X-Git-Url: http://git.uio.no/git/?p=u%2Fmrichter%2FAliRoot.git;a=blobdiff_plain;f=EVGEN%2FAliGenParam.cxx;h=134693c839655e0a768d470af0ce4944aace63c8;hp=47d642ad64706b124846444caa6ce26a2f453bd7;hb=4c03906077acc435bf9790b980186e0015ea0b89;hpb=1439f98e64c177f2d0122bfcc85e4162b29f1f2f diff --git a/EVGEN/AliGenParam.cxx b/EVGEN/AliGenParam.cxx index 47d642ad647..134693c8396 100644 --- a/EVGEN/AliGenParam.cxx +++ b/EVGEN/AliGenParam.cxx @@ -1,13 +1,31 @@ +/************************************************************************** + * 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. * + **************************************************************************/ + +/* +$Log$ +*/ + #include "AliGenParam.h" #include "AliGenMUONlib.h" #include "AliRun.h" -#include "TGeant3.h" #include "AliPythia.h" #include #include #include #include -#include +#include ClassImp(AliGenParam) @@ -28,6 +46,7 @@ AliGenParam::AliGenParam() fYPara = 0; fParam = jpsi_p; fAnalog = analog; + SetCutOnChild(); } //____________________________________________________________ @@ -50,6 +69,7 @@ AliGenParam::AliGenParam(Int_t npart, Param_t param) fChildSelect.Set(5); for (Int_t i=0; i<5; i++) fChildSelect[i]=0; ForceDecay(); + SetCutOnChild(); } //____________________________________________________________ @@ -89,7 +109,7 @@ void AliGenParam::Init() Float_t IntPt0 = PtPara->Integral(0,15); Float_t IntPtS = PtPara->Integral(fPtMin,fPtMax); Float_t PhiWgt=(fPhiMax-fPhiMin)/2./TMath::Pi(); - if (fAnalog) { + if (fAnalog == analog) { fYWgt = IntYS/fdNdy0; fPtWgt = IntPtS/IntPt0; fParentWeight = fYWgt*fPtWgt*PhiWgt/fNpart; @@ -135,37 +155,41 @@ void AliGenParam::Generate() // the desired theta, phi and momentum windows; Gaussian smearing // on the vertex is done if selected - AliMC* pMC = AliMC::GetMC(); + + //printf("Generate !!!!!!!!!!!!!\n"); Float_t polar[3]= {0,0,0}; // Float_t origin[3], origin0[3]; Float_t pt, pl, ptot; Float_t phi, theta; - Float_t p[3]; + Float_t p[3], pc[3], och[3], pch[10][3]; Float_t ty, xmt; - Int_t i, nt, j; + Int_t nt, i, j, kfch[10]; Float_t wgtp, wgtch; Double_t dummy; + static TClonesArray *particles; // + if(!particles) particles=new TClonesArray("TParticle",1000); // Float_t random[6]; for (j=0;j<3;j++) origin0[j]=fOrigin[j]; if(fVertexSmear==perEvent) { - pMC->Rndm(random,6); + 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])); } } - for(i=0;iGetBraPart(Ipart))*fParentWeight; Float_t am=fPythia->GetPMAS(fPythia->LuComp(Ipart),1); - pMC->Rndm(random,2); + gMC->Rndm(random,2); // // phi phi=fPhiMin+random[0]*(fPhiMax-fPhiMin); @@ -174,7 +198,7 @@ void AliGenParam::Generate() ty=Float_t(TMath::TanH(fYPara->GetRandom())); // // pT - if (fAnalog) { + if (fAnalog == analog) { pt=fPtPara->GetRandom(); wgtp=fParentWeight; wgtch=fChildWeight; @@ -194,53 +218,91 @@ void AliGenParam::Generate() p[1]=pt*TMath::Sin(phi); p[2]=pl; if(fVertexSmear==perTrack) { - pMC->Rndm(random,6); + gMC->Rndm(random,6); for (j=0;j<3;j++) { origin0[j]= fOrigin[j]+fOsigma[j]*TMath::Cos(2*random[2*j]*TMath::Pi())* TMath::Sqrt(-2*TMath::Log(random[2*j+1])); } } - - Int_t kg=fPythia->GetGeantCode(Ipart); -// -// parent - - gAlice-> - SetTrack(0,-1,kg,p,origin,polar,0,"Primary",nt,wgtp); - Int_t iparent=nt; // // use lujet to decay particle Float_t energy=TMath::Sqrt(ptot*ptot+am*am); fPythia->DecayParticle(Ipart,energy,theta,phi); -// fPythia->LuList(1); - + // fPythia->LuList(1); + + + //printf("origin0 %f %f %f\n",origin0[0],origin0[1],origin0[2]); + //printf("fCutOnChild %d \n",fCutOnChild); // // select muons - TObjArray* particles = fPythia->GetPrimaries() ; - Int_t np = particles->GetEntriesFast(); - for (Int_t i = 0; iAt(i); - Int_t kf = iparticle->GetKF(); + Int_t np=fPythia->ImportParticles(particles,"All"); + //printf("np %d \n",np); + Int_t ncsel=0; + for (i = 1; iAt(i); + Int_t kf = iparticle->GetPdgCode(); + //printf("kf %d\n",kf); // // children if (ChildSelected(TMath::Abs(kf))) { - 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; - gAlice->SetTrack(fTrackIt,iparent,fPythia->GetGeantCode(kf), - p,origin,polar, - 0,"Decay",nt,wgtch); - gAlice->KeepTrack(nt); + pc[0]=iparticle->Px(); + pc[1]=iparticle->Py(); + pc[2]=iparticle->Pz(); + och[0]=origin0[0]+iparticle->Vx()/10; + och[1]=origin0[1]+iparticle->Vy()/10; + och[2]=origin0[2]+iparticle->Vz()/10; + if (fCutOnChild) { + Float_t PtChild=TMath::Sqrt(pc[0]*pc[0]+pc[1]*pc[1]); + Float_t PChild=TMath::Sqrt(PtChild*PtChild+pc[2]*pc[2]); + Float_t ThetaChild=TMath::ATan2(PtChild,pc[2]); + Float_t PhiChild=TMath::ATan2(pc[1],pc[0])+TMath::Pi(); + Bool_t childok = + ((PtChild > fPtMin && PtChild fPMin && PChild fThetaMin && ThetaChild fPhiMin && PhiChild 0) || !fCutOnChild){ + ipa++; +// +// parent + gAlice-> + SetTrack(0,-1,Ipart,p,origin,polar,0,"Primary",nt,wgtp); + iparent=nt; + + for (i=0; i< ncsel; i++) { + gAlice->SetTrack(fTrackIt,iparent,kfch[i], + &pch[i][0],och,polar, + 0,"Decay",nt,wgtch); + gAlice->KeepTrack(nt); + } + + } // kinematic selection break; - } // kinematic selection + } // while } // event loop } @@ -253,11 +315,11 @@ Bool_t AliGenParam::ChildSelected(Int_t ip) return kFALSE; } -Bool_t AliGenParam::KinematicSelection(TMCParticle *particle) +Bool_t AliGenParam::KinematicSelection(TParticle *particle) { - Float_t px=particle->GetPx(); - Float_t py=particle->GetPy(); - Float_t pz=particle->GetPz(); + Float_t px=particle->Px(); + Float_t py=particle->Py(); + Float_t pz=particle->Pz(); // // momentum cut Float_t p=TMath::Sqrt(px*px+py*py+pz*pz);