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0001 // 0002 // ******************************************************************** 0003 // * License and Disclaimer * 0004 // * * 0005 // * The Geant4 software is copyright of the Copyright Holders of * 0006 // * the Geant4 Collaboration. It is provided under the terms and * 0007 // * conditions of the Geant4 Software License, included in the file * 0008 // * LICENSE and available at http://cern.ch/geant4/license . These * 0009 // * include a list of copyright holders. * 0010 // * * 0011 // * Neither the authors of this software system, nor their employing * 0012 // * institutes,nor the agencies providing financial support for this * 0013 // * work make any representation or warranty, express or implied, * 0014 // * regarding this software system or assume any liability for its * 0015 // * use. Please see the license in the file LICENSE and URL above * 0016 // * for the full disclaimer and the limitation of liability. * 0017 // * * 0018 // * This code implementation is the result of the scientific and * 0019 // * technical work of the GEANT4 collaboration. * 0020 // * By using, copying, modifying or distributing the software (or * 0021 // * any work based on the software) you agree to acknowledge its * 0022 // * use in resulting scientific publications, and indicate your * 0023 // * acceptance of all terms of the Geant4 Software license. * 0024 // ******************************************************************** 0025 // 0026 // $Id: Pythia6.hh,v 1.1 2014/10/05 03:12:12 mccumber Exp $ 0027 // 0028 /// \file eventgenerator/pythia/decayer6/include/Pythia6.hh 0029 /// \brief Definition of the Pythia6 class 0030 0031 // 0032 // ---------------------------------------------------------------------------- 0033 0034 // ****************************************************************************** 0035 // ****************************************************************************** 0036 // ** ** 0037 // ** ** 0038 // ** *......* Welcome to the Lund Monte Carlo! ** 0039 // ** *:::!!:::::::::::* ** 0040 // ** *::::::!!::::::::::::::* PPP Y Y TTTTT H H III A ** 0041 // ** *::::::::!!::::::::::::::::* P P Y Y T H H I A A ** 0042 // ** *:::::::::!!:::::::::::::::::* PPP Y T HHHHH I AAAAA ** 0043 // ** *:::::::::!!:::::::::::::::::* P Y T H H I A A ** 0044 // ** *::::::::!!::::::::::::::::*! P Y T H H III A A ** 0045 // ** *::::::!!::::::::::::::* !! ** 0046 // ** !! *:::!!:::::::::::* !! This is PYTHIA version 6.418 ** 0047 // ** !! !* -><- * !! Last date of change: 9 Jun 2008 ** 0048 // ** !! !! !! ** 0049 // ** !! !! !! Now is 0 Jan 2000 at 0:00:00 ** 0050 // ** !! !! ** 0051 // ** !! lh !! Disclaimer: this program comes ** 0052 // ** !! !! without any guarantees. Beware ** 0053 // ** !! hh !! of errors and use common sense ** 0054 // ** !! ll !! when interpreting results. ** 0055 // ** !! !! ** 0056 // ** !! Copyright T. Sjostrand (2008) ** 0057 // ** ** 0058 // ** An archive of program versions and documentation is found on the web: ** 0059 // ** http://www.thep.lu.se/~torbjorn/Pythia.html ** 0060 // ** ** 0061 // ** When you cite this program, the official reference is to the 6.4 manual: ** 0062 // ** T. Sjostrand, S. Mrenna and P. Skands, JHEP05 (2006) 026 ** 0063 // ** (LU TP 06-13, FERMILAB-PUB-06-052-CD-T) [hep-ph/0603175]. ** 0064 // ** ** 0065 // ** Also remember that the program, to a large extent, represents original ** 0066 // ** physics research. Other publications of special relevance to your ** 0067 // ** studies may therefore deserve separate mention. ** 0068 // ** ** 0069 // ** Main author: Torbjorn Sjostrand; Department of Theoretical Physics, ** 0070 // ** Lund University, Solvegatan 14A, S-223 62 Lund, Sweden; ** 0071 // ** phone: + 46 - 46 - 222 48 16; e-mail: torbjorn@thep.lu.se ** 0072 // ** Author: Stephen Mrenna; Computing Division, GDS Group, ** 0073 // ** Fermi National Accelerator Laboratory, MS 234, Batavia, IL 60510, USA; ** 0074 // ** phone: + 1 - 630 - 840 - 2556; e-mail: mrenna@fnal.gov ** 0075 // ** Author: Peter Skands; Theoretical Physics Department, ** 0076 // ** Fermi National Accelerator Laboratory, MS 106, Batavia, IL 60510, USA; ** 0077 // ** and CERN/PH, CH-1211 Geneva, Switzerland; ** 0078 // ** phone: + 41 - 22 - 767 24 59; e-mail: skands@fnal.gov ** 0079 // ** ** 0080 // ** ** 0081 // ****************************************************************************** 0082 0083 #ifndef PYTHIA_Pythia6 0084 #define PYTHIA_Pythia6 0085 0086 #include <vector> 0087 0088 int const KNDCAY = 8000; //should be 4000 for pythia61 0089 0090 /// PYJETS common-block 0091 struct Pyjets_t 0092 { 0093 int N; 0094 int NPAD; 0095 int K[5][4000]; 0096 double P[5][4000]; 0097 double V[5][4000]; 0098 }; 0099 0100 /// PYDAT1 common-block 0101 struct Pydat1_t 0102 { 0103 int MSTU[200]; 0104 double PARU[200]; 0105 int MSTJ[200]; 0106 double PARJ[200]; 0107 }; 0108 0109 /// PYDAT3 common-block 0110 struct Pydat3_t 0111 { 0112 int MDCY[3][500]; 0113 int MDME[2][KNDCAY]; 0114 double BRAT[KNDCAY]; 0115 int KFDP[5][KNDCAY]; 0116 }; 0117 0118 /// Structure for Pythia6 particle properties 0119 struct Pythia6Particle 0120 { 0121 Pythia6Particle( 0122 int ks, int kf, int parent, int firstChild, int lastChild, 0123 float px, float py, float pz, float energy, float mass, 0124 float vx, float vy, float vz, float time, float lifetime) 0125 : fKS(ks), fKF(kf), 0126 fParent(parent), fFirstChild(firstChild), fLastChild(lastChild), 0127 fPx(px), fPy(py), fPz(pz), fEnergy(energy), fMass(mass), 0128 fVx(vx), fVy(vy), fVz(vz), fTime(time), fLifetime(lifetime) {} 0129 0130 int fKS; // status of particle ( LUJETS K[1] ) 0131 int fKF; // KF flavour code ( LUJETS K[2] ) 0132 int fParent; // parrent's id ( LUJETS K[3] ) 0133 int fFirstChild; // id of first child ( LUJETS K[4] ) 0134 int fLastChild; // id of last child ( LUJETS K[5] ) 0135 0136 float fPx; // X momenta [GeV/c] ( LUJETS P[1] ) 0137 float fPy; // Y momenta [GeV/c] ( LUJETS P[2] ) 0138 float fPz; // Z momenta [GeV/c] ( LUJETS P[3] ) 0139 float fEnergy; // Energy [GeV] ( LUJETS P[4] ) 0140 float fMass; // Mass [Gev/c^2] ( LUJETS P[5] ) 0141 0142 float fVx; // X vertex [mm] ( LUJETS V[1] ) 0143 float fVy; // Y vertex [mm] ( LUJETS V[2] ) 0144 float fVz; // Z vertex [mm] ( LUJETS V[3] ) 0145 float fTime; // time of procuction [mm/c]( LUJETS V[4] ) 0146 float fLifetime; // proper lifetime [mm/c] ( LUJETS V[5] ) 0147 }; 0148 0149 typedef std::vector<Pythia6Particle*> ParticleVector; 0150 0151 /// The C++ interface class to Pythia6 0152 /// 0153 /// According to TPythia6 class from Root: 0154 /// (The TPythia6 class is an interface class to F77 routines in Pythia6 // 0155 /// CERNLIB event generators, written by T.Sjostrand.) 0156 /// http://root.cern.ch/ 0157 /// see http://root.cern.ch/root/License.html 0158 /// 0159 /// The complete Pythia6 documentation can be found at: 0160 /// http://home.thep.lu.se/~torbjorn/pythiaaux/recent.html 0161 /// 0162 0163 class Pythia6 0164 { 0165 public: 0166 0167 // ****** constructors and destructor 0168 Pythia6(); 0169 virtual ~Pythia6(); 0170 0171 static Pythia6 *Instance(); 0172 0173 // ****** TPYTHIA routines 0174 // 0175 int Pycomp(int kf); 0176 void Py1ent(int line, int kf, double pe, double theta, double phi); 0177 ParticleVector* ImportParticles(); 0178 int ImportParticles(ParticleVector* particles, const char* option=""); 0179 0180 // ****** /PYDAT1/ 0181 // 0182 void SetMSTJ(int i, int m ) { fPydat1->MSTJ[i-1] = m; } 0183 0184 // ****** /PYDAT3/ 0185 // 0186 int GetMDCY(int i, int j) { return fPydat3->MDCY[j-1][i-1]; } 0187 int GetKFDP(int i, int j) { return fPydat3->KFDP[j-1][i-1]; } 0188 void SetMDCY(int i, int j, int m) { fPydat3->MDCY[j-1][i-1] = m; } 0189 void SetMDME(int i, int j, int m) { fPydat3->MDME[j-1][i-1] = m; } 0190 0191 private: 0192 static Pythia6* fgInstance; 0193 0194 ParticleVector* fParticles; 0195 Pyjets_t* fPyjets; 0196 Pydat1_t* fPydat1; 0197 Pydat3_t* fPydat3; 0198 }; 0199 0200 #endif
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