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Herwig++  2.7.0
Herwig::SMHiggsFermionsPOWHEGDecayer Class Reference

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

#include <SMHiggsFermionsPOWHEGDecayer.h>

Inheritance diagram for Herwig::SMHiggsFermionsPOWHEGDecayer:

List of all members.

Public Member Functions

 SMHiggsFermionsPOWHEGDecayer ()
 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

SMHiggsFermionsPOWHEGDecayeroperator= (const SMHiggsFermionsPOWHEGDecayer &)
 The assignment operator is private and must never be called.
double calculateLambda (double x, double y, double z) const
 Calcluate the Kallen function.
InvEnergy2 dipoleSubtractionTerm (double x1, double x2) const
 Dipole subtraction term.
InvEnergy2 calculateRealEmission (double x1, double x2) const
 Real emission term.
double calculateVirtualTerm () const
 Virtual term.
double calculateNonSingletTerm (double beta, double L) const
 Non-singlet term.
bool checkZMomenta (double x1, double x2, double x3, double y, Energy pT) const
 Check the sign of the momentum in the $z$-direction is correct.
InvEnergy calculateJacobian (double x1, double x2, Energy pT) const
 Calculate the Jacobian.
bool getEvent ()
 Generate a real emission event.

Private Attributes

double CF_
 The colour factor.
Energy mHiggs_
 The Higgs mass.
double mu_
 The reduced mass.
double mu2_
 The square of the reduced mass.
double aS_
 The strong coupling.
ShowerAlphaPtr alphaS_
 Stuff ofr the POWHEG correction.
tcPDPtr gluon_
 ParticleData object for the gluon.
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 higgs_
 The Higgs boson.
Energy2 mh2_
 Higgs mass squared.

Static Private Attributes

static ClassDescription
< SMHiggsFermionsPOWHEGDecayer
initSMHiggsFermionsPOWHEGDecayer
 The static object used to initialize the description of this class.

Detailed Description

Here is the documentation of the SMHiggsFermionsPOWHEGDecayer class.

See also:
The interfaces defined for SMHiggsFermionsPOWHEGDecayer.

Definition at line 22 of file SMHiggsFermionsPOWHEGDecayer.h.


Member Function Documentation

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

Make a simple clone of this object.

Returns:
a pointer to the new object.

Reimplemented from Herwig::SMHiggsFermionsDecayer.

virtual void Herwig::SMHiggsFermionsPOWHEGDecayer::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::SMHiggsFermionsDecayer.

virtual IBPtr Herwig::SMHiggsFermionsPOWHEGDecayer::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::SMHiggsFermionsDecayer.

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

Has a POWHEG style correction

Reimplemented from Herwig::HwDecayerBase.

Definition at line 39 of file SMHiggsFermionsPOWHEGDecayer.h.

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::SMHiggsFermionsDecayer.

virtual double Herwig::SMHiggsFermionsPOWHEGDecayer::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::SMHiggsFermionsDecayer.

SMHiggsFermionsPOWHEGDecayer& Herwig::SMHiggsFermionsPOWHEGDecayer::operator= ( const SMHiggsFermionsPOWHEGDecayer ) [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::SMHiggsFermionsDecayer.

Function used to write out object persistently.

Parameters:
osthe persistent output stream written to.

Reimplemented from Herwig::SMHiggsFermionsDecayer.


Member Data Documentation

Stuff ofr the POWHEG correction.

Pointer to the object calculating the strong coupling

Definition at line 193 of file SMHiggsFermionsPOWHEGDecayer.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 SMHiggsFermionsPOWHEGDecayer.h.


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