[u/mrichter/AliRoot.git] / EVGEN / AliGenHijing.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.                  *
 **************************************************************************/

/*
$Log$
Revision 1.1  2000/06/09 20:47:27  morsch
AliGenerator interface class to HIJING using THijing (test version)

*/

#include "AliGenHijing.h"
#include "AliRun.h"

#include <TArrayI.h>
#include <TParticle.h>
#include <THijing.h>

 ClassImp(AliGenHijing)

AliGenHijing::AliGenHijing()
                 :AliGenerator()
{
// Constructor
}

AliGenHijing::AliGenHijing(Int_t npart)
                 :AliGenerator(npart)
{
// Default PbPb collisions at 5. 5 TeV
//
    SetEnergyCMS();
    SetImpactParameterRange();
    SetTarget();
    SetProjectile();
    fKeep=0;
    fQuench=1;
    fShadowing=1;
    fTrigger=0;
    fDecaysOff=1;
    fEvaluate=0;
    fSelectAll=0;
    fFlavor=0;
}

AliGenHijing::AliGenHijing(const AliGenHijing & Hijing)
{
// copy constructor
}


AliGenHijing::~AliGenHijing()
{
// Destructor
}

void AliGenHijing::Init()
{
// Initialisation
    SetMC(new THijing(fEnergyCMS, fFrame, fProjectile, fTarget, 
		      fAProjectile, fZProjectile, fATarget, fZTarget, 
		      fMinImpactParam, fMaxImpactParam));

    fHijing=(THijing*) fgMCEvGen;
    fHijing->Initialize();
    fHijing->SetIHPR2(3,  fTrigger);
    fHijing->SetIHPR2(4,  fQuench);
    fHijing->SetIHPR2(6,  fShadowing);
    fHijing->SetIHPR2(12, fDecaysOff);    
    fHijing->SetIHPR2(21, fKeep);
//
    if (fEvaluate) EvaluateCrossSections();
}

void AliGenHijing::Generate()
{
// Generate one event

    Float_t polar[3] =   {0,0,0};
    Float_t origin[3]=   {0,0,0};
    Float_t origin0[3]=  {0,0,0};
    Float_t p[3], random[6];
    Float_t tof;

    static TClonesArray *particles;
//  converts from mm/c to s
    const Float_t kconv=0.001/2.999792458e8;
//
    Int_t nt=0;
    Int_t jev=0;
    Int_t j, kf, ks, imo;
    kf=0;
    
    if(!particles) particles=new TClonesArray("TParticle",10000);
    
    fTrials=0;
    for (j=0;j<3;j++) origin0[j]=fOrigin[j];
    if(fVertexSmear==perEvent) {
	gMC->Rndm(random,6);
	for (j=0;j<3;j++) {
	    origin0[j]+=fOsigma[j]*TMath::Cos(2*random[2*j]*TMath::Pi())*
		TMath::Sqrt(-2*TMath::Log(random[2*j+1]));
//	    fHijing->SetMSTP(151,0);
	}
    } else if (fVertexSmear==perTrack) {
//	fHijing->SetMSTP(151,0);
	for (j=0;j<3;j++) {
//	    fHijing->SetPARP(151+j, fOsigma[j]*10.);
	}
    }
    while(1)
    {

	fHijing->GenerateEvent();
	fTrials++;
	fHijing->ImportParticles(particles,"All");
	Int_t np = particles->GetEntriesFast();
	printf("\n **************************************************%d\n",np);
	Int_t nc=0;
	if (np == 0 ) continue;
	Int_t i;
	Int_t * newPos = new Int_t[np];
	for (i = 0; i<np; i++) *(newPos+i)=i;
	
	for (i = 0; i<np; i++) {
	    TParticle *  iparticle       = (TParticle *) particles->At(i);

	    Bool_t  hasMother            =  (iparticle->GetFirstMother()   >=0);
	    Bool_t  hasDaughter          =  (iparticle->GetFirstDaughter() >=0);
	    Bool_t  selected             =  kTRUE;
	    Bool_t  hasSelectedDaughters =  kFALSE;


	    kf        = iparticle->GetPdgCode();
	    if (!fSelectAll) selected = KinematicSelection(iparticle)&&SelectFlavor(kf);
	    if (hasDaughter && !selected) hasSelectedDaughters = DaughtersSelection(iparticle, particles);
//
// Put particle on the stack if it is either selected or it is the mother of at least one seleted particle
//

	    if (selected || hasSelectedDaughters) {
		nc++;
		ks        = iparticle->GetStatusCode();
		p[0]=iparticle->Px();
		p[1]=iparticle->Py();
		p[2]=iparticle->Pz();
		origin[0]=origin0[0]+iparticle->Vx()/10;
		origin[1]=origin0[1]+iparticle->Vy()/10;
		origin[2]=origin0[2]+iparticle->Vz()/10;
		tof=kconv*iparticle->T();
		imo=-1;
		if (hasMother) {
		    imo=iparticle->GetFirstMother();
		    imo=*(newPos+imo);
		}
		
//		printf("\n selected iparent %d %d %d \n",i, kf, imo);
		if (hasDaughter) {
		    gAlice->SetTrack(0,imo,kf,p,origin,polar,
				     tof,"Primary",nt);
		} else {
		    gAlice->SetTrack(fTrackIt,imo,kf,p,origin,polar,
				     tof,"Secondary",nt);
		}
		*(newPos+i)=nt;
	    } // selected
	} // particle loop 
	delete newPos;
	printf("\n I've put %i particles on the stack \n",nc);
	if (nc > 0) {
	    jev+=nc;
	    if (jev >= fNpart || fNpart == -1) {
		fKineBias=Float_t(fNpart)/Float_t(fTrials);
		printf("\n Trials: %i %i %i\n",fTrials, fNpart, jev);
		break;
	    }
	}
    } // event loop
}

Bool_t AliGenHijing::KinematicSelection(TParticle *particle)
{
// Perform kinematic selection
    Float_t px=particle->Px();
    Float_t py=particle->Py();
    Float_t pz=particle->Pz();
    Float_t  e=particle->Energy();

//
//  transverse momentum cut    
    Float_t pt=TMath::Sqrt(px*px+py*py);
    if (pt > fPtMax || pt < fPtMin) 
    {
//	printf("\n failed pt cut %f %f %f \n",pt,fPtMin,fPtMax);
	return kFALSE;
    }
//
// momentum cut
    Float_t p=TMath::Sqrt(px*px+py*py+pz*pz);
    if (p > fPMax || p < fPMin) 
    {
//	printf("\n failed p cut %f %f %f \n",p,fPMin,fPMax);
	return kFALSE;
    }
    
//
// theta cut
    Float_t  theta = Float_t(TMath::ATan2(Double_t(pt),Double_t(pz)));
    if (theta > fThetaMax || theta < fThetaMin) 
    {
	
//    	printf("\n failed theta cut %f %f %f \n",theta,fThetaMin,fThetaMax);
	return kFALSE;
    }

//
// rapidity cut
    Float_t y = 0.5*TMath::Log((e+pz)/(e-pz));
    if (y > fYMax || y < fYMin)
    {
//	printf("\n failed y cut %f %f %f \n",y,fYMin,fYMax);
	return kFALSE;
    }

//
// phi cut
    Float_t phi=Float_t(TMath::ATan2(Double_t(py),Double_t(px)));
    if (phi > fPhiMax || phi < fPhiMin)
    {
//	printf("\n failed phi cut %f %f %f \n",phi,fPhiMin,fPhiMax);
	return kFALSE;
    }

    return kTRUE;
}

void AliGenHijing::KeepFullEvent()
{
    fKeep=1;
}

void AliGenHijing::EvaluateCrossSections()
{
//     Glauber Calculation of geometrical x-section
//
    Float_t xTot=0.;          // barn
    Float_t xTotHard=0.;      // barn 
    Float_t xPart=0.;         // barn
    Float_t xPartHard=0.;     // barn 
    Float_t sigmaHard=0.1;    // mbarn
    Float_t bMin=0.;
    Float_t bMax=fHijing->GetHIPR1(34)+fHijing->GetHIPR1(35);
    const Float_t kdib=0.2;
    Int_t   kMax=Int_t((bMax-bMin)/kdib)+1;


    printf("\n Projectile Radius (fm): %f \n",fHijing->GetHIPR1(34));
    printf("\n Target     Radius (fm): %f \n",fHijing->GetHIPR1(35));    
    Int_t i;
    Float_t oldvalue=0.;
    
    for (i=0; i<kMax; i++)
    {
	Float_t xb=bMin+i*kdib;
	Float_t ov;
	ov=fHijing->Profile(xb);
	Float_t gb =  2.*0.01*fHijing->GetHIPR1(40)*kdib*xb*(1.-TMath::Exp(-fHijing->GetHINT1(12)*ov));
	Float_t gbh = 2.*0.01*fHijing->GetHIPR1(40)*kdib*xb*sigmaHard*ov;
	xTot+=gb;
	xTotHard+=gbh;
	if (xb > fMinImpactParam && xb < fMaxImpactParam)
	{
	    xPart+=gb;
	    xPartHard+=gbh;
	}
	
	if ((xTot-oldvalue)/oldvalue<0.0001) break;
	oldvalue=xTot;
	printf("\n Total cross section (barn): %d %f %f \n",i, xb, xTot);
	printf("\n Hard  cross section (barn): %d %f %f \n\n",i, xb, xTotHard);
    }
    printf("\n Total cross section (barn): %f \n",xTot);
    printf("\n Hard  cross section (barn): %f \n \n",xTotHard);
    printf("\n Partial       cross section (barn): %f %f \n",xPart, xPart/xTot*100.);
    printf("\n Partial  hard cross section (barn): %f %f \n",xPartHard, xPartHard/xTotHard*100.);
}

Bool_t AliGenHijing::DaughtersSelection(TParticle* iparticle, TClonesArray* particles)
{
//
// Looks recursively if one of the daughters has been selected
//
//    printf("\n Consider daughters %d:",iparticle->GetPdgCode());
    Int_t imin=-1;
    Int_t imax=-1;
    Int_t i;
    Bool_t hasDaughters= (iparticle->GetFirstDaughter() >=0);
    Bool_t selected=kFALSE;
    if (hasDaughters) {
	imin=iparticle->GetFirstDaughter();
	imax=iparticle->GetLastDaughter();       
	for (i=imin; i<= imax; i++){
	    TParticle *  jparticle       = (TParticle *) particles->At(i);	
	    Int_t ip=jparticle->GetPdgCode();
	    if (KinematicSelection(jparticle)&&SelectFlavor(ip)) {selected=kTRUE; break;}
	    if (DaughtersSelection(jparticle, particles)) {selected=kTRUE; break; }
	}
    } else {
	return kFALSE;
    }

    return selected;
}


Bool_t AliGenHijing::SelectFlavor(Int_t pid)
{
// Select flavor of particle
// 0: all
// 4: charm and beauty
// 5: beauty
    if (fFlavor == 0) return kTRUE;
    
    Int_t ifl=TMath::Abs(pid/100);
    if (ifl > 10) ifl/=10;
    return ((fFlavor==4 && (ifl==4 || ifl==5))  || 
	    (fFlavor==5 &&  ifl==5));

}

AliGenHijing& AliGenHijing::operator=(const  AliGenHijing& rhs)
{
// Assignment operator
    return *this;
}
Commit	Line	Data
	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	$Log$
	18	Revision 1.1 2000/06/09 20:47:27 morsch
	19	AliGenerator interface class to HIJING using THijing (test version)
	20
	21	*/
	22
	23	#include "AliGenHijing.h"
	24	#include "AliRun.h"
	25
	26	#include <TArrayI.h>
	27	#include <TParticle.h>
	28	#include <THijing.h>
	29
	30	ClassImp(AliGenHijing)
	31
	32	AliGenHijing::AliGenHijing()
	33	:AliGenerator()
	34	{
	35	// Constructor
	36	}
	37
	38	AliGenHijing::AliGenHijing(Int_t npart)
	39	:AliGenerator(npart)
	40	{
	41	// Default PbPb collisions at 5. 5 TeV
	42	//
	43	SetEnergyCMS();
	44	SetImpactParameterRange();
	45	SetTarget();
	46	SetProjectile();
	47	fKeep=0;
	48	fQuench=1;
	49	fShadowing=1;
	50	fTrigger=0;
	51	fDecaysOff=1;
	52	fEvaluate=0;
	53	fSelectAll=0;
	54	fFlavor=0;
	55	}
	56
	57	AliGenHijing::AliGenHijing(const AliGenHijing & Hijing)
	58	{
	59	// copy constructor
	60	}
	61
	62
	63	AliGenHijing::~AliGenHijing()
	64	{
	65	// Destructor
	66	}
	67
	68	void AliGenHijing::Init()
	69	{
	70	// Initialisation
	71	SetMC(new THijing(fEnergyCMS, fFrame, fProjectile, fTarget,
	72	fAProjectile, fZProjectile, fATarget, fZTarget,
	73	fMinImpactParam, fMaxImpactParam));
	74
	75	fHijing=(THijing*) fgMCEvGen;
	76	fHijing->Initialize();
	77	fHijing->SetIHPR2(3, fTrigger);
	78	fHijing->SetIHPR2(4, fQuench);
	79	fHijing->SetIHPR2(6, fShadowing);
	80	fHijing->SetIHPR2(12, fDecaysOff);
	81	fHijing->SetIHPR2(21, fKeep);
	82	//
	83	if (fEvaluate) EvaluateCrossSections();
	84	}
	85
	86	void AliGenHijing::Generate()
	87	{
	88	// Generate one event
	89
	90	Float_t polar[3] = {0,0,0};
	91	Float_t origin[3]= {0,0,0};
	92	Float_t origin0[3]= {0,0,0};
	93	Float_t p[3], random[6];
	94	Float_t tof;
	95
	96	static TClonesArray *particles;
	97	// converts from mm/c to s
	98	const Float_t kconv=0.001/2.999792458e8;
	99	//
	100	Int_t nt=0;
	101	Int_t jev=0;
	102	Int_t j, kf, ks, imo;
	103	kf=0;
	104
	105	if(!particles) particles=new TClonesArray("TParticle",10000);
	106
	107	fTrials=0;
	108	for (j=0;j<3;j++) origin0[j]=fOrigin[j];
	109	if(fVertexSmear==perEvent) {
	110	gMC->Rndm(random,6);
	111	for (j=0;j<3;j++) {
	112	origin0[j]+=fOsigma[j]TMath::Cos(2random[2j]TMath::Pi())*
	113	TMath::Sqrt(-2TMath::Log(random[2j+1]));
	114	// fHijing->SetMSTP(151,0);
	115	}
	116	} else if (fVertexSmear==perTrack) {
	117	// fHijing->SetMSTP(151,0);
	118	for (j=0;j<3;j++) {
	119	// fHijing->SetPARP(151+j, fOsigma[j]*10.);
	120	}
	121	}
	122	while(1)
	123	{
	124
	125	fHijing->GenerateEvent();
	126	fTrials++;
	127	fHijing->ImportParticles(particles,"All");
	128	Int_t np = particles->GetEntriesFast();
	129	printf("\n **************************************************%d\n",np);
	130	Int_t nc=0;
	131	if (np == 0 ) continue;
	132	Int_t i;
	133	Int_t * newPos = new Int_t[np];
	134	for (i = 0; i<np; i++) *(newPos+i)=i;
	135
	136	for (i = 0; i<np; i++) {
	137	TParticle * iparticle = (TParticle *) particles->At(i);
	138
	139	Bool_t hasMother = (iparticle->GetFirstMother() >=0);
	140	Bool_t hasDaughter = (iparticle->GetFirstDaughter() >=0);
	141	Bool_t selected = kTRUE;
	142	Bool_t hasSelectedDaughters = kFALSE;
	143
	144
	145	kf = iparticle->GetPdgCode();
	146	if (!fSelectAll) selected = KinematicSelection(iparticle)&&SelectFlavor(kf);
	147	if (hasDaughter && !selected) hasSelectedDaughters = DaughtersSelection(iparticle, particles);
	148	//
	149	// Put particle on the stack if it is either selected or it is the mother of at least one seleted particle
	150	//
	151
	152	if (selected \|\| hasSelectedDaughters) {
	153	nc++;
	154	ks = iparticle->GetStatusCode();
	155	p[0]=iparticle->Px();
	156	p[1]=iparticle->Py();
	157	p[2]=iparticle->Pz();
	158	origin[0]=origin0[0]+iparticle->Vx()/10;
	159	origin[1]=origin0[1]+iparticle->Vy()/10;
	160	origin[2]=origin0[2]+iparticle->Vz()/10;
	161	tof=kconv*iparticle->T();
	162	imo=-1;
	163	if (hasMother) {
	164	imo=iparticle->GetFirstMother();
	165	imo=*(newPos+imo);
	166	}
	167
	168	// printf("\n selected iparent %d %d %d \n",i, kf, imo);
	169	if (hasDaughter) {
	170	gAlice->SetTrack(0,imo,kf,p,origin,polar,
	171	tof,"Primary",nt);
	172	} else {
	173	gAlice->SetTrack(fTrackIt,imo,kf,p,origin,polar,
	174	tof,"Secondary",nt);
	175	}
	176	*(newPos+i)=nt;
	177	} // selected
	178	} // particle loop
	179	delete newPos;
	180	printf("\n I've put %i particles on the stack \n",nc);
	181	if (nc > 0) {
	182	jev+=nc;
	183	if (jev >= fNpart \|\| fNpart == -1) {
	184	fKineBias=Float_t(fNpart)/Float_t(fTrials);
	185	printf("\n Trials: %i %i %i\n",fTrials, fNpart, jev);
	186	break;
	187	}
	188	}
	189	} // event loop
	190	}
	191
	192	Bool_t AliGenHijing::KinematicSelection(TParticle *particle)
	193	{
	194	// Perform kinematic selection
	195	Float_t px=particle->Px();
	196	Float_t py=particle->Py();
	197	Float_t pz=particle->Pz();
	198	Float_t e=particle->Energy();
	199
	200	//
	201	// transverse momentum cut
	202	Float_t pt=TMath::Sqrt(pxpx+pypy);
	203	if (pt > fPtMax \|\| pt < fPtMin)
	204	{
	205	// printf("\n failed pt cut %f %f %f \n",pt,fPtMin,fPtMax);
	206	return kFALSE;
	207	}
	208	//
	209	// momentum cut
	210	Float_t p=TMath::Sqrt(pxpx+pypy+pz*pz);
	211	if (p > fPMax \|\| p < fPMin)
	212	{
	213	// printf("\n failed p cut %f %f %f \n",p,fPMin,fPMax);
	214	return kFALSE;
	215	}
	216
	217	//
	218	// theta cut
	219	Float_t theta = Float_t(TMath::ATan2(Double_t(pt),Double_t(pz)));
	220	if (theta > fThetaMax \|\| theta < fThetaMin)
	221	{
	222
	223	// printf("\n failed theta cut %f %f %f \n",theta,fThetaMin,fThetaMax);
	224	return kFALSE;
	225	}
	226
	227	//
	228	// rapidity cut
	229	Float_t y = 0.5*TMath::Log((e+pz)/(e-pz));
	230	if (y > fYMax \|\| y < fYMin)
	231	{
	232	// printf("\n failed y cut %f %f %f \n",y,fYMin,fYMax);
	233	return kFALSE;
	234	}
	235
	236	//
	237	// phi cut
	238	Float_t phi=Float_t(TMath::ATan2(Double_t(py),Double_t(px)));
	239	if (phi > fPhiMax \|\| phi < fPhiMin)
	240	{
	241	// printf("\n failed phi cut %f %f %f \n",phi,fPhiMin,fPhiMax);
	242	return kFALSE;
	243	}
	244
	245	return kTRUE;
	246	}
	247
	248	void AliGenHijing::KeepFullEvent()
	249	{
	250	fKeep=1;
	251	}
	252
	253	void AliGenHijing::EvaluateCrossSections()
	254	{
	255	// Glauber Calculation of geometrical x-section
	256	//
	257	Float_t xTot=0.; // barn
	258	Float_t xTotHard=0.; // barn
	259	Float_t xPart=0.; // barn
	260	Float_t xPartHard=0.; // barn
	261	Float_t sigmaHard=0.1; // mbarn
	262	Float_t bMin=0.;
	263	Float_t bMax=fHijing->GetHIPR1(34)+fHijing->GetHIPR1(35);
	264	const Float_t kdib=0.2;
	265	Int_t kMax=Int_t((bMax-bMin)/kdib)+1;
	266
	267
	268	printf("\n Projectile Radius (fm): %f \n",fHijing->GetHIPR1(34));
	269	printf("\n Target Radius (fm): %f \n",fHijing->GetHIPR1(35));
	270	Int_t i;
	271	Float_t oldvalue=0.;
	272
	273	for (i=0; i<kMax; i++)
	274	{
	275	Float_t xb=bMin+i*kdib;
	276	Float_t ov;
	277	ov=fHijing->Profile(xb);
	278	Float_t gb = 2.0.01fHijing->GetHIPR1(40)kdibxb(1.-TMath::Exp(-fHijing->GetHINT1(12)ov));
	279	Float_t gbh = 2.0.01fHijing->GetHIPR1(40)kdibxbsigmaHardov;
	280	xTot+=gb;
	281	xTotHard+=gbh;
	282	if (xb > fMinImpactParam && xb < fMaxImpactParam)
	283	{
	284	xPart+=gb;
	285	xPartHard+=gbh;
	286	}
	287
	288	if ((xTot-oldvalue)/oldvalue<0.0001) break;
	289	oldvalue=xTot;
	290	printf("\n Total cross section (barn): %d %f %f \n",i, xb, xTot);
	291	printf("\n Hard cross section (barn): %d %f %f \n\n",i, xb, xTotHard);
	292	}
	293	printf("\n Total cross section (barn): %f \n",xTot);
	294	printf("\n Hard cross section (barn): %f \n \n",xTotHard);
	295	printf("\n Partial cross section (barn): %f %f \n",xPart, xPart/xTot*100.);
	296	printf("\n Partial hard cross section (barn): %f %f \n",xPartHard, xPartHard/xTotHard*100.);
	297	}
	298
	299	Bool_t AliGenHijing::DaughtersSelection(TParticle* iparticle, TClonesArray* particles)
	300	{
	301	//
	302	// Looks recursively if one of the daughters has been selected
	303	//
	304	// printf("\n Consider daughters %d:",iparticle->GetPdgCode());
	305	Int_t imin=-1;
	306	Int_t imax=-1;
	307	Int_t i;
	308	Bool_t hasDaughters= (iparticle->GetFirstDaughter() >=0);
	309	Bool_t selected=kFALSE;
	310	if (hasDaughters) {
	311	imin=iparticle->GetFirstDaughter();
	312	imax=iparticle->GetLastDaughter();
	313	for (i=imin; i<= imax; i++){
	314	TParticle * jparticle = (TParticle *) particles->At(i);
	315	Int_t ip=jparticle->GetPdgCode();
	316	if (KinematicSelection(jparticle)&&SelectFlavor(ip)) {selected=kTRUE; break;}
	317	if (DaughtersSelection(jparticle, particles)) {selected=kTRUE; break; }
	318	}
	319	} else {
	320	return kFALSE;
	321	}
	322
	323	return selected;
	324	}
	325
	326
	327	Bool_t AliGenHijing::SelectFlavor(Int_t pid)
	328	{
	329	// Select flavor of particle
	330	// 0: all
	331	// 4: charm and beauty
	332	// 5: beauty
	333	if (fFlavor == 0) return kTRUE;
	334
	335	Int_t ifl=TMath::Abs(pid/100);
	336	if (ifl > 10) ifl/=10;
	337	return ((fFlavor==4 && (ifl==4 \|\| ifl==5)) \|\|
	338	(fFlavor==5 && ifl==5));
	339
	340	}
	341
	342	AliGenHijing& AliGenHijing::operator=(const AliGenHijing& rhs)
	343	{
	344	// Assignment operator
	345	return *this;
	346	}