ThePEG  1.8.0
MEQq2Qq4.h
1 // -*- C++ -*-
2 //
3 // MEQq2Qq4.h is a part of ThePEG - Toolkit for HEP Event Generation
4 // Copyright (C) 1999-2011 Leif Lonnblad
5 //
6 // ThePEG is licenced under version 2 of the GPL, see COPYING for details.
7 // Please respect the MCnet academic guidelines, see GUIDELINES for details.
8 //
9 #ifndef ThePEG_MEQq2Qq_H
10 #define ThePEG_MEQq2Qq_H
11 // This is the declaration of the MEQq2Qq class.
12 
13 #include "ThePEG/MatrixElement/ME2to2QCD.h"
14 
15 namespace ThePEG {
16 
25 class MEQq2Qq: public ME2to2QCD {
26 
27 public:
28 
38  virtual double me2() const;
39 
43  virtual void getDiagrams() const;
44 
53  colourGeometries(tcDiagPtr diag) const;
54 
63  virtual Selector<DiagramIndex> diagrams(const DiagramVector & dv) const;
65 
66 protected:
67 
75  double colA() const
76  {
77  return (sqr(uHat()) + sqr(sHat()))/sqr(tHat());
78  }
80 
81 public:
82 
86  static void Init();
87 
88 protected:
89 
96  virtual IBPtr clone() const { return new_ptr(*this); }
97 
102  virtual IBPtr fullclone() const { return new_ptr(*this); }
104 
105 private:
106 
111 
115  MEQq2Qq & operator=(const MEQq2Qq &);
116 
117 };
118 
119 }
120 
121 
122 namespace ThePEG {
123 
128 template <>
129 struct BaseClassTrait<MEQq2Qq,1>: public ClassTraitsType {
131  typedef ME2to2QCD NthBase;
132 };
133 
136 template <>
137 struct ClassTraits<MEQq2Qq>: public ClassTraitsBase<MEQq2Qq> {
139  static string className() { return "ThePEG::MEQq2Qq"; }
143  static string library() { return "MEQCD.so"; }
144 };
145 
148 }
149 
150 #endif /* ThePEG_MEQq2Qq_H */