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Herwig
7.2.1
Shower
ShowerAlpha.h
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// -*- C++ -*-
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//
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// ShowerAlpha.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_ShowerAlpha_H
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#define HERWIG_ShowerAlpha_H
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//
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// This is the declaration of the ShowerAlpha class.
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//
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#include "ThePEG/Interface/Interfaced.h"
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#include "ShowerAlpha.fh"
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namespace
Herwig
{
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using namespace
ThePEG
;
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class
ShowerAlpha
:
public
Interfaced
{
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public
:
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ShowerAlpha
() : _scaleFactor( 1.0 ) {}
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public
:
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virtual
double
value(
const
Energy2 scale)
const
= 0;
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virtual
double
overestimateValue()
const
= 0;
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virtual
double
ratio(
const
Energy2 scale,
double
factor=1.)
const
= 0;
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double
scaleFactor
()
const
{
return
_scaleFactor;}
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virtual
void
initialize
() {}
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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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private
:
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ShowerAlpha
& operator=(
const
ShowerAlpha
&) =
delete
;
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private
:
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double
_scaleFactor
;
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};
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}
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#endif
/* HERWIG_ShowerAlpha_H */
ThePEG::PersistentIStream
ThePEG::PersistentOStream
ThePEG
Herwig::ShowerAlpha::scaleFactor
double scaleFactor() const
It returns the factor that multiplies the scale argument, , of the running coupling.
Definition:
ShowerAlpha.h:97
Herwig::ShowerAlpha::initialize
virtual void initialize()
Initialize this coupling.
Definition:
ShowerAlpha.h:102
ThePEG::Interfaced
Herwig::ShowerAlpha
This class is the abstract class from which all types of running couplings used in the Showering deri...
Definition:
ShowerAlpha.h:49
Herwig
-*- C++ -*-
Definition:
BasicConsistency.h:17
Herwig::ShowerAlpha::ShowerAlpha
ShowerAlpha()
The default constructor.
Definition:
ShowerAlpha.h:58
Herwig::ShowerAlpha::_scaleFactor
double _scaleFactor
The scale factor.
Definition:
ShowerAlpha.h:144
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