PYTHIA8/AliTPythia8.h

   1 #ifndef ALITPYTHIA8_H
   2 #define ALITPYTHIA8_H
   3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   4  * See cxx source for full Copyright notice                               */
   5
   6 /* $Id$ */
   7
   8
   9 ////////////////////////////////////////////////////////////////////////////////
  10 //                                                                            //
  11 // TPythia8                                                                   //
  12 //                                                                            //
  13 // TPythia is an interface class to C++ version of Pythia 8.1                 //
  14 // event generators, written by T.Sjostrand.                                  //
  15 ////////////////////////////////////////////////////////////////////////////////
  16 /*
  17 *------------------------------------------------------------------------------------*
  18  |                                                                                    |
  19  |  *------------------------------------------------------------------------------*  |
  20  |  |                                                                              |  |
  21  |  |                                                                              |  |
  22  |  |   PPP   Y   Y  TTTTT  H   H  III    A      Welcome to the Lund Monte Carlo!  |  |
  23  |  |   P  P   Y Y     T    H   H   I    A A     This is PYTHIA version 8.100      |  |
  24  |  |   PPP     Y      T    HHHHH   I   AAAAA    Last date of change: 20 Oct 2007  |  |
  25  |  |   P       Y      T    H   H   I   A   A                                      |  |
  26  |  |   P       Y      T    H   H  III  A   A    Now is 27 Oct 2007 at 18:26:53    |  |
  27  |  |                                                                              |  |
  28  |  |   Main author: Torbjorn Sjostrand; CERN/PH, CH-1211 Geneva, Switzerland,     |  |
  29  |  |     and Department of Theoretical Physics, Lund University, Lund, Sweden;    |  |
  30  |  |     phone: + 41 - 22 - 767 82 27; e-mail: torbjorn@thep.lu.se                |  |
  31  |  |   Author: Stephen Mrenna; Computing Division, Simulations Group,             |  |
  32  |  |     Fermi National Accelerator Laboratory, MS 234, Batavia, IL 60510, USA;   |  |
  33  |  |     phone: + 1 - 630 - 840 - 2556; e-mail: mrenna@fnal.gov                   |  |
  34  |  |   Author: Peter Skands; CERN/PH, CH-1211 Geneva, Switzerland,                |  |
  35  |  |     and Theoretical Physics Department,                                      |  |
  36  |  |     Fermi National Accelerator Laboratory, MS 106, Batavia, IL 60510, USA;   |  |
  37  |  |     phone: + 41 - 22 - 767 24 59; e-mail: skands@fnal.gov                    |  |
  38  |  |                                                                              |  |
  39  |  |   The main program reference is the 'Brief Introduction to PYTHIA 8.1',      |  |
  40  |  |   T. Sjostrand, S. Mrenna and P. Skands, arXiv:0710.3820                     |  |
  41  |  |                                                                              |  |
  42  |  |   The main physics reference is the 'PYTHIA 6.4 Physics and Manual',         |  |
  43  |  |   T. Sjostrand, S. Mrenna and P. Skands, JHEP05 (2006) 026 [hep-ph/0603175]. |  |
  44  |  |                                                                              |  |
  45  |  |   An archive of program versions and documentation is found on the web:      |  |
  46  |  |   http://www.thep.lu.se/~torbjorn/Pythia.html                                |  |
  47  |  |                                                                              |  |
  48  |  |   This program is released under the GNU General Public Licence version 2.   |  |
  49  |  |   Please respect the MCnet Guidelines for Event Generator Authors and Users. |  |
  50  |  |                                                                              |  |
  51  |  |   Disclaimer: this program comes without any guarantees.                     |  |
  52  |  |   Beware of errors and use common sense when interpreting results.           |  |
  53  |  |                                                                              |  |
  54  |  |   Copyright (C) 2007 Torbjorn Sjostrand                                      |  |
  55  |  |                                                                              |  |
  56  |  |                                                                              |  |
  57  |  *------------------------------------------------------------------------------*  |
  58  |                                                                                    |
  59  *------------------------------------------------------------------------------------*
  60 */
  61
  62 #include "TGenerator.h"
  63 #include "Pythia.h"
  64
  65
  66 class TClonesArray;
  67 class TObjArray;
  68
  69 class AliTPythia8 : public TGenerator
  70 {
  71 public:
  72    AliTPythia8();
  73    AliTPythia8(const char *xmlDir);
  74    virtual ~AliTPythia8();
  75    static AliTPythia8     *Instance();
  76    Pythia8::Pythia        *Pythia8() {return fPythia;}
  77
  78    // Interface
  79    virtual void            GenerateEvent();
  80    virtual Int_t           ImportParticles(TClonesArray *particles, Option_t *option="");
  81    virtual TObjArray      *ImportParticles(Option_t *option="");
  82
  83    // Others
  84    void                    ReadString(const char* string) const;
  85    void                    ReadConfigFile(const char* string) const;
  86    Bool_t                  Initialize(Int_t idAin, Int_t idBin, Double_t ecms);
  87    void                    PrintStatistics() const;
  88    void                    EventListing() const;
  89    Int_t                   GetN() const;
  90
  91 protected:
  92    AliTPythia8(const AliTPythia8&);
  93    AliTPythia8 operator=(const AliTPythia8&);
  94    static  AliTPythia8     *fgInstance;             //! singleton instance
  95    Pythia8::Pythia         *fPythia;                //! The pythia8 instance
  96    Int_t                    fNumberOfParticles;     //! Number of particles
  97 private:
  98    void                    AddParticlesToPdgDataBase() const;
  99    ClassDef(AliTPythia8, 1)   // Interface class of Pythia8
 100 };
 101
 102 #endif
 103