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SSGSGSGVertex.h
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SSGSGSGVertex.h
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// -*- C++ -*-
//
// SSGSGSGVertex.h is a part of Herwig++ - A multi-purpose Monte Carlo event generator
// Copyright (C) 2002-2007 The Herwig Collaboration
//
// Herwig++ is licenced under version 2 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
#ifndef HERWIG_SSGSGSGVertex_H
#define HERWIG_SSGSGSGVertex_H
//
// This is the declaration of the SSGSGSGVertex class.
//
#include "ThePEG/Helicity/Vertex/Vector/FFVVertex.h"
#include "SusyBase.h"
namespace Herwig {
using namespace ThePEG;
/**
* This class implements the g-\f$\tilde{g}\f$-\f$\tilde{g}\f$ vertex. It
* inherits from FFVVertex and implements the setCoupling virtual method.
*
* @see FFVVertex
*/
class SSGSGSGVertex: public FFVVertex {
public:
/**
* The default constructor.
*/
SSGSGSGVertex();
/**
* The standard Init function used to initialize the interfaces.
* Called exactly once for each class by the class description system
* before the main function starts or
* when this class is dynamically loaded.
*/
static void Init();
/**
* Calculate the couplings.
* @param q2 The scale \f$q^2\f$ for the coupling at the vertex.
* @param part1 The ParticleData pointer for the first particle.
* @param part2 The ParticleData pointer for the second particle.
* @param part3 The ParticleData pointer for the third particle.
*/
virtual void setCoupling(Energy2 q2,tcPDPtr part1,
tcPDPtr part2,tcPDPtr part3);
protected:
/** @name Clone Methods. */
//@{
/**
* Make a simple clone of this object.
* @return a pointer to the new object.
*/
virtual IBPtr clone() const {return new_ptr(*this);}
/** Make a clone of this object, possibly modifying the cloned object
* to make it sane.
* @return a pointer to the new object.
*/
virtual IBPtr fullclone() const {return new_ptr(*this);}
//@}
protected:
/** @name Standard Interfaced functions. */
//@{
/**
* Initialize this object after the setup phase before saving an
* EventGenerator to disk.
* @throws InitException if object could not be initialized properly.
*/
virtual void doinit();
//@}
private:
/**
* The static object used to initialize the description of this class.
* Indicates that this is a concrete class with persistent data.
*/
static NoPIOClassDescription<SSGSGSGVertex> initSSGSGSGVertex;
/**
* The assignment operator is private and must never be called.
* In fact, it should not even be implemented.
*/
SSGSGSGVertex & operator=(const SSGSGSGVertex &);
private:
/**
* The value of the coupling when last evaluated
*/
Complex _couplast;
/**
* The scale at which the coupling was last evaluated
*/
Energy2 _q2last;
};
}
#include "ThePEG/Utilities/ClassTraits.h"
namespace ThePEG {
/** @cond TRAITSPECIALIZATIONS */
/** This template specialization informs ThePEG about the
* base classes of SSGSGSGVertex. */
template <>
struct BaseClassTrait<Herwig::SSGSGSGVertex,1> {
/** Typedef of the first base class of SSGSGSGVertex. */
typedef ThePEG::Helicity::FFVVertex NthBase;
};
/** This template specialization informs ThePEG about the name of
* the SSGSGSGVertex class and the shared object where it is defined. */
template <>
struct ClassTraits<Herwig::SSGSGSGVertex>
: public ClassTraitsBase<Herwig::SSGSGSGVertex> {
/** Return a platform-independent class name */
static string className() { return "Herwig::SSGSGSGVertex"; }
/**
* The name of a file containing the dynamic library where the class
* SSGSGSGVertex is implemented. It may also include several, space-separated,
* libraries if the class SSGSGSGVertex depends on other classes (base classes
* excepted). In this case the listed libraries will be dynamically
* linked in the order they are specified.
*/
static string library() { return "HwSusy.so"; }
};
/** @endcond */
}
#endif /* HERWIG_SSGSGSGVertex_H */

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