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SSCFSVertex.h
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// -*- C++ -*-
//
// SSCFSVertex.h is a part of Herwig - A multi-purpose Monte Carlo event generator
// Copyright (C) 2002-2017 The Herwig Collaboration
//
// Herwig is licenced under version 3 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
#ifndef HERWIG_SSCFSVertex_H
#define HERWIG_SSCFSVertex_H
//
// This is the declaration of the SSCFSVertex class.
//
#include "ThePEG/Helicity/Vertex/Scalar/FFSVertex.h"
#include "MSSM.h"
namespace Herwig {
using namespace ThePEG;
/**
* This is the implementation of the coupling of the charginos to fermion-
* sfermions. It inherits from FFSVertex and implements the virtual
* setCoupling member
*
* @see FFSVertex
*/
class SSCFSVertex: public FFSVertex {
public:
/**
* The default constructor.
*/
SSCFSVertex();
public:
/** @name Functions used by the persistent I/O system. */
//@{
/**
* Function used to write out object persistently.
* @param os the persistent output stream written to.
*/
void persistentOutput(PersistentOStream & os) const;
/**
* Function used to read in object persistently.
* @param is the persistent input stream read from.
* @param version the version number of the object when written.
*/
void persistentInput(PersistentIStream & is, int version);
//@}
/**
* 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 assignment operator is private and must never be called.
* In fact, it should not even be implemented.
*/
SSCFSVertex & operator=(const SSCFSVertex &) = delete;
/**
* Pointer to the MSSM object
*/
tMSSMPtr _theSS;
/**
* \f$\sin(\beta)\f$
*/
double _sb;
/**
* \f$\cos(\beta)\f$
*/
double _cb;
/**
* Mass of the W
*/
Energy _mw;
/**
* Pointer to stop mixing matrix
*/
tMixingMatrixPtr _stop;
/**
* Pointer to sbottom mixing matrix
*/
tMixingMatrixPtr _sbot;
/**
* Pointer to stau mixing matrix
*/
tMixingMatrixPtr _stau;
/**
* Pointer to U chargino mixing matrix
*/
tMixingMatrixPtr _umix;
/**
* Pointer to V chargino mixing matrix
*/
tMixingMatrixPtr _vmix;
/**
* The energy scale at which the coupling
* was last evaluated
*/
Energy2 _q2last;
/**
* The value of the coupling at the scale last evaluated
*/
Complex _couplast;
/**
* The value of the left coupling when last evaluated
*/
Complex _leftlast;
/**
* The value of the right coupling when last evaluated
*/
Complex _rightlast;
/**
* Id of the last sm fermion that the coupling was evaluated for
*/
long _id1last;
/**
* Id of the last scalar that the coupling was evaluated for
*/
long _id2last;
/**
* Id of the last chargino that the coupling was evaluated for
*/
long _id3last;
/**
* Include Yukawa's ?
*/
unsigned int yukawa_;
};
}
#endif /* HERWIG_SSCFSVertex_H */

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