Herwig++
2.7.0
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The MEPP2SingleTop class implements the matrix element for the production of a single top quark. More...
#include <MEPP2SingleTop.h>
Public Member Functions | |
MEPP2SingleTop () | |
The default constructor. | |
Virtual functions required by the MEBase class. | |
virtual unsigned int | orderInAlphaS () const |
Return the order in ![]() | |
virtual unsigned int | orderInAlphaEW () const |
Return the order in ![]() | |
virtual double | me2 () const |
The matrix element for the kinematical configuration previously provided by the last call to setKinematics(), suitably scaled by sHat() to give a dimension-less number. | |
virtual Energy2 | scale () const |
Return the scale associated with the last set phase space point. | |
virtual void | getDiagrams () const |
Add all possible diagrams with the add() function. | |
virtual Selector< DiagramIndex > | diagrams (const DiagramVector &dv) const |
Get diagram selector. | |
virtual Selector< const ColourLines * > | colourGeometries (tcDiagPtr diag) const |
Return a Selector with possible colour geometries for the selected diagram weighted by their relative probabilities. | |
virtual void | constructVertex (tSubProPtr) |
Construct the vertex of spin correlations. | |
Functions used by the persistent I/O system. | |
void | persistentOutput (PersistentOStream &os) const |
Function used to write out object persistently. | |
void | persistentInput (PersistentIStream &is, int version) |
Function used to read in object persistently. | |
Static Public Member Functions | |
static void | Init () |
The standard Init function used to initialize the interfaces. | |
Protected Member Functions | |
double | sChannelME (vector< SpinorWaveFunction > &fin, vector< SpinorBarWaveFunction > &ain, vector< SpinorBarWaveFunction > &fout, vector< SpinorWaveFunction > &aout, bool me) const |
Matrix Elements ofr the different processes. | |
double | tChannelME (vector< SpinorWaveFunction > &f1, vector< SpinorBarWaveFunction > &a1, vector< SpinorWaveFunction > &f2, vector< SpinorBarWaveFunction > &a2, bool me) const |
Matrix element for ![]() | |
double | tWME (vector< SpinorWaveFunction > &fin, vector< VectorWaveFunction > &gin, vector< SpinorBarWaveFunction > &fout, vector< VectorWaveFunction > &Wout, bool me) const |
Matrix element for ![]() | |
Clone Methods. | |
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. | |
Standard Interfaced functions. | |
virtual void | doinit () |
Initialize this object after the setup phase before saving an EventGenerator to disk. | |
Private Member Functions | |
MEPP2SingleTop & | operator= (const MEPP2SingleTop &) |
The assignment operator is private and must never be called. | |
Private Attributes | |
unsigned int | process_ |
Which processes to include. | |
int | maxflavour_ |
Allowed flavours of the incoming quarks. | |
int | topOption_ |
Treatment of the top quark mass. | |
int | wOption_ |
Treatment of the W mass. | |
ProductionMatrixElement | me_ |
The matrix element. | |
AbstractFFVVertexPtr | FFWvertex_ |
Vertices. | |
AbstractFFVVertexPtr | FFGvertex_ |
FFGVertex. | |
Static Private Attributes | |
static ClassDescription < MEPP2SingleTop > | initMEPP2SingleTop |
The static object used to initialize the description of this class. |
The MEPP2SingleTop class implements the matrix element for the production of a single top quark.
Definition at line 23 of file MEPP2SingleTop.h.
virtual IBPtr Herwig::MEPP2SingleTop::clone | ( | ) | const [protected, virtual] |
Make a simple clone of this object.
Implements ThePEG::InterfacedBase.
virtual Selector<const ColourLines *> Herwig::MEPP2SingleTop::colourGeometries | ( | tcDiagPtr | diag | ) | const [virtual] |
Return a Selector with possible colour geometries for the selected diagram weighted by their relative probabilities.
diag | the diagram chosen. |
Implements ThePEG::MEBase.
virtual Selector<DiagramIndex> Herwig::MEPP2SingleTop::diagrams | ( | const DiagramVector & | dv | ) | const [virtual] |
Get diagram selector.
With the information previously supplied with the setKinematics method, a derived class may optionally override this method to weight the given diagrams with their (although certainly not physical) relative probabilities.
dv | the diagrams to be weighted. |
Reimplemented from ThePEG::MEBase.
virtual void Herwig::MEPP2SingleTop::doinit | ( | ) | [protected, virtual] |
Initialize this object after the setup phase before saving an EventGenerator to disk.
InitException | if object could not be initialized properly. |
Reimplemented from ThePEG::InterfacedBase.
virtual IBPtr Herwig::MEPP2SingleTop::fullclone | ( | ) | const [protected, virtual] |
Make a clone of this object, possibly modifying the cloned object to make it sane.
Reimplemented from ThePEG::InterfacedBase.
static void Herwig::MEPP2SingleTop::Init | ( | ) | [static] |
The standard Init function used to initialize the interfaces.
Called exactly once for each class by the class description system before the main function starts or when this class is dynamically loaded.
Reimplemented from Herwig::HwMEBase.
virtual double Herwig::MEPP2SingleTop::me2 | ( | ) | const [virtual] |
The matrix element for the kinematical configuration previously provided by the last call to setKinematics(), suitably scaled by sHat() to give a dimension-less number.
Implements ThePEG::MEBase.
MEPP2SingleTop& Herwig::MEPP2SingleTop::operator= | ( | const MEPP2SingleTop & | ) | [private] |
The assignment operator is private and must never be called.
In fact, it should not even be implemented.
void Herwig::MEPP2SingleTop::persistentInput | ( | PersistentIStream & | is, |
int | version | ||
) |
Function used to read in object persistently.
is | the persistent input stream read from. |
version | the version number of the object when written. |
Reimplemented from Herwig::HwMEBase.
void Herwig::MEPP2SingleTop::persistentOutput | ( | PersistentOStream & | os | ) | const |
Function used to write out object persistently.
os | the persistent output stream written to. |
Reimplemented from Herwig::HwMEBase.
double Herwig::MEPP2SingleTop::sChannelME | ( | vector< SpinorWaveFunction > & | fin, |
vector< SpinorBarWaveFunction > & | ain, | ||
vector< SpinorBarWaveFunction > & | fout, | ||
vector< SpinorWaveFunction > & | aout, | ||
bool | me | ||
) | const [protected] |
Matrix Elements ofr the different processes.
Matrix element for .
fin | Spinors for incoming quark |
ain | Spinors for incoming antiquark |
fout | Spinors for incoming quark |
aout | Spinors for incoming antiquark |
me | Whether or not to calculate the matrix element for spin correlations |
double Herwig::MEPP2SingleTop::tChannelME | ( | vector< SpinorWaveFunction > & | f1, |
vector< SpinorBarWaveFunction > & | a1, | ||
vector< SpinorWaveFunction > & | f2, | ||
vector< SpinorBarWaveFunction > & | a2, | ||
bool | me | ||
) | const [protected] |
Matrix element for .
f1 | Spinors for incoming quark |
a1 | Spinors for incoming antiquark |
f2 | Spinors for incoming quark |
a2 | Spinors for incoming antiquark |
me | Whether or not to calculate the matrix element for spin correlations |
double Herwig::MEPP2SingleTop::tWME | ( | vector< SpinorWaveFunction > & | fin, |
vector< VectorWaveFunction > & | gin, | ||
vector< SpinorBarWaveFunction > & | fout, | ||
vector< VectorWaveFunction > & | Wout, | ||
bool | me | ||
) | const [protected] |
Matrix element for .
fin | Spinors for incoming quark |
gin | Polarization vectors for the incoming gluon |
fout | Spinors for outgoing quark |
Wout | Polarization vectors for the outgoing W |
me | Whether or not to calculate the matrix element for spin correlations |
ClassDescription<MEPP2SingleTop> Herwig::MEPP2SingleTop::initMEPP2SingleTop [static, private] |
The static object used to initialize the description of this class.
Indicates that this is a concrete class with persistent data.
Definition at line 201 of file MEPP2SingleTop.h.