Models/Sextet/SextetPVVVertex.h

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