bf	225	// cuts[1] = pTP [GeV/c]
	226	// cuts[2] = pTPi and pTK [GeV/c]
	227	// cuts[3] = d0P [cm] lower limit!
	228	// cuts[4] = d0Pi and d0K [cm] lower limit!
	229	// cuts[5] = dist12 (cm)
	230	// cuts[6] = sigmavert (cm)
	231	// cuts[7] = dist prim-sec (cm)
	232	// cuts[8] = pM=Max{pT1,pT2,pT3} (GeV/c)
	233	// cuts[9] = cosThetaPoint
	234	// cuts[10] = Sum d0^2 (cm^2)
	235	// cuts[11] = dca cut (cm)
79250a2b	236	//
	237	// If candidate Lc does not pass the cuts return kFALSE
	238	//
	239	Double_t mLcpKpi,mLcpiKp;
	240	okLcpKpi=1; okLcpiKp=1;
	241
	242	Double_t mLcPDG = TDatabasePDG::Instance()->GetParticle(4122)->Mass();
	243
	244	mLcpKpi=InvMassLcpKpi();
	245	mLcpiKp=InvMassLcpiKp();
	246
	247	if(TMath::Abs(mLcpKpi-mLcPDG)>cuts[0]) okLcpKpi = 0;
	248	if(TMath::Abs(mLcpiKp-mLcPDG)>cuts[0]) okLcpiKp = 0;
	249	if(!okLcpKpi && !okLcpiKp) return kFALSE;
	250
6ea608bf	251	//single track
	252	if(TMath::Abs(PtProng(0)) < cuts[1] \|\| TMath::Abs(Getd0Prong(0))<cuts[3])return kFALSE;//Proton
	253	if(TMath::Abs(PtProng(1)) < cuts[2] \|\| TMath::Abs(Getd0Prong(1))<cuts[4])return kFALSE;//Kaon
	254	if(TMath::Abs(PtProng(2)) < cuts[2] \|\| TMath::Abs(Getd0Prong(2))<cuts[4])return kFALSE;//Pion
	255
	256	//DCA
81679460	257	for(Int_t i=0;i<3;i++) if(GetDCA(i)>cuts[11])return kFALSE;
6ea608bf	258
	259	//2track cuts
	260	if(fDist12toPrim<cuts[5] \|\| fDist23toPrim<cuts[5])return kFALSE;
	261	if(Getd0Prong(0)Getd0Prong(1)<0. && Getd0Prong(2)Getd0Prong(1)<0.)return kFALSE;
	262
	263	//sec vert
	264	if(fSigmaVert>cuts[6])return kFALSE;
	265
	266	if(DecayLength()<cuts[7])return kFALSE;
	267
	268	if(TMath::Abs(PtProng(0))<cuts[8] && TMath::Abs(PtProng(1))<cuts[8] && TMath::Abs(PtProng(2))<cuts[8])return kFALSE;
	269	if(CosPointingAngle() < cuts[9])return kFALSE;
	270	Double_t sum2=Getd0Prong(0)Getd0Prong(0)+Getd0Prong(1)Getd0Prong(1)+Getd0Prong(2)*Getd0Prong(2);
	271	if(sum2<cuts[10])return kFALSE;
	272
79250a2b	273	return kTRUE;
79250a2b	274	}