Herwig
7.2.1
|
The MEPP2HiggsVBF class provides the matrix elements for the production of the Higgs boson via the vector boson fusion mechanism in hadron collisions. More...
#include <MEPP2HiggsVBF.h>
Classes | |
struct | tChannelPair |
Struct to contain the hadronic system. More... | |
Public Member Functions | |
MEPP2HiggsVBF () | |
The default constructor. | |
Virtual functions required by the MEBase class. | |
virtual void | getDiagrams () const |
Add all possible diagrams with the add() function. | |
virtual POWHEGType | hasPOWHEGCorrection () |
Virtual members to be overridden by inheriting classes which implement hard corrections. More... | |
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. More... | |
virtual RealEmissionProcessPtr | generateHardest (RealEmissionProcessPtr, ShowerInteraction) |
Apply the POWHEG style correction. | |
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 Herwig::MEfftoffH | |
MEfftoffH () | |
The default constructor. | |
virtual unsigned int | orderInAlphaS () const |
Return the order in in which this matrix element is given. | |
virtual unsigned int | orderInAlphaEW () const |
Return the order in 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 | 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. More... | |
virtual int | nDim () const |
The number of internal degrees of freedom used in the matrix element. | |
virtual bool | generateKinematics (const double *r) |
Generate internal degrees of freedom given nDim() uniform random numbers in the interval . More... | |
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. 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 void | constructVertex (tSubProPtr) |
Construct the vertex of spin correlations. | |
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 Herwig::HwMEBase | |
HwMEBase () | |
Default constructor. | |
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::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 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 bool | noMirror () const |
const DiagramVector & | diagrams () const |
virtual const ColourLines & | selectColourGeometry (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 DVector & | meInfo () 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 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 bool | noMirror () const |
const DiagramVector & | diagrams () const |
virtual const ColourLines & | selectColourGeometry (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 DVector & | meInfo () 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()) | |
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 StandardXComb & | lastXComb () const |
const StandardXComb & | lastXComb () const |
tXCPtr | lastXCombPtr () const |
tXCPtr | lastXCombPtr () const |
const StandardXComb & | lastHeadXComb () const |
const StandardXComb & | lastHeadXComb () const |
tXCPtr | lastHeadXCombPtr () const |
tXCPtr | lastHeadXCombPtr () const |
const EventHandler & | lastEventHandler () const |
const EventHandler & | lastEventHandler () const |
tPExtrPtr | lastExtractor () const |
tPExtrPtr | lastExtractor () const |
PDFT | pdf (tcPPtr parton) const |
PDFT | pdf (tcPPtr parton) const |
const Cuts & | lastCuts () const |
const Cuts & | lastCuts () const |
tCutsPtr | lastCutsPtr () const |
tCutsPtr | lastCutsPtr () const |
const PPair & | lastParticles () const |
const PPair & | lastParticles () const |
Energy2 | lastS () const |
Energy2 | lastS () const |
const PPair & | lastPartons () const |
const PPair & | lastPartons () 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 cPDVector & | mePartonData () const |
const cPDVector & | mePartonData () const |
Static Public Member Functions | |
static void | Init () |
The standard Init function used to initialize the interfaces. More... | |
Static Public Member Functions inherited from Herwig::MEfftoffH | |
static void | Init () |
The standard Init function used to initialize the interfaces. More... | |
Static Public Member Functions inherited from Herwig::HwMEBase | |
static void | Init () |
The standard Init function used to initialize the interfaces. More... | |
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 | |
void | generateCompton (unsigned int system) |
Generate the hardest emission in the POWHEG approach. More... | |
void | generateBGF (unsigned int system) |
Generate a BGF process. | |
double | comptonME (unsigned int system, double xT, double xp, double zp, double phi) |
Matrix element piece for the Compton process. | |
double | BGFME (unsigned int system, double xT, double xp, double zp, double phi) |
Matrix element piece for the Compton process. | |
Energy4 | loMatrixElement (const Lorentz5Momentum &p1, const Lorentz5Momentum &p2, const Lorentz5Momentum &q1, const Lorentz5Momentum &q2, double G1, double G2) const |
Leading order matrix element. | |
double | generateComptonPoint (double &xp, double &zp) |
Generate the hard emission in the old-fashioned matrix element correction approach. More... | |
double | generateBGFPoint (double &xp, double &zp) |
Generate the values of and . More... | |
vector< double > | ComptonME (double xp, double x2, double xperp, LorentzVector< double > l, LorentzVector< double > m) |
Return the coefficients for the matrix element piece for the QCD compton case. More... | |
vector< double > | BGFME (double xp, double x2, double x3, double xperp, LorentzVector< double > l, LorentzVector< double > m) |
Return the coefficients for the matrix element piece for the QCD compton case. More... | |
double | A (tcPDPtr qin1, tcPDPtr qout1, tcPDPtr qin2, tcPDPtr qout2) |
Calculate the coefficient A for the correlations. | |
Standard Interfaced functions. | |
virtual void | doinit () |
Initialize this object after the setup phase before saving an EventGenerator to disk. More... | |
virtual void | dofinish () |
Finalize this object. More... | |
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... | |
Protected Member Functions inherited from Herwig::MEfftoffH | |
double | helicityME (vector< SpinorWaveFunction > &f1, vector< SpinorWaveFunction > &f2, vector< SpinorBarWaveFunction > &a1, vector< SpinorBarWaveFunction > &a2, bool swap1, bool swap2, bool me) const |
Matrix element for . More... | |
void | setWWHVertex (AbstractVVSVertexPtr in) |
Set the pointer to the vector-vector-Higgs vertex. | |
void | lineShape (unsigned int in) |
Set the line shape treatment. | |
unsigned int | process () const |
Which process to generate. | |
bool | swapOrder () |
Whether momenta are swapped. | |
void | process (unsigned int in) |
Which process to generate. | |
unsigned int | maxFlavour () const |
Maximum flavour of the incoming partons. | |
unsigned int | minFlavour () const |
Minimum flavour of the incoming partons. | |
PDPtr | WPlus () const |
Access to the vector ParticleData objects. More... | |
PDPtr | WMinus () const |
Access to the data. | |
PDPtr | Z0 () const |
Access to the data. | |
PDPtr | higgs () const |
Access to the Higgs boson. | |
void | higgs (PDPtr in) |
Set the Higgs boson. | |
Protected Member Functions inherited from Herwig::HwMEBase | |
void | massOption (vector< unsigned int > iopt) |
Set the treatment of the outgoing masses. More... | |
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). | |
Energy2 | tHat () const |
Return the of the last set phase space point. | |
Energy2 | uHat () const |
Return the 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 of the last set phase space point. | |
void | uHat (Energy2 e2) |
Set the of the last set phase space point. | |
void | phi (double phi) |
Set the azimuth angle of the last set phase space point. | |
void | rescalingOption (unsigned int iopt) |
Rescaled momenta for the helicity ME. More... | |
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. | |
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 IVector | getReferences () |
virtual void | rebind (const TranslationMap &) |
virtual void | readSetup (istream &is) |
virtual void | doupdate () |
virtual IVector | getReferences () |
virtual void | rebind (const TranslationMap &) |
Protected Member Functions inherited from ThePEG::Pointer::ReferenceCounted | |
ReferenceCounted (const ReferenceCounted &) | |
ReferenceCounted & | operator= (const ReferenceCounted &) |
ReferenceCounted (const ReferenceCounted &) | |
ReferenceCounted & | operator= (const ReferenceCounted &) |
Protected Member Functions inherited from ThePEG::Named | |
const Named & | operator= (const Named &other) |
const string & | name (const string &newName) |
Private Member Functions | |
MEPP2HiggsVBF & | operator= (const MEPP2HiggsVBF &)=delete |
The assignment operator is private and must never be called. More... | |
Private Attributes | |
ShowerAlphaPtr | alpha_ |
Parameters for the hard POWHEG emission. More... | |
double | comptonWeight_ |
Weight for the compton channel. | |
double | BGFWeight_ |
Weight for the BGF channel. | |
Energy | pTmin_ |
Minimum value of . | |
PDPtr | gluon_ |
Gluon particle data object. | |
tcBeamPtr | beam_ [2] |
Properties of the emission. More... | |
tcPDFPtr | pdf_ [2] |
PDF object. | |
tcPDPtr | partons_ [2][4] |
Partons. | |
Lorentz5Momentum | q_ [2] |
q | |
Energy2 | q2_ [2] |
| |
double | acoeff_ |
Coupling factor. | |
LorentzVector< double > | l_ |
Lorentz vectors for the matrix element. | |
LorentzVector< double > | m_ |
Lorentz vectors for the matrix element. | |
double | xB_ [2] |
Born momentum fraction. | |
LorentzRotation | rot_ [2] |
Rotation to the Breit frame. | |
Lorentz5Momentum | pother_ [2][2] |
Quark momenta for spectator system. | |
Lorentz5Momentum | psystem_ [2][2] |
Quark momenta for emitting system. | |
Lorentz5Momentum | phiggs_ [2] |
Higgs momenta. | |
Energy | pTCompton_ [2] |
Transverse momenta for the compton emissions. | |
Energy | pTBGF_ [2] |
Transverse momenta for the BGF emissions. | |
bool | ComptonISFS_ [2] |
Whether the Compton radiation is ISR or FSR. | |
vector< Lorentz5Momentum > | ComptonMomenta_ [2] |
Momenta of the particles for a compton emission. | |
vector< Lorentz5Momentum > | BGFMomenta_ [2] |
Momenta of the particles for a BGF emission. | |
vector< tChannelPair > | systems_ |
the systems | |
PPtr | higgs_ |
Higgs boson. | |
double | initial_ |
Parameters for the matrix element correction. More... | |
double | final_ |
Enchancement factor for FSR. | |
double | procProb_ |
Relative fraction of compton and BGF processes to generate. | |
double | comptonInt_ |
Integral for compton process. | |
double | bgfInt_ |
Integral for BGF process. | |
unsigned int | nover_ |
Number of weights greater than 1. | |
pair< double, double > | maxwgt_ |
Maximum weight. | |
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< ReweightPtr > | ReweightVector |
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::Interfaced | |
static void | registerRepository (IBPtr) |
static void | registerRepository (IBPtr, string newName) |
Protected Attributes inherited from ThePEG::LastXCombInfo< StandardXComb > | |
XCPtr | theLastXComb |
The MEPP2HiggsVBF class provides the matrix elements for the production of the Higgs boson via the vector boson fusion mechanism in hadron collisions.
Definition at line 23 of file MEPP2HiggsVBF.h.
|
protected |
Return the coefficients for the matrix element piece for the QCD compton case.
The output is the coefficients to give the function as
xp | |
x2 | |
x3 | |
xperp | |
l | Scaled momentum of incoming spectator |
m | Scaled momentum of outgoing spectator |
|
inlineprotectedvirtual |
Make a simple clone of this object.
Implements ThePEG::InterfacedBase.
Reimplemented in Herwig::MEPP2HiggsVBFPowheg.
Definition at line 273 of file MEPP2HiggsVBF.h.
|
protected |
Return the coefficients for the matrix element piece for the QCD compton case.
The output is the coefficients to give the function as
xp | |
x2 | |
xperp | |
l | Scaled momentum of incoming spectator |
m | Scaled momentum of outgoing spectator |
|
protectedvirtual |
Finalize this object.
Called in the run phase just after a run has ended. Used eg. to write out statistics.
Reimplemented from ThePEG::InterfacedBase.
|
protectedvirtual |
Initialize this object after the setup phase before saving an EventGenerator to disk.
InitException | if object could not be initialized properly. |
Reimplemented from Herwig::MEfftoffH.
Reimplemented in Herwig::MEPP2HiggsVBFPowheg.
|
inlineprotectedvirtual |
Make a clone of this object, possibly modifying the cloned object to make it sane.
Reimplemented from ThePEG::InterfacedBase.
Reimplemented in Herwig::MEPP2HiggsVBFPowheg.
Definition at line 279 of file MEPP2HiggsVBF.h.
|
protected |
Generate the values of and .
xp | The value of xp, output |
zp | The value of zp, output |
|
protected |
Generate the hardest emission in the POWHEG approach.
Generate a Compton process
|
protected |
Generate the hard emission in the old-fashioned matrix element correction approach.
Generate the values of and
xp | The value of xp, output |
zp | The value of zp, output |
|
inlinevirtual |
Virtual members to be overridden by inheriting classes which implement hard corrections.
Has a POWHEG style correction
Reimplemented from Herwig::HwMEBase.
Definition at line 80 of file MEPP2HiggsVBF.h.
|
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.
|
privatedelete |
The assignment operator is private and must never be called.
In fact, it should not even be implemented.
void Herwig::MEPP2HiggsVBF::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. |
void Herwig::MEPP2HiggsVBF::persistentOutput | ( | PersistentOStream & | os | ) | const |
Function used to write out object persistently.
os | the persistent output stream written to. |
|
virtual |
Apply the soft matrix element correction.
parent | The initial particle in the current branching |
progenitor | The progenitor particle of the jet |
fs | Whether the emission is initial or final-state |
highestpT | The highest pT so far in the shower |
ids | ids of the particles produced in the branching |
z | The momentum fraction of the branching |
scale | the evolution scale of the branching |
pT | The transverse momentum of the branching |
Reimplemented from Herwig::HwMEBase.
|
private |
Parameters for the hard POWHEG emission.
Pointer to the object calculating the strong coupling
Definition at line 299 of file MEPP2HiggsVBF.h.
|
private |
|
private |
Parameters for the matrix element correction.
Enchancement factor for ISR
Definition at line 434 of file MEPP2HiggsVBF.h.