herwig is hosted by Hepforge, IPPP Durham
Herwig 7.3.0
Herwig::MEHiggsPair Class Reference

The MEHiggsPair class implements the matrix elements for HiggsPairian \(2\to2\) scattering process. More...

#include <MEHiggsPair.h>

Inheritance diagram for Herwig::MEHiggsPair:

Public Member Functions

 MEHiggsPair ()
 The default constructor.
 
Virtual functions required by the MEBase class.
virtual unsigned int orderInAlphaS () const
 Return the order in \(\alpha_S\) in which this matrix element is given.
 
virtual unsigned int orderInAlphaEW () const
 Return the order in \(\alpha_{EW}\) in which this matrix element is given.
 
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().
 
unsigned int fixedalphaS () const
 
double alphasfixedvalue () const
 
double scalemultiplier () const
 Return multiplier for scale.
 
virtual Selector< DiagramIndexdiagrams (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.
 
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.
 
- Public Member Functions inherited from Herwig::HwMEBase
 HwMEBase ()
 Default constructor.
 
virtual POWHEGType hasPOWHEGCorrection ()
 Has a POWHEG style correction.
 
virtual bool hasMECorrection ()
 Has an old fashioned ME correction.
 
virtual void initializeMECorrection (RealEmissionProcessPtr, double &, double &)
 Initialize the ME correction.
 
virtual RealEmissionProcessPtr applyHardMatrixElementCorrection (RealEmissionProcessPtr)
 Apply the hard matrix element correction to a given hard process or decay.
 
virtual bool softMatrixElementVeto (PPtr parent, PPtr progenitor, const bool &fs, const Energy &highestpT, const vector< tcPDPtr > &ids, const double &z, const Energy &scale, const Energy &pT)
 Apply the soft matrix element correction.
 
virtual RealEmissionProcessPtr generateHardest (RealEmissionProcessPtr, ShowerInteraction)
 Apply the POWHEG style correction.
 
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.
 
- Public Member Functions inherited from ThePEG::MEBase
virtual unsigned int orderInAlphaS () const=0
 
virtual unsigned int orderInAlphaEW () const=0
 
virtual double me2 () const=0
 
virtual Energy2 scale () const=0
 
virtual double alphaS () const
 
virtual double alphaEM () const
 
void setKinematics (tPPair in, const PVector &out)
 
virtual void setKinematics ()
 
virtual void constructVertex (tSubProPtr sub)
 
virtual void constructVertex (tSubProPtr sub, const ColourLines *cl)
 
virtual int nDim () const
 
virtual bool generateKinematics (const double *r)=0
 
virtual bool wantCMS () const
 
virtual bool headCuts () const
 
virtual bool ignoreCuts () const
 
virtual bool apply () const
 
virtual CrossSection dSigHatDR () const=0
 
virtual map< string, double > generateOptionalWeights ()
 
virtual bool haveX1X2 () const
 
virtual bool havePDFWeight1 () const
 
virtual bool havePDFWeight2 () const
 
virtual bool keepRandomNumbers () const
 
virtual void generateSubCollision (SubProcess &)
 
virtual void clearKinematics ()
 
virtual void getDiagrams () const=0
 
virtual bool noMirror () const
 
const DiagramVectordiagrams () const
 
virtual Selector< const ColourLines * > colourGeometries (tcDiagPtr diag) const=0
 
virtual const ColourLinesselectColourGeometry (tcDiagPtr diag) const
 
virtual Selector< DiagramIndexdiagrams (const DiagramVector &) const
 
virtual DiagramIndex diagram (const DiagramVector &) const
 
bool reweighted () const
 
double reWeight () const
 
double preWeight () const
 
void addReweighter (tReweightPtr rw)
 
void addPreweighter (tReweightPtr rw)
 
Ptr< Amplitude >::pointer amplitude () const
 
void amplitude (Ptr< Amplitude >::pointer amp)
 
Energy2 sHat () const
 
double preweight () const
 
virtual void flushCaches ()
 
virtual StdXCombPtr makeXComb (Energy newMaxEnergy, const cPDPair &inc, tEHPtr newEventHandler, tSubHdlPtr newSubProcessHandler, tPExtrPtr newExtractor, tCascHdlPtr newCKKW, const PBPair &newPartonBins, tCutsPtr newCuts, const DiagramVector &newDiagrams, bool mir, const PartonPairVec &allPBins, tStdXCombPtr newHead=tStdXCombPtr(), tMEPtr newME=tMEPtr())
 
virtual StdXCombPtr makeXComb (tStdXCombPtr newHead, const PBPair &newPartonBins, const DiagramVector &newDiagrams, tMEPtr newME=tMEPtr())
 
virtual void fillProjectors ()
 
virtual void setXComb (tStdXCombPtr)
 
const DVectormeInfo () const
 
void meInfo (const DVector &info) const
 
virtual int maxMultCKKW () const
 
virtual int minMultCKKW () const
 
virtual void maxMultCKKW (int mult)
 
virtual void minMultCKKW (int mult)
 
virtual void setVetoScales (tSubProPtr) const
 
virtual unsigned int orderInAlphaS () const=0
 
virtual unsigned int orderInAlphaEW () const=0
 
virtual double me2 () const=0
 
virtual Energy2 scale () const=0
 
virtual double alphaS () const
 
virtual double alphaEM () const
 
void setKinematics (tPPair in, const PVector &out)
 
virtual void setKinematics ()
 
virtual void constructVertex (tSubProPtr sub)
 
virtual void constructVertex (tSubProPtr sub, const ColourLines *cl)
 
virtual int nDim () const
 
virtual bool generateKinematics (const double *r)=0
 
virtual bool wantCMS () const
 
virtual bool headCuts () const
 
virtual bool ignoreCuts () const
 
virtual bool apply () const
 
virtual CrossSection dSigHatDR () const=0
 
virtual map< string, double > generateOptionalWeights ()
 
virtual bool haveX1X2 () const
 
virtual bool havePDFWeight1 () const
 
virtual bool havePDFWeight2 () const
 
virtual bool keepRandomNumbers () const
 
virtual void generateSubCollision (SubProcess &)
 
virtual void clearKinematics ()
 
virtual void getDiagrams () const=0
 
virtual bool noMirror () const
 
const DiagramVectordiagrams () const
 
virtual Selector< const ColourLines * > colourGeometries (tcDiagPtr diag) const=0
 
virtual const ColourLinesselectColourGeometry (tcDiagPtr diag) const
 
virtual Selector< DiagramIndexdiagrams (const DiagramVector &) const
 
virtual DiagramIndex diagram (const DiagramVector &) const
 
bool reweighted () const
 
double reWeight () const
 
double preWeight () const
 
void addReweighter (tReweightPtr rw)
 
void addPreweighter (tReweightPtr rw)
 
Ptr< Amplitude >::pointer amplitude () const
 
void amplitude (Ptr< Amplitude >::pointer amp)
 
Energy2 sHat () const
 
double preweight () const
 
virtual void flushCaches ()
 
virtual StdXCombPtr makeXComb (Energy newMaxEnergy, const cPDPair &inc, tEHPtr newEventHandler, tSubHdlPtr newSubProcessHandler, tPExtrPtr newExtractor, tCascHdlPtr newCKKW, const PBPair &newPartonBins, tCutsPtr newCuts, const DiagramVector &newDiagrams, bool mir, const PartonPairVec &allPBins, tStdXCombPtr newHead=tStdXCombPtr(), tMEPtr newME=tMEPtr())
 
virtual StdXCombPtr makeXComb (tStdXCombPtr newHead, const PBPair &newPartonBins, const DiagramVector &newDiagrams, tMEPtr newME=tMEPtr())
 
virtual void fillProjectors ()
 
virtual void setXComb (tStdXCombPtr)
 
const DVectormeInfo () const
 
void meInfo (const DVector &info) const
 
virtual int maxMultCKKW () const
 
virtual int minMultCKKW () const
 
virtual void maxMultCKKW (int mult)
 
virtual void minMultCKKW (int mult)
 
virtual void setVetoScales (tSubProPtr) const
 
void persistentOutput (PersistentOStream &os) const
 
void persistentInput (PersistentIStream &is, int version)
 
- Public Member Functions inherited from ThePEG::HandlerBaseT< UseRandom >
double rnd () const
 
double rnd (double xu) const
 
double rnd (double xl, double xu) const
 
bool rndbool () const
 
bool rndbool (double p) const
 
bool rndbool (double p1, double p2) const
 
int rndsign (double p1, double p2, double p3) const
 
int rnd2 (double p0, double p1) const
 
int rnd3 (double p0, double p1, double p2) const
 
int rnd4 (double p0, double p1, double p2, double p3) const
 
long irnd (long xu=2) const
 
long irnd (long xl, long xu) const
 
const StandardModelBaseSM () const
 
tSMPtr standardModel () const
 
- Public Member Functions inherited from ThePEG::Interfaced
virtual bool defaultInit ()
 
PPtr getParticle (PID) const
 
PDPtr getParticleData (PID) const
 
bool used () const
 
void useMe () const
 
tEGPtr generator () const
 
void persistentOutput (PersistentOStream &os) const
 
void persistentInput (PersistentIStream &is, int version)
 
PPtr getParticle (PID) const
 
PDPtr getParticleData (PID) const
 
bool used () const
 
void useMe () const
 
tEGPtr generator () const
 
- Public Member Functions inherited from ThePEG::InterfacedBase
string fullName () const
 
string name () const
 
string path () const
 
string comment () const
 
void setup (istream &is)
 
void update ()
 
void init ()
 
virtual bool preInitialize () const
 
void initrun ()
 
void finish ()
 
void touch ()
 
void reset ()
 
void clear ()
 
InitState state () const
 
bool locked () const
 
bool touched () const
 
virtual IBPtr fullclone () const
 
void persistentOutput (PersistentOStream &os) const
 
void persistentInput (PersistentIStream &is, int version)
 
virtual void debugme () const
 
void update ()
 
void init ()
 
virtual bool preInitialize () const
 
void initrun ()
 
void finish ()
 
void touch ()
 
void reset ()
 
void clear ()
 
InitState state () const
 
bool locked () const
 
bool touched () const
 
virtual IBPtr fullclone () const
 
- Public Member Functions inherited from ThePEG::Base
void debug () const
 
virtual void debugme () const
 
- Public Member Functions inherited from ThePEG::Pointer::ReferenceCounted
CounterType referenceCount () const
 
- Public Member Functions inherited from ThePEG::Named
 Named (const string &newName=string())
 
 Named (const Named &)=default
 
const string & name () const
 
bool operator== (const Named &other) const
 
bool operator< (const Named &other) const
 
- Public Member Functions inherited from ThePEG::LastXCombInfo< StandardXComb >
const XC & lastXComb () const
 
const XC & lastXComb () const
 
tXCPtr lastXCombPtr () const
 
tXCPtr lastXCombPtr () const
 
const XC & lastHeadXComb () const
 
const XC & lastHeadXComb () const
 
tXCPtr lastHeadXCombPtr () const
 
tXCPtr lastHeadXCombPtr () const
 
const EventHandlerlastEventHandler () const
 
const EventHandlerlastEventHandler () const
 
tPExtrPtr lastExtractor () const
 
tPExtrPtr lastExtractor () const
 
PDFT pdf (tcPPtr parton) const
 
PDFT pdf (tcPPtr parton) const
 
const CutslastCuts () const
 
const CutslastCuts () const
 
tCutsPtr lastCutsPtr () const
 
tCutsPtr lastCutsPtr () const
 
const PPairlastParticles () const
 
const PPairlastParticles () const
 
Energy2 lastS () const
 
Energy2 lastS () const
 
const PPairlastPartons () const
 
const PPairlastPartons () const
 
Energy2 lastSHat () const
 
Energy2 lastSHat () const
 
double lastTau () const
 
double lastTau () const
 
double lastY () const
 
double lastY () const
 
double lastP1 () const
 
double lastP1 () const
 
double lastP2 () const
 
double lastP2 () const
 
double lastL1 () const
 
double lastL1 () const
 
double lastL2 () const
 
double lastL2 () const
 
double lastX1 () const
 
double lastX1 () const
 
double lastX2 () const
 
double lastX2 () const
 
double lastE1 () const
 
double lastE1 () const
 
double lastE2 () const
 
double lastE2 () const
 
double lastFL1L2 () const
 
double lastFL1L2 () const
 
Energy2 lastScale () const
 
double lastAlphaS () const
 
double lastAlphaEM () const
 
const vector< Lorentz5Momentum > & meMomenta () const
 
double lastME2 () const
 
double lastPreweight () const
 
double jacobian () const
 
CrossSection lastMECrossSection () const
 
double lastMEPDFWeight () const
 
double lastMECouplings () const
 
tSubProPtr subProcess () const
 
const cPDVectormePartonData () const
 

Protected Member Functions

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.
 
PDPtr higgs () const
 Access to the higgs data.
 
void higgs (PDPtr in)
 Set the higgs data.
 
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.
 
- Protected Member Functions inherited from Herwig::HwMEBase
Energy2 tHat () const
 Return the \(\hat{t}\) of the last set phase space point.
 
Energy2 uHat () const
 Return the \(\hat{u}\) of the last set phase space point.
 
double phi () const
 Return the azimuth angle of the last set phase space point.
 
void tHat (Energy2 e2)
 Set the \(\hat{t}\) of the last set phase space point.
 
void uHat (Energy2 e2)
 Set the \(\hat{u}\) of the last set phase space point.
 
void phi (double phi)
 Set the azimuth angle of the last set phase space point.
 
void massOption (vector< unsigned int > iopt)
 Set the treatment of the outgoing masses.
 
void rescalingOption (unsigned int iopt)
 Rescaled momenta for the helicity ME.
 
bool rescaleMomenta (const vector< Lorentz5Momentum > &, const cPDVector &)
 rescale the momenta for the computation of the helicity matrix element
 
const vector< Lorentz5Momentum > & rescaledMomenta () const
 Access to the rescaled momenta.
 
bool generateMasses (vector< Energy > &masses, double &mjac, const double *r)
 Generate the masses of the particles.
 
virtual double getCosTheta (double cthmin, double cthmax, const double r)
 Used internally by generateKinematics, after calculating the limits on cos(theta).
 
- Protected Member Functions inherited from ThePEG::MEBase
virtual void doinit ()
 
virtual void doinitrun ()
 
void add (DiagPtr dp) const
 
vector< Lorentz5Momentum > & meMomenta ()
 
void lastME2 (double v) const
 
void lastPreweight (double w) const
 
void lastMECrossSection (CrossSection v) const
 
void lastMEPDFWeight (double v) const
 
void lastMECouplings (double v) const
 
void jacobian (double j)
 
void use (tcMEPtr other)
 
void useDiagrams (tcMEPtr other) const
 
- Protected Member Functions inherited from ThePEG::Interfaced
void reporeg (IBPtr object, string name) const
 
bool setDefaultReference (PtrT &ptr, string classname, string objectname)
 
 Interfaced (const string &newName)
 
 Interfaced (const Interfaced &i)
 
void setGenerator (tEGPtr generator)
 
- Protected Member Functions inherited from ThePEG::InterfacedBase
virtual void readSetup (istream &is)
 
virtual void doupdate ()
 
virtual void doinit ()
 
virtual void doinitrun ()
 
virtual void dofinish ()
 
virtual IVector getReferences ()
 
virtual void rebind (const TranslationMap &)
 
virtual IBPtr clone () const=0
 
 InterfacedBase (string newName)
 
 InterfacedBase (const InterfacedBase &i)
 
virtual void readSetup (istream &is)
 
virtual void doupdate ()
 
virtual void doinit ()
 
virtual void doinitrun ()
 
virtual void dofinish ()
 
virtual IVector getReferences ()
 
virtual void rebind (const TranslationMap &)
 
- Protected Member Functions inherited from ThePEG::Pointer::ReferenceCounted
 ReferenceCounted (const ReferenceCounted &)
 
ReferenceCountedoperator= (const ReferenceCounted &)
 
- Protected Member Functions inherited from ThePEG::Named
const Namedoperator= (const Named &other)
 
const string & name (const string &newName)
 

Helper functions for me2.

static ClassDescription< MEHiggsPairinitMEHiggsPair
 The static object used to initialize the description of this class.
 
PDPtr _higgs
 The higgs boson.
 
Energy _Wmass
 
Energy _topmass
 
Energy _bottommass
 
Energy _zmass
 
Energy _m1
 
Energy _m2
 
Energy _heavyHmass
 
Energy _heavyHwidth
 
double _yH
 
double _yh
 
double _ybH
 
double _ybh
 
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.
 
unsigned int _fixedalphaS
 
Energy _alphascale
 
double _alphasfixedvalue
 
Energy _basescale
 
double _scalemultiplier
 
unsigned int _fixedscale
 
Energy _mh
 On-shell mass for the higgs.
 
Energy _wh
 On-shell width for the higgs.
 
Energy _mW
 On-shell mass for the W.
 
double _cH
 
double _c6
 
double _cg1
 
double _cg2
 
double _ct1
 
double _ct2
 
double _cb1
 
double _cb2
 
Energy _EFTScale
 
MEHiggsPairoperator= (const MEHiggsPair &)=delete
 The assignment operator is private and must never be called.
 
virtual vector< Complexiniscal (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
 

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 void Init ()
 The standard Init function used to initialize the interfaces.
 

Additional Inherited Members

- Public Types inherited from Herwig::HwMEBase
enum  POWHEGType { No , ISR , FSR , Both }
 Virtual members to be overridden by inheriting classes which implement hard corrections. More...
 
- Public Types inherited from ThePEG::MEBase
typedef vector< DiagPtr > DiagramVector
 
typedef DiagramVector::size_type DiagramIndex
 
typedef vector< ReweightPtrReweightVector
 
- Public Types inherited from ThePEG::InterfacedBase
enum  InitState
 
- Public Types inherited from ThePEG::Pointer::ReferenceCounted
typedef unsigned int CounterType
 
- Public Types inherited from ThePEG::LastXCombInfo< StandardXComb >
typedef ThePEG::Ptr< XC >::pointer XCPtr
 
typedef ThePEG::Ptr< XC >::const_pointer cXCPtr
 
typedef ThePEG::Ptr< XC >::transient_pointer tXCPtr
 
typedef ThePEG::Ptr< XC >::transient_const_pointer tcXCPtr
 
- Static Public Member Functions inherited from Herwig::HwMEBase
static void Init ()
 The standard Init function used to initialize the interfaces.
 
- Static Public Member Functions inherited from ThePEG::MEBase
static void Init ()
 
- Static Public Member Functions inherited from ThePEG::HandlerBase
static void Init ()
 
- Static Public Member Functions inherited from ThePEG::Interfaced
static void Init ()
 
- Static Public Member Functions inherited from ThePEG::InterfacedBase
static void Init ()
 
- Static Public Member Functions inherited from ThePEG::Base
static void Init ()
 
- Public Attributes inherited from ThePEG::InterfacedBase
 initializing
 
 uninitialized
 
 initialized
 
 runready
 
- Public Attributes inherited from ThePEG::Pointer::ReferenceCounted
const unsigned long uniqueId
 
- Static Protected Member Functions inherited from ThePEG::Interfaced
static void registerRepository (IBPtr)
 
static void registerRepository (IBPtr, string newName)
 
- Protected Attributes inherited from ThePEG::LastXCombInfo< StandardXComb >
XCPtr theLastXComb
 

Detailed Description

The MEHiggsPair class implements the matrix elements for HiggsPairian \(2\to2\) scattering process.

Definition at line 63 of file MEHiggsPair.h.

Member Function Documentation

◆ alphasfixedvalue()

double Herwig::MEHiggsPair::alphasfixedvalue ( ) const
inline

Definition at line 117 of file MEHiggsPair.h.

◆ clone()

virtual IBPtr Herwig::MEHiggsPair::clone ( ) const
protectedvirtual

Make a simple clone of this object.

Returns
a pointer to the new object.

Implements ThePEG::InterfacedBase.

◆ colourGeometries()

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.

Parameters
diagthe diagram chosen.
Returns
the possible colour geometries weighted by their relative probabilities.

Implements ThePEG::MEBase.

◆ diagrams()

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.

Parameters
dvthe diagrams to be weighted.
Returns
a Selector relating the given diagrams to their weights.

Reimplemented from ThePEG::MEBase.

◆ doinit()

virtual void Herwig::MEHiggsPair::doinit ( )
protectedvirtual

Initialize this object after the setup phase before saving an EventGenerator to disk.

Exceptions
InitExceptionif object could not be initialized properly.

Reimplemented from ThePEG::MEBase.

◆ dSigHatDR()

virtual CrossSection Herwig::MEHiggsPair::dSigHatDR ( ) const
virtual

Return the matrix element squared differential in the variables given by the last call to generateKinematics().

Reimplemented from Herwig::HwMEBase.

◆ fixedalphaS()

unsigned int Herwig::MEHiggsPair::fixedalphaS ( ) const
inline

Definition at line 112 of file MEHiggsPair.h.

◆ fullclone()

virtual IBPtr Herwig::MEHiggsPair::fullclone ( ) const
protectedvirtual

Make a clone of this object, possibly modifying the cloned object to make it sane.

Returns
a pointer to the new object.

Reimplemented from ThePEG::InterfacedBase.

◆ generateKinematics()

virtual bool Herwig::MEHiggsPair::generateKinematics ( const double *  r)
virtual

Generate internal degrees of freedom.

Reimplemented from Herwig::HwMEBase.

◆ getDiagrams()

virtual void Herwig::MEHiggsPair::getDiagrams ( ) const
virtual

Add all possible diagrams with the add() function.

Implements ThePEG::MEBase.

◆ getReferences()

virtual IVector Herwig::MEHiggsPair::getReferences ( )
protectedvirtual

Return a vector of all pointers to Interfaced objects used in this object.

Returns
a vector of pointers.

Reimplemented from ThePEG::InterfacedBase.

◆ higgs() [1/2]

PDPtr Herwig::MEHiggsPair::higgs ( ) const
inlineprotected

Access to the higgs data.

Definition at line 200 of file MEHiggsPair.h.

References _higgs.

◆ higgs() [2/2]

void Herwig::MEHiggsPair::higgs ( PDPtr  in)
inlineprotected

Set the higgs data.

Definition at line 205 of file MEHiggsPair.h.

References _higgs.

◆ Init()

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.

◆ me2()

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.

Returns
the matrix element scaled with sHat() to give a dimensionless number.

Implements ThePEG::MEBase.

◆ nDim()

virtual int Herwig::MEHiggsPair::nDim ( ) const
virtual

The number of internal degrees of freedom used in the matrix element.

Reimplemented from Herwig::HwMEBase.

◆ operator=()

MEHiggsPair & Herwig::MEHiggsPair::operator= ( const MEHiggsPair )
privatedelete

The assignment operator is private and must never be called.

In fact, it should not even be implemented.

◆ orderInAlphaEW()

virtual unsigned int Herwig::MEHiggsPair::orderInAlphaEW ( ) const
inlinevirtual

Return the order in \(\alpha_{EW}\) in which this matrix element is given.

Implements ThePEG::MEBase.

Definition at line 84 of file MEHiggsPair.h.

◆ orderInAlphaS()

virtual unsigned int Herwig::MEHiggsPair::orderInAlphaS ( ) const
inlinevirtual

Return the order in \(\alpha_S\) in which this matrix element is given.

Implements ThePEG::MEBase.

Definition at line 78 of file MEHiggsPair.h.

◆ persistentInput()

void Herwig::MEHiggsPair::persistentInput ( PersistentIStream is,
int  version 
)

Function used to read in object persistently.

Parameters
isthe persistent input stream read from.
versionthe version number of the object when written.

◆ persistentOutput()

void Herwig::MEHiggsPair::persistentOutput ( PersistentOStream os) const

Function used to write out object persistently.

Parameters
osthe persistent output stream written to.

◆ rebind()

virtual void Herwig::MEHiggsPair::rebind ( const TranslationMap trans)
protectedvirtual

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.

Parameters
transa TranslationMap relating the original objects to their respective clones.
Exceptions
RebindExceptionif no cloned object was found for a given pointer.

Reimplemented from ThePEG::InterfacedBase.

◆ scale()

virtual Energy2 Herwig::MEHiggsPair::scale ( ) const
virtual

Return the scale associated with the last set phase space point.

Implements ThePEG::MEBase.

◆ scalemultiplier()

double Herwig::MEHiggsPair::scalemultiplier ( ) const
inline

Return multiplier for scale.

Definition at line 122 of file MEHiggsPair.h.

◆ setKinematics()

virtual void Herwig::MEHiggsPair::setKinematics ( )
virtual

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.

Reimplemented from Herwig::HwMEBase.

Member Data Documentation

◆ _alphascale

Energy Herwig::MEHiggsPair::_alphascale
private

Definition at line 368 of file MEHiggsPair.h.

◆ _alphasfixedvalue

double Herwig::MEHiggsPair::_alphasfixedvalue
private

Definition at line 374 of file MEHiggsPair.h.

◆ _basescale

Energy Herwig::MEHiggsPair::_basescale
private

Definition at line 379 of file MEHiggsPair.h.

◆ _bottommass

Energy Herwig::MEHiggsPair::_bottommass
private

Definition at line 293 of file MEHiggsPair.h.

◆ _c6

double Herwig::MEHiggsPair::_c6
private

Definition at line 418 of file MEHiggsPair.h.

◆ _cb1

double Herwig::MEHiggsPair::_cb1
private

Definition at line 444 of file MEHiggsPair.h.

◆ _cb2

double Herwig::MEHiggsPair::_cb2
private

Definition at line 449 of file MEHiggsPair.h.

◆ _cg1

double Herwig::MEHiggsPair::_cg1
private

Definition at line 423 of file MEHiggsPair.h.

◆ _cg2

double Herwig::MEHiggsPair::_cg2
private

Definition at line 428 of file MEHiggsPair.h.

◆ _cH

double Herwig::MEHiggsPair::_cH
private

Definition at line 413 of file MEHiggsPair.h.

◆ _ct1

double Herwig::MEHiggsPair::_ct1
private

Definition at line 433 of file MEHiggsPair.h.

◆ _ct2

double Herwig::MEHiggsPair::_ct2
private

Definition at line 438 of file MEHiggsPair.h.

◆ _EFTScale

Energy Herwig::MEHiggsPair::_EFTScale
private

Definition at line 454 of file MEHiggsPair.h.

◆ _fixedalphaS

unsigned int Herwig::MEHiggsPair::_fixedalphaS
private

Definition at line 363 of file MEHiggsPair.h.

◆ _fixedscale

unsigned int Herwig::MEHiggsPair::_fixedscale
private

Definition at line 389 of file MEHiggsPair.h.

◆ _heavyHmass

Energy Herwig::MEHiggsPair::_heavyHmass
private

Definition at line 310 of file MEHiggsPair.h.

◆ _heavyHwidth

Energy Herwig::MEHiggsPair::_heavyHwidth
private

Definition at line 316 of file MEHiggsPair.h.

◆ _hhHcoupling

double Herwig::MEHiggsPair::_hhHcoupling
private

multiplier for the hhH triple-coupling

Definition at line 353 of file MEHiggsPair.h.

◆ _higgs

PDPtr Herwig::MEHiggsPair::_higgs
private

The higgs boson.

Definition at line 277 of file MEHiggsPair.h.

Referenced by higgs().

◆ _hmass

GenericMassGeneratorPtr Herwig::MEHiggsPair::_hmass
private

The mass generator for the Higgs.

Definition at line 343 of file MEHiggsPair.h.

◆ _m1

Energy Herwig::MEHiggsPair::_m1
private

Definition at line 304 of file MEHiggsPair.h.

◆ _m2

Energy Herwig::MEHiggsPair::_m2
private

Definition at line 304 of file MEHiggsPair.h.

◆ _mh

Energy Herwig::MEHiggsPair::_mh
private

On-shell mass for the higgs.

Definition at line 395 of file MEHiggsPair.h.

◆ _mW

Energy Herwig::MEHiggsPair::_mW
private

On-shell mass for the W.

Definition at line 406 of file MEHiggsPair.h.

◆ _process

unsigned int Herwig::MEHiggsPair::_process
private

Processes to include.

Definition at line 358 of file MEHiggsPair.h.

◆ _scalemultiplier

double Herwig::MEHiggsPair::_scalemultiplier
private

Definition at line 384 of file MEHiggsPair.h.

◆ _selfcoupling

double Herwig::MEHiggsPair::_selfcoupling
private

multiplier for the SM triple-coupling

Definition at line 348 of file MEHiggsPair.h.

◆ _topmass

Energy Herwig::MEHiggsPair::_topmass
private

Definition at line 288 of file MEHiggsPair.h.

◆ _wh

Energy Herwig::MEHiggsPair::_wh
private

On-shell width for the higgs.

Definition at line 401 of file MEHiggsPair.h.

◆ _Wmass

Energy Herwig::MEHiggsPair::_Wmass
private

Definition at line 282 of file MEHiggsPair.h.

◆ _ybH

double Herwig::MEHiggsPair::_ybH
private

Definition at line 331 of file MEHiggsPair.h.

◆ _ybh

double Herwig::MEHiggsPair::_ybh
private

Definition at line 336 of file MEHiggsPair.h.

◆ _yH

double Herwig::MEHiggsPair::_yH
private

Definition at line 321 of file MEHiggsPair.h.

◆ _yh

double Herwig::MEHiggsPair::_yh
private

Definition at line 326 of file MEHiggsPair.h.

◆ _zmass

Energy Herwig::MEHiggsPair::_zmass
private

Definition at line 298 of file MEHiggsPair.h.

◆ initMEHiggsPair

ClassDescription<MEHiggsPair> Herwig::MEHiggsPair::initMEHiggsPair
staticprivate

The static object used to initialize the description of this class.

Indicates that this is a concrete class with persistent data.

Definition at line 265 of file MEHiggsPair.h.


The documentation for this class was generated from the following file: