Herwig++
2.7.0
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The MEHiggsPair class implements the matrix elements for HiggsPairian scattering process.
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#include <MEHiggsPair.h>
Public Member Functions | |
MEHiggsPair () | |
The default constructor. | |
virtual void | setKinematics () |
Set the typed and momenta of the incoming and outgoing partons to be used in subsequent calls to me() and colourGeometries() according to the associated XComb object. | |
virtual int | nDim () const |
The number of internal degrees of freedom used in the matrix element. | |
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 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 bool | generateKinematics (const double *r) |
Generate internal degrees of freedom. | |
virtual CrossSection | dSigHatDR () const |
Return the matrix element squared differential in the variables given by the last call to generateKinematics(). | |
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 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. | |
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 | |
PDPtr | higgs () const |
Access to the higgs data. | |
void | higgs (PDPtr in) |
Set the higgs data. | |
Standard Interfaced functions. | |
virtual void | doinit () |
Initialize this object after the setup phase before saving an EventGenerator to disk. | |
virtual void | rebind (const TranslationMap &trans) |
Rebind pointer to other Interfaced objects. | |
virtual IVector | getReferences () |
Return a vector of all pointers to Interfaced objects used in this object. | |
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. | |
Helper functions for me2. | |
static ClassDescription < MEHiggsPair > | initMEHiggsPair |
The static object used to initialize the description of this class. | |
PDPtr | _higgs |
The higgs boson. | |
Energy | _topmass |
Energy | _bottommass |
Energy | _zmass |
Energy | _m1 |
Energy | _m2 |
Energy | _heavyHmass |
Energy | _heavyHwidth |
GenericMassGeneratorPtr | _hmass |
The mass generator for the Higgs. | |
double | _selfcoupling |
multiplier for the SM triple-coupling | |
double | _hhHcoupling |
multiplier for the hhH triple-coupling | |
unsigned int | _process |
Processes to include. | |
Energy | _mh |
On-shell mass for the higgs. | |
Energy | _wh |
On-shell width for the higgs. | |
MEHiggsPair & | operator= (const MEHiggsPair &) |
The assignment operator is private and must never be called. | |
virtual vector< Complex > | iniscal (double AMQ, double S, double T, double U, double M1, double M2) const |
virtual double | MATRIX (double S, double T, double U, double M1, double M2) const |
The MEHiggsPair class implements the matrix elements for HiggsPairian scattering process.
Definition at line 63 of file MEHiggsPair.h.
virtual IBPtr Herwig::MEHiggsPair::clone | ( | ) | const [protected, virtual] |
Make a simple clone of this object.
Implements ThePEG::InterfacedBase.
virtual Selector<const ColourLines *> Herwig::MEHiggsPair::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::MEHiggsPair::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::MEHiggsPair::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::MEHiggsPair::fullclone | ( | ) | const [protected, virtual] |
Make a clone of this object, possibly modifying the cloned object to make it sane.
Reimplemented from ThePEG::InterfacedBase.
virtual IVector Herwig::MEHiggsPair::getReferences | ( | ) | [protected, virtual] |
Return a vector of all pointers to Interfaced objects used in this object.
Reimplemented from ThePEG::InterfacedBase.
static void Herwig::MEHiggsPair::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::MEHiggsPair::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.
MEHiggsPair& Herwig::MEHiggsPair::operator= | ( | const MEHiggsPair & | ) | [private] |
The assignment operator is private and must never be called.
In fact, it should not even be implemented.
void Herwig::MEHiggsPair::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::MEHiggsPair::persistentOutput | ( | PersistentOStream & | os | ) | const |
Function used to write out object persistently.
os | the persistent output stream written to. |
Reimplemented from Herwig::HwMEBase.
virtual void Herwig::MEHiggsPair::rebind | ( | const TranslationMap & | trans | ) | [protected, virtual] |
Rebind pointer to other Interfaced objects.
Called in the setup phase after all objects used in an EventGenerator has been cloned so that the pointers will refer to the cloned objects afterwards.
trans | a TranslationMap relating the original objects to their respective clones. |
RebindException | if no cloned object was found for a given pointer. |
Reimplemented from ThePEG::InterfacedBase.
ClassDescription<MEHiggsPair> Herwig::MEHiggsPair::initMEHiggsPair [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 249 of file MEHiggsPair.h.