Models/Susy/SSFFHVertex.h

0001 // -*- C++ -*-
0002 //
0003 // SSFFHVertex.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_SSFFHVertex_H
0010 #define HERWIG_SSFFHVertex_H
0011 //
0012 // This is the declaration of the SSFFHVertex class.
0013 //
0014
0015 #include "ThePEG/Helicity/Vertex/Scalar/FFSVertex.h"
0016 #include "MSSM.h"
0017
0018 namespace Herwig {
0019
0020 /**
0021  * The is the coupling of higgs bosons in the MSSM to a pair
0022  * of SM fermions.
0023  *
0024  * @see \ref SSFFHVertexInterfaces "The interfaces"
0025  * defined for SSFFHVertex.
0026  */
0027 class SSFFHVertex: public FFSVertex {
0028
0029 public:
0030
0031   /**
0032    * The default constructor.
0033    */
0034   SSFFHVertex();
0035
0036   /** @name Functions used by the persistent I/O system. */
0037   //@{
0038   /**
0039    * Function used to write out object persistently.
0040    * @param os the persistent output stream written to.
0041    */
0042   void persistentOutput(PersistentOStream & os) const;
0043
0044   /**
0045    * Function used to read in object persistently.
0046    * @param is the persistent input stream read from.
0047    * @param version the version number of the object when written.
0048    */
0049   void persistentInput(PersistentIStream & is, int version);
0050   //@}
0051
0052   /**
0053    * The standard Init function used to initialize the interfaces.
0054    * Called exactly once for each class by the class description system
0055    * before the main function starts or
0056    * when this class is dynamically loaded.
0057    */
0058   static void Init();
0059
0060   /**
0061    * Calculate the coupling for the vertex
0062    * @param q2 The scale to at which evaluate the coupling.
0063    * @param particle1 The first particle in the vertex.
0064    * @param particle2 The second particle in the vertex.
0065    * @param particle3 The third particle in the vertex.
0066    */
0067   virtual void setCoupling(Energy2 q2, tcPDPtr particle1, tcPDPtr particle2,
0068                tcPDPtr particle3);
0069
0070 protected:
0071
0072   /** @name Clone Methods. */
0073   //@{
0074   /**
0075    * Make a simple clone of this object.
0076    * @return a pointer to the new object.
0077    */
0078   virtual IBPtr clone() const {return new_ptr(*this);}
0079
0080   /** Make a clone of this object, possibly modifying the cloned object
0081    * to make it sane.
0082    * @return a pointer to the new object.
0083    */
0084   virtual IBPtr fullclone() const {return new_ptr(*this);}
0085   //@}
0086
0087 protected:
0088
0089   /** @name Standard Interfaced functions. */
0090   //@{
0091   /**
0092    * Initialize this object after the setup phase before saving an
0093    * EventGenerator to disk.
0094    * @throws InitException if object could not be initialized properly.
0095    */
0096   virtual void doinit();
0097   //@}
0098
0099 private:
0100
0101   /**
0102    * The assignment operator is private and must never be called.
0103    * In fact, it should not even be implemented.
0104    */
0105   SSFFHVertex & operator=(const SSFFHVertex &) = delete;
0106
0107 private:
0108
0109   /**
0110    * Pointer to the SM object.
0111    */
0112   tcMSSMPtr theMSSM;
0113
0114   /**
0115    * The value of \f$\tan\beta\f$.
0116    */
0117   double thetanb;
0118
0119   /**
0120    * The mass of the \f$W\f$.
0121    */
0122   Energy theMw;
0123
0124   /**
0125    * The value of \f$\sin\alpha\f$
0126    */
0127   double theSa;
0128
0129   /**
0130    * The value of \f$\sin\beta\f$
0131    */
0132   double theSb;
0133
0134   /**
0135    * The value of \f$\cos\alpha\f$
0136    */
0137   double theCa;
0138
0139   /**
0140    * The value of \f$\cos\beta\f$
0141    */
0142   double theCb;
0143
0144   /**
0145    * The ID of the last fermion for which the vertex was evaluated
0146    */
0147   pair<long,long> theFLast;
0148
0149   /**
0150    * The value of \f$ \frac{e}{\sin\theta_W} \f$ when it was last evaluated.
0151    */
0152   double theGlast;
0153
0154     /**
0155    * The scale at which then coupling was last evaluated.
0156    */
0157   Energy2 theq2last;
0158
0159   /**
0160    *  Values of the masses
0161    */
0162   pair<Energy,Energy> theMassLast;
0163 };
0164 }
0165
0166 #endif /* HERWIG_SSFFHVertex_H */