Herwig++
2.7.0
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The MEChargedCurrentDIS class provides the matrix elements for charged current DIS. More...
#include <MEChargedCurrentDIS.h>
Public Member Functions | |
MEChargedCurrentDIS () | |
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 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 | helicityME (vector< SpinorWaveFunction > &f1, vector< SpinorWaveFunction > &f2, vector< SpinorBarWaveFunction > &a1, vector< SpinorBarWaveFunction > &a2, bool lorder, bool qorder, bool me) const |
Matrix element for ![]() | |
virtual double | A (tcPDPtr lin, tcPDPtr lout, tcPDPtr qin, tcPDPtr qout, Energy2 scale) const |
Calculate the coefficient A for the correlations in the hard radiation. | |
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 | |
MEChargedCurrentDIS & | operator= (const MEChargedCurrentDIS &) |
The assignment operator is private and must never be called. | |
Private Attributes | |
AbstractFFVVertexPtr | _theFFWVertex |
Pointer to the vertex for the helicity calculations. | |
unsigned int | _maxflavour |
The allowed flavours of the incoming quarks. | |
unsigned int | _massopt |
Option for the mass of the outgoing quarks. | |
ProductionMatrixElement | _me |
Matrix element for spin correlations. | |
tcPDPtr | _wp |
Pointers to the intermediates resonances. | |
tcPDPtr | _wm |
Pointer to the ![]() | |
Static Private Attributes | |
static ClassDescription < MEChargedCurrentDIS > | initMEChargedCurrentDIS |
The static object used to initialize the description of this class. |
The MEChargedCurrentDIS class provides the matrix elements for charged current DIS.
By default both the incoming and outgong quarks are assumed to be massless although the mass of the outgoing quark can be included if required. This option should be used if top production is included.
Definition at line 29 of file MEChargedCurrentDIS.h.
virtual IBPtr Herwig::MEChargedCurrentDIS::clone | ( | ) | const [inline, protected, virtual] |
Make a simple clone of this object.
Implements ThePEG::InterfacedBase.
Definition at line 153 of file MEChargedCurrentDIS.h.
virtual Selector<const ColourLines *> Herwig::MEChargedCurrentDIS::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::MEChargedCurrentDIS::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::MEChargedCurrentDIS::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 Herwig::DISBase.
virtual IBPtr Herwig::MEChargedCurrentDIS::fullclone | ( | ) | const [inline, protected, virtual] |
Make a clone of this object, possibly modifying the cloned object to make it sane.
Reimplemented from ThePEG::InterfacedBase.
Definition at line 159 of file MEChargedCurrentDIS.h.
double Herwig::MEChargedCurrentDIS::helicityME | ( | vector< SpinorWaveFunction > & | f1, |
vector< SpinorWaveFunction > & | f2, | ||
vector< SpinorBarWaveFunction > & | a1, | ||
vector< SpinorBarWaveFunction > & | a2, | ||
bool | lorder, | ||
bool | qorder, | ||
bool | me | ||
) | const [protected] |
Matrix element for .
f1 | Fermion on lepton line |
a1 | Anti-fermion on lepton line |
f2 | Fermion on quark line |
a2 | Anti-fermion on quark line |
lorder | The order of particles on the lepton line |
qorder | The order of particles on the quark line |
me | Whether or not to calculate the matrix element for spin correlations |
static void Herwig::MEChargedCurrentDIS::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::DISBase.
virtual double Herwig::MEChargedCurrentDIS::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.
MEChargedCurrentDIS& Herwig::MEChargedCurrentDIS::operator= | ( | const MEChargedCurrentDIS & | ) | [private] |
The assignment operator is private and must never be called.
In fact, it should not even be implemented.
void Herwig::MEChargedCurrentDIS::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::DISBase.
void Herwig::MEChargedCurrentDIS::persistentOutput | ( | PersistentOStream & | os | ) | const |
Function used to write out object persistently.
os | the persistent output stream written to. |
Reimplemented from Herwig::DISBase.
tcPDPtr Herwig::MEChargedCurrentDIS::_wp [private] |
Pointers to the intermediates resonances.
Pointer to the
Definition at line 217 of file MEChargedCurrentDIS.h.
ClassDescription<MEChargedCurrentDIS> Herwig::MEChargedCurrentDIS::initMEChargedCurrentDIS [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 180 of file MEChargedCurrentDIS.h.