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Herwig 7.3.0
IFMqqxDipole.h
1// -*- C++ -*-
2//
3// IFMqqxDipole.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_IFMqqxDipole_H
10#define HERWIG_IFMqqxDipole_H
11//
12// This is the declaration of the IFMqqxDipole 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 emitter < 2 && abs(partons[emitter]->id()) < 7;
45 }
46
51 virtual bool canHandleSplitting(const cPDVector& partons, int emitter, int emission) const {
52 return
53 canHandleEmitter(partons,emitter) &&
54 partons[emitter]->id() == partons[emission]->id();
55 }
56
61 virtual bool canHandleSpectator(const cPDVector& partons, int spectator) const {
62 return spectator > 1 && partons[spectator]->coloured();
63 }
64
69 virtual bool canHandle(const cPDVector& partons,
70 int emitter, int emission, int spectator) const;
71
80 virtual int samplingZ() const {return 2;}
81
87 virtual double me2() const;
88
92 virtual double me2Avg(double ccme2) const;
93
94public:
95
103
109 void persistentInput(PersistentIStream & is, int version);
111
118 static void Init();
119
120protected:
121
128 virtual IBPtr clone() const;
129
134 virtual IBPtr fullclone() const;
136
137
138// If needed, insert declarations of virtual function defined in the
139// InterfacedBase class here (using ThePEG-interfaced-decl in Emacs).
140
141
142private:
143
149
150};
151
152}
153
154#endif /* HERWIG_IFMqqxDipole_H */
IFMqqxDipole implements the D^{q,qbar}_k subtraction dipole.
Definition: IFMqqxDipole.h:28
virtual double me2Avg(double ccme2) const
Return the matrix element averaged over spin correlations.
void persistentOutput(PersistentOStream &os) const
Function used to write out object persistently.
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.
virtual int samplingZ() const
How to sample the z-distribution.
Definition: IFMqqxDipole.h:80
static void Init()
The standard Init function used to initialize the interfaces.
virtual IBPtr fullclone() const
Make a clone of this object, possibly modifying the cloned object to make it sane.
virtual IBPtr clone() const
Make a simple clone of this object.
virtual bool canHandleSplitting(const cPDVector &partons, int emitter, int emission) const
Return true, if this dipole can possibly handle the indicated splitting.
Definition: IFMqqxDipole.h:51
IFMqqxDipole & operator=(const IFMqqxDipole &)=delete
The assignment operator is private and must never be called.
virtual bool canHandleSpectator(const cPDVector &partons, int spectator) const
Return true, if this dipole can possibly handle the indicated spectator.
Definition: IFMqqxDipole.h:61
void persistentInput(PersistentIStream &is, int version)
Function used to read in object persistently.
IFMqqxDipole()
The default constructor.
virtual bool canHandleEmitter(const cPDVector &partons, int emitter) const
Return true, if this dipole can possibly handle the indicated emitter.
Definition: IFMqqxDipole.h:43
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