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ThePEG 2.3.0
AbstractSSTVertex.h
1// -*- C++ -*-
2#ifndef HELICITY_AbstractSSTVertex_H
3#define HELICITY_AbstractSSTVertex_H
4//
5// This is the declaration of the AbstractSSTVertex class.
6//
7
8#include "VertexBase.h"
9#include "ThePEG/Helicity/WaveFunction/ScalarWaveFunction.h"
10#include "ThePEG/Helicity/WaveFunction/TensorWaveFunction.h"
11#include "AbstractSSTVertex.fh"
12
13namespace ThePEG {
14namespace Helicity {
15
21
22public:
23
24
28 AbstractSSTVertex() : VertexBase(VertexType::SST) {}
29
42 virtual Complex evaluate(Energy2 q2, const ScalarWaveFunction & sca1,
43 const ScalarWaveFunction & sca2,
44 const TensorWaveFunction & ten3) = 0;
45
58 virtual ScalarWaveFunction evaluate(Energy2 q2,int iopt,tcPDPtr out,
59 const ScalarWaveFunction & sca1,
60 const TensorWaveFunction & ten3,
61 complex<Energy> mass=-GeV, complex<Energy> width=-GeV) = 0;
62
75 virtual TensorWaveFunction evaluate(Energy2 q2,int iopt,tcPDPtr out,
76 const ScalarWaveFunction & sca1,
77 const ScalarWaveFunction & sca2,
78 complex<Energy> mass=-GeV, complex<Energy> width=-GeV) = 0;
80
81public:
82
89 static void Init();
90
91private:
92
98
99};
100
101}
102}
103
104
105namespace ThePEG {
106
107}
108#endif /* HELICITY_AbstractSSTVertex_H */
The AbstractSSTVertex class is the base class for scalar-scalar-tensor interactions in ThePEG.
AbstractSSTVertex()
Default constructor.
virtual Complex evaluate(Energy2 q2, const ScalarWaveFunction &sca1, const ScalarWaveFunction &sca2, const TensorWaveFunction &ten3)=0
Members to calculate the helicity amplitude expressions for vertices and off-shell particles.
static void Init()
The standard Init function used to initialize the interfaces.
virtual TensorWaveFunction evaluate(Energy2 q2, int iopt, tcPDPtr out, const ScalarWaveFunction &sca1, const ScalarWaveFunction &sca2, complex< Energy > mass=-GeV, complex< Energy > width=-GeV)=0
Evaluate the off-shell tensor coming from the vertex.
AbstractSSTVertex & operator=(const AbstractSSTVertex &)=delete
The assignment operator is private and must never be called.
virtual ScalarWaveFunction evaluate(Energy2 q2, int iopt, tcPDPtr out, const ScalarWaveFunction &sca1, const TensorWaveFunction &ten3, complex< Energy > mass=-GeV, complex< Energy > width=-GeV)=0
Evaluate the off-shell scalar coming from the vertex.
The VertexBase class is the base class for all helicity amplitude vertices.
Definition: VertexBase.h:83
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
std::complex< double > Complex
ThePEG code should use Complex for all complex scalars.
Definition: Complex.h:23