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Herwig
7.2.1
MatrixElement
Hadron
MEPP2GammaJet.h
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// -*- C++ -*-
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//
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// MEPP2GammaJet.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_MEPP2GammaJet_H
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#define HERWIG_MEPP2GammaJet_H
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//
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// This is the declaration of the MEPP2GammaJet class.
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//
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#include "Herwig/MatrixElement/HwMEBase.h"
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#include "ThePEG/Helicity/Vertex/AbstractFFVVertex.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/VectorWaveFunction.h"
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#include "ThePEG/Helicity/WaveFunction/SpinorBarWaveFunction.h"
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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
MEPP2GammaJet
:
public
HwMEBase
{
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public
:
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MEPP2GammaJet
();
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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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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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virtual
void
rebind(
const
TranslationMap
& trans)
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;
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virtual
IVector
getReferences();
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private
:
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double
qqbarME(vector<SpinorWaveFunction> & fin, vector<SpinorBarWaveFunction> & ain,
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vector<VectorWaveFunction> & gout, vector<VectorWaveFunction> & pout,
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bool
me)
const
;
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double
qgME(vector<SpinorWaveFunction> & fin,vector<VectorWaveFunction> & gin,
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vector<VectorWaveFunction> & pout,vector<SpinorBarWaveFunction> & fout,
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bool
me)
const
;
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double
qbargME(vector<SpinorBarWaveFunction> & ain, vector<VectorWaveFunction> & gin,
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vector<VectorWaveFunction> & pout, vector<SpinorWaveFunction> & aout,
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bool
me)
const
;
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private
:
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MEPP2GammaJet
& operator=(
const
MEPP2GammaJet
&) =
delete
;
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private
:
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AbstractFFVVertexPtr
_gluonvertex
;
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AbstractFFVVertexPtr
_photonvertex
;
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int
_maxflavour
;
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unsigned
int
_processopt
;
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ProductionMatrixElement
_me
;
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double
scalePreFactor_
;
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};
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}
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#endif
/* HERWIG_MEPP2GammaJet_H */
ThePEG::PersistentIStream
ThePEG::Helicity
Herwig::MEPP2GammaJet::_gluonvertex
AbstractFFVVertexPtr _gluonvertex
Pointer to the quark-antiquark-gluon vertex.
Definition:
MEPP2GammaJet.h:233
Herwig::MEPP2GammaJet::fullclone
virtual IBPtr fullclone() const
Make a clone of this object, possibly modifying the cloned object to make it sane.
Definition:
MEPP2GammaJet.h:143
ThePEG::PersistentOStream
ThePEG::IBPtr
ThePEG::Ptr< InterfacedBase >::pointer IBPtr
Herwig::MEPP2GammaJet::_processopt
unsigned int _processopt
Option for which processes to include.
Definition:
MEPP2GammaJet.h:248
ThePEG::Rebinder
ThePEG
Herwig::MEPP2GammaJet::clone
virtual IBPtr clone() const
Make a simple clone of this object.
Definition:
MEPP2GammaJet.h:137
Herwig::MEPP2GammaJet::_maxflavour
int _maxflavour
Maximum PDG code of the quarks allowed.
Definition:
MEPP2GammaJet.h:243
Herwig::ProductionMatrixElement
The storage of the helicity amplitude expression for the matrix element of a hard process...
Definition:
ProductionMatrixElement.h:34
Herwig::MEPP2GammaJet::_me
ProductionMatrixElement _me
Matrix element for spin correlations.
Definition:
MEPP2GammaJet.h:253
ThePEG::tSubProPtr
ThePEG::Ptr< SubProcess >::transient_pointer tSubProPtr
ThePEG::Selector
ThePEG::MEBase::DiagramVector
vector< DiagPtr > DiagramVector
Herwig
-*- C++ -*-
Definition:
BasicConsistency.h:17
Herwig::HwMEBase
The HwMEBase class serves a number of purposes.
Definition:
HwMEBase.h:35
ThePEG::IVector
vector< IBPtr > IVector
Herwig::MEPP2GammaJet::scalePreFactor_
double scalePreFactor_
Scale prefactor.
Definition:
MEPP2GammaJet.h:258
Herwig::MEPP2GammaJet
The MEPP2GammaJet class implements the matrix element for photon+jet production in hadron-hadron coll...
Definition:
MEPP2GammaJet.h:34
Herwig::MEPP2GammaJet::_photonvertex
AbstractFFVVertexPtr _photonvertex
Pointer to the quark-antiquark-photon vertex.
Definition:
MEPP2GammaJet.h:238
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