[u/mrichter/AliRoot.git] / EVGEN / AliGenPythia.cxx

#include "AliGenerator.h"
#include "AliGenPythia.h"
#include "TGeant3.h"
#include "AliRun.h"
#include "AliPythia.h"
#include <TDirectory.h>
#include <TFile.h>
#include <TTree.h>
#include <stdlib.h>
#include <AliPythia.h>
#include <TMCParticle.h>
#include <GParticle.h>
 ClassImp(AliGenPythia)

AliGenPythia::AliGenPythia()
                 :AliGenerator()
{
}

AliGenPythia::AliGenPythia(Int_t npart)
                 :AliGenerator(npart)
{
// default charm production at 5. 5 TeV
// semimuonic decay
// structure function GRVHO
//
    fXsection  = 0.;
    fParentSelect.Set(5);
    fChildSelect.Set(5);
    for (Int_t i=0; i<5; i++) fParentSelect[i]=fChildSelect[i]=0;
    SetProcess();
    SetStrucFunc();
    ForceDecay();
    SetPtHard();
    SetEnergyCMS();
}

AliGenPythia::~AliGenPythia()
{
}

void AliGenPythia::Init()
{
    SetMC(new AliPythia());
    fPythia=(AliPythia*) fgMCEvGen;
//
    fParentWeight=1./Float_t(fNpart);
//
//  Forward Paramters to the AliPythia object
    fPythia->DefineParticles();
    fPythia->SetCKIN(3,fPtHardMin);
    fPythia->SetCKIN(4,fPtHardMax);    
    fPythia->ProcInit(fProcess,fEnergyCMS,fStrucFunc);
    fPythia->ForceDecay(fForceDecay);
    fPythia->LuList(0);
    fPythia->PyStat(2);
//  Parent and Children Selection
    switch (fProcess) 
    {
    case charm:

	fParentSelect[0]=411;
	fParentSelect[1]=421;
	fParentSelect[2]=431;
	fParentSelect[3]=4122;	
	break;
    case charm_unforced:

	fParentSelect[0]=411;
	fParentSelect[1]=421;
	fParentSelect[2]=431;
	fParentSelect[3]=4122;	
	break;
    case beauty:
	fParentSelect[0]=511;
	fParentSelect[1]=521;
	fParentSelect[2]=531;
	fParentSelect[3]=5122;	
	break;
    case beauty_unforced:
	fParentSelect[0]=511;
	fParentSelect[1]=521;
	fParentSelect[2]=531;
	fParentSelect[3]=5122;	
	break;
    case jpsi_chi:
    case jpsi:
	fParentSelect[0]=443;
	break;
    case mb:
	break;
    }

    switch (fForceDecay) 
    {
    case semielectronic:
    case dielectron:
    case b_jpsi_dielectron:
    case b_psip_dielectron:
	fChildSelect[0]=11;	
	break;
    case semimuonic:
    case dimuon:
    case b_jpsi_dimuon:
    case b_psip_dimuon:
    case pitomu:
    case katomu:
	fChildSelect[0]=13;
	break;
    }
}

void AliGenPythia::Generate()
{
    AliMC* pMC = AliMC::GetMC();

    Float_t polar[3] =   {0,0,0};
    Float_t origin[3]=   {0,0,0};
    Float_t origin_p[3]= {0,0,0};
    Float_t origin0[3]=  {0,0,0};
    Float_t p[3], p_p[4], random[6];
//  converts from mm/c to s
    const Float_t kconv=0.001/2.999792458e8;
    
    
//
    Int_t nt=0;
    Int_t nt_p=0;
    Int_t jev=0;
    Int_t j;
    
    fTrials=0;
    for (j=0;j<3;j++) origin0[j]=fOrigin[j];
    if(fVertexSmear==perEvent) {
	pMC->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]));
	    fPythia->SetMSTP(151,0);
	}
    } else if (fVertexSmear==perTrack) {
	fPythia->SetMSTP(151,0);
	for (j=0;j<3;j++) {
	    fPythia->SetPARP(151+j, fOsigma[j]*10.);
	}
    }
    while(1)
    {
	fPythia->PyEvnt();
	fTrials++;
	TObjArray* particles = fPythia->GetPrimaries() ;
	Int_t np = particles->GetEntriesFast();
	printf("\n **************************************************%d\n",np);
	Int_t nc=0;
	if (np == 0 ) continue;
	if (fProcess != mb) {
	    for (Int_t i = 0; i<np; i++) {
		TMCParticle *  iparticle = (TMCParticle *) particles->At(i);
		Int_t kf = iparticle->GetKF();
		fChildWeight=(fPythia->GetBraPart(kf))*fParentWeight;	  
//
// Parent
		if (ParentSelected(TMath::Abs(kf))) {
		    if (KinematicSelection(iparticle)) {
			if (nc==0) {
//
// Store information concerning the hard scattering process
//
			    Float_t mass_p = fPythia->GetPARI(13);
			    Float_t   pt_p = fPythia->GetPARI(17);
			    Float_t    y_p = fPythia->GetPARI(37);
			    Float_t  xmt_p = sqrt(pt_p*pt_p+mass_p*mass_p);
			    Float_t     ty = Float_t(TMath::TanH(y_p));
			    p_p[0] = pt_p;
			    p_p[1] = 0;
			    p_p[2] = xmt_p*ty/sqrt(1.-ty*ty);
			    p_p[3] = mass_p;
			    gAlice->SetTrack(0,-1,-1,
					     p_p,origin_p,polar,
					     0,"Hard Scat.",nt_p,fParentWeight);
			    gAlice->KeepTrack(nt_p);
			}
			nc++;
//
// store parent track information
			p[0]=iparticle->GetPx();
			p[1]=iparticle->GetPy();
			p[2]=iparticle->GetPz();
			origin[0]=origin0[0]+iparticle->GetVx()/10;
			origin[1]=origin0[1]+iparticle->GetVy()/10;
			origin[2]=origin0[2]+iparticle->GetVz()/10;

			Int_t ifch=iparticle->GetFirstChild();
			Int_t ilch=iparticle->GetLastChild();	
			if (ifch !=0 && ilch !=0) {
			    gAlice->SetTrack(0,nt_p,fPythia->GetGeantCode(kf),
					     p,origin,polar,
					     0,"Primary",nt,fParentWeight);
			    gAlice->KeepTrack(nt);
			    Int_t iparent = nt;
//
// Children	    

			    for (Int_t j=ifch; j<=ilch; j++)
			    {
				TMCParticle *  ichild = 
				    (TMCParticle *) particles->At(j-1);
				Int_t kf = ichild->GetKF();
//
// 
				if (ChildSelected(TMath::Abs(kf))) {
				    Int_t kg=fPythia->GetGeantCode(kf);
				    origin[0]=ichild->GetVx();
				    origin[1]=ichild->GetVy();
				    origin[2]=ichild->GetVz();		
				    p[0]=ichild->GetPx();
				    p[1]=ichild->GetPy();
				    p[2]=ichild->GetPz();
				    Float_t tof=kconv*ichild->GetTime();
				    gAlice->SetTrack(fTrackIt, iparent, kg,
						     p,origin,polar,
						     tof,"Decay",nt,fChildWeight);
				    gAlice->KeepTrack(nt);
				} // select child
			    } // child loop
			}
		    } // kinematic selection
		} // select particle
	    } // particle loop
	} else {
	    for (Int_t i = 0; i<np; i++) {
		TMCParticle *  iparticle = (TMCParticle *) particles->At(i);
		Int_t kf = iparticle->GetKF();
		Int_t ks = iparticle->GetKS();
		Int_t gc = fPythia->GetGeantCode(kf);
		if (ks==1 && gc!=0 && KinematicSelection(iparticle)) {
			nc++;
//
// store track information
			p[0]=iparticle->GetPx();
			p[1]=iparticle->GetPy();
			p[2]=iparticle->GetPz();
			origin[0]=origin0[0]+iparticle->GetVx()/10;
			origin[1]=origin0[1]+iparticle->GetVy()/10;
			origin[2]=origin0[2]+iparticle->GetVz()/10;
			Float_t tof=kconv*iparticle->GetTime();
			gAlice->SetTrack(fTrackIt,-1,gc,p,origin,polar,
					 tof,"Primary",nt);
			gAlice->KeepTrack(nt);
		} // select particle
	    } // particle loop 
	    printf("\n I've put %i particles on the stack \n",nc);
	} // mb ?
	if (nc > 0) {
	    jev+=nc;
	    if (jev >= fNpart) {
		fKineBias=Float_t(fNpart)/Float_t(fTrials);
		printf("\n Trials: %i\n",fTrials);
		break;
	    }
	}
    } // event loop
//  adjust weight due to kinematic selection
    AdjustWeights();
//  get cross-section
    fXsection=fPythia->GetPARI(1);
}

Bool_t AliGenPythia::ParentSelected(Int_t ip)
{
    for (Int_t i=0; i<5; i++)
    {
	if (fParentSelect[i]==ip) return kTRUE;
    }
    return kFALSE;
}

Bool_t AliGenPythia::ChildSelected(Int_t ip)
{
    for (Int_t i=0; i<5; i++)
    {
	if (fChildSelect[i]==ip) return kTRUE;
    }
    return kFALSE;
}

Bool_t AliGenPythia::KinematicSelection(TMCParticle *particle)
{
    Float_t px=particle->GetPx();
    Float_t py=particle->GetPy();
    Float_t pz=particle->GetPz();
    Float_t  e=particle->GetEnergy();

//
//  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)))+TMath::Pi();
    if (phi > fPhiMax || phi < fPhiMin)
    {
//	printf("\n failed phi cut %f %f %f \n",phi,fPhiMin,fPhiMax);
	return kFALSE;
    }

    return kTRUE;
}
void AliGenPythia::AdjustWeights()
{
    TClonesArray *PartArray = gAlice->Particles();
    GParticle *Part;
    Int_t ntrack=gAlice->GetNtrack();
    for (Int_t i=0; i<ntrack; i++) {
	Part= (GParticle*) PartArray->UncheckedAt(i);
	Part->SetWgt(Part->GetWgt()*fKineBias);
    }
}
Commit	Line	Data
fe4da5cc	1	#include "AliGenerator.h"
	2	#include "AliGenPythia.h"
	3	#include "TGeant3.h"
	4	#include "AliRun.h"
	5	#include "AliPythia.h"
	6	#include <TDirectory.h>
	7	#include <TFile.h>
	8	#include <TTree.h>
	9	#include <stdlib.h>
	10	#include <AliPythia.h>
	11	#include <TMCParticle.h>
	12	#include <GParticle.h>
	13	ClassImp(AliGenPythia)
	14
	15	AliGenPythia::AliGenPythia()
	16	:AliGenerator()
	17	{
	18	}
	19
	20	AliGenPythia::AliGenPythia(Int_t npart)
	21	:AliGenerator(npart)
	22	{
	23	// default charm production at 5. 5 TeV
	24	// semimuonic decay
	25	// structure function GRVHO
	26	//
	27	fXsection = 0.;
	28	fParentSelect.Set(5);
	29	fChildSelect.Set(5);
	30	for (Int_t i=0; i<5; i++) fParentSelect[i]=fChildSelect[i]=0;
	31	SetProcess();
	32	SetStrucFunc();
	33	ForceDecay();
	34	SetPtHard();
	35	SetEnergyCMS();
	36	}
	37
	38	AliGenPythia::~AliGenPythia()
	39	{
	40	}
	41
	42	void AliGenPythia::Init()
	43	{
	44	SetMC(new AliPythia());
	45	fPythia=(AliPythia*) fgMCEvGen;
	46	//
	47	fParentWeight=1./Float_t(fNpart);
	48	//
	49	// Forward Paramters to the AliPythia object
	50	fPythia->DefineParticles();
fe4da5cc	51	fPythia->SetCKIN(3,fPtHardMin);
	52	fPythia->SetCKIN(4,fPtHardMax);
	53	fPythia->ProcInit(fProcess,fEnergyCMS,fStrucFunc);
5be1fe76	54	fPythia->ForceDecay(fForceDecay);
fe4da5cc	55	fPythia->LuList(0);
	56	fPythia->PyStat(2);
	57	// Parent and Children Selection
	58	switch (fProcess)
	59	{
	60	case charm:
	61
	62	fParentSelect[0]=411;
	63	fParentSelect[1]=421;
	64	fParentSelect[2]=431;
	65	fParentSelect[3]=4122;
	66	break;
	67	case charm_unforced:
	68
	69	fParentSelect[0]=411;
	70	fParentSelect[1]=421;
	71	fParentSelect[2]=431;
	72	fParentSelect[3]=4122;
	73	break;
	74	case beauty:
	75	fParentSelect[0]=511;
	76	fParentSelect[1]=521;
	77	fParentSelect[2]=531;
	78	fParentSelect[3]=5122;
	79	break;
	80	case beauty_unforced:
	81	fParentSelect[0]=511;
	82	fParentSelect[1]=521;
	83	fParentSelect[2]=531;
	84	fParentSelect[3]=5122;
	85	break;
	86	case jpsi_chi:
	87	case jpsi:
	88	fParentSelect[0]=443;
	89	break;
5be1fe76	90	case mb:
5be1fe76	91	break;
fe4da5cc	92	}
	93
	94	switch (fForceDecay)
	95	{
	96	case semielectronic:
	97	case dielectron:
	98	case b_jpsi_dielectron:
	99	case b_psip_dielectron:
	100	fChildSelect[0]=11;
	101	break;
	102	case semimuonic:
	103	case dimuon:
	104	case b_jpsi_dimuon:
	105	case b_psip_dimuon:
5be1fe76	106	case pitomu:
5be1fe76	107	case katomu:
fe4da5cc	108	fChildSelect[0]=13;
	109	break;
	110	}
	111	}
	112
	113	void AliGenPythia::Generate()
	114	{
	115	AliMC* pMC = AliMC::GetMC();
	116
5be1fe76	117	Float_t polar[3] = {0,0,0};
	118	Float_t origin[3]= {0,0,0};
	119	Float_t origin_p[3]= {0,0,0};
	120	Float_t origin0[3]= {0,0,0};
	121	Float_t p[3], p_p[4], random[6];
	122	// converts from mm/c to s
	123	const Float_t kconv=0.001/2.999792458e8;
fe4da5cc	124
	125
	126	//
fe4da5cc	127	Int_t nt=0;
5be1fe76	128	Int_t nt_p=0;
fe4da5cc	129	Int_t jev=0;
	130	Int_t j;
	131
	132	fTrials=0;
	133	for (j=0;j<3;j++) origin0[j]=fOrigin[j];
	134	if(fVertexSmear==perEvent) {
	135	pMC->Rndm(random,6);
	136	for (j=0;j<3;j++) {
	137	origin0[j]+=fOsigma[j]TMath::Cos(2random[2j]TMath::Pi())*
	138	TMath::Sqrt(-2TMath::Log(random[2j+1]));
	139	fPythia->SetMSTP(151,0);
	140	}
	141	} else if (fVertexSmear==perTrack) {
	142	fPythia->SetMSTP(151,0);
	143	for (j=0;j<3;j++) {
	144	fPythia->SetPARP(151+j, fOsigma[j]*10.);
	145	}
	146	}
fe4da5cc	147	while(1)
	148	{
	149	fPythia->PyEvnt();
	150	fTrials++;
	151	TObjArray* particles = fPythia->GetPrimaries() ;
	152	Int_t np = particles->GetEntriesFast();
	153	printf("\n **************************************************%d\n",np);
	154	Int_t nc=0;
	155	if (np == 0 ) continue;
5be1fe76	156	if (fProcess != mb) {
	157	for (Int_t i = 0; i<np; i++) {
	158	TMCParticle * iparticle = (TMCParticle *) particles->At(i);
	159	Int_t kf = iparticle->GetKF();
	160	fChildWeight=(fPythia->GetBraPart(kf))*fParentWeight;
fe4da5cc	161	//
fe4da5cc	162	// Parent
5be1fe76	163	if (ParentSelected(TMath::Abs(kf))) {
	164	if (KinematicSelection(iparticle)) {
	165	if (nc==0) {
	166	//
	167	// Store information concerning the hard scattering process
	168	//
	169	Float_t mass_p = fPythia->GetPARI(13);
	170	Float_t pt_p = fPythia->GetPARI(17);
	171	Float_t y_p = fPythia->GetPARI(37);
	172	Float_t xmt_p = sqrt(pt_ppt_p+mass_pmass_p);
	173	Float_t ty = Float_t(TMath::TanH(y_p));
	174	p_p[0] = pt_p;
	175	p_p[1] = 0;
	176	p_p[2] = xmt_pty/sqrt(1.-tyty);
	177	p_p[3] = mass_p;
	178	gAlice->SetTrack(0,-1,-1,
	179	p_p,origin_p,polar,
	180	0,"Hard Scat.",nt_p,fParentWeight);
	181	gAlice->KeepTrack(nt_p);
	182	}
	183	nc++;
fe4da5cc	184	//
fe4da5cc	185	// store parent track information
5be1fe76	186	p[0]=iparticle->GetPx();
	187	p[1]=iparticle->GetPy();
	188	p[2]=iparticle->GetPz();
	189	origin[0]=origin0[0]+iparticle->GetVx()/10;
	190	origin[1]=origin0[1]+iparticle->GetVy()/10;
	191	origin[2]=origin0[2]+iparticle->GetVz()/10;
fe4da5cc	192
5be1fe76	193	Int_t ifch=iparticle->GetFirstChild();
	194	Int_t ilch=iparticle->GetLastChild();
	195	if (ifch !=0 && ilch !=0) {
	196	gAlice->SetTrack(0,nt_p,fPythia->GetGeantCode(kf),
	197	p,origin,polar,
	198	0,"Primary",nt,fParentWeight);
	199	gAlice->KeepTrack(nt);
	200	Int_t iparent = nt;
fe4da5cc	201	//
	202	// Children
	203
5be1fe76	204	for (Int_t j=ifch; j<=ilch; j++)
	205	{
	206	TMCParticle * ichild =
	207	(TMCParticle *) particles->At(j-1);
	208	Int_t kf = ichild->GetKF();
fe4da5cc	209	//
fe4da5cc	210	//
5be1fe76	211	if (ChildSelected(TMath::Abs(kf))) {
	212	Int_t kg=fPythia->GetGeantCode(kf);
	213	origin[0]=ichild->GetVx();
	214	origin[1]=ichild->GetVy();
	215	origin[2]=ichild->GetVz();
	216	p[0]=ichild->GetPx();
	217	p[1]=ichild->GetPy();
	218	p[2]=ichild->GetPz();
	219	Float_t tof=kconv*ichild->GetTime();
	220	gAlice->SetTrack(fTrackIt, iparent, kg,
	221	p,origin,polar,
	222	tof,"Decay",nt,fChildWeight);
	223	gAlice->KeepTrack(nt);
	224	} // select child
	225	} // child loop
	226	}
	227	} // kinematic selection
	228	} // select particle
	229	} // particle loop
	230	} else {
	231	for (Int_t i = 0; i<np; i++) {
	232	TMCParticle * iparticle = (TMCParticle *) particles->At(i);
	233	Int_t kf = iparticle->GetKF();
	234	Int_t ks = iparticle->GetKS();
	235	Int_t gc = fPythia->GetGeantCode(kf);
	236	if (ks==1 && gc!=0 && KinematicSelection(iparticle)) {
	237	nc++;
	238	//
	239	// store track information
	240	p[0]=iparticle->GetPx();
	241	p[1]=iparticle->GetPy();
	242	p[2]=iparticle->GetPz();
	243	origin[0]=origin0[0]+iparticle->GetVx()/10;
	244	origin[1]=origin0[1]+iparticle->GetVy()/10;
	245	origin[2]=origin0[2]+iparticle->GetVz()/10;
	246	Float_t tof=kconv*iparticle->GetTime();
	247	gAlice->SetTrack(fTrackIt,-1,gc,p,origin,polar,
	248	tof,"Primary",nt);
	249	gAlice->KeepTrack(nt);
	250	} // select particle
	251	} // particle loop
	252	printf("\n I've put %i particles on the stack \n",nc);
	253	} // mb ?
fe4da5cc	254	if (nc > 0) {
5be1fe76	255	jev+=nc;
fe4da5cc	256	if (jev >= fNpart) {
	257	fKineBias=Float_t(fNpart)/Float_t(fTrials);
	258	printf("\n Trials: %i\n",fTrials);
	259	break;
	260	}
	261	}
	262	} // event loop
	263	// adjust weight due to kinematic selection
	264	AdjustWeights();
	265	// get cross-section
	266	fXsection=fPythia->GetPARI(1);
	267	}
	268
	269	Bool_t AliGenPythia::ParentSelected(Int_t ip)
	270	{
	271	for (Int_t i=0; i<5; i++)
	272	{
	273	if (fParentSelect[i]==ip) return kTRUE;
	274	}
	275	return kFALSE;
	276	}
	277
	278	Bool_t AliGenPythia::ChildSelected(Int_t ip)
	279	{
	280	for (Int_t i=0; i<5; i++)
	281	{
	282	if (fChildSelect[i]==ip) return kTRUE;
	283	}
	284	return kFALSE;
	285	}
	286
	287	Bool_t AliGenPythia::KinematicSelection(TMCParticle *particle)
	288	{
	289	Float_t px=particle->GetPx();
	290	Float_t py=particle->GetPy();
	291	Float_t pz=particle->GetPz();
	292	Float_t e=particle->GetEnergy();
	293
	294	//
	295	// transverse momentum cut
	296	Float_t pt=TMath::Sqrt(pxpx+pypy);
	297	if (pt > fPtMax \|\| pt < fPtMin)
	298	{
	299	// printf("\n failed pt cut %f %f %f \n",pt,fPtMin,fPtMax);
	300	return kFALSE;
	301	}
	302	//
	303	// momentum cut
	304	Float_t p=TMath::Sqrt(pxpx+pypy+pz*pz);
	305	if (p > fPMax \|\| p < fPMin)
	306	{
	307	// printf("\n failed p cut %f %f %f \n",p,fPMin,fPMax);
	308	return kFALSE;
	309	}
	310
	311	//
	312	// theta cut
5be1fe76	313	Float_t theta = Float_t(TMath::ATan2(Double_t(pt),Double_t(pz)));
fe4da5cc	314	if (theta > fThetaMax \|\| theta < fThetaMin)
	315	{
	316	// printf("\n failed theta cut %f %f %f \n",theta,fThetaMin,fThetaMax);
	317	return kFALSE;
	318	}
	319
	320	//
	321	// rapidity cut
	322	Float_t y = 0.5*TMath::Log((e+pz)/(e-pz));
	323	if (y > fYMax \|\| y < fYMin)
	324	{
	325	// printf("\n failed y cut %f %f %f \n",y,fYMin,fYMax);
	326	return kFALSE;
	327	}
	328
	329	//
	330	// phi cut
	331	Float_t phi=Float_t(TMath::ATan2(Double_t(py),Double_t(px)))+TMath::Pi();
	332	if (phi > fPhiMax \|\| phi < fPhiMin)
	333	{
	334	// printf("\n failed phi cut %f %f %f \n",phi,fPhiMin,fPhiMax);
	335	return kFALSE;
	336	}
	337
	338	return kTRUE;
	339	}
	340	void AliGenPythia::AdjustWeights()
	341	{
	342	TClonesArray *PartArray = gAlice->Particles();
	343	GParticle *Part;
	344	Int_t ntrack=gAlice->GetNtrack();
	345	for (Int_t i=0; i<ntrack; i++) {
	346	Part= (GParticle*) PartArray->UncheckedAt(i);
	347	Part->SetWgt(Part->GetWgt()*fKineBias);
	348	}
	349	}
	350
	351
	352
	353
	354
5be1fe76	355
	356
	357
	358