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Herwig  7.1.4

The MEPP2HiggsJet class implements the matrix element for Higgs+jet production. More...

#include <MEPP2HiggsJet.h>

Inheritance diagram for Herwig::MEPP2HiggsJet:

Public Member Functions

 MEPP2HiggsJet ()
 The default constructor.
 
Virtual functions required by the MEBase class.
virtual CrossSection dSigHatDR () const
 Return the matrix element for the kinematical configuation previously provided by the last call to setKinematics(). More...
 
virtual int nDim () const
 The number of internal degreed of freedom used in the matrix element.
 
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 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. More...
 
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< DiagramIndexdiagrams (const DiagramVector &dv) const
 Get diagram selector. More...
 
virtual Selector< const ColourLines * > colourGeometries (tcDiagPtr diag) const
 Return a Selector with possible colour geometries for the selected diagram weighted by their relative probabilities. More...
 
virtual bool generateKinematics (const double *r)
 Generate internal degrees of freedom given nDim() uniform random numbers in the interval $ ]0,1[ $. More...
 
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. More...
 
void persistentInput (PersistentIStream &is, int version)
 Function used to read in object persistently. More...
 
- Public Member Functions inherited from ThePEG::ME2to2Base
virtual double getCosTheta (double cthmin, double cthmax, const double *r)
 
int scaleChoice () const
 
virtual void setKinematics ()
 
Energy2 tHat () const
 
Energy2 uHat () const
 
double phi () const
 
void persistentOutput (PersistentOStream &os) const
 
void persistentInput (PersistentIStream &is, int version)
 
virtual void setKinematics ()
 
Energy2 tHat () const
 
Energy2 uHat () const
 
double phi () const
 
void persistentOutput (PersistentOStream &os) const
 
void persistentInput (PersistentIStream &is, int version)
 
- Public Member Functions inherited from ThePEG::MEBase
virtual double alphaS () const
 
virtual double alphaEM () const
 
void setKinematics (tPPair in, const PVector &out)
 
virtual void constructVertex (tSubProPtr sub, const ColourLines *cl)
 
virtual bool wantCMS () const
 
virtual bool headCuts () const
 
virtual bool ignoreCuts () const
 
virtual bool apply () const
 
virtual bool haveX1X2 () const
 
virtual bool havePDFWeight1 () const
 
virtual bool havePDFWeight2 () const
 
virtual bool keepRandomNumbers () const
 
virtual void generateSubCollision (SubProcess &)
 
virtual void clearKinematics ()
 
virtual bool noMirror () const
 
const DiagramVectordiagrams () const
 
virtual const ColourLinesselectColourGeometry (tcDiagPtr diag) 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)
 
virtual double alphaS () const
 
virtual double alphaEM () const
 
void setKinematics (tPPair in, const PVector &out)
 
virtual void constructVertex (tSubProPtr sub, const ColourLines *cl)
 
virtual bool wantCMS () const
 
virtual bool headCuts () const
 
virtual bool ignoreCuts () const
 
virtual bool apply () const
 
virtual bool haveX1X2 () const
 
virtual bool havePDFWeight1 () const
 
virtual bool havePDFWeight2 () const
 
virtual bool keepRandomNumbers () const
 
virtual void generateSubCollision (SubProcess &)
 
virtual void clearKinematics ()
 
virtual bool noMirror () const
 
const DiagramVectordiagrams () const
 
virtual const ColourLinesselectColourGeometry (tcDiagPtr diag) 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 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 StandardModelBase & SM () 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
 
void persistentOutput (PersistentOStream &os) const
 
void persistentInput (PersistentIStream &is, int version)
 
- Public Member Functions inherited from ThePEG::InterfacedBase
string fullName () const
 
string name () const
 
string path () const
 
string comment () const
 
void setup (istream &is)
 
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
 
void persistentOutput (PersistentOStream &os) const
 
void persistentInput (PersistentIStream &is, int version)
 
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
 
void persistentOutput (PersistentOStream &os) const
 
void persistentInput (PersistentIStream &is, int version)
 
- Public Member Functions inherited from ThePEG::Base
void debug () const
 
- Public Member Functions inherited from ThePEG::Pointer::ReferenceCounted
CounterType referenceCount () const
 
- Public Member Functions inherited from ThePEG::Named
 Named (const string &newName=string())
 
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 StandardXComblastXComb () const
 
const StandardXComblastXComb () const
 
tXCPtr lastXCombPtr () const
 
tXCPtr lastXCombPtr () const
 
const StandardXComblastHeadXComb () const
 
const StandardXComblastHeadXComb () 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
 
Energy2 lastScale () const
 
double lastAlphaS () const
 
double lastAlphaS () const
 
double lastAlphaEM () const
 
double lastAlphaEM () const
 
const vector< Lorentz5Momentum > & meMomenta () const
 
const vector< Lorentz5Momentum > & meMomenta () const
 
double lastME2 () const
 
double lastME2 () const
 
double lastPreweight () const
 
double lastPreweight () const
 
double jacobian () const
 
double jacobian () const
 
CrossSection lastMECrossSection () const
 
CrossSection lastMECrossSection () const
 
double lastMEPDFWeight () const
 
double lastMEPDFWeight () const
 
double lastMECouplings () const
 
double lastMECouplings () const
 
tSubProPtr subProcess () const
 
tSubProPtr subProcess () const
 
const cPDVectormePartonData () const
 
const cPDVectormePartonData () const
 

Static Public Member Functions

static void Init ()
 The standard Init function used to initialize the interfaces. More...
 
- Static Public Member Functions inherited from ThePEG::ME2to2Base
static void Init ()
 
- 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 ()
 

Protected Member Functions

Clone Methods.
virtual IBPtr clone () const
 Make a simple clone of this object. More...
 
virtual IBPtr fullclone () const
 Make a clone of this object, possibly modifying the cloned object to make it sane. More...
 
Standard Interfaced functions.
virtual void doinit ()
 Initialize this object after the setup phase before saving an EventGenerator to disk. More...
 
- Protected Member Functions inherited from ThePEG::ME2to2Base
void tHat (Energy2 e2)
 
void uHat (Energy2 e2)
 
void phi (double phi)
 
void tHat (Energy2 e2)
 
void uHat (Energy2 e2)
 
void phi (double phi)
 
- Protected Member Functions inherited from ThePEG::MEBase
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
 
virtual void doinitrun ()
 
virtual void doinitrun ()
 
- 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
 InterfacedBase (string newName)
 
 InterfacedBase (const InterfacedBase &i)
 
virtual void readSetup (istream &is)
 
virtual void doupdate ()
 
virtual void dofinish ()
 
virtual IVector getReferences ()
 
virtual void rebind (const TranslationMap &)
 
virtual void readSetup (istream &is)
 
virtual void doupdate ()
 
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 &)
 
 ReferenceCounted (const ReferenceCounted &)
 
ReferenceCountedoperator= (const ReferenceCounted &)
 
- Protected Member Functions inherited from ThePEG::Named
const Namedoperator= (const Named &other)
 
const string & name (const string &newName)
 

Private Member Functions

MEPP2HiggsJetoperator= (const MEPP2HiggsJet &)
 The assignment operator is private and must never be called. More...
 
double qqbarME (vector< SpinorWaveFunction > &fin, vector< SpinorBarWaveFunction > &ain, ScalarWaveFunction &hout, vector< VectorWaveFunction > &gout, bool me) const
 Members to return the matrix elements for the different subprocesses. More...
 
double qgME (vector< SpinorWaveFunction > &fin, vector< VectorWaveFunction > &gin, ScalarWaveFunction &hout, vector< SpinorBarWaveFunction > &fout, bool me) const
 Matrix element for $qg\to Hq$. More...
 
double qbargME (vector< SpinorBarWaveFunction > &fin, vector< VectorWaveFunction > &gin, ScalarWaveFunction &hout, vector< SpinorWaveFunction > &fout, bool me) const
 Matrix element for $\bar{q}g\to H\bar{q}$. More...
 
double ggME (vector< VectorWaveFunction > g1, vector< VectorWaveFunction > g2, ScalarWaveFunction &hout, vector< VectorWaveFunction > g4, bool me) const
 Matrix element for $gg\to Hg$. More...
 
Complex W1 (Energy2 s, Energy2 mf2) const
 Members to calculate the functions for the loop diagrams. More...
 
Complex W2 (Energy2 s, Energy2 mf2) const
 The $W_2(s)$ function of NPB297 (1988) 221-243. More...
 
Complex W3 (Energy2 s, Energy2 t, Energy2 u, Energy2 v, Energy2 mf2) const
 The $W_3(s,t,u,v)$ function of NPB297 (1988) 221-243. More...
 
Complex I3 (Energy2 s, Energy2 t, Energy2 u, Energy2 v, Energy2 mf2) const
 The $I_3(s,t,u,v)$ function of NPB297 (1988) 221-243. More...
 
Complex b2 (Energy2 s, Energy2 t, Energy2 u, Energy2 mf2) const
 The $b_2(s,t,u)$ function of NPB297 (1988) 221-243. More...
 
Complex b4 (Energy2 s, Energy2 t, Energy2 u, Energy2 mf2) const
 The $b_2(s,t,u)$ function of NPB297 (1988) 221-243. More...
 
Complex A2 (Energy2 s, Energy2 t, Energy2 u, Energy2 mf2) const
 The $A_2(s,t,u)$ function of NPB297 (1988) 221-243. More...
 
Complex A4 (Energy2 s, Energy2 t, Energy2 u, Energy2 mf2) const
 The $A_4(s,t,u)$ function of NPB297 (1988) 221-243. More...
 

Private Attributes

unsigned int _shapeopt
 Defines the Higgs resonance shape.
 
unsigned int _maxflavour
 Maximum PDG code of the quarks allowed.
 
unsigned int _process
 Option for which processes to include.
 
ProductionMatrixElement _me
 Matrix element for spin correlations.
 
int _minloop
 Minimum flavour of quarks to include in the loops.
 
int _maxloop
 Maximum flavour of quarks to include in the loops.
 
unsigned int _massopt
 Option for treatment of the fermion loops.
 
Energy _mh
 On-shell mass for the higgs.
 
Energy _wh
 On-shell width for the higgs.
 
GenericMassGeneratorPtr _hmass
 The mass generator for the Higgs.
 
double _diagwgt [3]
 Storage of the diagram weights for the $gg\to Hg$ subprocess.
 
Complex _bi [5]
 Storage of the loop functions. More...
 
Complex _ci [8]
 C functions.
 
Complex _di [4]
 D functions.
 

Static Private Attributes

static ClassDescription< MEPP2HiggsJetinitMEPP2HiggsJet
 The static object used to initialize the description of this class. More...
 
static const Complex _epsi
 Small complex number to regularize some integrals.
 

Additional Inherited Members

- 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< StandardXComb >::pointer XCPtr
 
typedef ThePEG::Ptr< StandardXComb >::const_pointer cXCPtr
 
typedef ThePEG::Ptr< StandardXComb >::transient_pointer tXCPtr
 
typedef ThePEG::Ptr< StandardXComb >::transient_const_pointer tcXCPtr
 
- 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::ME2to2Base
static Switch< ME2to2Base, int > & interfaceScaleChoice ()
 
- 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 MEPP2HiggsJet class implements the matrix element for Higgs+jet production.

See also
The interfaces defined for MEPP2HiggsJet.

Definition at line 35 of file MEPP2HiggsJet.h.

Member Function Documentation

◆ A2()

Complex Herwig::MEPP2HiggsJet::A2 ( Energy2  s,
Energy2  t,
Energy2  u,
Energy2  mf2 
) const
inlineprivate

The $A_2(s,t,u)$ function of NPB297 (1988) 221-243.

Parameters
sThe $s$ invariant
tThe $t$ invariant
uThe $u$ invariant
mf2The fermion mass squared.

Definition at line 340 of file MEPP2HiggsJet.h.

◆ A4()

Complex Herwig::MEPP2HiggsJet::A4 ( Energy2  s,
Energy2  t,
Energy2  u,
Energy2  mf2 
) const
inlineprivate

The $A_4(s,t,u)$ function of NPB297 (1988) 221-243.

Parameters
sThe $s$ invariant
tThe $t$ invariant
uThe $u$ invariant
mf2The fermion mass squared.

Definition at line 351 of file MEPP2HiggsJet.h.

◆ b2()

Complex Herwig::MEPP2HiggsJet::b2 ( Energy2  s,
Energy2  t,
Energy2  u,
Energy2  mf2 
) const
inlineprivate

The $b_2(s,t,u)$ function of NPB297 (1988) 221-243.

Parameters
sThe $s$ invariant
tThe $t$ invariant
uThe $u$ invariant
mf2The fermion mass squared.

Definition at line 310 of file MEPP2HiggsJet.h.

References sqr().

◆ b4()

Complex Herwig::MEPP2HiggsJet::b4 ( Energy2  s,
Energy2  t,
Energy2  u,
Energy2  mf2 
) const
inlineprivate

The $b_2(s,t,u)$ function of NPB297 (1988) 221-243.

Parameters
sThe $s$ invariant
tThe $t$ invariant
uThe $u$ invariant
mf2The fermion mass squared.

Definition at line 327 of file MEPP2HiggsJet.h.

◆ clone()

virtual IBPtr Herwig::MEPP2HiggsJet::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::MEPP2HiggsJet::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::MEPP2HiggsJet::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::MEPP2HiggsJet::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::MEPP2HiggsJet::dSigHatDR ( ) const
virtual

Return the matrix element for the kinematical configuation previously provided by the last call to setKinematics().

Uses me().

Reimplemented from ThePEG::ME2to2Base.

◆ fullclone()

virtual IBPtr Herwig::MEPP2HiggsJet::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::MEPP2HiggsJet::generateKinematics ( const double *  r)
virtual

Generate internal degrees of freedom given nDim() uniform random numbers in the interval $ ]0,1[ $.

To help the phase space generator, the dSigHatDR should be a smooth function of these numbers, although this is not strictly necessary.

Parameters
ra pointer to the first of nDim() consecutive random numbers.
Returns
true if the generation succeeded, otherwise false.

Reimplemented from ThePEG::ME2to2Base.

◆ ggME()

double Herwig::MEPP2HiggsJet::ggME ( vector< VectorWaveFunction g1,
vector< VectorWaveFunction g2,
ScalarWaveFunction hout,
vector< VectorWaveFunction g4,
bool  me 
) const
private

Matrix element for $gg\to Hg$.

Parameters
g1Polarization vectors for the first incoming gluon
g2Polarization vectors for the second incoming gluon
houtWavefunction for the outgoing higgs
g4Polarization vectors for the outgoing gluon
meWhether or not to calculate the matrix element for spin correlations

◆ I3()

Complex Herwig::MEPP2HiggsJet::I3 ( Energy2  s,
Energy2  t,
Energy2  u,
Energy2  v,
Energy2  mf2 
) const
inlineprivate

The $I_3(s,t,u,v)$ function of NPB297 (1988) 221-243.

Parameters
sThe $s$ invariant
tThe $t$ invariant
uThe $u$ invariant
vThe $v$ invariant
mf2The fermion mass squared

Definition at line 291 of file MEPP2HiggsJet.h.

References Herwig::Math::Li2(), sqrt(), and ZERO.

◆ Init()

static void Herwig::MEPP2HiggsJet::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::MEPP2HiggsJet::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.

◆ operator=()

MEPP2HiggsJet& Herwig::MEPP2HiggsJet::operator= ( const MEPP2HiggsJet )
private

The assignment operator is private and must never be called.

In fact, it should not even be implemented.

◆ persistentInput()

void Herwig::MEPP2HiggsJet::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::MEPP2HiggsJet::persistentOutput ( PersistentOStream os) const

Function used to write out object persistently.

Parameters
osthe persistent output stream written to.

◆ qbargME()

double Herwig::MEPP2HiggsJet::qbargME ( vector< SpinorBarWaveFunction > &  fin,
vector< VectorWaveFunction > &  gin,
ScalarWaveFunction hout,
vector< SpinorWaveFunction > &  fout,
bool  me 
) const
private

Matrix element for $\bar{q}g\to H\bar{q}$.

Parameters
finSpinors for incoming antiquark
ginPolarization vectors for the incoming gluon
houtWavefunction for the outgoing higgs
foutSpinors for outgoing antiquark
meWhether or not to calculate the matrix element for spin correlations

◆ qgME()

double Herwig::MEPP2HiggsJet::qgME ( vector< SpinorWaveFunction > &  fin,
vector< VectorWaveFunction > &  gin,
ScalarWaveFunction hout,
vector< SpinorBarWaveFunction > &  fout,
bool  me 
) const
private

Matrix element for $qg\to Hq$.

Parameters
finSpinors for incoming quark
ginPolarization vectors for the incoming gluon
houtWavefunction for the outgoing higgs
foutSpinors for outgoing quark
meWhether or not to calculate the matrix element for spin correlations

◆ qqbarME()

double Herwig::MEPP2HiggsJet::qqbarME ( vector< SpinorWaveFunction > &  fin,
vector< SpinorBarWaveFunction > &  ain,
ScalarWaveFunction hout,
vector< VectorWaveFunction > &  gout,
bool  me 
) const
private

Members to return the matrix elements for the different subprocesses.

Matrix element for $q\bar{q}\to Hg$.

Parameters
finSpinors for incoming quark
ainSpinors for incoming antiquark
houtWavefunction for the outgoing higgs
goutPolarization vectors for the outgoing gluon
meWhether or not to calculate the matrix element for spin correlations

◆ W1()

Complex Herwig::MEPP2HiggsJet::W1 ( Energy2  s,
Energy2  mf2 
) const
inlineprivate

Members to calculate the functions for the loop diagrams.

The $W_1(s)$ function of NPB297 (1988) 221-243.

Parameters
sThe invariant
mf2The fermion mass squared

Definition at line 250 of file MEPP2HiggsJet.h.

References sqrt(), and ZERO.

◆ W2()

Complex Herwig::MEPP2HiggsJet::W2 ( Energy2  s,
Energy2  mf2 
) const
inlineprivate

The $W_2(s)$ function of NPB297 (1988) 221-243.

Parameters
sThe invariant
mf2The fermion mass squared

Definition at line 263 of file MEPP2HiggsJet.h.

References sqr(), sqrt(), and ZERO.

◆ W3()

Complex Herwig::MEPP2HiggsJet::W3 ( Energy2  s,
Energy2  t,
Energy2  u,
Energy2  v,
Energy2  mf2 
) const
inlineprivate

The $W_3(s,t,u,v)$ function of NPB297 (1988) 221-243.

Parameters
sThe $s$ invariant
tThe $t$ invariant
uThe $u$ invariant
vThe $u$ invariant
mf2The fermion mass squared.

Definition at line 279 of file MEPP2HiggsJet.h.

Member Data Documentation

◆ _bi

Complex Herwig::MEPP2HiggsJet::_bi[5]
mutableprivate

Storage of the loop functions.

B functions

Definition at line 434 of file MEPP2HiggsJet.h.

◆ initMEPP2HiggsJet

ClassDescription<MEPP2HiggsJet> Herwig::MEPP2HiggsJet::initMEPP2HiggsJet
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 362 of file MEPP2HiggsJet.h.


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