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Herwig 7.3.0
FIMsqgxDipole.h
1// -*- C++ -*-
2//
3// FIMsqgxDipole.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_FIMsqgxDipole_H
10#define HERWIG_FIMsqgxDipole_H
11//
12// This is the declaration of the FIMsqgxDipole class.
13//
14
15#include "Herwig/MatrixElement/Matchbox/Dipoles/SubtractionDipole.h"
16
17namespace Herwig {
18
19using namespace ThePEG;
20
29
30public:
31
36
37public:
38
43 virtual bool canHandleEmitter(const cPDVector& partons, int emitter) const {
44 return
45 emitter > 1 &&
46 (abs(abs(partons[emitter]->id()) - 1000000) < 7 || abs(abs(partons[emitter]->id()) - 2000000) < 7);
47 }
48
53 virtual bool canHandleSplitting(const cPDVector& partons, int emitter, int emission) const {
54 return
55 canHandleEmitter(partons,emitter) &&
56 partons[emission]->id() == ParticleID::g;
57 }
58
63 virtual bool canHandleSpectator(const cPDVector& partons, int spectator) const {
64 return spectator < 2 && partons[spectator]->coloured();
65 }
66
71 virtual bool canHandle(const cPDVector& partons,
72 int emitter, int emission, int spectator) const;
73
82 virtual int samplingZ() const {return 3;}
83
89 virtual double me2() const;
90
94 virtual double me2Avg(double ccme2) const;
95
96public:
97
105
111 void persistentInput(PersistentIStream & is, int version);
113
120 static void Init();
121
122protected:
123
130 virtual IBPtr clone() const;
131
136 virtual IBPtr fullclone() const;
138
139
140// If needed, insert declarations of virtual function defined in the
141// InterfacedBase class here (using ThePEG-interfaced-decl in Emacs).
142
143
144private:
145
151
152};
153
154}
155
156#endif /* HERWIG_FIMsqgxDipole_H */
FIMsqgxDipole implements the D_{sq,g}^a subtraction dipole.
Definition: FIMsqgxDipole.h:28
virtual bool canHandleEmitter(const cPDVector &partons, int emitter) const
Return true, if this dipole can possibly handle the indicated emitter.
Definition: FIMsqgxDipole.h:43
void persistentInput(PersistentIStream &is, int version)
Function used to read in object persistently.
virtual double me2Avg(double ccme2) const
Return the matrix element averaged over spin correlations.
FIMsqgxDipole()
The default constructor.
virtual bool canHandleSpectator(const cPDVector &partons, int spectator) const
Return true, if this dipole can possibly handle the indicated spectator.
Definition: FIMsqgxDipole.h:63
virtual bool canHandleSplitting(const cPDVector &partons, int emitter, int emission) const
Return true, if this dipole can possibly handle the indicated splitting.
Definition: FIMsqgxDipole.h:53
virtual double me2() const
Return the matrix element for the kinematical configuation previously provided by the last call to se...
virtual bool canHandle(const cPDVector &partons, int emitter, int emission, int spectator) const
Return true, if this dipole applies to the selected configuration.
void persistentOutput(PersistentOStream &os) const
Function used to write out object persistently.
static void Init()
The standard Init function used to initialize the interfaces.
FIMsqgxDipole & operator=(const FIMsqgxDipole &)=delete
The assignment operator is private and must never be called.
virtual IBPtr clone() const
Make a simple clone of this object.
virtual IBPtr fullclone() const
Make a clone of this object, possibly modifying the cloned object to make it sane.
virtual int samplingZ() const
How to sample the z-distribution.
Definition: FIMsqgxDipole.h:82
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