EVGEN/AliGenEMlib.h

   1 #ifndef ALIGENEMLIB_H
   2 #define ALIGENEMLIB_H
   3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   4  * See cxx source for full Copyright notice                               */
   5
   6 /* $Id: AliGenEMlib.h 30052 2008-11-25 14:54:18Z morsch $ */
   7
   8 /////////////////////////////////////////////////////////////////////////////
   9 //                                                                         //
  10 // Implementation of AliGenEMlib for electron, di-electron, and photon     //
  11 // cocktail calculations.                                                  //
  12 // It is based on AliGenGSIlib.                                            //
  13 //                                                                         //
  14 // Responsible: R.Averbeck@gsi.de                                          //
  15 //                                                                         //
  16 /////////////////////////////////////////////////////////////////////////////
  17
  18 #include "AliGenLib.h"
  19 class TRandom;
  20
  21 class AliGenEMlib :public AliGenLib {
  22  public:
  23     GenFunc   GetPt(Int_t param, const char * tname=0) const;
  24     GenFunc   GetY(Int_t param, const char * tname=0) const;
  25     GenFuncIp GetIp(Int_t param, const char * tname=0) const;
  26
  27     enum constants{kPizero, kEta, kRho, kOmega, kEtaprime, kPhi};
  28
  29  private:
  30
  31 // Pizero
  32     static Int_t    IpPizero(TRandom *ran);
  33     static Double_t PtPizero( const Double_t *px, const Double_t *dummy );
  34     static Double_t YPizero(const Double_t *py, const Double_t *dummy);
  35     static Double_t MtScal(Double_t pt, Int_t np);
  36
  37 // Eta
  38     static Int_t    IpEta(TRandom *ran);
  39     static Double_t PtEta( const Double_t *px, const Double_t *dummy );
  40     static Double_t YEta(const Double_t *py, const Double_t *dummy);
  41
  42 // Rho
  43     static Int_t    IpRho(TRandom *ran);
  44     static Double_t PtRho( const Double_t *px, const Double_t *dummy );
  45     static Double_t YRho(const Double_t *py, const Double_t *dummy);
  46
  47 // Omega
  48     static Int_t    IpOmega(TRandom *ran);
  49     static Double_t PtOmega( const Double_t *px, const Double_t *dummy );
  50     static Double_t YOmega(const Double_t *py, const Double_t *dummy);
  51
  52 // Etaprime
  53     static Int_t    IpEtaprime(TRandom *ran);
  54     static Double_t PtEtaprime( const Double_t *px, const Double_t *dummy );
  55     static Double_t YEtaprime(const Double_t *py, const Double_t *dummy);
  56
  57 // Phi
  58     static Int_t    IpPhi(TRandom *ran);
  59     static Double_t PtPhi( const Double_t *px, const Double_t *dummy );
  60     static Double_t YPhi(const Double_t *py, const Double_t *dummy);
  61
  62 // General
  63     static Double_t PtFlat(const Double_t *px, const Double_t *dummy);
  64     static Double_t YFlat(Double_t y);
  65
  66
  67   ClassDef(AliGenEMlib,0)
  68 };
  69
  70 #endif