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Herwig
7.2.1
MatrixElement
Hadron
MEqq2W2ff.h
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// -*- C++ -*-
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//
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// MEqq2W2ff.h is a part of Herwig - A multi-purpose Monte Carlo event generator
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// Copyright (C) 2002-2019 The Herwig Collaboration
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//
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// Herwig is licenced under version 3 of the GPL, see COPYING for details.
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// Please respect the MCnet academic guidelines, see GUIDELINES for details.
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//
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#ifndef HERWIG_MEqq2W2ff_H
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#define HERWIG_MEqq2W2ff_H
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//
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// This is the declaration of the MEqq2W2ff class.
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//
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#include "Herwig/MatrixElement/DrellYanBase.h"
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#include "Herwig/MatrixElement/ProductionMatrixElement.h"
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#include "ThePEG/Helicity/WaveFunction/SpinorWaveFunction.h"
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#include "ThePEG/Helicity/WaveFunction/SpinorBarWaveFunction.h"
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#include "ThePEG/Helicity/Vertex/AbstractFFVVertex.fh"
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namespace
Herwig
{
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using namespace
ThePEG
;
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using namespace
ThePEG::Helicity
;
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class
MEqq2W2ff
:
public
DrellYanBase
{
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public
:
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MEqq2W2ff
();
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virtual
unsigned
int
orderInAlphaS()
const
;
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virtual
unsigned
int
orderInAlphaEW()
const
;
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virtual
double
me2()
const
;
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virtual
Energy2 scale()
const
;
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virtual
void
getDiagrams()
const
;
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virtual
Selector<DiagramIndex>
diagrams(
const
DiagramVector
& dv)
const
;
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virtual
Selector<const ColourLines *>
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colourGeometries(tcDiagPtr diag)
const
;
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virtual
void
constructVertex(
tSubProPtr
);
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public
:
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void
persistentOutput(
PersistentOStream
& os)
const
;
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void
persistentInput(
PersistentIStream
& is,
int
version);
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static
void
Init();
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protected
:
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double
qqbarME(vector<SpinorWaveFunction> & fin ,
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vector<SpinorBarWaveFunction> & ain ,
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vector<SpinorBarWaveFunction> & fout,
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vector<SpinorWaveFunction> & aout,
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bool
me)
const
;
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protected
:
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virtual
IBPtr
clone
()
const
{
return
new_ptr(*
this
); }
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virtual
IBPtr
fullclone
()
const
{
return
new_ptr(*
this
); }
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protected
:
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virtual
void
doinit();
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private
:
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MEqq2W2ff
& operator=(
const
MEqq2W2ff
&) =
delete
;
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private
:
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AbstractFFVVertexPtr
_theFFWVertex
;
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tcPDPtr
_wp
;
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tcPDPtr
_wm
;
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unsigned
int
_maxflavour
;
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unsigned
int
_plusminus
;
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unsigned
int
_process
;
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ProductionMatrixElement
_me
;
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};
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}
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#endif
/* HERWIG_MEqq2W2ff_H */
ThePEG::PersistentIStream
ThePEG::Helicity
Herwig::MEqq2W2ff::_me
ProductionMatrixElement _me
Matrix element for spin correlations.
Definition:
MEqq2W2ff.h:226
ThePEG::PersistentOStream
Herwig::MEqq2W2ff::fullclone
virtual IBPtr fullclone() const
Make a clone of this object, possibly modifying the cloned object to make it sane.
Definition:
MEqq2W2ff.h:158
Herwig::MEqq2W2ff::_process
unsigned int _process
Which decay products of the to include.
Definition:
MEqq2W2ff.h:220
Herwig::DrellYanBase
The DrellYanBase class class provides a base class for the implemented of Drell-Yan type processes an...
Definition:
DrellYanBase.h:23
ThePEG::IBPtr
ThePEG::Ptr< InterfacedBase >::pointer IBPtr
ThePEG
Herwig::ProductionMatrixElement
The storage of the helicity amplitude expression for the matrix element of a hard process...
Definition:
ProductionMatrixElement.h:34
Herwig::MEqq2W2ff::_wm
tcPDPtr _wm
Pointer to the .
Definition:
MEqq2W2ff.h:200
ThePEG::tcPDPtr
ThePEG::Ptr< ParticleData >::transient_const_pointer tcPDPtr
Herwig::MEqq2W2ff::_maxflavour
unsigned int _maxflavour
Switches to control the particles in the hard process.
Definition:
MEqq2W2ff.h:210
ThePEG::tSubProPtr
ThePEG::Ptr< SubProcess >::transient_pointer tSubProPtr
Herwig::MEqq2W2ff::_wp
tcPDPtr _wp
Pointers to the intermediates resonances.
Definition:
MEqq2W2ff.h:195
ThePEG::Selector
ThePEG::MEBase::DiagramVector
vector< DiagPtr > DiagramVector
Herwig::MEqq2W2ff::clone
virtual IBPtr clone() const
Make a simple clone of this object.
Definition:
MEqq2W2ff.h:152
Herwig
-*- C++ -*-
Definition:
BasicConsistency.h:17
Herwig::MEqq2W2ff::_theFFWVertex
AbstractFFVVertexPtr _theFFWVertex
Pointer to the W vertex.
Definition:
MEqq2W2ff.h:186
Herwig::MEqq2W2ff
The MEqq2W2ff class implements the matrix element for including the decay of the to Standard Model ...
Definition:
MEqq2W2ff.h:33
Herwig::MEqq2W2ff::_plusminus
unsigned int _plusminus
Which intermediate bosons to include.
Definition:
MEqq2W2ff.h:215
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