[u/mrichter/AliRoot.git] / PWG3 / vertexingHF / AliCFVertexingHF2Prong.cxx

/**************************************************************************
 * Copyright(c) 1998-2009, 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.                  *
 **************************************************************************/

//-----------------------------------------------------------------------
// Class for HF corrections as a function of many variables and step 
// Author : C. Zampolli, CERN
// D. Caffarri, Univ & INFN Padova caffarri@pd.infn.it
// Base class for HF Unfolding - agrelli@uu.nl
//-----------------------------------------------------------------------

#include "AliAODRecoDecayHF2Prong.h"
#include "AliAODMCParticle.h"
#include "AliAODEvent.h"
#include "TClonesArray.h"
#include "AliCFVertexingHF.h"
#include "AliESDtrack.h"
#include "TDatabasePDG.h"

#include "AliCFVertexingHF2Prong.h"
#include "AliCFContainer.h"

ClassImp(AliCFVertexingHF2Prong)


//_________________________________________
  AliCFVertexingHF2Prong::AliCFVertexingHF2Prong(TClonesArray *mcArray, UShort_t originDselection):
	  AliCFVertexingHF(mcArray, originDselection)
{	
	//
	// constructor
	//

	SetNProngs(2);
}


//_____________________________________
AliCFVertexingHF2Prong& AliCFVertexingHF2Prong::operator=(const AliCFVertexingHF2Prong& c)
{
	//
	// copy constructor	
	//

	if  (this != &c) {		
		AliCFVertexingHF::operator=(c);		
	}
	return *this;
}

//__________________________________________
Bool_t AliCFVertexingHF2Prong::SetRecoCandidateParam(AliAODRecoDecayHF *recoCand)
{  
	//
	// setting the recontructed candidate
	//
	
	Bool_t bSignAssoc = kFALSE;	
	fRecoCandidate = recoCand;
	if (!fRecoCandidate) {
		AliError("fRecoCandidate not found, problem in assignement\n");
		return bSignAssoc;
	}
	
	if (fRecoCandidate->GetPrimaryVtx()) AliDebug(3,"fReco Candidate has a pointer to PrimVtx\n");
	if (recoCand->GetPrimaryVtx()) AliDebug(3,"Reco Cand has a pointer to PrimVtx\n");
	
	Int_t pdgCand = 421;
	Int_t pdgDgD0toKpi[2]={321,211};
	Int_t nentries = fmcArray->GetEntriesFast();	

	AliDebug(3,Form("nentries = %d\n", nentries));
 
	Int_t mcLabel = fRecoCandidate->MatchToMC(pdgCand,fmcArray,2,pdgDgD0toKpi);
	if (mcLabel == -1) return bSignAssoc;
	SetMCLabel(mcLabel);
	fmcPartCandidate = dynamic_cast<AliAODMCParticle*>(fmcArray->At(fmcLabel));
	if (!fmcPartCandidate){
		AliDebug(3,"No part candidate");
		return bSignAssoc;
	}	
	bSignAssoc = kTRUE;
	return bSignAssoc;
}

//______________________________________________
Bool_t AliCFVertexingHF2Prong::GetGeneratedValuesFromMCParticle(Double_t* vectorMC) 
{
	// 
	// collecting all the necessary info (pt, y, cosThetaStar, ptPi, ptKa, cT) from MC particle
	//
	
	Bool_t bGenValues = kFALSE;
	Double_t vtx1[3] = {0,0,0};   // primary vertex		
	Double_t vtx2daughter0[3] = {0,0,0};   // secondary vertex from daughter 0
	Double_t vtx2daughter1[3] = {0,0,0};   // secondary vertex from daughter 1
	fmcPartCandidate->XvYvZv(vtx1);  // cm

	Int_t daughter0 = fmcPartCandidate->GetDaughter(0);
	Int_t daughter1 = fmcPartCandidate->GetDaughter(1);
	AliAODMCParticle* mcPartDaughter0 = dynamic_cast<AliAODMCParticle*>(fmcArray->At(daughter0));
	AliAODMCParticle* mcPartDaughter1 = dynamic_cast<AliAODMCParticle*>(fmcArray->At(daughter1));
	if(!mcPartDaughter0 || !mcPartDaughter1) return bGenValues;

	// getting vertex from daughters
	mcPartDaughter0->XvYvZv(vtx2daughter0);  // cm
	mcPartDaughter1->XvYvZv(vtx2daughter1);  //cm
	if (TMath::Abs(vtx2daughter0[0] - vtx2daughter1[0]) > 1E-5 || TMath::Abs(vtx2daughter0[1] - vtx2daughter1[1]) > 1E-5 || TMath::Abs(vtx2daughter0[2] - vtx2daughter1[2])>1E-5) {
		AliError("Daughters have different secondary vertex, skipping the track");
		return bGenValues;
	}
	
	Int_t nprongs = 2;
	Short_t charge = 0;
	// always instantiate the AliAODRecoDecay with the positive daughter first, the negative second
	AliAODMCParticle* positiveDaugh = mcPartDaughter0;
	AliAODMCParticle* negativeDaugh = mcPartDaughter1;
	if (mcPartDaughter0->GetPdgCode()<0 && mcPartDaughter1->GetPdgCode()>0){
		// inverting in case the positive daughter is the second one
		positiveDaugh = mcPartDaughter1;
		negativeDaugh = mcPartDaughter0;
	}
	// getting the momentum from the daughters
	Double_t px[2] = {positiveDaugh->Px(), negativeDaugh->Px()};		
	Double_t py[2] = {positiveDaugh->Py(), negativeDaugh->Py()};		
	Double_t pz[2] = {positiveDaugh->Pz(), negativeDaugh->Pz()};
	
	Double_t d0[2] = {0.,0.};		
	
	AliAODRecoDecayHF* decay = new AliAODRecoDecayHF(vtx1,vtx2daughter0,nprongs,charge,px,py,pz,d0);
	
	Double_t cosThetaStar = 0.;
	Double_t cosThetaStarD0 = 0.;
	Double_t cosThetaStarD0bar = 0.;
	cosThetaStarD0 = decay->CosThetaStar(1,421,211,321);
	cosThetaStarD0bar = decay->CosThetaStar(0,421,321,211);
	if (fmcPartCandidate->GetPdgCode() == 421){  // D0
		AliDebug(3, Form("D0, with pdgprong0 = %d, pdgprong1 = %d",mcPartDaughter0->GetPdgCode(),mcPartDaughter1->GetPdgCode()));
		cosThetaStar = cosThetaStarD0;
	}
	else if (fmcPartCandidate->GetPdgCode() == -421){  // D0bar{
		AliDebug(3, Form("D0bar, with pdgprong0 = %d, pdgprong1 = %d",mcPartDaughter0->GetPdgCode(),mcPartDaughter1->GetPdgCode()));
		cosThetaStar = cosThetaStarD0bar;
	}
	else{
		AliWarning("There are problems!! particle was expected to be either a D0 or a D0bar, check...");
		return vectorMC;
	}
	if (cosThetaStar < -1 || cosThetaStar > 1) {
		AliWarning("Invalid value for cosine Theta star, returning");
		return bGenValues;
	}
		
	//ct
	Double_t cT = decay->Ct(421);
	// get the pT of the daughters
	Double_t pTpi = 0.;
	Double_t pTK = 0.;
	
	if (TMath::Abs(mcPartDaughter0->GetPdgCode()) == 211) {
		pTpi = mcPartDaughter0->Pt();
		pTK = mcPartDaughter1->Pt();
	}
	else {
		pTpi = mcPartDaughter1->Pt();
		pTK = mcPartDaughter0->Pt();
	}
	
	vectorMC[0] = fmcPartCandidate->Pt();
	vectorMC[1] = fmcPartCandidate->Y() ;
	vectorMC[2] = cosThetaStar ;
	vectorMC[3] = pTpi ;
	vectorMC[4] = pTK ;
	vectorMC[5] = cT*1.E4 ;  // in micron
	vectorMC[6] = 0.;   // dummy value, meaningless in MC
	vectorMC[7] = 0.;   // dummy value, meaningless in MC, in micron
	vectorMC[8] = 0.;   // dummy value, meaningless in MC, in micron
	vectorMC[9] = -100000.; // dummy value, meaningless in MC, in micron^2
	vectorMC[10] = 1.01;    // dummy value, meaningless in MC
	vectorMC[11] = fmcPartCandidate->Phi(); 
	vectorMC[12] = fzMCVertex;    // z of reconstructed of primary vertex
	delete decay;
	bGenValues = kTRUE;
	return bGenValues;
}
//____________________________________________
Bool_t AliCFVertexingHF2Prong::GetRecoValuesFromCandidate(Double_t *vectorReco) const
{
	//
	// Getting the reconstructed values from the candidate
	// 
	
	Bool_t bFillRecoValues=kFALSE;
	
	AliAODRecoDecayHF2Prong *d0toKpi = (AliAODRecoDecayHF2Prong*)fRecoCandidate;
	
	if (d0toKpi->GetPrimaryVtx())AliDebug(3,"d0toKpi has primary vtx\n");
	if (fRecoCandidate->GetPrimaryVtx())AliDebug(3,"fRecoCandidate has primary vtx\n");
	
	Double_t pt = d0toKpi->Pt();
	Double_t rapidity = d0toKpi->YD0();
	Double_t invMass=0.;
	Double_t cosThetaStar = 9999.;
	Double_t pTpi = 0.;
	Double_t pTK = 0.;
	Double_t dca = d0toKpi->GetDCA();
	Double_t d0pi = 0.;
	Double_t d0K = 0.;
	Double_t d0xd0 = d0toKpi->Prodd0d0();
	Double_t cosPointingAngle = d0toKpi->CosPointingAngle();
	Double_t phi = d0toKpi->Phi();
	Int_t pdgCode = fmcPartCandidate->GetPdgCode();
       
	if (pdgCode > 0){
		cosThetaStar = d0toKpi->CosThetaStarD0();
		pTpi = d0toKpi->PtProng(0);
		pTK = d0toKpi->PtProng(1);
		d0pi = d0toKpi->Getd0Prong(0);
		d0K = d0toKpi->Getd0Prong(1);
		invMass=d0toKpi->InvMassD0();
	}
	else {
		cosThetaStar = d0toKpi->CosThetaStarD0bar();
		pTpi = d0toKpi->PtProng(1);
		pTK = d0toKpi->PtProng(0);
		d0pi = d0toKpi->Getd0Prong(1);
		d0K = d0toKpi->Getd0Prong(0);
		invMass= d0toKpi->InvMassD0bar();
	}
	
	Double_t cT = d0toKpi->CtD0();	
	
	vectorReco[0] = pt;
	vectorReco[1] = rapidity;
	vectorReco[2] = cosThetaStar;
	vectorReco[3] = pTpi;
	vectorReco[4] = pTK;
	vectorReco[5] = cT*1.E4;  // in micron
	vectorReco[6] = dca*1.E4;  // in micron
	vectorReco[7] = d0pi*1.E4;  // in micron
	vectorReco[8] = d0K*1.E4;  // in micron
	vectorReco[9] = d0xd0*1.E8;  // in micron^2
	vectorReco[10] = cosPointingAngle;  // in micron
	vectorReco[11] = phi;  
	vectorReco[12] = fzPrimVertex;    // z of reconstructed of primary vertex
	bFillRecoValues = kTRUE;

	return bFillRecoValues;
}

//_____________________________________________________________
Bool_t AliCFVertexingHF2Prong::CheckMCChannelDecay() const
{ 
	//
	// checking the MC decay channel
	//
	Bool_t checkCD = kFALSE;
	Int_t daughter0 = fmcPartCandidate->GetDaughter(0);
	Int_t daughter1 = fmcPartCandidate->GetDaughter(1);
	AliAODMCParticle* mcPartDaughter0 = dynamic_cast<AliAODMCParticle*>(fmcArray->At(daughter0));
	AliAODMCParticle* mcPartDaughter1 = dynamic_cast<AliAODMCParticle*>(fmcArray->At(daughter1));
	
	if (!mcPartDaughter0 || !mcPartDaughter1) {
		AliDebug (2,"Problems in the MC Daughters\n");
		return checkCD;
	}
	
	if (!(TMath::Abs(mcPartDaughter0->GetPdgCode())==321 &&
	      TMath::Abs(mcPartDaughter1->GetPdgCode())==211) && 
	    !(TMath::Abs(mcPartDaughter0->GetPdgCode())==211 &&
	      TMath::Abs(mcPartDaughter1->GetPdgCode())==321)) {
		AliDebug(2, "The D0 MC doesn't come from a Kpi decay, skipping!!");
		return checkCD;  
	}
	
	checkCD = kTRUE;
	return checkCD;
	
}
Commit	Line	Data
379592af	1	/**************************************************************************
	2	* Copyright(c) 1998-2009, 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	// Class for HF corrections as a function of many variables and step
	18	// Author : C. Zampolli, CERN
	19	// D. Caffarri, Univ & INFN Padova caffarri@pd.infn.it
	20	// Base class for HF Unfolding - agrelli@uu.nl
	21	//-----------------------------------------------------------------------
	22
	23	#include "AliAODRecoDecayHF2Prong.h"
	24	#include "AliAODMCParticle.h"
	25	#include "AliAODEvent.h"
	26	#include "TClonesArray.h"
	27	#include "AliCFVertexingHF.h"
	28	#include "AliESDtrack.h"
	29	#include "TDatabasePDG.h"
	30
	31	#include "AliCFVertexingHF2Prong.h"
	32	#include "AliCFContainer.h"
	33
	34	ClassImp(AliCFVertexingHF2Prong)
	35
	36
	37	//_________________________________________
	38	AliCFVertexingHF2Prong::AliCFVertexingHF2Prong(TClonesArray *mcArray, UShort_t originDselection):
f2703bd2	39	AliCFVertexingHF(mcArray, originDselection)
379592af	40	{
f2703bd2	41	//
	42	// constructor
	43	//
	44
	45	SetNProngs(2);
379592af	46	}
	47
	48
	49	//_____________________________________
f2703bd2	50	AliCFVertexingHF2Prong& AliCFVertexingHF2Prong::operator=(const AliCFVertexingHF2Prong& c)
	51	{
	52	//
	53	// copy constructor
	54	//
379592af	55
f2703bd2	56	if (this != &c) {
	57	AliCFVertexingHF::operator=(c);
	58	}
	59	return *this;
379592af	60	}
	61
	62	//__________________________________________
f2703bd2	63	Bool_t AliCFVertexingHF2Prong::SetRecoCandidateParam(AliAODRecoDecayHF *recoCand)
	64	{
	65	//
	66	// setting the recontructed candidate
	67	//
	68
	69	Bool_t bSignAssoc = kFALSE;
	70	fRecoCandidate = recoCand;
	71	if (!fRecoCandidate) {
	72	AliError("fRecoCandidate not found, problem in assignement\n");
	73	return bSignAssoc;
	74	}
	75
	76	if (fRecoCandidate->GetPrimaryVtx()) AliDebug(3,"fReco Candidate has a pointer to PrimVtx\n");
	77	if (recoCand->GetPrimaryVtx()) AliDebug(3,"Reco Cand has a pointer to PrimVtx\n");
	78
	79	Int_t pdgCand = 421;
	80	Int_t pdgDgD0toKpi[2]={321,211};
	81	Int_t nentries = fmcArray->GetEntriesFast();
379592af	82
f2703bd2	83	AliDebug(3,Form("nentries = %d\n", nentries));
379592af	84
f2703bd2	85	Int_t mcLabel = fRecoCandidate->MatchToMC(pdgCand,fmcArray,2,pdgDgD0toKpi);
	86	if (mcLabel == -1) return bSignAssoc;
	87	SetMCLabel(mcLabel);
	88	fmcPartCandidate = dynamic_cast<AliAODMCParticle*>(fmcArray->At(fmcLabel));
	89	if (!fmcPartCandidate){
	90	AliDebug(3,"No part candidate");
	91	return bSignAssoc;
	92	}
	93	bSignAssoc = kTRUE;
	94	return bSignAssoc;
379592af	95	}
	96
	97	//______________________________________________
f2703bd2	98	Bool_t AliCFVertexingHF2Prong::GetGeneratedValuesFromMCParticle(Double_t* vectorMC)
f2703bd2	99	{
379592af	100	//
	101	// collecting all the necessary info (pt, y, cosThetaStar, ptPi, ptKa, cT) from MC particle
	102	//
	103
	104	Bool_t bGenValues = kFALSE;
379592af	105	Double_t vtx1[3] = {0,0,0}; // primary vertex
	106	Double_t vtx2daughter0[3] = {0,0,0}; // secondary vertex from daughter 0
	107	Double_t vtx2daughter1[3] = {0,0,0}; // secondary vertex from daughter 1
	108	fmcPartCandidate->XvYvZv(vtx1); // cm
	109
379592af	110	Int_t daughter0 = fmcPartCandidate->GetDaughter(0);
	111	Int_t daughter1 = fmcPartCandidate->GetDaughter(1);
	112	AliAODMCParticle* mcPartDaughter0 = dynamic_cast<AliAODMCParticle*>(fmcArray->At(daughter0));
	113	AliAODMCParticle* mcPartDaughter1 = dynamic_cast<AliAODMCParticle*>(fmcArray->At(daughter1));
86df816f	114	if(!mcPartDaughter0 \|\| !mcPartDaughter1) return bGenValues;
379592af	115
	116	// getting vertex from daughters
	117	mcPartDaughter0->XvYvZv(vtx2daughter0); // cm
	118	mcPartDaughter1->XvYvZv(vtx2daughter1); //cm
5afa2cf0	119	if (TMath::Abs(vtx2daughter0[0] - vtx2daughter1[0]) > 1E-5 \|\| TMath::Abs(vtx2daughter0[1] - vtx2daughter1[1]) > 1E-5 \|\| TMath::Abs(vtx2daughter0[2] - vtx2daughter1[2])>1E-5) {
f2703bd2	120	AliError("Daughters have different secondary vertex, skipping the track");
f2703bd2	121	return bGenValues;
379592af	122	}
	123
	124	Int_t nprongs = 2;
	125	Short_t charge = 0;
	126	// always instantiate the AliAODRecoDecay with the positive daughter first, the negative second
	127	AliAODMCParticle* positiveDaugh = mcPartDaughter0;
	128	AliAODMCParticle* negativeDaugh = mcPartDaughter1;
	129	if (mcPartDaughter0->GetPdgCode()<0 && mcPartDaughter1->GetPdgCode()>0){
	130	// inverting in case the positive daughter is the second one
	131	positiveDaugh = mcPartDaughter1;
	132	negativeDaugh = mcPartDaughter0;
	133	}
	134	// getting the momentum from the daughters
	135	Double_t px[2] = {positiveDaugh->Px(), negativeDaugh->Px()};
	136	Double_t py[2] = {positiveDaugh->Py(), negativeDaugh->Py()};
	137	Double_t pz[2] = {positiveDaugh->Pz(), negativeDaugh->Pz()};
	138
	139	Double_t d0[2] = {0.,0.};
	140
	141	AliAODRecoDecayHF* decay = new AliAODRecoDecayHF(vtx1,vtx2daughter0,nprongs,charge,px,py,pz,d0);
	142
	143	Double_t cosThetaStar = 0.;
	144	Double_t cosThetaStarD0 = 0.;
	145	Double_t cosThetaStarD0bar = 0.;
	146	cosThetaStarD0 = decay->CosThetaStar(1,421,211,321);
	147	cosThetaStarD0bar = decay->CosThetaStar(0,421,321,211);
	148	if (fmcPartCandidate->GetPdgCode() == 421){ // D0
f2703bd2	149	AliDebug(3, Form("D0, with pdgprong0 = %d, pdgprong1 = %d",mcPartDaughter0->GetPdgCode(),mcPartDaughter1->GetPdgCode()));
f2703bd2	150	cosThetaStar = cosThetaStarD0;
379592af	151	}
379592af	152	else if (fmcPartCandidate->GetPdgCode() == -421){ // D0bar{
f2703bd2	153	AliDebug(3, Form("D0bar, with pdgprong0 = %d, pdgprong1 = %d",mcPartDaughter0->GetPdgCode(),mcPartDaughter1->GetPdgCode()));
f2703bd2	154	cosThetaStar = cosThetaStarD0bar;
379592af	155	}
379592af	156	else{
f2703bd2	157	AliWarning("There are problems!! particle was expected to be either a D0 or a D0bar, check...");
f2703bd2	158	return vectorMC;
379592af	159	}
379592af	160	if (cosThetaStar < -1 \|\| cosThetaStar > 1) {
f2703bd2	161	AliWarning("Invalid value for cosine Theta star, returning");
f2703bd2	162	return bGenValues;
379592af	163	}
	164
	165	//ct
	166	Double_t cT = decay->Ct(421);
	167	// get the pT of the daughters
	168	Double_t pTpi = 0.;
	169	Double_t pTK = 0.;
	170
	171	if (TMath::Abs(mcPartDaughter0->GetPdgCode()) == 211) {
	172	pTpi = mcPartDaughter0->Pt();
	173	pTK = mcPartDaughter1->Pt();
	174	}
	175	else {
	176	pTpi = mcPartDaughter1->Pt();
	177	pTK = mcPartDaughter0->Pt();
	178	}
	179
	180	vectorMC[0] = fmcPartCandidate->Pt();
	181	vectorMC[1] = fmcPartCandidate->Y() ;
	182	vectorMC[2] = cosThetaStar ;
	183	vectorMC[3] = pTpi ;
	184	vectorMC[4] = pTK ;
	185	vectorMC[5] = cT*1.E4 ; // in micron
	186	vectorMC[6] = 0.; // dummy value, meaningless in MC
	187	vectorMC[7] = 0.; // dummy value, meaningless in MC, in micron
	188	vectorMC[8] = 0.; // dummy value, meaningless in MC, in micron
	189	vectorMC[9] = -100000.; // dummy value, meaningless in MC, in micron^2
	190	vectorMC[10] = 1.01; // dummy value, meaningless in MC
	191	vectorMC[11] = fmcPartCandidate->Phi();
	192	vectorMC[12] = fzMCVertex; // z of reconstructed of primary vertex
f2703bd2	193	delete decay;
379592af	194	bGenValues = kTRUE;
	195	return bGenValues;
	196	}
379592af	197	//____________________________________________
379592af	198	Bool_t AliCFVertexingHF2Prong::GetRecoValuesFromCandidate(Double_t *vectorReco) const
f2703bd2	199	{
	200	//
	201	// Getting the reconstructed values from the candidate
	202	//
	203
	204	Bool_t bFillRecoValues=kFALSE;
	205
	206	AliAODRecoDecayHF2Prong d0toKpi = (AliAODRecoDecayHF2Prong)fRecoCandidate;
	207
	208	if (d0toKpi->GetPrimaryVtx())AliDebug(3,"d0toKpi has primary vtx\n");
	209	if (fRecoCandidate->GetPrimaryVtx())AliDebug(3,"fRecoCandidate has primary vtx\n");
	210
	211	Double_t pt = d0toKpi->Pt();
	212	Double_t rapidity = d0toKpi->YD0();
	213	Double_t invMass=0.;
	214	Double_t cosThetaStar = 9999.;
	215	Double_t pTpi = 0.;
	216	Double_t pTK = 0.;
	217	Double_t dca = d0toKpi->GetDCA();
	218	Double_t d0pi = 0.;
	219	Double_t d0K = 0.;
	220	Double_t d0xd0 = d0toKpi->Prodd0d0();
	221	Double_t cosPointingAngle = d0toKpi->CosPointingAngle();
	222	Double_t phi = d0toKpi->Phi();
	223	Int_t pdgCode = fmcPartCandidate->GetPdgCode();
	224
	225	if (pdgCode > 0){
	226	cosThetaStar = d0toKpi->CosThetaStarD0();
	227	pTpi = d0toKpi->PtProng(0);
	228	pTK = d0toKpi->PtProng(1);
	229	d0pi = d0toKpi->Getd0Prong(0);
	230	d0K = d0toKpi->Getd0Prong(1);
	231	invMass=d0toKpi->InvMassD0();
	232	}
	233	else {
	234	cosThetaStar = d0toKpi->CosThetaStarD0bar();
	235	pTpi = d0toKpi->PtProng(1);
	236	pTK = d0toKpi->PtProng(0);
	237	d0pi = d0toKpi->Getd0Prong(1);
	238	d0K = d0toKpi->Getd0Prong(0);
	239	invMass= d0toKpi->InvMassD0bar();
	240	}
	241
	242	Double_t cT = d0toKpi->CtD0();
	243
	244	vectorReco[0] = pt;
	245	vectorReco[1] = rapidity;
	246	vectorReco[2] = cosThetaStar;
	247	vectorReco[3] = pTpi;
	248	vectorReco[4] = pTK;
	249	vectorReco[5] = cT*1.E4; // in micron
	250	vectorReco[6] = dca*1.E4; // in micron
	251	vectorReco[7] = d0pi*1.E4; // in micron
	252	vectorReco[8] = d0K*1.E4; // in micron
	253	vectorReco[9] = d0xd0*1.E8; // in micron^2
	254	vectorReco[10] = cosPointingAngle; // in micron
	255	vectorReco[11] = phi;
	256	vectorReco[12] = fzPrimVertex; // z of reconstructed of primary vertex
	257	bFillRecoValues = kTRUE;
379592af	258
f2703bd2	259	return bFillRecoValues;
379592af	260	}
379592af	261
379592af	262	//_____________________________________________________________
	263	Bool_t AliCFVertexingHF2Prong::CheckMCChannelDecay() const
	264	{
f2703bd2	265	//
	266	// checking the MC decay channel
	267	//
	268	Bool_t checkCD = kFALSE;
	269	Int_t daughter0 = fmcPartCandidate->GetDaughter(0);
	270	Int_t daughter1 = fmcPartCandidate->GetDaughter(1);
	271	AliAODMCParticle* mcPartDaughter0 = dynamic_cast<AliAODMCParticle*>(fmcArray->At(daughter0));
	272	AliAODMCParticle* mcPartDaughter1 = dynamic_cast<AliAODMCParticle*>(fmcArray->At(daughter1));
	273
	274	if (!mcPartDaughter0 \|\| !mcPartDaughter1) {
	275	AliDebug (2,"Problems in the MC Daughters\n");
	276	return checkCD;
	277	}
	278
	279	if (!(TMath::Abs(mcPartDaughter0->GetPdgCode())==321 &&
	280	TMath::Abs(mcPartDaughter1->GetPdgCode())==211) &&
	281	!(TMath::Abs(mcPartDaughter0->GetPdgCode())==211 &&
	282	TMath::Abs(mcPartDaughter1->GetPdgCode())==321)) {
	283	AliDebug(2, "The D0 MC doesn't come from a Kpi decay, skipping!!");
	284	return checkCD;
	285	}
	286
	287	checkCD = kTRUE;
	288	return checkCD;
	289
379592af	290	}
379592af	291