https://github.com/root-project/root
Tip revision: 3e0f60454f9d2d1a444bbd3737ff66a160942db6 authored by Fons Rademakers on 22 September 2011, 08:54:09 UTC
tag patch release v5-30-02.
tag patch release v5-30-02.
Tip revision: 3e0f604
TGenPhaseSpace.h
// @(#)root/physics:$Id$
// Author: Rene Brun , Valerio Filippini 06/09/2000
///////////////////////////////////////////////////////////////////////////////
// //
// Phase Space Generator, based on the GENBOD routine of CERNLIB //
// //
///////////////////////////////////////////////////////////////////////////////
#ifndef ROOT_TGenPhaseSpace
#define ROOT_TGenPhaseSpace
#include "TLorentzVector.h"
class TGenPhaseSpace : public TObject {
private:
Int_t fNt; // number of decay particles
Double_t fMass[18]; // masses of particles
Double_t fBeta[3]; // betas of decaying particle
Double_t fTeCmTm; // total energy in the C.M. minus the total mass
Double_t fWtMax; // maximum weigth
TLorentzVector fDecPro[18]; //kinematics of the generated particles
Double_t PDK(Double_t a, Double_t b, Double_t c);
public:
TGenPhaseSpace() {}
TGenPhaseSpace(const TGenPhaseSpace &gen);
virtual ~TGenPhaseSpace() {}
Bool_t SetDecay(TLorentzVector &P, Int_t nt, const Double_t *mass, Option_t *opt="");
Double_t Generate();
TLorentzVector *GetDecay(Int_t n);
Int_t GetNt() const { return fNt;}
Double_t GetWtMax() const { return fWtMax;}
ClassDef(TGenPhaseSpace,1) //Simple Phase Space Generator
};
#endif