CMSEmStandardPhysicsEMH Class Reference

#include <CMSEmStandardPhysicsEMH.h>

Inheritance diagram for CMSEmStandardPhysicsEMH:

Public Member Functions
	CMSEmStandardPhysicsEMH (G4int ver, const edm::ParameterSet &p)
void	ConstructParticle () override
void	ConstructProcess () override
	~CMSEmStandardPhysicsEMH () override

Private Attributes
G4double	fGeomFactor
G4double	fLambdaLimit
G4double	fRangeFactor
G4double	fSafetyFactor
G4MscStepLimitType	fStepLimitType

Detailed Description

Definition at line 10 of file CMSEmStandardPhysicsEMH.h.

Constructor & Destructor Documentation

CMSEmStandardPhysicsEMH()

CMSEmStandardPhysicsEMH::CMSEmStandardPhysicsEMH	(	G4int	ver,
		const edm::ParameterSet &	p
	)

Definition at line 29 of file CMSEmStandardPhysicsEMH.cc.

References fGeomFactor, fLambdaLimit, fRangeFactor, fSafetyFactor, fStepLimitType, AlCaHLTBitMon_ParallelJobs::p, and AlCaHLTBitMon_QueryRunRegistry::string.

    : G4VPhysicsConstructor("CMSEmStandard_emh") {
  SetVerboseLevel(ver);
  G4EmParameters* param = G4EmParameters::Instance();
  param->SetDefaults();
  param->SetVerbose(ver);
  param->SetApplyCuts(true);
  param->SetStepFunction(0.8, 1 * CLHEP::mm);
  param->SetMscRangeFactor(0.2);
  param->SetMscStepLimitType(fUseSafety);
  param->SetFluo(false);
  SetPhysicsType(bElectromagnetic);
  fRangeFactor = p.getParameter<double>("G4MscRangeFactor");
  fGeomFactor = p.getParameter<double>("G4MscGeomFactor");
  fSafetyFactor = p.getParameter<double>("G4MscSafetyFactor");
  fLambdaLimit = p.getParameter<double>("G4MscLambdaLimit") * CLHEP::mm;
  std::string msc = p.getParameter<std::string>("G4MscStepLimit");
  fStepLimitType = fUseSafety;
  if (msc == "UseSafetyPlus") {
    fStepLimitType = fUseSafetyPlus;
  }
  if (msc == "Minimal") {
    fStepLimitType = fMinimal;
  }
  double tcut = p.getParameter<double>("G4TrackingCut") * CLHEP::MeV;
  param->SetLowestElectronEnergy(tcut);
  param->SetLowestMuHadEnergy(tcut);
}

~CMSEmStandardPhysicsEMH()

CMSEmStandardPhysicsEMH::~CMSEmStandardPhysicsEMH ( )

override

Definition at line 58 of file CMSEmStandardPhysicsEMH.cc.

{}

Member Function Documentation

ConstructParticle()

void CMSEmStandardPhysicsEMH::ConstructParticle ( )

override

Definition at line 60 of file CMSEmStandardPhysicsEMH.cc.

                                                {
  // minimal set of particles for EM physics
  G4EmBuilder::ConstructMinimalEmSet();
}

ConstructProcess()

void CMSEmStandardPhysicsEMH::ConstructProcess ( )

override

Definition at line 65 of file CMSEmStandardPhysicsEMH.cc.

References nanoDQM_cfi::Electron, and HLT_2023v12_cff::verboseLevel.

                                               {
  if (verboseLevel > 0) {
    edm::LogVerbatim("PhysicsList") << "### " << GetPhysicsName() << " Construct EM Processes";
  }

  // This EM builder takes default models of Geant4 10 EMV.
  // Multiple scattering by WentzelVI for all particles except:
  //   a) e+e- below 100 MeV for which the Urban model is used
  //   b) ions for which Urban model is used
  G4EmBuilder::PrepareEMPhysics();

  G4PhysicsListHelper* ph = G4PhysicsListHelper::GetPhysicsListHelper();
  // processes used by several particles
  G4hMultipleScattering* hmsc = new G4hMultipleScattering("ionmsc");
  G4NuclearStopping* pnuc(nullptr);

  G4HepEmProcess* hepEmProcess = new G4HepEmProcess();
  G4Electron::Electron()->GetProcessManager()->AddProcess(hepEmProcess, -1, -1, 1);
  G4Positron::Positron()->GetProcessManager()->AddProcess(hepEmProcess, -1, -1, 1);
  G4Gamma::Gamma()->GetProcessManager()->AddProcess(hepEmProcess, -1, -1, 1);

  // generic ion
  G4ParticleDefinition* particle = G4GenericIon::GenericIon();
  G4ionIonisation* ionIoni = new G4ionIonisation();
  ph->RegisterProcess(hmsc, particle);
  ph->RegisterProcess(ionIoni, particle);

  // muons, hadrons ions
  G4EmBuilder::ConstructCharged(hmsc, pnuc);
}

Member Data Documentation

fGeomFactor

G4double CMSEmStandardPhysicsEMH::fGeomFactor

private

Definition at line 20 of file CMSEmStandardPhysicsEMH.h.

Referenced by CMSEmStandardPhysicsEMH().

fLambdaLimit

G4double CMSEmStandardPhysicsEMH::fLambdaLimit

private

Definition at line 22 of file CMSEmStandardPhysicsEMH.h.

Referenced by CMSEmStandardPhysicsEMH().

fRangeFactor

G4double CMSEmStandardPhysicsEMH::fRangeFactor

private

Definition at line 19 of file CMSEmStandardPhysicsEMH.h.

Referenced by CMSEmStandardPhysicsEMH().

fSafetyFactor

G4double CMSEmStandardPhysicsEMH::fSafetyFactor

private

Definition at line 21 of file CMSEmStandardPhysicsEMH.h.

Referenced by CMSEmStandardPhysicsEMH().

fStepLimitType

G4MscStepLimitType CMSEmStandardPhysicsEMH::fStepLimitType

private

Definition at line 23 of file CMSEmStandardPhysicsEMH.h.

Referenced by CMSEmStandardPhysicsEMH().