The MEqq2W2ff class implements the matrix element for \(q\bar{q'}\to W^\pm\) including the decay of the \(W^\pm\) to Standard Model fermions. More...
#include <MEqq2W2ff.h>
Public Member Functions | |
MEqq2W2ff () | |
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 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 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< DiagramIndex > | diagrams (const DiagramVector &dv) const |
Get diagram selector. | |
virtual Selector< const ColourLines * > | colourGeometries (tcDiagPtr diag) const |
Return a Selector with possible colour geometries for the selected diagram weighted by their relative probabilities. | |
virtual void | constructVertex (tSubProPtr) |
Construct the vertex of spin correlations. | |
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DrellYanBase () | |
The default constructor. | |
virtual POWHEGType | hasPOWHEGCorrection () |
Has a POWHEG style correction. | |
virtual bool | hasMECorrection () |
Has an old fashioned ME correction. | |
virtual void | initializeMECorrection (RealEmissionProcessPtr, double &initial, double &final) |
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. | |
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. | |
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. | |
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HwMEBase () | |
Default constructor. | |
virtual int | nDim () const |
The number of internal degreed 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 ]0,1[. | |
virtual CrossSection | dSigHatDR () const |
Return the matrix element for the kinematical configuation previously provided by the last call to setKinematics(). | |
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. | |
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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 DiagramVector & | diagrams () const |
virtual Selector< const ColourLines * > | colourGeometries (tcDiagPtr diag) const=0 |
virtual const ColourLines & | selectColourGeometry (tcDiagPtr diag) const |
virtual Selector< DiagramIndex > | diagrams (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 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 |
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 DiagramVector & | diagrams () const |
virtual Selector< const ColourLines * > | colourGeometries (tcDiagPtr diag) const=0 |
virtual const ColourLines & | selectColourGeometry (tcDiagPtr diag) const |
virtual Selector< DiagramIndex > | diagrams (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 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) |
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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 |
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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 |
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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 |
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void | debug () const |
virtual void | debugme () const |
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CounterType | referenceCount () const |
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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 |
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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 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 |
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 cPDVector & | mePartonData () const |
Protected Member Functions | |
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. | |
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bool | applyHard (ParticleVector &quarks, vector< tcBeamPtr > beams, Lorentz5Momentum boson, unsigned int &iemit, unsigned int &itype, vector< Lorentz5Momentum > &pnew, LorentzRotation &trans, pair< double, double > &xnew, Energy2 shad) |
Return the momenta and type of hard matrix element correction. | |
double | getResult (int emis_type, Energy pt, double yj) |
Returns the matrix element for a given type of process, rapidity of the jet \(y_j\) and transverse momentum \(p_T\). | |
bool | getEvent (vector< Lorentz5Momentum > &pnew, int &emissiontype) |
generates the hardest emission (yj,p) | |
virtual void | dofinish () |
Finalize this object. | |
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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). | |
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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 |
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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) |
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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 &) |
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ReferenceCounted (const ReferenceCounted &) | |
ReferenceCounted & | operator= (const ReferenceCounted &) |
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const Named & | operator= (const Named &other) |
const string & | name (const string &newName) |
Standard Interfaced functions. | |
AbstractFFVVertexPtr | _theFFWVertex |
Pointer to the W vertex. | |
tcPDPtr | _wp |
Pointers to the intermediates resonances. | |
tcPDPtr | _wm |
Pointer to the \(W^-\). | |
unsigned int | _maxflavour |
Switches to control the particles in the hard process. | |
unsigned int | _plusminus |
Which intermediate \(W^\pm\) bosons to include. | |
unsigned int | _process |
Which decay products of the \(W^\pm\) to include. | |
ProductionMatrixElement | _me |
Matrix element for spin correlations. | |
virtual void | doinit () |
Initialize this object after the setup phase before saving an EventGenerator to disk. | |
MEqq2W2ff & | operator= (const MEqq2W2ff &)=delete |
The assignment operator is private and must never be called. | |
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. | |
double | qqbarME (vector< SpinorWaveFunction > &fin, vector< SpinorBarWaveFunction > &ain, vector< SpinorBarWaveFunction > &fout, vector< SpinorWaveFunction > &aout, bool me) const |
Matrix element for \(q\bar{q}\to \gamma/Z \to f\bar{f}\). | |
Additional Inherited Members | |
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enum | POWHEGType { No , ISR , FSR , Both } |
Virtual members to be overridden by inheriting classes which implement hard corrections. More... | |
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typedef vector< DiagPtr > | DiagramVector |
typedef DiagramVector::size_type | DiagramIndex |
typedef vector< ReweightPtr > | ReweightVector |
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enum | InitState |
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typedef unsigned int | CounterType |
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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 |
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static void | Init () |
The standard Init function used to initialize the interfaces. | |
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static void | Init () |
The standard Init function used to initialize the interfaces. | |
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static void | Init () |
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static void | Init () |
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static void | Init () |
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static void | Init () |
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static void | Init () |
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initializing | |
uninitialized | |
initialized | |
runready | |
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const unsigned long | uniqueId |
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static void | registerRepository (IBPtr) |
static void | registerRepository (IBPtr, string newName) |
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XCPtr | theLastXComb |
The MEqq2W2ff class implements the matrix element for \(q\bar{q'}\to W^\pm\) including the decay of the \(W^\pm\) to Standard Model fermions.
Definition at line 33 of file MEqq2W2ff.h.
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inlineprotectedvirtual |
Make a simple clone of this object.
Implements ThePEG::InterfacedBase.
Reimplemented in Herwig::MEqq2W2ffPowheg.
Definition at line 152 of file MEqq2W2ff.h.
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virtual |
Return a Selector with possible colour geometries for the selected diagram weighted by their relative probabilities.
diag | the diagram chosen. |
Implements ThePEG::MEBase.
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virtual |
Construct the vertex of spin correlations.
Reimplemented from ThePEG::MEBase.
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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.
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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::DrellYanBase.
Reimplemented in Herwig::MEqq2W2ffPowheg.
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inlineprotectedvirtual |
Make a clone of this object, possibly modifying the cloned object to make it sane.
Reimplemented from ThePEG::InterfacedBase.
Reimplemented in Herwig::MEqq2W2ffPowheg.
Definition at line 158 of file MEqq2W2ff.h.
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virtual |
Add all possible diagrams with the add() function.
Implements ThePEG::MEBase.
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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.
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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.
The assignment operator is private and must never be called.
In fact, it should not even be implemented.
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virtual |
Return the order in \(\alpha_{EW}\) in which this matrix element is given.
Implements ThePEG::MEBase.
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virtual |
Return the order in \(\alpha_S\) in which this matrix element is given.
Implements ThePEG::MEBase.
void Herwig::MEqq2W2ff::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::MEqq2W2ff::persistentOutput | ( | PersistentOStream & | os | ) | const |
Function used to write out object persistently.
os | the persistent output stream written to. |
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protected |
Matrix element for \(q\bar{q}\to \gamma/Z \to f\bar{f}\).
fin | Spinors for incoming quark |
ain | Spinors for incoming antiquark |
fout | Spinors for incoming quark |
aout | Spinors for incoming antiquark |
me | Whether or not to calculate the matrix element for spin correlations |
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virtual |
Return the scale associated with the last set phase space point.
Implements ThePEG::MEBase.
Reimplemented in Herwig::MEqq2W2ffPowheg.
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private |
Switches to control the particles in the hard process.
The allowed flavours of the incoming quarks
Definition at line 210 of file MEqq2W2ff.h.
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private |
Matrix element for spin correlations.
Definition at line 226 of file MEqq2W2ff.h.
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private |
Which intermediate \(W^\pm\) bosons to include.
Definition at line 215 of file MEqq2W2ff.h.
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private |
Which decay products of the \(W^\pm\) to include.
Definition at line 220 of file MEqq2W2ff.h.
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private |
Pointer to the W vertex.
Definition at line 186 of file MEqq2W2ff.h.
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private |
Pointer to the \(W^-\).
Definition at line 200 of file MEqq2W2ff.h.
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private |
Pointers to the intermediates resonances.
Pointer to the \(W^+\)
Definition at line 195 of file MEqq2W2ff.h.