herwig is hosted by Hepforge, IPPP Durham
Herwig 7.3.0
FFMqgxDipole.h
1// -*- C++ -*-
2//
3// FFMqgxDipole.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_FFMqgxDipole_H
10#define HERWIG_FFMqgxDipole_H
11//
12// This is the declaration of the FFMqgxDipole class.
13//
14
15#include "Herwig/MatrixElement/Matchbox/Dipoles/SubtractionDipole.h"
16
17namespace Herwig {
18
19using namespace ThePEG;
20
30
31public:
32
37
38public:
39
44 virtual bool canHandleEmitter(const cPDVector& partons, int emitter) const {
45 return emitter > 1 && abs(partons[emitter]->id()) < 7;
46 }
47
52 virtual bool canHandleSplitting(const cPDVector& partons, int emitter, int emission) const {
53 return canHandleEmitter(partons,emitter) && partons[emission]->id() == ParticleID::g;
54 }
55
60 virtual bool canHandleSpectator(const cPDVector& partons, int spectator) const {
61 return spectator > 1 && partons[spectator]->coloured();
62 }
63
68 virtual bool canHandle(const cPDVector& partons,
69 int emitter, int emission, int spectator) const;
70
79 virtual int samplingZ() const {return 3;}
80
86 virtual double me2() const;
87
91 virtual double me2Avg(double ccme2) const;
92
93public:
94
102
108 void persistentInput(PersistentIStream & is, int version);
110
117 static void Init();
118
119protected:
120
127 virtual IBPtr clone() const;
128
133 virtual IBPtr fullclone() const;
135
136
137// If needed, insert declarations of virtual function defined in the
138// InterfacedBase class here (using ThePEG-interfaced-decl in Emacs).
139
140
141private:
142
148
149};
150
151}
152
153#endif /* HERWIG_FFMqgxDipole_H */
FFMqgxDipole implements the D_{Q,g;k} subtraction dipole, as well as the D_{gluino,...
Definition: FFMqgxDipole.h:29
void persistentOutput(PersistentOStream &os) const
Function used to write out object persistently.
virtual bool canHandle(const cPDVector &partons, int emitter, int emission, int spectator) const
Return true, if this dipole applies to the selected configuration.
virtual int samplingZ() const
How to sample the z-distribution.
Definition: FFMqgxDipole.h:79
static void Init()
The standard Init function used to initialize the interfaces.
virtual bool canHandleSpectator(const cPDVector &partons, int spectator) const
Return true, if this dipole can possibly handle the indicated spectator.
Definition: FFMqgxDipole.h:60
virtual IBPtr clone() const
Make a simple clone of this object.
FFMqgxDipole & operator=(const FFMqgxDipole &)=delete
The assignment operator is private and must never be called.
FFMqgxDipole()
The default constructor.
void persistentInput(PersistentIStream &is, int version)
Function used to read in object persistently.
virtual double me2() const
Return the matrix element for the kinematical configuation previously provided by the last call to se...
virtual bool canHandleSplitting(const cPDVector &partons, int emitter, int emission) const
Return true, if this dipole can possibly handle the indicated splitting.
Definition: FFMqgxDipole.h:52
virtual double me2Avg(double ccme2) const
Return the matrix element averaged over spin correlations.
virtual bool canHandleEmitter(const cPDVector &partons, int emitter) const
Return true, if this dipole can possibly handle the indicated emitter.
Definition: FFMqgxDipole.h:44
virtual IBPtr fullclone() const
Make a clone of this object, possibly modifying the cloned object to make it sane.
SubtractionDipole represents a dipole subtraction term in the formalism of Catani and Seymour.
static int emission(const RealEmissionKey &key)
Return the emission id of a real emission key.
static int emitter(const RealEmissionKey &key)
Return the emitter id of a real emission key.
static int spectator(const RealEmissionKey &key)
Return the spectator id of a real emission key.
-*- C++ -*-
ThePEG::Ptr< InterfacedBase >::pointer IBPtr
vector< cPDPtr > cPDVector