G4TextPPRetriever.cc

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#include "G4TextPPRetriever.hh"
 
#include "G4DecayTable.hh"
#include "G4ParticleDefinition.hh"
#include "G4ParticleTable.hh"
#include "G4SystemOfUnits.hh"
#include "G4Tokenizer.hh"
#include "G4VDecayChannel.hh"
#include "G4ios.hh"
#include "globals.hh"
 
#include <fstream>
 
void G4TextPPRetriever::Retrieve(const G4String& option)
{
  SparseOption(option);
 
  // pointer to the particle table
  G4ParticleTable* theParticleTable = G4ParticleTable::GetParticleTable();
  G4ParticleTable::G4PTblDicIterator* theParticleIterator;
  theParticleIterator = theParticleTable->GetIterator();
 
  // loop over all particles in G4ParticleTable
  theParticleIterator->reset();
  while ((*theParticleIterator)()) {  // Loop checking, 09.08.2015, K.Kurashige
    G4ParticleDefinition* particle = theParticleIterator->value();
    ModifyPropertyTable(particle);
  }
}
 
void G4TextPPRetriever::SparseOption(const G4String& option)
{
  G4Tokenizer savedToken(option);
 
  // 1st option : base directory
  baseDir = savedToken();
  if (!baseDir.empty()) {
    if (baseDir.back() != '/') {
      baseDir += "/";
    }
  }
}
 
G4bool G4TextPPRetriever::ModifyPropertyTable(const G4ParticleDefinition* particle)
{
  G4String name = particle->GetParticleName();
 
  //--- open file -----
  G4String fileName = baseDir + name + ".txt";
  // exception
  if (name == "J/psi") fileName = baseDir + "jpsi.txt";
 
  std::ifstream inFile(fileName, std::ios::in);
  if (!inFile) return false;
 
  // GetParticleProperty
  G4ParticlePropertyData* pData = pPropertyTable->GetParticleProperty(name);
 
  // particle name  encoding
  G4String name_t;
  G4int encoding;
  inFile >> name_t >> encoding;
  if ((name != name_t) || (encoding != pData->GetPDGEncoding())) {
    G4cout << "G4TextPPRetriever::ModifyPropertyTable:   ";
    G4cout << "particle name or encoding mismatch for " << name;
    G4cout << G4endl;
    return false;
  }
 
  // IJPC
  G4int iIsoSpin, iSpin, iParity, iConj;
  inFile >> iIsoSpin >> iSpin >> iParity >> iConj;
  if ((iIsoSpin != pData->GetPDGiIsospin()) || (iSpin != pData->GetPDGiSpin())
      || (iParity != pData->GetPDGiParity()) || (iConj != pData->GetPDGiConjugation()))
  {
    G4cout << "G4TextPPRetriever::ModifyPropertyTable:   ";
    G4cout << "IJPC mismatch for " << name;
    G4cout << G4endl;
    return false;
  }
 
  // mass, width, charge
  G4double mass, width, charge;
  inFile >> mass >> width >> charge;
  mass *= GeV;
  width *= GeV;
  charge *= eplus;
  if (mass != pData->GetPDGMass()) {
    pData->SetPDGMass(mass);
  }
  if (width != pData->GetPDGWidth()) {
    pData->SetPDGWidth(width);
  }
  if (charge != pData->GetPDGCharge()) {
    pData->SetPDGCharge(charge);
  }
 
  // life time
  G4double tlife;
  inFile >> tlife;
  tlife *= second;
  if (tlife != pData->GetPDGLifeTime()) {
    pData->SetPDGLifeTime(tlife);
  }
 
  pPropertyTable->SetParticleProperty(*pData);
 
  // Decay Table
  G4DecayTable* dcyTable = particle->GetDecayTable();
  if (dcyTable == nullptr) return true;
 
  G4int idx = 0;
  while (!inFile.eof()) {  // Loop checking, 09.08.2015, K.Kurashige
    G4double br;
    G4int n_daughters;
    inFile >> br >> n_daughters;
 
    G4VDecayChannel* channel = dcyTable->GetDecayChannel(idx);
 
    if (n_daughters == channel->GetNumberOfDaughters()) {
      channel->SetBR(br);
    }
 
    idx += 1;
    if (idx >= dcyTable->entries()) break;
  }
  return true;
}