STEER/AliPDG.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
   5  * Contributors are mentioned in the code where appropriate.              *
   6  *                                                                        *
   7  * Permission to use, copy, modify and distribute this software and its   *
   8  * documentation strictly for non-commercial purposes is hereby granted   *
   9  * without fee, provided that the above copyright notice appears in all   *
  10  * copies and that both the copyright notice and this permission notice   *
  11  * appear in the supporting documentation. The authors make no claims     *
  12  * about the suitability of this software for any purpose. It is          *
  13  * provided "as is" without express or implied warranty.                  *
  14  **************************************************************************/
  15
  16 /*
  17 $Log$
  18 Revision 1.2  2001/01/31 14:32:42  morsch
  19 Some B mesons added
  20
  21 Revision 1.1  2000/12/21 16:48:39  morsch
  22 AliPDG class, first commit.
  23
  24 */
  25
  26 // Class to encapsulate the ALICE updates to TDatabasePDG.h
  27 // Can be used by TGeant3 and TGeant4
  28 // It contains also the constants for the PDG particle IDs.
  29 // Should evolve towards dynamical loading from external data base.
  30 // Comments to: andreas.morsch@cern.ch
  31
  32 #include "AliPDG.h"
  33 #include "TDatabasePDG.h"
  34
  35 ClassImp(AliPDG)
  36
  37     void AliPDG::AddParticlesToPdgDataBase()
  38 {
  39
  40 //
  41 // Add particles to the PDG data base
  42
  43     TDatabasePDG *pdgDB = TDatabasePDG::Instance();
  44
  45     const Int_t kion=10000000;
  46     const Int_t kspe=50000000;
  47
  48     const Double_t kAu2Gev=0.9314943228;
  49     const Double_t khSlash = 1.0545726663e-27;
  50     const Double_t kErg2Gev = 1/1.6021773349e-3;
  51     const Double_t khShGev = khSlash*kErg2Gev;
  52     const Double_t kYear2Sec = 3600*24*365.25;
  53 //
  54 // Bottom mesons
  55 // mass and life-time from PDG
  56 //
  57 // Done by default now from Pythia6 table!
  58 //
  59 //
  60 // Ions
  61 //
  62
  63   pdgDB->AddParticle("Deuteron","Deuteron",2*kAu2Gev+8.071e-3,kTRUE,
  64                      0,1,"Ion",kion+10020);
  65   pdgDB->AddParticle("Triton","Triton",3*kAu2Gev+14.931e-3,kFALSE,
  66                      khShGev/(12.33*kYear2Sec),1,"Ion",kion+10030);
  67   pdgDB->AddParticle("Alpha","Alpha",4*kAu2Gev+2.424e-3,kTRUE,
  68                      khShGev/(12.33*kYear2Sec),2,"Ion",kion+20040);
  69   pdgDB->AddParticle("HE3","HE3",3*kAu2Gev+14.931e-3,kFALSE,
  70                      0,2,"Ion",kion+20030);
  71 // Special particles
  72 //
  73   pdgDB->AddParticle("Cherenkov","Cherenkov",0,kFALSE,
  74                      0,0,"Special",kspe+50);
  75   pdgDB->AddParticle("FeedbackPhoton","FeedbackPhoton",0,kFALSE,
  76                      0,0,"Special",kspe+51);
  77
  78 }
  79
  80