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Herwig++  2.7.0
Herwig::SMWFermionsPOWHEGDecayer Class Reference

Here is the documentation of the SMWFermionsPOWHEGDecayer class. More...

#include <SMWFermionsPOWHEGDecayer.h>

Inheritance diagram for Herwig::SMWFermionsPOWHEGDecayer:

List of all members.

Public Member Functions

 SMWFermionsPOWHEGDecayer ()
 The default constructor.
virtual double me2 (const int ichan, const Particle &part, const ParticleVector &decay, MEOption meopt) const
 Return the matrix element squared for a given mode and phase-space channel.
virtual POWHEGType hasPOWHEGCorrection ()
 Virtual members to be overridden by inheriting classes which implement hard corrections.
virtual HardTreePtr generateHardest (ShowerTreePtr)
 Apply the POWHEG style correction.
Functions used by the persistent I/O system.
void persistentOutput (PersistentOStream &os) const
 Function used to write out object persistently.
void persistentInput (PersistentIStream &is, int version)
 Function used to read in object persistently.

Static Public Member Functions

static void Init ()
 The standard Init function used to initialize the interfaces.

Protected Member Functions

Clone Methods.
virtual IBPtr clone () const
 Make a simple clone of this object.
virtual IBPtr fullclone () const
 Make a clone of this object, possibly modifying the cloned object to make it sane.
Standard Interfaced functions.
virtual void doinit ()
 Initialize this object after the setup phase before saving an EventGenerator to disk.

Private Member Functions

SMWFermionsPOWHEGDecayeroperator= (const SMWFermionsPOWHEGDecayer &)
 The assignment operator is private and must never be called.
AbstractFFVVertexPtr FFWVertex () const
 Pointer to the fermion-antifermion W vertex.
AbstractFFVVertexPtr FFGVertex () const
 Pointer to the fermion-antifermion G vertex.
double calculateRealEmission (double x1, double x2, vector< PPtr > hardProcess, double phi, double muj, double muk, int iemit, bool subtract) const
 Real emission term, for use in generating the hardest emission.
bool checkZMomenta (double x1, double x2, double x3, double y, Energy pT, double muj, double muk) const
 Check the sign of the momentum in the $z$-direction is correct.
InvEnergy calculateJacobian (double x1, double x2, Energy pT, double muj, double muk) const
 Calculate the Jacobian.
double meRatio (vector< cPDPtr > partons, vector< Lorentz5Momentum > momenta, unsigned int iemitter, bool subtract) const
 Calculate the ratio between NLO & LO ME.
double loME (const vector< cPDPtr > &partons, const vector< Lorentz5Momentum > &momenta) const
 Calculate the LO ME.
InvEnergy2 realME (const vector< cPDPtr > &partons, const vector< Lorentz5Momentum > &momenta) const
 Calculate the NLO real emission piece of ME.
bool getEvent (vector< PPtr > hardProcess)
 Generate a real emission event.

Private Attributes

AbstractFFVVertexPtr FFWVertex_
 Pointer to the fermion-antifermion W vertex.
AbstractFFVVertexPtr FFGVertex_
 Pointer to the fermion-antifermion G vertex.
double CF_
 The colour factor.
Energy mW_
 The W mass.
double mu_
double mu1_
 The reduced mass of particle 1.
double mu12_
 The reduced mass of particle 1 squared.
double mu2_
 The reduceed mass of particle 2.
double mu22_
 The reduceed mass of particle 2 squared.
double aS_
 The strong coupling.
Energy2 scale_
 The scale.
tcPDPtr gluon_
 Stuff for the POWHEG correction.
Energy pTmin_
 The cut off on pt, assuming massless quarks.
Energy pT_
vector< tcPDPtrpartons_
 The ParticleData objects for the fermions.
vector< Lorentz5Momentum > quark_
 The fermion momenta.
Lorentz5Momentum gauge_
 The momentum of the radiated gauge boson.
PPtr wboson_
 The W boson.
Energy2 mw2_
 W mass squared.

Static Private Attributes

static ClassDescription
< SMWFermionsPOWHEGDecayer
initSMWFermionsPOWHEGDecayer
 The static object used to initialize the description of this class.

Detailed Description

Here is the documentation of the SMWFermionsPOWHEGDecayer class.

See also:
The interfaces defined for SMWFermionsPOWHEGDecayer.

Definition at line 21 of file SMWFermionsPOWHEGDecayer.h.


Member Function Documentation

virtual IBPtr Herwig::SMWFermionsPOWHEGDecayer::clone ( ) const [protected, virtual]

Make a simple clone of this object.

Returns:
a pointer to the new object.

Reimplemented from Herwig::SMWDecayer.

virtual void Herwig::SMWFermionsPOWHEGDecayer::doinit ( ) [protected, virtual]

Initialize this object after the setup phase before saving an EventGenerator to disk.

Exceptions:
InitExceptionif object could not be initialized properly.

Reimplemented from Herwig::SMWDecayer.

virtual IBPtr Herwig::SMWFermionsPOWHEGDecayer::fullclone ( ) const [protected, virtual]

Make a clone of this object, possibly modifying the cloned object to make it sane.

Returns:
a pointer to the new object.

Reimplemented from Herwig::SMWDecayer.

Virtual members to be overridden by inheriting classes which implement hard corrections.

Has a POWHEG style correction

Reimplemented from Herwig::HwDecayerBase.

Definition at line 38 of file SMWFermionsPOWHEGDecayer.h.

static void Herwig::SMWFermionsPOWHEGDecayer::Init ( ) [static]

The standard Init function used to initialize the interfaces.

Called exactly once for each class by the class description system before the main function starts or when this class is dynamically loaded.

Reimplemented from Herwig::SMWDecayer.

virtual double Herwig::SMWFermionsPOWHEGDecayer::me2 ( const int  ichan,
const Particle part,
const ParticleVector decay,
MEOption  meopt 
) const [virtual]

Return the matrix element squared for a given mode and phase-space channel.

Parameters:
ichanThe channel we are calculating the matrix element for.
partThe decaying Particle.
decayThe particles produced in the decay.
meoptOption for the calculation of the matrix element
Returns:
The matrix element squared for the phase-space configuration.

Reimplemented from Herwig::SMWDecayer.

SMWFermionsPOWHEGDecayer& Herwig::SMWFermionsPOWHEGDecayer::operator= ( const SMWFermionsPOWHEGDecayer ) [private]

The assignment operator is private and must never be called.

In fact, it should not even be implemented.

Function used to read in object persistently.

Parameters:
isthe persistent input stream read from.
versionthe version number of the object when written.

Reimplemented from Herwig::SMWDecayer.

Function used to write out object persistently.

Parameters:
osthe persistent output stream written to.

Reimplemented from Herwig::SMWDecayer.


Member Data Documentation

Stuff for the POWHEG correction.

ParticleData object for the gluon

Definition at line 235 of file SMWFermionsPOWHEGDecayer.h.

The static object used to initialize the description of this class.

Indicates that this is a concrete class with persistent data.

Definition at line 111 of file SMWFermionsPOWHEGDecayer.h.


The documentation for this class was generated from the following file: