Models/LHTP/LHTPFFGVertex.h

0001 // -*- C++ -*-
0002 #ifndef HERWIG_LHTPFFGVertex_H
0003 #define HERWIG_LHTPFFGVertex_H
0004 //
0005 // This is the declaration of the LHTPFFGVertex class.
0006 //
0007
0008 #include "ThePEG/Helicity/Vertex/Vector/FFVVertex.h"
0009
0010 namespace Herwig {
0011
0012 using namespace ThePEG;
0013
0014 /**
0015  * The LHTPFFGVertex class implements the coupling of the
0016  * gluon to the coloured fermions, the SM quarks, the extra top-like quark
0017  * and the T-parity odd quarks of the Little Higgs model with T-parity.
0018  */
0019 class LHTPFFGVertex: public Helicity::FFVVertex {
0020
0021 public:
0022
0023   /**
0024    * The default constructor.
0025    */
0026   LHTPFFGVertex();
0027
0028   /**
0029    * Calculate the couplings.
0030    * @param q2 The scale \f$q^2\f$ for the coupling at the vertex.
0031    * @param part1 The ParticleData pointer for the first  particle.
0032    * @param part2 The ParticleData pointer for the second particle.
0033    * @param part3 The ParticleData pointer for the third  particle.
0034    */
0035   virtual void setCoupling(Energy2 q2,tcPDPtr part1,tcPDPtr part2,tcPDPtr part3);
0036
0037   /**
0038    * The standard Init function used to initialize the interfaces.
0039    * Called exactly once for each class by the class description system
0040    * before the main function starts or
0041    * when this class is dynamically loaded.
0042    */
0043   static void Init();
0044
0045 protected:
0046
0047   /** @name Clone Methods. */
0048   //@{
0049   /**
0050    * Make a simple clone of this object.
0051    * @return a pointer to the new object.
0052    */
0053   virtual IBPtr clone() const;
0054
0055   /** Make a clone of this object, possibly modifying the cloned object
0056    * to make it sane.
0057    * @return a pointer to the new object.
0058    */
0059   virtual IBPtr fullclone() const;
0060   //@}
0061
0062 protected:
0063
0064   /** @name Standard Interfaced functions. */
0065   //@{
0066   /**
0067    * Initialize this object after the setup phase before saving an
0068    * EventGenerator to disk.
0069    * @throws InitException if object could not be initialized properly.
0070    */
0071   virtual void doinit();
0072   //@}
0073
0074 private:
0075
0076   /**
0077    * The assignment operator is private and must never be called.
0078    * In fact, it should not even be implemented.
0079    */
0080   LHTPFFGVertex & operator=(const LHTPFFGVertex &) = delete;
0081
0082 private:
0083
0084   /**
0085    * Storage of the couplings.
0086    */
0087   //@{
0088   /**
0089    *  The last value of the strong coupling calculated.
0090    */
0091   Complex coupLast_;
0092
0093   /**
0094    *  The scale \f$q^2\f$ at which the coupling was last evaluated.
0095    */
0096   Energy2 q2Last_;
0097   //@}
0098
0099 };
0100
0101 }
0102
0103 #endif /* HERWIG_LHTPFFGVertex_H */