[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.                  *
 **************************************************************************/

/* $Id$ */

/////////////////////////////////////////////////////////////
//
// 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"
#include "AliAODTrack.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;
}
//-------------Temporary fix: overload AliAODRecoDecay::Charge()-----------
Short_t AliAODRecoDecayHF3Prong::Charge() const {
  Short_t charge=0;
  for(Int_t daught=0;daught<=2;daught++)charge=charge+((AliAODTrack*)GetDaughter(daught))->Charge();
  return charge;
}
//--------------------------------------------------------------------------
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, Int_t &okMassPhi, Int_t &okMassK0star)
  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) [GeV] 
// cuts[13] = max. inv. mass difference(MK0*-MKpi) [GeV] 
//
// If candidate Ds does not pass the cuts return kFALSE
//
  Double_t mDsKKpi,mDspiKK;
  okDsKKpi=1; okDspiKK=1;
  okMassPhi=0; okMassK0star=0;

  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*)
  Double_t mPhiPDG = TDatabasePDG::Instance()->GetParticle(333)->Mass();
  Double_t mK0starPDG = TDatabasePDG::Instance()->GetParticle(313)->Mass();
  if(okDsKKpi){
    Double_t mass01phi=InvMass2Prongs(0,1,321,321);
    Double_t mass12K0s=InvMass2Prongs(1,2,321,211);
    if(TMath::Abs(mass01phi-mPhiPDG)<cuts[12]) okMassPhi=1;
    if(TMath::Abs(mass12K0s-mK0starPDG)<cuts[13]) okMassK0star = 1;
    if(!okMassPhi && !okMassK0star) okDsKKpi=kFALSE;
  }
  if(okDspiKK){
    Double_t mass01K0s=InvMass2Prongs(0,1,211,321);
    Double_t mass12phi=InvMass2Prongs(1,2,321,321);
    if(TMath::Abs(mass01K0s-mK0starPDG)<cuts[13]) okMassK0star = 1;
    if(TMath::Abs(mass12phi-mPhiPDG)<cuts[12]) okMassPhi=1;
    if(!okMassPhi && !okMassK0star) okDspiKK=kFALSE;
  }
  if(!okDsKKpi && !okDspiKK) 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
27de2dfb	16	/* $Id$ */
27de2dfb	17
3244eeed	18	/////////////////////////////////////////////////////////////
	19	//
	20	// Base class for AOD reconstructed heavy-flavour 3-prong decay
	21	//
	22	// Author: E.Bruna bruna@to.infn.it, F.Prino prino@to.infn.it
	23	/////////////////////////////////////////////////////////////
	24
	25	#include <TDatabasePDG.h>
	26	#include "AliAODRecoDecayHF.h"
	27	#include "AliAODRecoDecayHF3Prong.h"
16156b6d	28	#include "AliAODTrack.h"
3244eeed	29
	30	ClassImp(AliAODRecoDecayHF3Prong)
	31
	32	//--------------------------------------------------------------------------
	33	AliAODRecoDecayHF3Prong::AliAODRecoDecayHF3Prong() :
	34	AliAODRecoDecayHF(),
	35	fSigmaVert(0),
	36	fDist12toPrim(0),
	37	fDist23toPrim(0)
	38	{
	39	//
	40	// Default Constructor
	41	//
	42	}
	43	//--------------------------------------------------------------------------
	44	AliAODRecoDecayHF3Prong::AliAODRecoDecayHF3Prong(AliAODVertex *vtx2,
	45	Double_t px,Double_t py,Double_t *pz,
	46	Double_t d0,Double_t d0err,
	47	Double_t *dca, Double_t sigvert,
	48	Double_t dist12,Double_t dist23,Short_t charge) :
	49	AliAODRecoDecayHF(vtx2,3,charge,px,py,pz,d0,d0err),
	50	fSigmaVert(sigvert),
	51	fDist12toPrim(dist12),
	52	fDist23toPrim(dist23)
	53	{
	54	//
	55	// Constructor with AliAODVertex for decay vertex
	56	//
6185d025	57	SetDCAs(3,dca);
3244eeed	58	}
	59	//--------------------------------------------------------------------------
	60	AliAODRecoDecayHF3Prong::AliAODRecoDecayHF3Prong(AliAODVertex *vtx2,
	61	Double_t d0,Double_t d0err,
	62	Double_t *dca, Double_t sigvert,
	63	Double_t dist12,Double_t dist23, Short_t charge) :
	64	AliAODRecoDecayHF(vtx2,3,charge,d0,d0err),
	65	fSigmaVert(sigvert),
	66	fDist12toPrim(dist12),
	67	fDist23toPrim(dist23)
	68	{
	69	//
	70	// Constructor with AliAODVertex for decay vertex and without prongs momenta
	71	//
6185d025	72	SetDCAs(3,dca);
3244eeed	73	}
	74	//--------------------------------------------------------------------------
	75	AliAODRecoDecayHF3Prong::AliAODRecoDecayHF3Prong(const AliAODRecoDecayHF3Prong &source) :
	76	AliAODRecoDecayHF(source),
	77	fSigmaVert(source.fSigmaVert),
	78	fDist12toPrim(source.fDist12toPrim),
	79	fDist23toPrim(source.fDist23toPrim)
	80	{
	81	//
	82	// Copy constructor
	83	//
	84	}
	85	//--------------------------------------------------------------------------
	86	AliAODRecoDecayHF3Prong &AliAODRecoDecayHF3Prong::operator=(const AliAODRecoDecayHF3Prong &source)
	87	{
	88	//
	89	// assignment operator
	90	//
	91	if(&source == this) return *this;
dcb444c9	92
	93	AliAODRecoDecayHF::operator=(source);
	94
3244eeed	95	fDist12toPrim= source.fDist12toPrim;
	96	fDist23toPrim= source.fDist23toPrim;
	97	fSigmaVert= source.fSigmaVert;
dcb444c9	98
3244eeed	99	return *this;
3244eeed	100	}
16156b6d	101	//-------------Temporary fix: overload AliAODRecoDecay::Charge()-----------
	102	Short_t AliAODRecoDecayHF3Prong::Charge() const {
	103	Short_t charge=0;
	104	for(Int_t daught=0;daught<=2;daught++)charge=charge+((AliAODTrack*)GetDaughter(daught))->Charge();
	105	return charge;
	106	}
3244eeed	107	//--------------------------------------------------------------------------
	108	Bool_t AliAODRecoDecayHF3Prong::SelectDplus(const Double_t *cuts)
	109	const {
	110	//
	111	// This function compares the Dplus with a set of cuts:
	112	//
	113	// cuts[0] = inv. mass half width [GeV]
	114	// cuts[1] = pTK [GeV/c]
	115	// cuts[2] = pTPi [GeV/c]
	116	// cuts[3] = d0K [cm] lower limit!
	117	// cuts[4] = d0Pi [cm] lower limit!
	118	// cuts[5] = dist12 (cm)
	119	// cuts[6] = sigmavert (cm)
	120	// cuts[7] = dist prim-sec (cm)
	121	// cuts[8] = pM=Max{pT1,pT2,pT3} (GeV/c)
	122	// cuts[9] = cosThetaPoint
	123	// cuts[10] = Sum d0^2 (cm^2)
	124	// cuts[11] = dca cut (cm)
	125	//
	126	// If candidate Dplus does not pass the cuts return kFALSE
	127	//
	128
	129	Double_t mDplusPDG = TDatabasePDG::Instance()->GetParticle(411)->Mass();
	130	Double_t mDplus=InvMassDplus();
	131	if(TMath::Abs(mDplus-mDplusPDG)>cuts[0])return kFALSE;
	132	//single track
	133	if(TMath::Abs(PtProng(1)) < cuts[1] \|\| TMath::Abs(Getd0Prong(1))<cuts[3])return kFALSE;//Kaon
	134	if(TMath::Abs(PtProng(0)) < cuts[2] \|\| TMath::Abs(Getd0Prong(0))<cuts[4])return kFALSE;//Pion1
	135	if(TMath::Abs(PtProng(2)) < cuts[2] \|\| TMath::Abs(Getd0Prong(2))<cuts[4])return kFALSE;//Pion2
	136
	137	//DCA
81679460	138	for(Int_t i=0;i<3;i++) if(GetDCA(i)>cuts[11])return kFALSE;
3244eeed	139
	140	//2track cuts
	141	if(fDist12toPrim<cuts[5] \|\| fDist23toPrim<cuts[5])return kFALSE;
	142	if(Getd0Prong(0)Getd0Prong(1)<0. && Getd0Prong(2)Getd0Prong(1)<0.)return kFALSE;
	143
	144	//sec vert
	145	if(fSigmaVert>cuts[6])return kFALSE;
	146
	147	if(DecayLength()<cuts[7])return kFALSE;
	148
	149	if(TMath::Abs(PtProng(0))<cuts[8] && TMath::Abs(PtProng(1))<cuts[8] && TMath::Abs(PtProng(2))<cuts[8])return kFALSE;
	150	if(CosPointingAngle() < cuts[9])return kFALSE;
	151	Double_t sum2=Getd0Prong(0)Getd0Prong(0)+Getd0Prong(1)Getd0Prong(1)+Getd0Prong(2)*Getd0Prong(2);
	152	if(sum2<cuts[10])return kFALSE;
	153	return kTRUE;
	154	}
79250a2b	155	//--------------------------------------------------------------------------
9fce5365	156	Bool_t AliAODRecoDecayHF3Prong::SelectDs(const Double_t *cuts,Int_t &okDsKKpi,Int_t &okDspiKK, Int_t &okMassPhi, Int_t &okMassK0star)
79250a2b	157	const {
79250a2b	158	//
6ea608bf	159	// This function compares the Ds with a set of cuts
6ea608bf	160	// (same variables as D+, for now)
79250a2b	161	//
79250a2b	162	// cuts[0] = inv. mass half width [GeV]
6ea608bf	163	// cuts[1] = pTK [GeV/c]
	164	// cuts[2] = pTPi [GeV/c]
	165	// cuts[3] = d0K [cm] lower limit!
	166	// cuts[4] = d0Pi [cm] lower limit!
	167	// cuts[5] = dist12 (cm)
	168	// cuts[6] = sigmavert (cm)
	169	// cuts[7] = dist prim-sec (cm)
	170	// cuts[8] = pM=Max{pT1,pT2,pT3} (GeV/c)
	171	// cuts[9] = cosThetaPoint
	172	// cuts[10] = Sum d0^2 (cm^2)
	173	// cuts[11] = dca cut (cm)
9fce5365	174	// cuts[12] = max. inv. mass difference(Mphi-MKK) [GeV]
9fce5365	175	// cuts[13] = max. inv. mass difference(MK0*-MKpi) [GeV]
79250a2b	176	//
	177	// If candidate Ds does not pass the cuts return kFALSE
	178	//
	179	Double_t mDsKKpi,mDspiKK;
	180	okDsKKpi=1; okDspiKK=1;
9fce5365	181	okMassPhi=0; okMassK0star=0;
79250a2b	182
	183	Double_t mDsPDG = TDatabasePDG::Instance()->GetParticle(431)->Mass();
	184
	185	mDsKKpi=InvMassDsKKpi();
	186	mDspiKK=InvMassDspiKK();
	187
	188	if(TMath::Abs(mDsKKpi-mDsPDG)>cuts[0]) okDsKKpi = 0;
	189	if(TMath::Abs(mDspiKK-mDsPDG)>cuts[0]) okDspiKK = 0;
	190	if(!okDsKKpi && !okDspiKK) return kFALSE;
	191
6ea608bf	192	//single track
	193	if(TMath::Abs(PtProng(0)) < cuts[1] \|\| TMath::Abs(Getd0Prong(0))<cuts[3])return kFALSE;//Kaon1
	194	if(TMath::Abs(PtProng(1)) < cuts[1] \|\| TMath::Abs(Getd0Prong(1))<cuts[3])return kFALSE;//Kaon2
81679460	195	if(TMath::Abs(PtProng(2)) < cuts[2] \|\| TMath::Abs(Getd0Prong(2))<cuts[4])return kFALSE;//Pion
6ea608bf	196
81679460	197	// cuts on resonant decays (via Phi or K0*)
81679460	198	Double_t mPhiPDG = TDatabasePDG::Instance()->GetParticle(333)->Mass();
9fce5365	199	Double_t mK0starPDG = TDatabasePDG::Instance()->GetParticle(313)->Mass();
	200	if(okDsKKpi){
	201	Double_t mass01phi=InvMass2Prongs(0,1,321,321);
	202	Double_t mass12K0s=InvMass2Prongs(1,2,321,211);
	203	if(TMath::Abs(mass01phi-mPhiPDG)<cuts[12]) okMassPhi=1;
	204	if(TMath::Abs(mass12K0s-mK0starPDG)<cuts[13]) okMassK0star = 1;
	205	if(!okMassPhi && !okMassK0star) okDsKKpi=kFALSE;
	206	}
	207	if(okDspiKK){
	208	Double_t mass01K0s=InvMass2Prongs(0,1,211,321);
	209	Double_t mass12phi=InvMass2Prongs(1,2,321,321);
	210	if(TMath::Abs(mass01K0s-mK0starPDG)<cuts[13]) okMassK0star = 1;
	211	if(TMath::Abs(mass12phi-mPhiPDG)<cuts[12]) okMassPhi=1;
	212	if(!okMassPhi && !okMassK0star) okDspiKK=kFALSE;
	213	}
	214	if(!okDsKKpi && !okDspiKK) return kFALSE;
	215
	216
	217
81679460	218
6ea608bf	219	//DCA
81679460	220	for(Int_t i=0;i<3;i++) if(GetDCA(i)>cuts[11])return kFALSE;
6ea608bf	221
	222	//2track cuts
	223	if(fDist12toPrim<cuts[5] \|\| fDist23toPrim<cuts[5])return kFALSE;
6ea608bf	224
	225	//sec vert
	226	if(fSigmaVert>cuts[6])return kFALSE;
	227
	228	if(DecayLength()<cuts[7])return kFALSE;
	229
	230	if(TMath::Abs(PtProng(0))<cuts[8] && TMath::Abs(PtProng(1))<cuts[8] && TMath::Abs(PtProng(2))<cuts[8])return kFALSE;
	231	if(CosPointingAngle() < cuts[9])return kFALSE;
	232	Double_t sum2=Getd0Prong(0)Getd0Prong(0)+Getd0Prong(1)Getd0Prong(1)+Getd0Prong(2)*Getd0Prong(2);
	233	if(sum2<cuts[10])return kFALSE;
	234
79250a2b	235	return kTRUE;
	236	}
	237	//--------------------------------------------------------------------------
	238	Bool_t AliAODRecoDecayHF3Prong::SelectLc(const Double_t *cuts,Int_t &okLcpKpi,Int_t &okLcpiKp)
	239	const {
	240	//
6ea608bf	241	// This function compares the Lc with a set of cuts
6ea608bf	242	// (same variables as D+, for now)
79250a2b	243	//
79250a2b	244	// cuts[0] = inv. mass half width [GeV]
6ea608bf	245	// cuts[1] = pTP [GeV/c]
	246	// cuts[2] = pTPi and pTK [GeV/c]
	247	// cuts[3] = d0P [cm] lower limit!
	248	// cuts[4] = d0Pi and d0K [cm] lower limit!
	249	// cuts[5] = dist12 (cm)
	250	// cuts[6] = sigmavert (cm)
	251	// cuts[7] = dist prim-sec (cm)
	252	// cuts[8] = pM=Max{pT1,pT2,pT3} (GeV/c)
	253	// cuts[9] = cosThetaPoint
	254	// cuts[10] = Sum d0^2 (cm^2)
	255	// cuts[11] = dca cut (cm)
79250a2b	256	//
	257	// If candidate Lc does not pass the cuts return kFALSE
	258	//
	259	Double_t mLcpKpi,mLcpiKp;
	260	okLcpKpi=1; okLcpiKp=1;
	261
	262	Double_t mLcPDG = TDatabasePDG::Instance()->GetParticle(4122)->Mass();
	263
	264	mLcpKpi=InvMassLcpKpi();
	265	mLcpiKp=InvMassLcpiKp();
	266
	267	if(TMath::Abs(mLcpKpi-mLcPDG)>cuts[0]) okLcpKpi = 0;
	268	if(TMath::Abs(mLcpiKp-mLcPDG)>cuts[0]) okLcpiKp = 0;
	269	if(!okLcpKpi && !okLcpiKp) return kFALSE;
	270
6ea608bf	271	//single track
	272	if(TMath::Abs(PtProng(0)) < cuts[1] \|\| TMath::Abs(Getd0Prong(0))<cuts[3])return kFALSE;//Proton
	273	if(TMath::Abs(PtProng(1)) < cuts[2] \|\| TMath::Abs(Getd0Prong(1))<cuts[4])return kFALSE;//Kaon
	274	if(TMath::Abs(PtProng(2)) < cuts[2] \|\| TMath::Abs(Getd0Prong(2))<cuts[4])return kFALSE;//Pion
	275
	276	//DCA
81679460	277	for(Int_t i=0;i<3;i++) if(GetDCA(i)>cuts[11])return kFALSE;
6ea608bf	278
	279	//2track cuts
	280	if(fDist12toPrim<cuts[5] \|\| fDist23toPrim<cuts[5])return kFALSE;
	281	if(Getd0Prong(0)Getd0Prong(1)<0. && Getd0Prong(2)Getd0Prong(1)<0.)return kFALSE;
	282
	283	//sec vert
	284	if(fSigmaVert>cuts[6])return kFALSE;
	285
	286	if(DecayLength()<cuts[7])return kFALSE;
	287
	288	if(TMath::Abs(PtProng(0))<cuts[8] && TMath::Abs(PtProng(1))<cuts[8] && TMath::Abs(PtProng(2))<cuts[8])return kFALSE;
	289	if(CosPointingAngle() < cuts[9])return kFALSE;
	290	Double_t sum2=Getd0Prong(0)Getd0Prong(0)+Getd0Prong(1)Getd0Prong(1)+Getd0Prong(2)*Getd0Prong(2);
	291	if(sum2<cuts[10])return kFALSE;
	292
79250a2b	293	return kTRUE;
79250a2b	294	}