ParticleName.cc

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#include "Rivet/ParticleName.hh"
#include "Rivet/RivetBoost.hh"
#include "Rivet/Tools/Utils.hh"

namespace Rivet {


  // Initialise ParticleNames singleton pointer
  ParticleNames* ParticleNames::_instance = 0;



  const std::string& ParticleNames::_particleName(PdgId pid) {
    if (_ids_names.find(pid) == _ids_names.end()) {
      throw PidError("Particle ID '" + lexical_cast<string>(pid) + "' not known.");
    }
    return _ids_names[pid];
  }


  PdgId ParticleNames::_particleId(const std::string& pname) {
    if (_names_ids.find(pname) == _names_ids.end()) {
      if (toUpper(pname) == "P+" || toUpper(pname) == "P") return PROTON;
      if (toUpper(pname) == "P-" || toUpper(pname) == "PBAR") return ANTIPROTON;
      if (toUpper(pname) == "E-") return ELECTRON;
      if (toUpper(pname) == "E+") return POSITRON;
      if (toUpper(pname) == "GAMMA") return PHOTON;
      if (toUpper(pname) == "N") return NEUTRON;
      try {
        PdgId rtn = lexical_cast<PdgId>(pname);
        return rtn;
      } catch (const bad_lexical_cast& blc) {
        throw PidError("Particle name '" + pname + "' not known and could not be directly cast to a PDG ID.");
      }
    }
    return _names_ids[pname];
  }


}