LastXCombInfo is a templated class giving easy access to the information in an XComb object. More...

#include <LastXCombInfo.h>

Inheritance diagram for ThePEG::LastXCombInfo< XC >:

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Public Types
typedef ThePEG::Ptr< XC >::pointer	XCPtr
	Alias for a reference counted pointer to XC . More...

typedef ThePEG::Ptr< XC >::const_pointer	cXCPtr
	Alias for a reference counted pointer to a const XC . More...

typedef ThePEG::Ptr< XC >::transient_pointer	tXCPtr
	Alias for a transient pointer to XC . More...

typedef ThePEG::Ptr< XC >::transient_const_pointer	tcXCPtr
	Alias for a transient pointer to a const XC . More...

Public Member Functions
Acces to the actual XComb object.
const XC &	lastXComb () const
	Return a reference to the last selected XComb.

tXCPtr	lastXCombPtr () const
	Return a pointer to the last selected XComb.

const XC &	lastHeadXComb () const
	If the last selected XComb object belongs to a group of XComb's return a reference to the head XComb object for this group.

tXCPtr	lastHeadXCombPtr () const
	If the last selected XComb object belongs to a group of XComb's return a pointer to the head XComb object for this group.

Access the objects used by the XComb object.
const EventHandler &	lastEventHandler () const
	Return a reference to the currently used EventHandler.

tPExtrPtr	lastExtractor () const
	A pointer to the currently used parton extractor.

template<typename PDFT >
PDFT	pdf (tcPPtr parton) const
	Return the parton density used to extract the given parton. More...

const Cuts &	lastCuts () const
	A reference to the currently used kinematical cuts.

tCutsPtr	lastCutsPtr () const
	A pointer to the currently used kinematical cuts.

Access information about the incoming particles and partons.
const PPair &	lastParticles () const
	Return the pair of incoming parton instances.

Energy2	lastS () const
	The last generated total energy squared of the incoming particles.

const PPair &	lastPartons () const
	Return the pair of incoming parton instances.

Energy2	lastSHat () const
	The last used interval in total parton-parton energy squared.

double	lastTau () const
	Return lastSHat()/lastS().

double	lastY () const
	The generated rapidity of the hard scattering sub-system.

double	lastP1 () const
	Log of one over the momentum fraction of the first incoming particle w.r.t. More...

double	lastP2 () const
	Log of one over the momentum fraction of the second incoming particle w.r.t. More...

double	lastL1 () const
	Log of one over the first incoming parton momentum fraction w.r.t. More...

double	lastL2 () const
	Log of one over the second incoming parton momentum fraction w.r.t. More...

double	lastX1 () const
	The first incoming parton momentum fraction w.r.t. More...

double	lastX2 () const
	The second incoming parton momentum fraction w.r.t. More...

double	lastE1 () const
	Return 1-lastX1() to highest possible precision for x $\rightarrow$ 1.

double	lastE2 () const
	Return 1-lastX2() to highest possible precision for x $\rightarrow$ 1.

double	lastFL1L2 () const
	The product of the parton density functions at the last generated phase-space point.

Access information of the hard sub-process.
Energy2	lastScale () const
	The chosen scale of the hard scattering.

double	lastAlphaS () const
	Get the $\alpha_S$ used in the hard scattering. More...

double	lastAlphaEM () const
	Get the $\alpha_{EM}$ used in the hard scattering. More...

const vector< Lorentz5Momentum > &	meMomenta () const
	Return the momenta of the incoming and outgoing partons to be used by the matrix element object, in the order specified by the TreeDiagram objects given by the matrix element.

double	lastME2 () const
	Return the matrix element squared as calculated for the last phase space point. More...

double	lastPreweight () const
	Return the last preweight factor.

double	jacobian () const
	Get the last jacobian obtained when generating the kinematics for the call to dSigHatDR.

CrossSection	lastMECrossSection () const
	Return the partonic cross section as calculated for the last phase space point. More...

double	lastMEPDFWeight () const
	Return the PDF weight as calculated for the last phase space point, if the matrix element does supply PDF weights. More...

double	lastMECouplings () const
	Return the coupling weight as calculated for the last phase space point.

tSubProPtr	subProcess () const
	Return the SubProcess object corresponding to the last generated sub-process.

const cPDVector &	mePartonData () const
	Return the incoming and outgoing parton types to be used by the matrix element object, in the order specified by the TreeDiagram objects given by the matrix element.

Protected Attributes
XCPtr	theLastXComb
	The pointer to the last selected XComb.

Detailed Description

template<typename XC = XComb>
class ThePEG::LastXCombInfo< XC >

LastXCombInfo is a templated class giving easy access to the information in an XComb object.

The default template argument is the basic XComb class, but also subclasses of XComb can be used. Classes which need to have easy access to the last selected XComb object with information about the sub-process which is being generated, should (possibly multiple) inherit from the LastXCombInfo class. The LastXCombInfo is templated to enable derived classes to only include dependencies necessary for the access function which are actually used.

Definition at line 32 of file LastXCombInfo.h.

Member Typedef Documentation

◆ cXCPtr

template<typename XC = XComb>

typedef ThePEG::Ptr< XC >::const_pointer ThePEG::LastXCombInfo< XC >::cXCPtr

Alias for a reference counted pointer to a const XC .

Definition at line 36 of file LastXCombInfo.h.

◆ tcXCPtr

template<typename XC = XComb>

typedef ThePEG::Ptr< XC >::transient_const_pointer ThePEG::LastXCombInfo< XC >::tcXCPtr

Alias for a transient pointer to a const XC .

Definition at line 36 of file LastXCombInfo.h.

◆ tXCPtr

template<typename XC = XComb>

typedef ThePEG::Ptr< XC >::transient_pointer ThePEG::LastXCombInfo< XC >::tXCPtr

Alias for a transient pointer to XC .

Definition at line 36 of file LastXCombInfo.h.

◆ XCPtr

template<typename XC = XComb>

typedef ThePEG::Ptr< XC >::pointer ThePEG::LastXCombInfo< XC >::XCPtr

Alias for a reference counted pointer to XC .

Definition at line 36 of file LastXCombInfo.h.

Member Function Documentation

◆ lastAlphaEM()

template<typename XC = XComb>

double ThePEG::LastXCombInfo< XC >::lastAlphaEM ( ) const

inline

Get the $\alpha_{EM}$ used in the hard scattering.

Is negative if no value has been set.

Definition at line 205 of file LastXCombInfo.h.

◆ lastAlphaS()

template<typename XC = XComb>

double ThePEG::LastXCombInfo< XC >::lastAlphaS ( ) const

inline

Get the $\alpha_S$ used in the hard scattering.

Is negative if no value has been set.

Definition at line 199 of file LastXCombInfo.h.

◆ lastL1()

template<typename XC = XComb>

double ThePEG::LastXCombInfo< XC >::lastL1 ( ) const

inline

Log of one over the first incoming parton momentum fraction w.r.t.

the first incoming particle.

Definition at line 149 of file LastXCombInfo.h.

◆ lastL2()

template<typename XC = XComb>

double ThePEG::LastXCombInfo< XC >::lastL2 ( ) const

inline

Log of one over the second incoming parton momentum fraction w.r.t.

the second incoming particle.

Definition at line 155 of file LastXCombInfo.h.

◆ lastME2()

template<typename XC = XComb>

double ThePEG::LastXCombInfo< XC >::lastME2 ( ) const

inline

Return the matrix element squared as calculated for the last phase space point.

This may optionally be used by a matrix element for caching.

Definition at line 219 of file LastXCombInfo.h.

◆ lastMECrossSection()

template<typename XC = XComb>

CrossSection ThePEG::LastXCombInfo< XC >::lastMECrossSection ( ) const

inline

Return the partonic cross section as calculated for the last phase space point.

This may optionally be used by a matrix element for caching.

Definition at line 237 of file LastXCombInfo.h.

◆ lastMEPDFWeight()

template<typename XC = XComb>

double ThePEG::LastXCombInfo< XC >::lastMEPDFWeight ( ) const

inline

Return the PDF weight as calculated for the last phase space point, if the matrix element does supply PDF weights.

This may optionally be used by a matrix element for caching.

Definition at line 245 of file LastXCombInfo.h.

◆ lastP1()

template<typename XC = XComb>

double ThePEG::LastXCombInfo< XC >::lastP1 ( ) const

inline

Log of one over the momentum fraction of the first incoming particle w.r.t.

the maximum allowed energy.

Definition at line 137 of file LastXCombInfo.h.

◆ lastP2()

template<typename XC = XComb>

double ThePEG::LastXCombInfo< XC >::lastP2 ( ) const

inline

Log of one over the momentum fraction of the second incoming particle w.r.t.

the maximum allowed energy.

Definition at line 143 of file LastXCombInfo.h.

◆ lastX1()

template<typename XC = XComb>

double ThePEG::LastXCombInfo< XC >::lastX1 ( ) const

inline

The first incoming parton momentum fraction w.r.t.

the first incoming particle.

Definition at line 161 of file LastXCombInfo.h.

◆ lastX2()

template<typename XC = XComb>

double ThePEG::LastXCombInfo< XC >::lastX2 ( ) const

inline

The second incoming parton momentum fraction w.r.t.

the second incoming particle.

Definition at line 167 of file LastXCombInfo.h.

◆ pdf()

template<typename XC = XComb>

template<typename PDFT >

PDFT ThePEG::LastXCombInfo< XC >::pdf ( tcPPtr parton ) const

inline

Return the parton density used to extract the given parton.

This function is templated to avoid having to include the PDF.h and all its dependencies in this header.

Definition at line 85 of file LastXCombInfo.h.

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

LastXCombInfo.h

Public Types

Public Member Functions

Protected Attributes

Detailed Description

template<typename XC = XComb> class ThePEG::LastXCombInfo< XC >

Member Typedef Documentation

◆ cXCPtr

◆ tcXCPtr

◆ tXCPtr

◆ XCPtr

Member Function Documentation

◆ lastAlphaEM()

◆ lastAlphaS()

◆ lastL1()

◆ lastL2()

◆ lastME2()

◆ lastMECrossSection()

◆ lastMEPDFWeight()

◆ lastP1()

◆ lastP2()

◆ lastX1()

◆ lastX2()

◆ pdf()

template<typename XC = XComb>
class ThePEG::LastXCombInfo< XC >