Models/Susy/SSGFSVertex.h

0001 // -*- C++ -*-
0002 //
0003 // SSGFSVertex.h is a part of Herwig - A multi-purpose Monte Carlo event generator
0004 // Copyright (C) 2002-2019 The Herwig Collaboration
0005 //
0006 // Herwig is licenced under version 3 of the GPL, see COPYING for details.
0007 // Please respect the MCnet academic guidelines, see GUIDELINES for details.
0008 //
0009 #ifndef HERWIG_SSGFSVertex_H
0010 #define HERWIG_SSGFSVertex_H
0011 //
0012 // This is the declaration of the SSGFSVertex class.
0013 //
0014
0015 #include "ThePEG/Helicity/Vertex/Scalar/FFSVertex.h"
0016 #include "MSSM.h"
0017
0018 namespace Herwig {
0019 using namespace ThePEG;
0020
0021 /**
0022  * This is the implementation of the coupling of a gluino to a squark-
0023  * quark pair. It inherits from FFSVertex and implements the setCoupling
0024  * method.
0025  *
0026  * @see FFSVertex
0027  */
0028 class SSGFSVertex: public FFSVertex {
0029
0030 public:
0031
0032   /**
0033    * The default constructor.
0034    */
0035   SSGFSVertex();
0036
0037 public:
0038
0039   /** @name Functions used by the persistent I/O system. */
0040   //@{
0041   /**
0042    * Function used to write out object persistently.
0043    * @param os the persistent output stream written to.
0044    */
0045   void persistentOutput(PersistentOStream & os) const;
0046
0047   /**
0048    * Function used to read in object persistently.
0049    * @param is the persistent input stream read from.
0050    * @param version the version number of the object when written.
0051    */
0052   void persistentInput(PersistentIStream & is, int version);
0053   //@}
0054
0055   /**
0056    * The standard Init function used to initialize the interfaces.
0057    * Called exactly once for each class by the class description system
0058    * before the main function starts or
0059    * when this class is dynamically loaded.
0060    */
0061   static void Init();
0062
0063   /**
0064    * Calculate the couplings.
0065    * @param q2 The scale \f$q^2\f$ for the coupling at the vertex.
0066    * @param part1 The ParticleData pointer for the first  particle.
0067    * @param part2 The ParticleData pointer for the second particle.
0068    * @param part3 The ParticleData pointer for the third  particle.
0069    */
0070   virtual void setCoupling(Energy2 q2,tcPDPtr part1,
0071                            tcPDPtr part2,tcPDPtr part3);
0072
0073 protected:
0074
0075   /** @name Clone Methods. */
0076   //@{
0077   /**
0078    * Make a simple clone of this object.
0079    * @return a pointer to the new object.
0080    */
0081   virtual IBPtr clone() const {return new_ptr(*this);}
0082
0083   /** Make a clone of this object, possibly modifying the cloned object
0084    * to make it sane.
0085    * @return a pointer to the new object.
0086    */
0087   virtual IBPtr fullclone() const {return new_ptr(*this);}
0088   //@}
0089
0090 protected:
0091
0092   /** @name Standard Interfaced functions. */
0093   //@{
0094   /**
0095    * Initialize this object after the setup phase before saving and
0096    * EventGenerator to disk.
0097    * @throws InitException if object could not be initialized properly.
0098    */
0099   virtual void doinit();
0100   //@}
0101
0102   /**
0103    * Pointer to the stop mixing matrix
0104    */
0105   tMixingMatrixPtr _stop;
0106
0107   /**
0108    * Pointer to the _sbottom mixing matrix
0109    */
0110   tMixingMatrixPtr _sbottom;
0111
0112   /**
0113    *  Gluino Phase
0114    */
0115   Complex gluinoPhase_;
0116
0117   /**
0118    * The scale at which the coupling was last evaluated;
0119    */
0120   Energy2 _q2last;
0121
0122   /**
0123    * The value of the coupling when it was last evaluated
0124    */
0125   Complex _couplast;
0126
0127   /**
0128    * The id of the sm fermion for which the coupling was evaluated
0129    */
0130   long _id1last;
0131
0132   /**
0133    * The id of the scalar for which the coupling was evaluated
0134    */
0135   long _id2last;
0136
0137   /**
0138    * The value of the left coupling when it was last evaluated
0139    */
0140   Complex _leftlast;
0141
0142   /**
0143    * The value of the right coupling when it was last evaluated
0144    */
0145   Complex _rightlast;
0146
0147 private:
0148
0149   /**
0150    * The assignment operator is private and must never be called.
0151    * In fact, it should not even be implemented.
0152    */
0153   SSGFSVertex & operator=(const SSGFSVertex &) = delete;
0154
0155 };
0156 }
0157
0158 #endif /* HERWIG_SSGFSVertex_H */