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Herwig
7.2.1
MatrixElement
Matchbox
ColorFull
TraceBasis.h
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// -*- C++ -*-
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//
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// TraceBasis.h is a part of ColorFull
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// Copyright (C) 2010-2011 Simon Platzer & Malin Sjodahl
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//
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// ColorFull 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 COLORFULL_TraceBasis_H
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#define COLORFULL_TraceBasis_H
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//
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// This is the declaration of the TraceBasis class.
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//
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#include "Herwig/MatrixElement/Matchbox/Utility/ColourBasis.h"
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#include "Trace_basis.h"
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namespace
ColorFull
{
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using namespace
ThePEG
;
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using namespace
Herwig
;
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class
TraceBasis
:
public
Herwig::ColourBasis
{
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public
:
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TraceBasis
();
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virtual
~
TraceBasis
();
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public
:
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virtual
void
clear();
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virtual
map<size_t,vector<vector<size_t> > > basisList(
const
vector<PDT::Colour>&)
const
;
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virtual
size_t
prepareBasis(
const
vector<PDT::Colour>&);
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virtual
void
readBasisDetails(
const
vector<PDT::Colour>&);
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virtual
double
scalarProduct(
size_t
a,
size_t
b,
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const
vector<PDT::Colour>& abBasis)
const
;
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virtual
bool
canSplitGluons
()
const
{
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return
false
;
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}
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virtual
double
tMatrixElement(
size_t
i,
size_t
a,
size_t
b,
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const
vector<PDT::Colour>& aBasis,
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const
vector<PDT::Colour>& bBasis,
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size_t
k,
size_t
l,
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const
map<size_t,size_t>& dict)
const
;
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virtual
double
sMatrixElement(
size_t
i,
size_t
a,
size_t
b,
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const
vector<PDT::Colour>& aBasis,
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const
vector<PDT::Colour>& bBasis,
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size_t
k,
size_t
l,
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const
map<size_t,size_t>& dict)
const
;
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virtual
bool
haveColourFlows
()
const
{
return
true
; }
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virtual
bool
colourConnected(
const
cPDVector
&,
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const
vector<PDT::Colour>&,
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const
pair<int,bool>&,
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const
pair<int,bool>&,
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size_t
)
const
;
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virtual
map<size_t,size_t> indexChange(
const
vector<PDT::Colour>& basis,
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const
size_t
dim,
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const
map<size_t,size_t>& legPerm)
const
;
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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
;
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virtual
IBPtr
fullclone()
const
;
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// If needed, insert declarations of virtual function defined in the
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// InterfacedBase class here (using ThePEG-interfaced-decl in Emacs).
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private
:
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mutable
Col_functions
colorFunctions
;
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mutable
map<vector<PDT::Colour>,
Trace_basis
>
theBasisMap
;
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mutable
map<string,Polynomial>
theScalarProducts
;
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private
:
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TraceBasis
& operator=(
const
TraceBasis
&) =
delete
;
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};
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}
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#endif
/* COLORFULL_TraceBasis_H */
ColorFull
Definition:
Col_amp.h:15
ColorFull::TraceBasis::theBasisMap
map< vector< PDT::Colour >, Trace_basis > theBasisMap
Map legs to known basis vectors.
Definition:
TraceBasis.h:196
ThePEG::PersistentIStream
ColorFull::TraceBasis
TraceBasis implements the trace colour basis.
Definition:
TraceBasis.h:29
ThePEG::PersistentOStream
ColorFull::Col_functions
Library class containing functions for index contraction and numerical evaluation.
Definition:
Col_functions.h:25
ColorFull::TraceBasis::canSplitGluons
virtual bool canSplitGluons() const
Return true, if this colour basis supports gluon splittings.
Definition:
TraceBasis.h:81
ThePEG::IBPtr
ThePEG::Ptr< InterfacedBase >::pointer IBPtr
ThePEG
ColorFull::TraceBasis::colorFunctions
Col_functions colorFunctions
The color functions object to be used.
Definition:
TraceBasis.h:191
ColorFull::Trace_basis
In a trace basis the basis vectors are closed or open quark-lines or products of close and open quark...
Definition:
Trace_basis.h:19
ThePEG::cPDVector
vector< cPDPtr > cPDVector
ColorFull::TraceBasis::haveColourFlows
virtual bool haveColourFlows() const
Return true, if the colour basis is capable of assigning colour flows.
Definition:
TraceBasis.h:118
ColorFull::TraceBasis::theScalarProducts
map< string, Polynomial > theScalarProducts
Memorize scalar product intermediate results.
Definition:
TraceBasis.h:201
Herwig
-*- C++ -*-
Definition:
BasicConsistency.h:17
Herwig::ColourBasis
ColourBasis is an interface to a colour basis implementation.
Definition:
ColourBasis.h:46
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