CMSHadronPhysicsFTFP_BERT.cc

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//
#include <iomanip>

#include "SimG4Core/PhysicsLists/interface/CMSHadronPhysicsFTFP_BERT.h"

#include "globals.hh"
#include "G4ios.hh"
#include "G4SystemOfUnits.hh"
#include "G4ParticleDefinition.hh"
#include "G4ParticleTable.hh"
#include "G4PionBuilder.hh"
#include "G4BertiniPionBuilder.hh"
#include "G4FTFPPionBuilder.hh"

#include "G4KaonBuilder.hh"
#include "G4BertiniKaonBuilder.hh"
#include "G4FTFPKaonBuilder.hh"

#include "G4ProtonBuilder.hh"
#include "G4BertiniProtonBuilder.hh"
#include "G4FTFPNeutronBuilder.hh"
#include "G4FTFPProtonBuilder.hh"

#include "G4NeutronBuilder.hh"
#include "G4BertiniNeutronBuilder.hh"
#include "G4FTFPNeutronBuilder.hh"

#include "G4HyperonFTFPBuilder.hh"
#include "G4AntiBarionBuilder.hh"
#include "G4FTFPAntiBarionBuilder.hh"

#include "G4MesonConstructor.hh"
#include "G4BaryonConstructor.hh"
#include "G4ShortLivedConstructor.hh"

#include "G4ComponentGGHadronNucleusXsc.hh"
#include "G4CrossSectionInelastic.hh"
#include "G4HadronCaptureProcess.hh"
#include "G4NeutronRadCapture.hh"
#include "G4NeutronInelasticXS.hh"
#include "G4NeutronCaptureXS.hh"

#include "G4CrossSectionDataSetRegistry.hh"

#include "G4PhysListUtil.hh"
#include "G4ProcessManager.hh"
#include "G4Threading.hh"

CMSHadronPhysicsFTFP_BERT::CMSHadronPhysicsFTFP_BERT(G4int)
    : G4VPhysicsConstructor("hInelastic CMS FTFP_BERT"), QuasiElastic(false) {
  minFTFP_pion = 4.0 * GeV;
  maxBERT_pion = 5.0 * GeV;
  minFTFP_kaon = 4.0 * GeV;
  maxBERT_kaon = 5.0 * GeV;
  minFTFP_proton = 4.0 * GeV;
  maxBERT_proton = 5.0 * GeV;
  minFTFP_neutron = 4.0 * GeV;
  maxBERT_neutron = 5.0 * GeV;
}

CMSHadronPhysicsFTFP_BERT::~CMSHadronPhysicsFTFP_BERT() {
  //Detele master-owned stuff
  delete xs_k.Get();
  std::for_each(xs_ds.Begin(), xs_ds.End(), [](G4VCrossSectionDataSet* el) { delete el; });
}

void CMSHadronPhysicsFTFP_BERT::ConstructParticle() {
  G4MesonConstructor pMesonConstructor;
  pMesonConstructor.ConstructParticle();

  G4BaryonConstructor pBaryonConstructor;
  pBaryonConstructor.ConstructParticle();

  G4ShortLivedConstructor pShortLivedConstructor;
  pShortLivedConstructor.ConstructParticle();
}

void CMSHadronPhysicsFTFP_BERT::TerminateWorker() {
  delete xs_k.Get();
  std::for_each(xs_ds.Begin(), xs_ds.End(), [](G4VCrossSectionDataSet* el) { delete el; });
  xs_ds.Clear();
  G4VPhysicsConstructor::TerminateWorker();
}

void CMSHadronPhysicsFTFP_BERT::DumpBanner() {
  G4cout << G4endl << " FTFP_BERT : new threshold between BERT and FTFP is over the interval " << G4endl
         << " for pions :   " << minFTFP_pion / GeV << " to " << maxBERT_pion / GeV << " GeV" << G4endl
         << " for kaons :   " << minFTFP_kaon / GeV << " to " << maxBERT_kaon / GeV << " GeV" << G4endl
         << " for proton :  " << minFTFP_proton / GeV << " to " << maxBERT_proton / GeV << " GeV" << G4endl
         << " for neutron : " << minFTFP_neutron / GeV << " to " << maxBERT_neutron / GeV << " GeV" << G4endl << G4endl;
}

void CMSHadronPhysicsFTFP_BERT::CreateModels() {
  Neutron();
  Proton();
  Pion();
  Kaon();
  Others();
}

void CMSHadronPhysicsFTFP_BERT::Neutron() {
  //General schema:
  // 1) Create a builder
  // 2) Call AddBuilder
  // 3) Configure the builder, possibly with sub-builders
  // 4) Call builder->Build()
  auto neu = new G4NeutronBuilder;
  AddBuilder(neu);
  auto ftfpn = new G4FTFPNeutronBuilder(QuasiElastic);
  AddBuilder(ftfpn);
  neu->RegisterMe(ftfpn);
  ftfpn->SetMinEnergy(minFTFP_neutron);
  auto bertn = new G4BertiniNeutronBuilder;
  AddBuilder(bertn);
  neu->RegisterMe(bertn);
  bertn->SetMinEnergy(0. * GeV);
  bertn->SetMaxEnergy(maxBERT_neutron);
  neu->Build();
}

void CMSHadronPhysicsFTFP_BERT::Proton() {
  auto pro = new G4ProtonBuilder;
  AddBuilder(pro);
  auto ftfpp = new G4FTFPProtonBuilder(QuasiElastic);
  AddBuilder(ftfpp);
  pro->RegisterMe(ftfpp);
  ftfpp->SetMinEnergy(minFTFP_proton);
  auto bertp = new G4BertiniProtonBuilder;
  AddBuilder(bertp);
  pro->RegisterMe(bertp);
  bertp->SetMaxEnergy(maxBERT_proton);
  pro->Build();
}

void CMSHadronPhysicsFTFP_BERT::Pion() {
  auto pi = new G4PionBuilder;
  AddBuilder(pi);
  auto ftfppi = new G4FTFPPionBuilder(QuasiElastic);
  AddBuilder(ftfppi);
  pi->RegisterMe(ftfppi);
  ftfppi->SetMinEnergy(minFTFP_pion);
  auto bertpi = new G4BertiniPionBuilder;
  AddBuilder(bertpi);
  pi->RegisterMe(bertpi);
  bertpi->SetMaxEnergy(maxBERT_pion);
  pi->Build();
}

void CMSHadronPhysicsFTFP_BERT::Kaon() {
  auto k = new G4KaonBuilder;
  AddBuilder(k);
  auto ftfpk = new G4FTFPKaonBuilder(QuasiElastic);
  AddBuilder(ftfpk);
  k->RegisterMe(ftfpk);
  ftfpk->SetMinEnergy(minFTFP_kaon);
  auto bertk = new G4BertiniKaonBuilder;
  AddBuilder(bertk);
  k->RegisterMe(bertk);
  bertk->SetMaxEnergy(maxBERT_kaon);
  k->Build();
}

void CMSHadronPhysicsFTFP_BERT::Others() {
  //===== Hyperons ====== //
  auto hyp = new G4HyperonFTFPBuilder;
  AddBuilder(hyp);
  hyp->Build();

  auto abar = new G4AntiBarionBuilder;
  AddBuilder(abar);
  auto ftfpabar = new G4FTFPAntiBarionBuilder(QuasiElastic);
  AddBuilder(ftfpabar);
  abar->RegisterMe(ftfpabar);
  abar->Build();
}

void CMSHadronPhysicsFTFP_BERT::ConstructProcess() {
  if (G4Threading::IsMasterThread()) {
    DumpBanner();
  }
  CreateModels();
  ExtraConfiguration();
}

void CMSHadronPhysicsFTFP_BERT::ExtraConfiguration() {
  //Modify XS for kaons
  auto xsk = new G4ComponentGGHadronNucleusXsc();
  xs_k.Put(xsk);
  G4VCrossSectionDataSet* kaonxs = new G4CrossSectionInelastic(xsk);
  xs_ds.Push_back(kaonxs);
  G4PhysListUtil::FindInelasticProcess(G4KaonMinus::KaonMinus())->AddDataSet(kaonxs);
  G4PhysListUtil::FindInelasticProcess(G4KaonPlus::KaonPlus())->AddDataSet(kaonxs);
  G4PhysListUtil::FindInelasticProcess(G4KaonZeroShort::KaonZeroShort())->AddDataSet(kaonxs);
  G4PhysListUtil::FindInelasticProcess(G4KaonZeroLong::KaonZeroLong())->AddDataSet(kaonxs);

  //Modify Neutrons
  auto xs_n_in = (G4NeutronInelasticXS*)G4CrossSectionDataSetRegistry::Instance()->GetCrossSectionDataSet(
      G4NeutronInelasticXS::Default_Name());
  xs_ds.Push_back(xs_n_in);  //TODO: Is this needed? Who owns the pointer?
  G4PhysListUtil::FindInelasticProcess(G4Neutron::Neutron())->AddDataSet(xs_n_in);
  G4HadronicProcess* capture = nullptr;
  G4ProcessManager* pmanager = G4Neutron::Neutron()->GetProcessManager();
  G4ProcessVector* pv = pmanager->GetProcessList();
  for (size_t i = 0; i < static_cast<size_t>(pv->size()); ++i) {
    if (fCapture == ((*pv)[i])->GetProcessSubType()) {
      capture = static_cast<G4HadronicProcess*>((*pv)[i]);
    }
  }
  if (!capture) {
    capture = new G4HadronCaptureProcess("nCapture");
    pmanager->AddDiscreteProcess(capture);
  }
  auto xs_n_c = (G4NeutronCaptureXS*)G4CrossSectionDataSetRegistry::Instance()->GetCrossSectionDataSet(
      G4NeutronCaptureXS::Default_Name());
  xs_ds.Push_back(xs_n_c);
  capture->AddDataSet(xs_n_c);
  capture->RegisterMe(new G4NeutronRadCapture());
}