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Herwig  7.2.1
SMHGGVertex.h
1 // -*- C++ -*-
2 //
3 // SMHGGVertex.h is a part of Herwig - A multi-purpose Monte Carlo event generator
4 // Copyright (C) 2002-2019 The Herwig Collaboration
5 //
6 // Herwig 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 HERWIG_SMHGGVertex_H
10 #define HERWIG_SMHGGVertex_H
11 //
12 // This is the declaration of the SMHGGVertex class.
13 //
14 
15 #include "Herwig/Models/General/VVSLoopVertex.h"
16 #include "Herwig/Models/StandardModel/StandardModel.h"
17 #include "ThePEG/PDT/EnumParticles.h"
18 
19 namespace Herwig {
20 using namespace ThePEG;
21 
27 class SMHGGVertex: public VVSLoopVertex {
28 
29 public:
30 
34  SMHGGVertex();
35 
42  void persistentOutput(PersistentOStream & os) const;
43 
49  void persistentInput(PersistentIStream & is, int version);
51 
58  static void Init();
59 
67  virtual void setCoupling (Energy2 q2, tcPDPtr part1, tcPDPtr part2, tcPDPtr part3);
68 
69 protected:
70 
77  virtual IBPtr clone() const {return new_ptr(*this);}
78 
83  virtual IBPtr fullclone() const {return new_ptr(*this);}
85 
91  virtual void doinit();
92 
93 private:
98  SMHGGVertex & operator=(const SMHGGVertex &) = delete;
99 
108 
112  Energy2 _q2last;
114 
118  tcHwSMPtr _theSM;
119 
123  Energy _mw;
124 
128  unsigned int massopt;
129 
133  int _minloop;
134 
138  int _maxloop;
139 
143  Complex Af(double labmda) const;
144 
148  Complex W2(double lambda) const;
149 
155  unsigned int _CoefRepresentation;
156 
157 };
158 
159 }
160 
161 // CLASSDOC OFF
162 
163 #endif /* HERWIG_SMHGGVertex_H */
Complex _couplast
Storage of couplings.
Definition: SMHGGVertex.h:107
int _minloop
The minimum flavour number in quark loops.
Definition: SMHGGVertex.h:133
std::complex< double > Complex
Energy2 _q2last
The scale at which coupling was last evaluated.
Definition: SMHGGVertex.h:112
ThePEG::Ptr< InterfacedBase >::pointer IBPtr
The SMHGGVertex class implements the setCoupling member for the Standard Model effective vertex Higgs...
Definition: SMHGGVertex.h:27
int _maxloop
The maximum flavour number in quark loops.
Definition: SMHGGVertex.h:138
unsigned int _CoefRepresentation
Switch between two representations of coefficients (_a00,_a11,_a12,_a21,_a22,_aEp): suitable for the ...
Definition: SMHGGVertex.h:155
unsigned int massopt
define quark mass scheme (fixed/running)
Definition: SMHGGVertex.h:128
ThePEG::Ptr< ParticleData >::transient_const_pointer tcPDPtr
The VVSLoopVertex is designed to calculate the coefficents for the terms in the Passarino-Veltman ten...
Definition: VVSLoopVertex.h:21
virtual IBPtr fullclone() const
Make a clone of this object, possibly modifying the cloned object to make it sane.
Definition: SMHGGVertex.h:83
-*- C++ -*-
virtual IBPtr clone() const
Make a simple clone of this object.
Definition: SMHGGVertex.h:77
tcHwSMPtr _theSM
Pointer to Standard Model object.
Definition: SMHGGVertex.h:118
Energy _mw
Mass of W-boson for higgs coupling.
Definition: SMHGGVertex.h:123