[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);
	fPtAccCut=new Float_t[fProngs];
	fEtaAccCut=new Float_t[fProngs];
	for(Int_t iP=0; iP<fProngs; iP++){
		fPtAccCut[iP]=0.1;
		fEtaAccCut[iP]=0.9;
	}

}


//_____________________________________
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;

	if (fRecoCandidate->NumberOfFakeDaughters()>0){
		fFake = 0;    // fake candidate
		if (fFakeSelection==1) return bSignAssoc;
	}
	if (fRecoCandidate->NumberOfFakeDaughters()==0){
		fFake = 2;    // non-fake candidate
		if (fFakeSelection==2) 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
	vectorMC[13] = fCentValue;   //reconstructed centrality 
	vectorMC[14] = 1.;           // always filling with 1 at MC level 

	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
	vectorReco[13] = fCentValue; //reconstructed centrality 
	vectorReco[14] = fFake;      // whether the reconstructed candidate was a fake (fFake = 0) or not (fFake = 2) 

	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);
2bf2e62b	46	fPtAccCut=new Float_t[fProngs];
	47	fEtaAccCut=new Float_t[fProngs];
	48	for(Int_t iP=0; iP<fProngs; iP++){
	49	fPtAccCut[iP]=0.1;
	50	fEtaAccCut[iP]=0.9;
	51	}
	52
379592af	53	}
	54
	55
	56	//_____________________________________
f2703bd2	57	AliCFVertexingHF2Prong& AliCFVertexingHF2Prong::operator=(const AliCFVertexingHF2Prong& c)
	58	{
	59	//
	60	// copy constructor
	61	//
379592af	62
f2703bd2	63	if (this != &c) {
	64	AliCFVertexingHF::operator=(c);
	65	}
	66	return *this;
379592af	67	}
	68
	69	//__________________________________________
f2703bd2	70	Bool_t AliCFVertexingHF2Prong::SetRecoCandidateParam(AliAODRecoDecayHF *recoCand)
	71	{
	72	//
	73	// setting the recontructed candidate
	74	//
	75
	76	Bool_t bSignAssoc = kFALSE;
	77	fRecoCandidate = recoCand;
	78	if (!fRecoCandidate) {
	79	AliError("fRecoCandidate not found, problem in assignement\n");
	80	return bSignAssoc;
	81	}
	82
	83	if (fRecoCandidate->GetPrimaryVtx()) AliDebug(3,"fReco Candidate has a pointer to PrimVtx\n");
	84	if (recoCand->GetPrimaryVtx()) AliDebug(3,"Reco Cand has a pointer to PrimVtx\n");
	85
	86	Int_t pdgCand = 421;
	87	Int_t pdgDgD0toKpi[2]={321,211};
	88	Int_t nentries = fmcArray->GetEntriesFast();
379592af	89
f2703bd2	90	AliDebug(3,Form("nentries = %d\n", nentries));
379592af	91
f2703bd2	92	Int_t mcLabel = fRecoCandidate->MatchToMC(pdgCand,fmcArray,2,pdgDgD0toKpi);
f2703bd2	93	if (mcLabel == -1) return bSignAssoc;
fbec9fa9	94
1f780958	95	if (fRecoCandidate->NumberOfFakeDaughters()>0){
	96	fFake = 0; // fake candidate
	97	if (fFakeSelection==1) return bSignAssoc;
	98	}
	99	if (fRecoCandidate->NumberOfFakeDaughters()==0){
	100	fFake = 2; // non-fake candidate
	101	if (fFakeSelection==2) return bSignAssoc;
	102	}
fbec9fa9	103
f2703bd2	104	SetMCLabel(mcLabel);
	105	fmcPartCandidate = dynamic_cast<AliAODMCParticle*>(fmcArray->At(fmcLabel));
	106	if (!fmcPartCandidate){
	107	AliDebug(3,"No part candidate");
	108	return bSignAssoc;
	109	}
	110	bSignAssoc = kTRUE;
	111	return bSignAssoc;
379592af	112	}
	113
	114	//______________________________________________
f2703bd2	115	Bool_t AliCFVertexingHF2Prong::GetGeneratedValuesFromMCParticle(Double_t* vectorMC)
f2703bd2	116	{
379592af	117	//
	118	// collecting all the necessary info (pt, y, cosThetaStar, ptPi, ptKa, cT) from MC particle
	119	//
	120
	121	Bool_t bGenValues = kFALSE;
379592af	122	Double_t vtx1[3] = {0,0,0}; // primary vertex
	123	Double_t vtx2daughter0[3] = {0,0,0}; // secondary vertex from daughter 0
	124	Double_t vtx2daughter1[3] = {0,0,0}; // secondary vertex from daughter 1
	125	fmcPartCandidate->XvYvZv(vtx1); // cm
	126
379592af	127	Int_t daughter0 = fmcPartCandidate->GetDaughter(0);
	128	Int_t daughter1 = fmcPartCandidate->GetDaughter(1);
	129	AliAODMCParticle* mcPartDaughter0 = dynamic_cast<AliAODMCParticle*>(fmcArray->At(daughter0));
	130	AliAODMCParticle* mcPartDaughter1 = dynamic_cast<AliAODMCParticle*>(fmcArray->At(daughter1));
86df816f	131	if(!mcPartDaughter0 \|\| !mcPartDaughter1) return bGenValues;
379592af	132
	133	// getting vertex from daughters
	134	mcPartDaughter0->XvYvZv(vtx2daughter0); // cm
	135	mcPartDaughter1->XvYvZv(vtx2daughter1); //cm
5afa2cf0	136	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	137	AliError("Daughters have different secondary vertex, skipping the track");
f2703bd2	138	return bGenValues;
379592af	139	}
	140
	141	Int_t nprongs = 2;
	142	Short_t charge = 0;
	143	// always instantiate the AliAODRecoDecay with the positive daughter first, the negative second
	144	AliAODMCParticle* positiveDaugh = mcPartDaughter0;
	145	AliAODMCParticle* negativeDaugh = mcPartDaughter1;
	146	if (mcPartDaughter0->GetPdgCode()<0 && mcPartDaughter1->GetPdgCode()>0){
	147	// inverting in case the positive daughter is the second one
	148	positiveDaugh = mcPartDaughter1;
	149	negativeDaugh = mcPartDaughter0;
	150	}
	151	// getting the momentum from the daughters
	152	Double_t px[2] = {positiveDaugh->Px(), negativeDaugh->Px()};
	153	Double_t py[2] = {positiveDaugh->Py(), negativeDaugh->Py()};
	154	Double_t pz[2] = {positiveDaugh->Pz(), negativeDaugh->Pz()};
	155
	156	Double_t d0[2] = {0.,0.};
	157
	158	AliAODRecoDecayHF* decay = new AliAODRecoDecayHF(vtx1,vtx2daughter0,nprongs,charge,px,py,pz,d0);
	159
	160	Double_t cosThetaStar = 0.;
	161	Double_t cosThetaStarD0 = 0.;
	162	Double_t cosThetaStarD0bar = 0.;
	163	cosThetaStarD0 = decay->CosThetaStar(1,421,211,321);
	164	cosThetaStarD0bar = decay->CosThetaStar(0,421,321,211);
	165	if (fmcPartCandidate->GetPdgCode() == 421){ // D0
f2703bd2	166	AliDebug(3, Form("D0, with pdgprong0 = %d, pdgprong1 = %d",mcPartDaughter0->GetPdgCode(),mcPartDaughter1->GetPdgCode()));
f2703bd2	167	cosThetaStar = cosThetaStarD0;
379592af	168	}
379592af	169	else if (fmcPartCandidate->GetPdgCode() == -421){ // D0bar{
f2703bd2	170	AliDebug(3, Form("D0bar, with pdgprong0 = %d, pdgprong1 = %d",mcPartDaughter0->GetPdgCode(),mcPartDaughter1->GetPdgCode()));
f2703bd2	171	cosThetaStar = cosThetaStarD0bar;
379592af	172	}
379592af	173	else{
f2703bd2	174	AliWarning("There are problems!! particle was expected to be either a D0 or a D0bar, check...");
f2703bd2	175	return vectorMC;
379592af	176	}
379592af	177	if (cosThetaStar < -1 \|\| cosThetaStar > 1) {
f2703bd2	178	AliWarning("Invalid value for cosine Theta star, returning");
f2703bd2	179	return bGenValues;
379592af	180	}
	181
	182	//ct
	183	Double_t cT = decay->Ct(421);
	184	// get the pT of the daughters
	185	Double_t pTpi = 0.;
	186	Double_t pTK = 0.;
	187
	188	if (TMath::Abs(mcPartDaughter0->GetPdgCode()) == 211) {
	189	pTpi = mcPartDaughter0->Pt();
	190	pTK = mcPartDaughter1->Pt();
	191	}
	192	else {
	193	pTpi = mcPartDaughter1->Pt();
	194	pTK = mcPartDaughter0->Pt();
	195	}
	196
	197	vectorMC[0] = fmcPartCandidate->Pt();
	198	vectorMC[1] = fmcPartCandidate->Y() ;
	199	vectorMC[2] = cosThetaStar ;
	200	vectorMC[3] = pTpi ;
	201	vectorMC[4] = pTK ;
	202	vectorMC[5] = cT*1.E4 ; // in micron
	203	vectorMC[6] = 0.; // dummy value, meaningless in MC
	204	vectorMC[7] = 0.; // dummy value, meaningless in MC, in micron
	205	vectorMC[8] = 0.; // dummy value, meaningless in MC, in micron
	206	vectorMC[9] = -100000.; // dummy value, meaningless in MC, in micron^2
	207	vectorMC[10] = 1.01; // dummy value, meaningless in MC
	208	vectorMC[11] = fmcPartCandidate->Phi();
	209	vectorMC[12] = fzMCVertex; // z of reconstructed of primary vertex
b7af2639	210	vectorMC[13] = fCentValue; //reconstructed centrality
1f780958	211	vectorMC[14] = 1.; // always filling with 1 at MC level
b7af2639	212
f2703bd2	213	delete decay;
379592af	214	bGenValues = kTRUE;
	215	return bGenValues;
	216	}
379592af	217	//____________________________________________
379592af	218	Bool_t AliCFVertexingHF2Prong::GetRecoValuesFromCandidate(Double_t *vectorReco) const
f2703bd2	219	{
	220	//
	221	// Getting the reconstructed values from the candidate
	222	//
	223
	224	Bool_t bFillRecoValues=kFALSE;
	225
	226	AliAODRecoDecayHF2Prong d0toKpi = (AliAODRecoDecayHF2Prong)fRecoCandidate;
	227
	228	if (d0toKpi->GetPrimaryVtx())AliDebug(3,"d0toKpi has primary vtx\n");
	229	if (fRecoCandidate->GetPrimaryVtx())AliDebug(3,"fRecoCandidate has primary vtx\n");
	230
	231	Double_t pt = d0toKpi->Pt();
	232	Double_t rapidity = d0toKpi->YD0();
	233	Double_t invMass=0.;
	234	Double_t cosThetaStar = 9999.;
	235	Double_t pTpi = 0.;
	236	Double_t pTK = 0.;
	237	Double_t dca = d0toKpi->GetDCA();
	238	Double_t d0pi = 0.;
	239	Double_t d0K = 0.;
	240	Double_t d0xd0 = d0toKpi->Prodd0d0();
	241	Double_t cosPointingAngle = d0toKpi->CosPointingAngle();
	242	Double_t phi = d0toKpi->Phi();
	243	Int_t pdgCode = fmcPartCandidate->GetPdgCode();
	244
	245	if (pdgCode > 0){
	246	cosThetaStar = d0toKpi->CosThetaStarD0();
	247	pTpi = d0toKpi->PtProng(0);
	248	pTK = d0toKpi->PtProng(1);
	249	d0pi = d0toKpi->Getd0Prong(0);
	250	d0K = d0toKpi->Getd0Prong(1);
	251	invMass=d0toKpi->InvMassD0();
	252	}
	253	else {
	254	cosThetaStar = d0toKpi->CosThetaStarD0bar();
	255	pTpi = d0toKpi->PtProng(1);
	256	pTK = d0toKpi->PtProng(0);
	257	d0pi = d0toKpi->Getd0Prong(1);
	258	d0K = d0toKpi->Getd0Prong(0);
	259	invMass= d0toKpi->InvMassD0bar();
	260	}
	261
	262	Double_t cT = d0toKpi->CtD0();
	263
	264	vectorReco[0] = pt;
	265	vectorReco[1] = rapidity;
	266	vectorReco[2] = cosThetaStar;
	267	vectorReco[3] = pTpi;
	268	vectorReco[4] = pTK;
	269	vectorReco[5] = cT*1.E4; // in micron
	270	vectorReco[6] = dca*1.E4; // in micron
	271	vectorReco[7] = d0pi*1.E4; // in micron
	272	vectorReco[8] = d0K*1.E4; // in micron
	273	vectorReco[9] = d0xd0*1.E8; // in micron^2
	274	vectorReco[10] = cosPointingAngle; // in micron
	275	vectorReco[11] = phi;
	276	vectorReco[12] = fzPrimVertex; // z of reconstructed of primary vertex
b7af2639	277	vectorReco[13] = fCentValue; //reconstructed centrality
1f780958	278	vectorReco[14] = fFake; // whether the reconstructed candidate was a fake (fFake = 0) or not (fFake = 2)
b7af2639	279
f2703bd2	280	bFillRecoValues = kTRUE;
379592af	281
f2703bd2	282	return bFillRecoValues;
379592af	283	}
379592af	284
379592af	285	//_____________________________________________________________
	286	Bool_t AliCFVertexingHF2Prong::CheckMCChannelDecay() const
	287	{
f2703bd2	288	//
	289	// checking the MC decay channel
	290	//
	291	Bool_t checkCD = kFALSE;
	292	Int_t daughter0 = fmcPartCandidate->GetDaughter(0);
	293	Int_t daughter1 = fmcPartCandidate->GetDaughter(1);
	294	AliAODMCParticle* mcPartDaughter0 = dynamic_cast<AliAODMCParticle*>(fmcArray->At(daughter0));
	295	AliAODMCParticle* mcPartDaughter1 = dynamic_cast<AliAODMCParticle*>(fmcArray->At(daughter1));
	296
	297	if (!mcPartDaughter0 \|\| !mcPartDaughter1) {
	298	AliDebug (2,"Problems in the MC Daughters\n");
	299	return checkCD;
	300	}
	301
	302	if (!(TMath::Abs(mcPartDaughter0->GetPdgCode())==321 &&
	303	TMath::Abs(mcPartDaughter1->GetPdgCode())==211) &&
	304	!(TMath::Abs(mcPartDaughter0->GetPdgCode())==211 &&
	305	TMath::Abs(mcPartDaughter1->GetPdgCode())==321)) {
	306	AliDebug(2, "The D0 MC doesn't come from a Kpi decay, skipping!!");
	307	return checkCD;
	308	}
	309
	310	checkCD = kTRUE;
	311	return checkCD;
	312
379592af	313	}
379592af	314