Decay classes

These classes perform the decays. More...

Classes
class	Herwig::Baryon1MesonDecayerBase
	The Baryon1MesonDecayerBase class is the base class for the decay of a baryon to another baryon and a pseudoscalar or vector meson. More...
class	Herwig::BaryonFactorizedDecayer
	The BaryonFactorizedDecayer class is designed to combine the form factor for a weak baryon transition and a weak decay current to produce a decayer. More...
class	Herwig::KornerKramerCharmDecayer
	The KornerKramerCharmDecayer class implements the model of Z.Phys.C55,659 (1992) for the non-leptonic decay of charm baryons. More...
class	Herwig::NonLeptonicHyperonDecayer
	This is a general class for the non-leptonic decay of hyperons. More...
class	Herwig::NonLeptonicOmegaDecayer
	The NonLeptonicOmegaDecayer class is designed for the non-leptonic weak decay of the Omega to a baryon from the lightest \(SU(3)\) octet and a pseudoscalar meson. More...
class	Herwig::OmegaXiStarPionDecayer
	The OmegaXiStarPionDecayer class implements the results of hep-ph/0405162 for the weak decay of the \(\Omega\) to the \(\Xi^*\) and a pion. More...
class	Herwig::RadiativeDoublyHeavyBaryonDecayer
	The RadiativeDoublyHeavyBaryonDecayer class is designed for the radiative decay of a baryon containing a heavy quark to another baryon containing a heavy quark. More...
class	Herwig::RadiativeHeavyBaryonDecayer
	The RadiativeHeavyBaryonDecayer class is designed for the radiative decay of a baryon containing a heavy quark to another baryon containing a heavy quark. More...
class	Herwig::SemiLeptonicBaryonDecayer
	The SemiLeptonicBaryonDecayer class is designed for the semi-leptonic decay of the baryons. More...
class	Herwig::StrongHeavyBaryonDecayer
	The StrongHeavyBaryonDecayer class implements the strong decays of charm baryons using the results of hep-ph/9904421. More...
class	Herwig::SU3BaryonDecupletOctetPhotonDecayer
	The SU3BaryonDecupletOctetPhotonDecayer class is designed for the decay of a deculpet baryon to an octet baryon and a photon using the SU(3) conserving term in the chiral lagrangian. More...
class	Herwig::SU3BaryonDecupletOctetScalarDecayer
	The SU3BaryonDecupletOctetScalarDecayer class is designed for the decay of a \(SU(3)\) deculpet baryon to an octet baryon and a pseudoscalar meson from the lightest multiplet. More...
class	Herwig::SU3BaryonOctetDecupletScalarDecayer
	The SU3BaryonOctetDecupletScalarDecayer class is designed for the decay of an SU(3) octet baryon to a deculpet baryon and a pseudoscalar meson from the lightest multiplet. More...
class	Herwig::SU3BaryonOctetOctetPhotonDecayer
	The SU3BaryonOctetOctetPhotonDecayer class performs the decay of a baryon octet to a different baryon octet and a photon. More...
class	Herwig::SU3BaryonOctetOctetScalarDecayer
	The SU3BaryonOctetOctetScalarDecayer class is a simple decayer for the strong decay of the excited baryon \(SU(3)\) octets to lower lying baryon octets and a pseudoscalar meson from the lightest multiplet, i.e. More...
class	Herwig::SU3BaryonSingletOctetPhotonDecayer
	The SU3BaryonSingletOctetPhotonDecayer class performs the radiative decay of an \(SU(3)\) singlet baryon to an \(SU(3)\) octet baryon. More...
class	Herwig::SU3BaryonSingletOctetScalarDecayer
	The SU3BaryonSingletOctetScalarDecayer class is a simple decayer for the strong decay of the excited baryon \(SU(3)\) singlets to a lighter baryon octet and a pseudoscalar meson from the lightest multiplet, i.e. More...
class	Herwig::BranchingRatioReweighter
	The BranchingRatioReweighter class is designed to reweight events where some decay modes of a particle, or many particles, have been switched off in order to improve the statistics. More...
class	Herwig::BallZwickyScalarFormFactor
	This class is the implementation of the form-factors of PRD71 014015 (2005) for the form-factor for the decay of a B-meson to a light pseudoscalar meson. More...
class	Herwig::BallZwickyVectorFormFactor
	The BallZwickyVectorFormFactor class implements the form-factors of hep-ph/0412079 for the B meson to light vector mesons. More...
class	Herwig::BaryonFormFactor
	The BaryonFormFactor class is the base class for the implementation of the form-factors for the weak decay of a baryon. More...
class	Herwig::BaryonSimpleFormFactor
	The BaryonSimpleFormFactor class is a simple model for the form-factors for the semi-leptonic decay of the light (i.e. More...
class	Herwig::BaryonThreeQuarkModelFormFactor
	The BaryonThreeQuarkModelFormFactor class implements the form factors for the semi-leptonic decay of baryons containing a heavy quark from the relativistic three-quark model calculation of PRD56, 348. More...
class	Herwig::BtoSGammaFlatEnergy
	The BtoSGammaFlatEnergy class is a model of the hadronic mass is \(B\to s\gamma\) decays which produces a flat photon energy spectrum and as such is only intended for testing purposes. More...
class	Herwig::BtoSGammaHadronicMass
	The BtoSGammaHadronicMass class is the base class for the implementation of models of the hadronic mass spectrum in \(B\to s\gamma\) decays. More...
class	Herwig::BtoSGammaKagan
	The BtoSGammaKagan class implements the model of hep-ph/9805303 for the hadronic mass spectrum in \(b\to s \gamma\) decays. More...
class	Herwig::ChengHeavyBaryonFormFactor
	The ChengHeavyBaryonFormFactor class implements the form-factors from PRD53, 1457 and PRD56, 2799 for the semi-leptonic decay of bottom and charm hadrons. More...
class	Herwig::ISGW2FormFactor
	The ISGW2FormFactor class is the implementation of the ISGW2 model of Phys. More...
class	Herwig::ISGWFormFactor
	The ISGWFormFactor class is the implementation of the ISGW model of Phys. More...
class	Herwig::KiselevBcFormFactor
	The KiselevBcFormFactor class implements the form factors from hep-ph/0211021 for the decays of \(B_c\) mesons. More...
class	Herwig::LambdabExcitedLambdacSumRuleFormFactor
	The LambdabExcitedLambdacSumRuleFormFactor class implements the form-factors of hep-ph/0012114 for the decay of the \(Lambda_b^0\) to excited \(\Lambda^+_c\) states. More...
class	Herwig::LightBaryonQuarkModelFormFactor
	The LightBaryonQuarkModelFormFactor class implements the quark model calculation of hep-ph/9409272 for the form-factors for the decay of baryons containing the light quarks. More...
class	Herwig::MelikhovFormFactor
	The MelikhovFormFactor class implements the model of Phys. More...
class	Herwig::MelikhovStechFormFactor
	The MelikhovStechFormFactor class is the implementation of the form factors from Phys. More...
class	Herwig::ScalarFormFactor
	The ScalarFormFactor class is the base class for the form factors for the weak decay of scalar to scalar, vector and tensor mesons. More...
class	Herwig::SingletonFormFactor
	The SingletonFormFactor class implements the form-factors from PRD43, 2939 for the decay of spin-1/2 baryons containing bottom and charm quarks. More...
class	Herwig::WSBFormFactor
	The WSBFormFactor class is the implementation of the form factor model of Z.Phys. More...
class	Herwig::FFSDecayer
	The FFSDecayer class implements the decay of a fermion to a fermion and a vector in a general model. More...
class	Herwig::FFVDecayer
	The FFVDecayer class implements the decay of a fermion to a fermion and a vector in a general model. More...
class	Herwig::FRSDecayer
	The FRSDecayer class implements the decay of a fermion to a spin-3/2 fermion and a vector in a general model. More...
class	Herwig::FRVDecayer
	The FRVDecayer class implements the decay of a fermion to a spin-3/2 fermion and a vector in a general model. More...
class	Herwig::GeneralTwoBodyDecayer
	The GeneralTwoBodyDecayer class is designed to be the base class for 2 body decays for some general model. More...
class	Herwig::SFFDecayer
	The SFFDecayer class implements the decay of a scalar to 2 fermions in a general model. More...
class	Herwig::SRFDecayer
	The SRFDecayer class implements the decay of a scalar to spin-3/2 and spin-1/2 fermion in a general model. More...
class	Herwig::SSSDecayer
	The SSDecayer class implements the decay of a scalar to 2 scalars in a general model. More...
class	Herwig::SSVDecayer
	The SSVDecayer class implements the decay of a scalar to a vector and a scalar in a general model. More...
class	Herwig::SVVDecayer
	This SVVDecayer class implements the decay of a scalar to 2 vector bosons using either the tree level VVSVertex or the loop vertex. More...
class	Herwig::TFFDecayer
	The TFFDecayer class implements the decay of a tensor to 2 fermions in a general model. More...
class	Herwig::TSSDecayer
	The TSSDecayer class implements the decay of a tensor to 2 scalars in a general model. More...
class	Herwig::TVVDecayer
	The TVVDecayer class implements the decay of a tensor to 2 vector bosons in a general model. More...
class	Herwig::VFFDecayer
	The VFFDecayer class implements the decay of a vector to 2 fermions in a general model. More...
class	Herwig::VSSDecayer
	The VSSDecayer class implements the decay of a vector to 2 scalars in a general model. More...
class	Herwig::VVSDecayer
	The VVSDecayer class implements the decay of a vector to a vector and a scalar in a general model. More...
class	Herwig::VVVDecayer
	The VVVDecayer class implements the decay of a vector to 2 vectors in a general model. More...
class	Herwig::HQETRadiativeDecayer
	The HQETRadiativeDecayer class implements the electromagnetic decays of excited heavy, i.e. More...
class	Herwig::HQETStrongDecayer
	The HQETStrongDecayer class implements the strong decays of excited heavy, i.e. More...
class	Herwig::Hw64Decayer
	Hw64Decayer is a class that defines all the general routines used in HERWIG++ to imitate the HERWIG 6.4 decays. More...
class	Herwig::HwDecayHandler
	The HwDecayHandler is the Herwig decay handler which administers the decays of unstable particles in Herwig. More...
class	Herwig::HeavyDecayer
	This class is designed for the partonic decay of a bottom or charm mesons and baryons and is intended to be the same as that in HERWIG6.4. More...
class	Herwig::QuarkoniumDecayer
	The QuarkoniumDecayer class is designed for the partonic decay of bottom and charmonium resonances. More...
class	Herwig::SMTopDecayer
	The SMTopDecayer performs decays of the top quark into the bottom quark and qqbar pairs or to the bottom quark and lepton neutrino pairs via W boson exchange. More...
class	Herwig::SMWDecayer
	The SMWDecayer is designed to perform the decay of the W boson to the Standard Model fermions, including the first order electroweak corrections. More...
class	Herwig::SMZDecayer
	The SMZDecayer is designed to perform the decay of the Z boson to the Standard Model fermions. More...
class	Herwig::PhaseSpaceChannel
	This class is designed to store the information needed for a given phase-space channel for use by the multi-channel phase space decayer and perform the generation of the phase space for that channel. More...
class	Herwig::PhaseSpaceMode
	The PhaseSpaceMode class is designed to store a group of phase-space channels for use by the DecayIntegrator class to generate the phase-space for a given decay mode. More...
class	Herwig::FFDipole
	The FFDipole class generates radiation from a final-final dipole for the generation of photons in decay by the SOPTHY algorithm. More...
class	Herwig::IFDipole
	The IFDipole class generates radiation from a final-final dipole for the generation of photons in decay by the SOPTHY algorithm. More...
class	Herwig::SOPHTY
	Here is the documentation of the SOPHTY class. More...
class	Herwig::EtaPiGammaGammaDecayer
	The EtaPiGammaGammaDecayer class implements a VMD model matrix element for \(\eta,\eta'\to \pi^0 \gamma \gamma\) taken from hep-ph/0112150. More...
class	Herwig::EtaPiPiFermionsDecayer
	The EtaPiPiFermionsDecayer class implements the decay of the \(\eta\) or \(\eta'\) to \(\pi^+\pi^-\gamma\) using either a VMD type model or a model using either the theoretical or experimental form of the Omnes function taken from hep-ph/0112150. More...
class	Herwig::EtaPiPiGammaDecayer
	The EtaPiPiGammaDecayer class implements the decay of the \(\eta\) or \(\eta'\) to \(\pi^+\pi^-\gamma\) using either a VMD type model or a model using either the theoretical or experimental form of the Omnes function taken from hep-ph/0112150. More...
class	Herwig::EtaPiPiPiDecayer
	The EtaPiPiPiDecayer class is designed for the simulation of the decay of the \(\eta\) or \(\eta'\) to either \(\pi^+\pi^-\pi^0\) or \(\pi^0\pi^0\pi^0\) and the decay of the \(\eta'\) to \(\pi^+\pi^-\eta\) or \(\pi^0\pi^0\eta\). More...
class	Herwig::PScalar4FermionsDecayer
	The PScalar4FermionsDecayer class is designed for the decay of the neutral pion to four leptons, in this case electrons. More...
class	Herwig::PScalarLeptonNeutrinoDecayer
	The PScalarLeptonNeutrinoDecayer class is designed for the decay of pseudoscalar mesons to a lepton and a neutrino. More...
class	Herwig::PScalarPScalarVectorDecayer
	The PScalarPScalarVectorDecayer class is designed to perform the decay of a pseudoscalar meson to another pseudoscalar meson and a vector meson. More...
class	Herwig::PScalarVectorFermionsDecayer
	The PScalarVectorFermionsDecayer class is designed for the decay of a pseudoscalar meson to a spin-1 particle and a fermion-antifermion pair. More...
class	Herwig::PScalarVectorVectorDecayer
	The PScalarVectorVectorDecayer class is designed to perform the decay of a pseudoscalar meson to two spin-1 particles. More...
class	Herwig::ScalarMesonFactorizedDecayer
	The ScalarMesonFactorizedDecayer class is a class which combines a WeakCurrent and a ScalarFormFactor in the naive factorization approximation to perform the non-leptonic weak decays of scalar mesons. More...
class	Herwig::ScalarScalarScalarDecayer
	The ScalarScalarScalarDecayer class is designed for the decay of a scalar meson to two scalar mesons. More...
class	Herwig::SemiLeptonicScalarDecayer
	The SemiLeptonicScalarDecayer class is designed for the semileptonic decay of a (pesudo)scalar meson to another meson and a lepton/neutino pair. More...
class	Herwig::TauDecayer
	The TauDecayer class performs the decay of the \(\tau\). More...
class	Herwig::PseudoTensorMesonTensorVectorDecayer
	The PseudoTensorMesonTensorVectorDecayer class handles the decay of a tensor meson to tensor and a scalar meson. More...
class	Herwig::PseudoTensorMesonVectorVectorDecayer
	The PseudoTensorMesonVectorVectorDecayer class handles the decay of a pseudotensor meson to two vector mesons. More...
class	Herwig::Spin3Meson2PScalarDecayer
	The Spin3Meson2PScalarDecayer class is designed for the decay of a rank 3 tensor meson to two pseudoscalars via matrix element which takes the form. More...
class	Herwig::Spin3MesonTensorPScalarDecayer
	The Spin3MesonTensorPScalarDecayer class is designed for the decay of a rank 3 tensor meson to a tensor and a scalar via matrix element which takes the form. More...
class	Herwig::Spin3MesonTensorVectorDecayer
	The Spin3MesonTensorVectorDecayer class is designed for the decay of a rank 3 tensor meson to a tensor and a vector via matrix element which takes the form. More...
class	Herwig::Spin3MesonVectorPScalarDecayer
	The Spin3MesonVectorPScalarDecayer class is designed for the decay of a rank 3 tensor meson to a vector and a scalar via matrix element which takes the form. More...
class	Herwig::Spin3MesonVectorScalarDecayer
	The Spin3MesonVectorScalarDecayer class is designed for the decay of a rank 3 tensor meson to a vector and a scalar via matrix element which takes the form. More...
class	Herwig::TensorMeson2PScalarDecayer
	The TensorMeson2PScalarDecayer class is designed for the decay of a tensor meson to two pseudoscalars via matrix element which takes the form. More...
class	Herwig::TensorMesonSpin3VectorDecayer
	The TensorMesonSpin3VectorDecayer class is designed for the decay of a tensor meson to a rank 3 tensor and a vector via matrix element which takes the form. More...
class	Herwig::TensorMesonTensorPScalarDecayer
	The TensorMesonTensorPScalarDecayer class handles the decay of a tensor meson to tensor and a scalar meson. More...
class	Herwig::TensorMesonTensorScalarDecayer
	The TensorMesonTensorScalarDecayer class handles the decay of a tensor meson to tensor and a scalar meson. More...
class	Herwig::TensorMesonVectorPScalarDecayer
	The TensorMesonVectorPScalarDecayer class handles the decay of a tensor meson to a vector and a pseudoscalar. More...
class	Herwig::TensorMesonVectorScalarDecayer
	The TensorMesonVectorScalarDecayer class handles the decay of a tensor meson to vector and a scalar meson. More...
class	Herwig::TensorMesonVectorVectorDecayer
	The TensorMesonVectorVectorDecayer class is designed to simulate the decay of a tensor meson to two spin-1 particles. More...
class	Herwig::a1ThreePionCLEODecayer
	The a1ThreePionCLEODecayer class is designed to implement the decay of the \(a_1\) to three pions using the model of Phys.Rev.D61:012002,2000, (hep-ex/9902022) (CLEO) which was fitted to the one charged and two neutral pion channel for the charged \(a_1\) decay in \(\tau \to a_1 -> \pi\pi\pi\). More...
class	Herwig::a1ThreePionDecayer
	The a1ThreePionDecayer class is designed to implement the decay of the a_1 to three pions. More...
class	Herwig::OniumToOniumPiPiDecayer
	The OniumToOniumPiPiDecayer class uses the matrix element of Brown and Cahn PRL35, 1 (1975) for the decay of onium resonaces to lighter states and pion pairs. More...
class	Herwig::VectorMeson2FermionDecayer
	The VectorMeson2FermionDecayer class is designed for the decay of a vector meson to a fermion-antifermion pair. More...
class	Herwig::VectorMeson2MesonDecayer
	This class is the implementation for the decay of a vector meson to two scalar mesons, the classic example is \(\rho -> \pi\pi\), via a current which is the difference of the momenta of the mesons. More...
class	Herwig::VectorMeson2SpinHalfBaryonsDecayer
	The VectorMeson2SpinHalfBaryonsDecayer class is designed for the decay of a vector meson to a baryon-antibaryon pair. More...
class	Herwig::VectorMeson2SpinThreeHalfBaryonsDecayer
	The VectorMeson2SpinThreeHalfBaryonsDecayer class is designed for the decay of a vector meson to a baryon-antibaryon pair. More...
class	Herwig::VectorMesonPScalarFermionsDecayer
	The VectorMesonPScalarFermionsDecayer class is designed to perform the decay of a vector meson to a pesudo scalar and a fermion-antifermion pair according to a current which is the \(V\to VP\) vertex combined with the branching of the vector into a fermion-antifermion pair. More...
class	Herwig::VectorMesonTensorVectorDecayer
	The VectorMesonTensorVectorDecayer class is designed to simulate the decay of a vector meson to a tensor meson and a spin-1 particle. More...
class	Herwig::VectorMesonVectorPScalarDecayer
	This class is designed for the decay of a vector meson to another spin-1 particle, either another vector meson or a photon, and a pseduoscalar meson. More...
class	Herwig::VectorMesonVectorScalarDecayer
	This class is designed for the decay of a vector meson to a spin-1 particle, either a vector meson or a photon, and a scalar meson. More...
class	Herwig::VectorMesonVectorVectorDecayer
	This class is designed for the decay of a vector meson to two spin one particles, either other vector mesons or photons. More...
class	Herwig::EtaPiPiDefaultCurrent
	The EtaPiPiDefaultCurrent class implements the current from Z.Phys.C58:445 (1992), for \( \pi^- \pi^0 \eta \). More...
class	Herwig::FourPionCzyzCurrent
	The FourMesonCzyzCurrent class implements the currents from Phys.Rev. More...
class	Herwig::FourPionNovosibirskCurrent
	The FourPionNovosibirskCurrent class implements the decay of the weak current to 4 pions using the hadronic currents of Comput. More...
class	Herwig::KPiKStarCurrent
	Weak current for the production of two mesons via the \(\rho\) or \(K^*\) resonances. More...
class	Herwig::LeptonNeutrinoCurrent
	This class implements the weak decay current for a lepton and a neutrino. More...
class	Herwig::OneKaonTwoPionCurrent
	The OneKaonTwoPionCurrent class implements the model of M. More...
class	Herwig::OneKaonTwoPionDefaultCurrent
	The OneKaonTwoPionDefaultCurrent class implements the currents from Z.Phys.C58:445 (1992), this paper uses the form from Z.Phys.C48:445 (1990) for the \(a_1\) width and is the default model in TAUOLA. More...
class	Herwig::ScalarMesonCurrent
	The weak current for the production of one (pseudo)-scalar meson. More...
class	Herwig::ThreeMesonCurrentBase
	This is the base class for the three meson decays of the weak current. More...
class	Herwig::ThreePionCLEOCurrent
	The ThreePionCLEOCurrent class implements the decay of the weak current to three pions using the currents from CLEO Phys. More...
class	Herwig::ThreePionCzyzCurrent
	The ThreeMesonCzyzCurrent class implements the currents from Eur.Phys.J. More...
class	Herwig::ThreePionDefaultCurrent
	The ThreePionDefaultCurrent class implements the currents from Z.Phys.C58:445 (1992), this paper uses the form from Z.Phys.C48:445 (1990) for the \(a_1\) width and is the default model in TAUOLA. More...
class	Herwig::TwoKaonOnePionCurrent
	The TwoKaonOnePionCurrent class implements the model of M. More...
class	Herwig::TwoKaonOnePionDefaultCurrent
	The TwoKaonOnePionDefaultCurrent class implements the currents from Z.Phys.C58:445 (1992), this paper uses the form from Z.Phys.C48:445 (1990) for the \(a_1\) width and is the default model in TAUOLA. More...
class	Herwig::TwoPionPhotonCurrent
	This class implements the decay current for \(\pi^\pm\pi^0 \gamma\) via an intermediate \(\omega\). More...
class	Herwig::TwoPionRhoCurrent
	Weak current for the production of two mesons via the \(\rho\) resonances. More...
class	Herwig::VectorMesonCurrent
	The weak current for the production of one (pseudo)-vector meson. More...
class	Herwig::WeakCurrent
	The WeakCurrent class is the base class for the hadronic currents produced in weak decays. More...
class	Herwig::DecayIntegrator
	Main class for Decayers implementing multi-channel phase space integration. More...

Detailed Description

These classes perform the decays.