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ThePEG
2.3.0
MatrixElement
MEQq2Qq4.h
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// -*- C++ -*-
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//
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// MEQq2Qq4.h is a part of ThePEG - Toolkit for HEP Event Generation
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// Copyright (C) 1999-2019 Leif Lonnblad
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//
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// ThePEG 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 ThePEG_MEQq2Qq_H
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#define ThePEG_MEQq2Qq_H
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// This is the declaration of the MEQq2Qq class.
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#include "ThePEG/MatrixElement/ME2to2QCD.h"
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namespace
ThePEG
{
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class
MEQq2Qq
:
public
ME2to2QCD
{
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public
:
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virtual
double
me2
()
const
;
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virtual
void
getDiagrams
()
const
;
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virtual
Selector<const ColourLines *>
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colourGeometries
(tcDiagPtr diag)
const
;
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virtual
Selector<DiagramIndex>
diagrams
(
const
DiagramVector
& dv)
const
;
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protected
:
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double
colA
()
const
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{
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return
(
sqr
(
uHat
()) +
sqr
(
sHat
()))/
sqr
(
tHat
());
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}
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public
:
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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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private
:
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static
NoPIOClassDescription<MEQq2Qq>
initMEQq2Qq
;
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MEQq2Qq
&
operator=
(
const
MEQq2Qq
&) =
delete
;
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};
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}
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namespace
ThePEG
{
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template
<>
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struct
BaseClassTrait<MEQq2Qq,1>:
public
ClassTraitsType {
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typedef
ME2to2QCD
NthBase
;
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};
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template
<>
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struct
ClassTraits<MEQq2Qq>:
public
ClassTraitsBase<MEQq2Qq> {
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static
string
className
() {
return
"ThePEG::MEQq2Qq"
; }
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static
string
library
() {
return
"MEQCD.so"
; }
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};
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}
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#endif
/* ThePEG_MEQq2Qq_H */
ThePEG::ME2to2Base::tHat
Energy2 tHat() const
Return the of the last set phase space point.
Definition:
ME2to2Base.h:109
ThePEG::ME2to2Base::uHat
Energy2 uHat() const
Return the of the last set phase space point.
Definition:
ME2to2Base.h:114
ThePEG::ME2to2QCD
The ME2to2QCD class inherits from the ME2to2Base class and can be used as a sub class for all QCD 2 ...
Definition:
ME2to2QCD.h:28
ThePEG::MEBase::DiagramVector
vector< DiagPtr > DiagramVector
A vector of pointers to DiagramBase objects.
Definition:
MEBase.h:77
ThePEG::MEBase::sHat
Energy2 sHat() const
Return the last set invariant mass squared.
Definition:
MEBase.h:375
ThePEG::MEQq2Qq
MEQq2Qq inherits from ME2to2QCD and implements the standard mmatrix element.
Definition:
MEQq2Qq4.h:25
ThePEG::MEQq2Qq::clone
virtual IBPtr clone() const
Make a simple clone of this object.
Definition:
MEQq2Qq4.h:96
ThePEG::MEQq2Qq::Init
static void Init()
Standard Init function used to initialize the interfaces.
ThePEG::MEQq2Qq::colA
double colA() const
Return the matrix element squared (without common pre-factors) for the specific colour configuration.
Definition:
MEQq2Qq4.h:75
ThePEG::MEQq2Qq::getDiagrams
virtual void getDiagrams() const
Add all possible diagrams with the add() function.
ThePEG::MEQq2Qq::me2
virtual double me2() const
The matrix element for the kinematical configuration previously provided by the last call to setKinem...
ThePEG::MEQq2Qq::fullclone
virtual IBPtr fullclone() const
Make a clone of this object, possibly modifying the cloned object to make it sane.
Definition:
MEQq2Qq4.h:102
ThePEG::MEQq2Qq::initMEQq2Qq
static NoPIOClassDescription< MEQq2Qq > initMEQq2Qq
Describe a concrete class without persistent data.
Definition:
MEQq2Qq4.h:110
ThePEG::MEQq2Qq::operator=
MEQq2Qq & operator=(const MEQq2Qq &)=delete
Private and non-existent assignment operator.
ThePEG::MEQq2Qq::colourGeometries
virtual Selector< const ColourLines * > colourGeometries(tcDiagPtr diag) const
Return a Selector with possible colour geometries for the selected diagram weighted by their relative...
ThePEG::MEQq2Qq::diagrams
virtual Selector< DiagramIndex > diagrams(const DiagramVector &dv) const
Get diagram selector.
ThePEG::NoPIOClassDescription
A concreate implementation of ClassDescriptionBase describing a concrete class without persistent dat...
Definition:
ClassDescription.h:381
ThePEG::Pointer::RCPtr
RCPtr is a reference counted (smart) pointer.
Definition:
RCPtr.h:60
ThePEG::Selector
Selector is a templated class for storing objects associated with probabilities in a way such that,...
Definition:
Selector.h:46
ThePEG::Pointer::new_ptr
Ptr< T >::pointer new_ptr()
Simple interface to the PtrTraits<Ptr>::create()
Definition:
PtrTraits.h:195
ThePEG
This is the main namespace within which all identifiers in ThePEG are declared.
Definition:
FactoryBase.h:28
ThePEG::sqr
constexpr auto sqr(const T &x) -> decltype(x *x)
The square function should really have been included in the standard C++ library.
Definition:
ThePEG.h:117
ThePEG::BaseClassTrait::NthBase
int NthBase
The type of the BaseN'th base class (int means there are no further base classes).
Definition:
ClassTraits.h:161
ThePEG::ClassTraitsBase::className
static string className()
Return the name of class T.
Definition:
ClassTraits.h:66
ThePEG::ClassTraitsBase::library
static string library()
The name of a file containing the dynamic library where the class T is implemented.
Definition:
ClassTraits.h:85
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