UKUtility.h File Reference

Go to the source code of this file.

Functions
void	IsotropicR3 (double r, double *pX, double *pY, double *pZ)
void	IsotropicR3 (double r, TVector3 &pos)
void	MomAntiMom (TLorentzVector &mom, double mass, TLorentzVector &antiMom, double antiMass, double initialMass)

Variables
const double	fermi
const double	GeV
const double	hbarc
const double	hbarc_squared
const double	mbarn
const double	MeV
const double	w

Function Documentation

void IsotropicR3	(	double	r,
		double *	pX,
		double *	pY,
		double *	pZ
	)

Definition at line 26 of file UKUtility.cc.

References funct::cos(), hjRandomEngine, phi(), Pi, alignCSCRings::r, and funct::sin().

Referenced by MomAntiMom().

                                                            {
  double pZ  = 1. - 2.*(CLHEP::RandFlat::shoot(hjRandomEngine));
  double st  = TMath::Sqrt(1. - pZ * pZ) * r;
  double phi = 2. * TMath::Pi() * (CLHEP::RandFlat::shoot(hjRandomEngine));

  *x = st * cos(phi);
  *y = st * sin(phi);
  *z = pZ * r;
}

void IsotropicR3	(	double	r,
		TVector3 &	pos
	)

Definition at line 36 of file UKUtility.cc.

References hjRandomEngine, phi(), Pi, and alignCSCRings::r.

                                          {
  double pZ  = 1. - 2.* (CLHEP::RandFlat::shoot(hjRandomEngine));  
  double st  = TMath::Sqrt(1. - pZ * pZ) * r;
  double phi = 2. * TMath::Pi() * (CLHEP::RandFlat::shoot(hjRandomEngine));
  pos.SetX(st * TMath::Cos(phi));
  pos.SetY(st * TMath::Sin(phi));
  pos.SetZ(pZ * r);
}

void MomAntiMom	(	TLorentzVector &	mom,
		double	mass,
		TLorentzVector &	antiMom,
		double	antiMass,
		double	initialMass
	)

Definition at line 45 of file UKUtility.cc.

References IsotropicR3(), and alignCSCRings::r.

                                             {
  double r = initialMass * initialMass - mass * mass - antiMass * antiMass;
  if (r * r - 4 * mass * mass * antiMass * antiMass < 0.) throw "MomAntiMom";
      
  double pAbs = .5 * TMath::Sqrt(r * r - 4 * mass * mass * antiMass * antiMass) / initialMass;
  TVector3 mom3;
  IsotropicR3(pAbs, mom3);
  mom.SetVectM(mom3, mass);
  antiMom.SetVectM(- mom3, antiMass);
}

Variable Documentation

const double fermi

Definition at line 17 of file MathUtil.h.

const double GeV

Definition at line 16 of file MathUtil.h.

Referenced by CMSGDMLWriteStructure::AddExtension(), Rivet::CMS_2013_I1224539_DIJET::analyze(), CustomPhysicsList::ConstructProcess(), CustomPhysicsListSS::ConstructProcess(), HadronPhysicsQGSPCMS_FTFP_BERT::CreateModels(), HadronPhysicsCMS::CreateModels(), Decay3Body::doDecay(), CaloMeanResponse::getWeight(), Rivet::CMS_2013_I1224539_DIJET::init(), TreatSecondary::initTrack(), G4SimEvent::load(), NAStrangeDensity::NAStrangeDensity(), CaloMeanResponse::readResponse(), TreatSecondary::tracks(), and GflashG4Watcher::update().

const double hbarc

Definition at line 18 of file MathUtil.h.

Referenced by NAStrangeDensity::ParticleNumberDensity().

const double hbarc_squared

Definition at line 24 of file UKUtility.cc.

const double mbarn

const double MeV

Referenced by HFWedgeSD::createNewHit(), EcalTBH4BeamSD::EcalTBH4BeamSD(), EcalTBH4BeamSD::getEnergyDeposit(), TreatSecondary::initTrack(), KillSecondariesTrackAction::KillSecondariesTrackAction(), operator<<(), sim::LocalFieldManager::print(), HFChamberSD::ProcessHits(), TreatSecondary::tracks(), TreatSecondary::TreatSecondary(), SaveSimTrack::update(), KillSecondariesTrackAction::update(), EcalTBH4Trigger::update(), and HFWedgeSD::updateHit().

const double w

Definition at line 23 of file UKUtility.cc.

Referenced by MinL3Algorithm::addEvent(), BaseTagInfoPlotter::analyzeTag(), TaggingVariablePlotter::analyzeTag(), PrimaryVertexAssignment::chargedHadronVertex(), PFPileUpAlgo::chargedHadronVertex(), JetCharge::chargeFromRef(), JetCharge::chargeFromValIterator(), RPCEfficiencyShiftHisto::dqmEndJob(), FWFramedTextTableCellRenderer::draw(), FWTextTableCellRenderer::draw(), l1t::EndCapParamsHelper::EndCapParamsHelper(), ESRecHitAnalyticAlgo::EvalAmplitude(), EcalTBEventHeader::eventType(), FWFFHelper::FWFFHelper(), FWTGLViewer::GenerateFbo(), npstat::UniformAxis::getInterval(), l1t::GlobalParamsHelper::GlobalParamsHelper(), graph_tree_output(), InduceChargeFP420::InduceChargeFP420(), GenericMinL3Algorithm::iterate(), npstat::UniformAxis::linearInterval(), FWTGLViewer::MakeFboScale(), FWHistSliceSelector::matchCell(), PropagationDirectionChooser::operator()(), output(), l1t::PrescalesVetosHelper::PrescalesVetosHelper(), VFATFrame::Print(), RPCPackingModule::rawData(), edm::maker::ModuleHolderT< T >::replaceModuleFor(), ParabolaFit::result(), MuonHitsChamberResidual::segment_fit(), FWMuonBuilder::setLineWidth(), RPCSimParam::simulate(), G4SimEvent::weight(), DDCompactViewImpl::weight(), muonisolation::IsolatorByNominalEfficiency::weightedSum(), muonisolation::IsolatorByDeposit::weightedSum(), FWCollectionSummaryModelCellRenderer::width(), and FWTextTreeCellRenderer::width().