ChiGenContext.h

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//****************************************************************************
//*                   This file is part of PandaRoot.                        *
//*                                                                          *
//*            PandaRoot is distributed under the terms of the               *
//*              GNU General Public License (GPL) version 3,                 *
//*                 copied verbatim in the file "LICENSE".                   *
//*                                                                          *
//*  Copyright (C) 2006 - 2024 FAIR GmbH and copyright holders of PandaRoot  *
//*     The copyright holders are listed in the file "COPYRIGHTHOLDERS".     *
//*               The authors are listed in the file "AUTHORS".              *
//****************************************************************************

/*
 * @author Alexey Luchinsky
 * @author Stanislav Poslavsky (stvlpos (at) mail.ru)
 */

#ifndef CHIGENCONTEXT_H
#define CHIGENCONTEXT_H

#include <iostream>
#include <stdio.h>

//---------------------------DEBUG--------------------------------------------//

#define CHIGEN_LOG_FILE "ChiGen.log"

//---------------------------EVTGEN & PYTHIA----------------------------------//
#include "ChiGenRandomEngine.h"
#include "Pythia.h"
#include "EvtGen/EvtGen.hh"
#include "EvtGenExternal/EvtExternalGenList.hh"
#include "EvtGenBase/EvtAbsRadCorr.hh"
#include "EvtGenBase/EvtDecayBase.hh"

//---------------------------PARTICLES----------------------------------------//
/*
 * Particles properties
 */

#define PROTON_MASS 1.0
#define R20_CHI 0.075
#define CHI1_MASS 3.51
#define CHI2_MASS 3.556
#define X3872_MASS 3.872

#define GAMMA_PDG_ID 22
#define E_PDG_ID 11
#define MU_PDG_ID 13
#define PSI_PDG_ID 443

#define CHI1_PDG_ID 20443
#define CHI1_STRING "chi_c1"

#define X3872_PDG_ID 9920443
#define X3872_STRING "X_1(3872)"

#define CHI2_PDG_ID 445
#define CHI2_STRING "chi_c2"

namespace chigen {
extern double elapsedTimeSeconds();
extern long get_seed();

namespace random {
extern ChiGenRandomEngine *random_engine;
extern Pythia8::Rndm *pythia_random_engine;
} // namespace random

namespace evtgen {
extern std::string EvtGenPDL;
extern std::string EvtGenDecFile;
extern std::string EvtGenChiDecFile;
extern bool evt_gen_is_loaded;
extern EvtGen *evt_gen;
extern void read_dec_file(char *dec_file_name);
extern void ensure_evt_gen_is_inialized();
extern std::string chi_c1_str, chi_c2_str, x3872_str;
extern EvtId chi_c1_evt_id, chi_c2_evt_id, x3872_evt_id;
} // namespace evtgen

extern EvtId pdgId2EvtId(int pdgId);

extern bool isPWaveCharmonia(int pdgCode);

extern bool isCharmonia(int pdgCode);

namespace ostreams {
extern bool suppress_all_cout;
extern bool write_log_file;
extern bool suppress_pandaroot;
extern bool suppress_pandaroot_cout;
extern bool verbose_mode;

extern std::ostream *log_file;
extern std::ostream *terminal;
extern std::ostream *tee_stream;
extern std::ostream *chigen_cout;

#define __chigen_cout__ (*chigen::ostreams::chigen_cout) << std::fixed << "[" << chigen::elapsedTimeSeconds() << " ChiGen] "
#define __chigen_direct_cout__ (*chigen::ostreams::chigen_cout)
} // namespace ostreams

namespace pythia {
extern Pythia8::Pythia *pythia;
extern Pythia8::PDF *pdf;
} // namespace pythia

extern void ensure_chigen_is_initialized();
extern void initialize();
extern void initialize(long seed);
} // namespace chigen

#endif /* CHIGENCONTEXT_H */