thepeg is hosted by Hepforge, IPPP Durham
ThePEG  2.1.5
VVSSVertex.h
1 // -*- C++ -*-
2 //
3 // VVSSVertex.h is a part of ThePEG - Toolkit for HEP Event Generation
4 // Copyright (C) 2003-2017 Peter Richardson, Leif Lonnblad
5 //
6 // ThePEG is licenced under version 3 of the GPL, see COPYING for details.
7 // Please respect the MCnet academic guidelines, see GUIDELINES for details.
8 //
9 #ifndef ThePEG_VVSSVertex_H
10 #define ThePEG_VVSSVertex_H
11 //
12 // This is the declaration of the VVSSVertex class.
13 //
14 #include "ThePEG/Helicity/Vertex/AbstractVVSSVertex.h"
15 #include "ThePEG/Helicity/WaveFunction/ScalarWaveFunction.h"
16 #include "ThePEG/Helicity/WaveFunction/VectorWaveFunction.h"
17 #include "VVSSVertex.fh"
18 
19 namespace ThePEG {
20 namespace Helicity {
21 
36 
37 public:
38 
42  static void Init();
43 
44 public:
45 
59  Complex evaluate(Energy2 q2, const VectorWaveFunction & vec1,
60  const VectorWaveFunction & vec2, const ScalarWaveFunction & sca3,
61  const ScalarWaveFunction & sca4);
62 
76  VectorWaveFunction evaluate(Energy2 q2, int iopt,tcPDPtr out,
77  const VectorWaveFunction & vec2,
78  const ScalarWaveFunction & sca3,
79  const ScalarWaveFunction & sca4,
80  complex<Energy> mass=-GeV, complex<Energy> width=-GeV);
81 
95  ScalarWaveFunction evaluate(Energy2 q2, int iopt,tcPDPtr out,
96  const VectorWaveFunction & vec1,
97  const VectorWaveFunction & vec2,
98  const ScalarWaveFunction & sca3,
99  complex<Energy> mass=-GeV, complex<Energy> width=-GeV);
101 
110  assert(false);
111  }
112 
123  virtual void setCoupling(Energy2 q2,tcPDPtr part1,tcPDPtr part2,tcPDPtr part3,
124  tcPDPtr part4)=0;
126 
127 private:
128 
132  VVSSVertex & operator=(const VVSSVertex &) = delete;
133 
134 };
135 
136 }
137 
138 }
139 #endif /* ThePEG_VVSSVertex_H */
The AbstractVVSSVertex class is the base class for vector-vector-scalar-scalar interactions in ThePEG...
Complex evaluate(Energy2 q2, const VectorWaveFunction &vec1, const VectorWaveFunction &vec2, const ScalarWaveFunction &sca3, const ScalarWaveFunction &sca4)
Members to calculate the helicity amplitude expressions for vertices and off-shell particles...
std::complex< double > Complex
ThePEG code should use Complex for all complex scalars.
Definition: Complex.h:23
TransientConstRCPtr is a simple wrapper around a bare const pointer which can be assigned to and from...
Definition: RCPtr.h:696
This is the main namespace within which all identifiers in ThePEG are declared.
Definition: FactoryBase.h:28
virtual void setCoupling(Energy2, tcPDPtr, tcPDPtr, tcPDPtr)
Set coupling methods.
Definition: VVSSVertex.h:109
The VVSSVertex class is the implementation of the coupling of two vectors and two scalars...
Definition: VVSSVertex.h:35
VVSSVertex & operator=(const VVSSVertex &)=delete
Private and non-existent assignment operator.
static void Init()
Standard Init function used to initialize the interfaces.