tPythia6Generator Class Reference

#include <tPythia6Generator.h>

Inheritance diagram for tPythia6Generator:

Collaboration diagram for tPythia6Generator:

Public Member Functions
	tPythia6Generator ()
virtual	~tPythia6Generator ()
Bool_t	ReadEvent (FairPrimaryGenerator *)
virtual Bool_t	Init ()
void	SetMom (Double_t mom)
void	SetTarget (TString Type, TString Target)
void	UseDeepCopy ()
double	getPyint5_XSEC (int i, int j)
double	getPyint5_NGEN (int i, int j)
int	getPyint5_NGENPD ()

Protected Member Functions
	ClassDef (tPythia6Generator, 1)

Protected Attributes
Double_t	fMom
Bool_t	fDeepCopy
Bool_t	fPionKaonDecay
TString	fType
TString	fTarget

Private Attributes
TPythia6 *	fPythia

Detailed Description

Definition at line 12 of file tPythia6Generator.h.

Constructor & Destructor Documentation

tPythia6Generator()

tPythia6Generator::tPythia6Generator

(

)

default constructor

Definition at line 10 of file tPythia6Generator.cxx.

{
  fMom        = 400;  // muon
  fDeepCopy   = kFALSE;  // copy complete pythia event
  fPythia     = TPythia6::Instance();
  fPionKaonDecay = kFALSE;
  fType       = "gamma/mu-";   // muon proton scattering 
  fTarget     = "p+";
}

~tPythia6Generator()

tPythia6Generator::~tPythia6Generator ( )

virtual

destructor

Definition at line 52 of file tPythia6Generator.cxx.

{
}

Member Function Documentation

ClassDef()

tPythia6Generator::ClassDef ( tPythia6Generator  , 1    )

protected

getPyint5_NGEN()

double tPythia6Generator::getPyint5_NGEN ( int  i, int  j  )

inline

Definition at line 31 of file tPythia6Generator.h.

{return  fPythia->GetPyint5()->NGEN[i][j];};  

getPyint5_NGENPD()

int tPythia6Generator::getPyint5_NGENPD ( )

inline

Definition at line 32 of file tPythia6Generator.h.

{return  fPythia->GetPyint5()->NGENPD;};  

getPyint5_XSEC()

double tPythia6Generator::getPyint5_XSEC ( int  i, int  j  )

inline

Definition at line 30 of file tPythia6Generator.h.

{return  fPythia->GetPyint5()->XSEC[i][j];};  

Init()

Bool_t tPythia6Generator::Init ( )

virtual

Definition at line 22 of file tPythia6Generator.cxx.

{
  
  fPythia->SetMRPY(1,gRandom->GetSeed());
 
  cout<<"Muon Momentum "<<fMom<<endl;
  
  if (fPionKaonDecay) {
// let also pion and kaon decay
   fPythia->SetMDCY(fPythia->Pycomp(211),1,100);
   fPythia->SetMDCY(fPythia->Pycomp(321),1,100);
  }
  fPythia->SetMSEL(1);     // msel 2 includes diffractive parts
// fPythia->SetMSUB(91,0);  // elastic scattering
  fPythia->SetPARP(2,2);   // To get below 10 GeV, you have to change PARP(2)
 
/* compass settings
# CKIN(10) = 100 
# MSEL = 2 # include elastic and diffractive to mbias
# MSTJ = 1  default, string fragmentation
*/
 
  fPythia->Initialize("FIXT",fType,fTarget,fMom);
 
  return kTRUE;
}

ReadEvent()

Bool_t tPythia6Generator::ReadEvent

(

FairPrimaryGenerator *

cpg

)

public method ReadEvent

Definition at line 58 of file tPythia6Generator.cxx.

{
  Int_t npart = 0;
  while(npart == 0)
    {
      fPythia->GenerateEvent();
// remove all unnecessary stuff
      fPythia->Pyedit(2);
      npart = fPythia->GetN();
    };
 
  for(Int_t ii=1; ii<fPythia->GetN()+1; ii++){
    Bool_t wanttracking=false;    
    if(fPythia->GetK(ii,1) == 1){ wanttracking=true;}
    Int_t id    = fPythia->GetK(ii,2);
    Double_t z  = fPythia->GetV(ii,3)/10.; 
    Double_t x  = fPythia->GetV(ii,1)/10.;  
    Double_t y  = fPythia->GetV(ii,2)/10.; 
    Double_t pz = fPythia->GetP(ii,3);  
    Double_t px = fPythia->GetP(ii,1);  
    Double_t py = fPythia->GetP(ii,2);  
    Double_t t  = fPythia->GetP(ii,2); // time of production, in mm/c (¼ 3.33 × 10−12 s). 
    Int_t    im = fPythia->GetV(ii,4);
    // cout << "debug p6 "<<id<<" "<< pz << endl;
// copy blind complete pythia event
    if (fDeepCopy || wanttracking){ cpg->AddTrack(id,px,py,pz,x,y,z,im,wanttracking); } 
  }
  return kTRUE;
}

SetMom()

void tPythia6Generator::SetMom ( Double_t  mom )

inline

Definition at line 27 of file tPythia6Generator.h.

{ fMom = mom; };

SetTarget()

void tPythia6Generator::SetTarget ( TString  Type, TString  Target  )

inline

Definition at line 28 of file tPythia6Generator.h.

{ fType = Type; fTarget=Target;};

UseDeepCopy()

void tPythia6Generator::UseDeepCopy ( )

inline

Definition at line 29 of file tPythia6Generator.h.

{ fDeepCopy   = kTRUE; };

Member Data Documentation

fDeepCopy

Bool_t tPythia6Generator::fDeepCopy

protected

Definition at line 40 of file tPythia6Generator.h.

fMom

Double_t tPythia6Generator::fMom

protected

Definition at line 39 of file tPythia6Generator.h.

fPionKaonDecay

Bool_t tPythia6Generator::fPionKaonDecay

protected

Definition at line 41 of file tPythia6Generator.h.

fPythia

TPythia6* tPythia6Generator::fPythia

private

Definition at line 35 of file tPythia6Generator.h.

fTarget

TString tPythia6Generator::fTarget

protected

Definition at line 43 of file tPythia6Generator.h.

fType

TString tPythia6Generator::fType

protected

Definition at line 42 of file tPythia6Generator.h.

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The documentation for this class was generated from the following files:

• shipgen/tPythia6Generator.h
• shipgen/tPythia6Generator.cxx