ThePEG::MadGraphReader Class Reference

MadGraphReader inherits from LesHouchesFileReader and is able to read event files produced by the MadGraph/MadEvent program. More...

#include <MadGraphReader.h>

Inheritance diagram for ThePEG::MadGraphReader:

Classes
struct	WeightedException
	Exception class used to inform about inability to work with some weighted event files. More...

Public Member Functions
Standard constructors and destructors.
	MadGraphReader ()
	Default constructor.
Virtual functions specified by the LesHouchesReader base class.
virtual void	open ()
	Open a file or stream with events and read in the run information into the corresponding protected variables.
virtual long	scan ()
	Scan the file or stream to obtain information about cross section weights and particles etc.
virtual bool	doReadEvent ()
	Read the next event form the file or stream into the corresponding protected variables.
Public Member Functions inherited from ThePEG::LesHouchesFileReader
	LesHouchesFileReader ()
	Default constructor.
	LesHouchesFileReader (const LesHouchesFileReader &)
	Copy-constructor.
virtual	~LesHouchesFileReader ()
	Destructor.
virtual void	initialize (LesHouchesEventHandler &eh)
	Initialize.
virtual void	close ()
	Close the file from which events have been read.
string	filename () const
	Return the name of the file from where to read events.
virtual vector< string >	optWeightsNamesFunc ()
	Return the optional weights information string ("Names")
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.
void	erase_substr (std::string &subject, const std::string &search)
	Erases all occurences of a substring from a string.
Public Member Functions inherited from ThePEG::LesHouchesReader
	LesHouchesReader (bool active=false)
	Default constructor.
	LesHouchesReader (const LesHouchesReader &)
	Copy-constructor.
virtual	~LesHouchesReader ()
	Destructor.
virtual double	getEvent ()
	Calls readEvent() or uncacheEvent() to read information into the LesHouches common block variables.
virtual bool	readEvent ()
	Calls doReadEvent() and performs pre-defined reweightings.
virtual void	skip (long n)
	Skip n events.
tXCombPtr	getXComb ()
	Get an XComb object.
tSubProPtr	getSubProcess ()
	Get a SubProcess object corresponding to the information in the Les Houches common block variables.
virtual void	initStat ()
	Take the information corresponding to the HEPRUP common block and initialize the statistics for this reader.
double	reweight ()
	Reweights the current event using the reweights and preweights vectors.
virtual void	fillEvent ()
	Converts the information in the Les Houches common block variables into a Particle objects.
void	reset ()
	Removes the particles created in the last generated event, preparing to produce a new one.
virtual void	setWeightScale (long neve)
	Possibility for subclasses to recover from non-conformant settings of XMAXUP when an event file has been scanned with neve events.
long	NEvents () const
	The number of events found in this reader.
long	currentPosition () const
	The number of events produced so far.
long	maxScan () const
	The maximum number of events to scan to collect information about processes and cross sections.
bool	active () const
	Return true if this reader is active.
bool	negativeWeights () const
	True if negative weights may be produced.
const XSecStat &	xSecStats () const
	The collected cross section statistics for this reader.
const StatMap &	processStats () const
	Collected statistics about the individual processes.
void	select (double weight)
	Select the current event.
void	accept ()
	Accept the current event assuming it was previously selcted.
void	reject (double w)
	Reject the current event assuming it was previously accepted.
virtual void	increaseMaxXSec (CrossSection maxxsec)
	Increase the overestimated cross section for this reader.
tPExtrPtr	partonExtractor () const
	The PartonExtractor object used to construct remnants.
tCascHdlPtr	CKKWHandler () const
	Return a possibly null pointer to a CascadeHandler to be used for CKKW-reweighting.
const PartonPairVec &	partonBins () const
	The pairs of PartonBin objects describing the partons which can be extracted by the PartonExtractor object.
const XCombMap &	xCombs () const
	The map of XComb objects indexed by the corresponding PartonBin pair.
const Cuts &	cuts () const
	The Cuts object to be used for this reader.
double	eventWeight () const
	The current event weight given by XWGTUP times possible reweighting.
const map< string, double > &	optionalEventWeights () const
	Return the optional named weights associated to the current event.
const long &	LHEEventNum () const
	Return the Les Houches event number associated with the current event.
const int &	optionalEventnpLO () const
	Return the optional npLO and npNLO.
const int &	optionalEventnpNLO () const
const PBIPair &	partonBinInstances () const
	The pair of PartonBinInstance objects describing the current incoming partons in the event.
const PPair &	beams () const
	Return the instances of the beam particles for the current event.
const PPair &	incoming () const
	Return the instances of the incoming particles to the sub process for the current event.
const PVector &	outgoing () const
	Return the instances of the outgoing particles from the sub process for the current event.
const PVector &	intermediates () const
	Return the instances of the intermediate particles in the sub process for the current event.
int	maxMultCKKW () const
	If this reader is to be used (possibly together with others) for CKKW reweighting and veto, this should give the multiplicity of outgoing particles in the highest multiplicity matrix element in the group.
int	minMultCKKW () const
	If this reader is to be used (possibly together with others) for CKKW reweighting and veto, this should give the multiplicity of outgoing particles in the lowest multiplicity matrix element in the group.
void	persistentOutput (PersistentOStream &os) const
	Function used to write out object persistently.
void	persistentInput (PersistentIStream &is, int version)
	Function used to read in object persistently.
Public Member Functions inherited from ThePEG::HandlerBaseT< UseRandom >
virtual	~HandlerBaseT ()
	Destructor.
double	rnd () const
	Return a simple flat random number in the range ]0,1[.
double	rnd (double xu) const
	Return a simple flat random number in the range ]0,xu[.
double	rnd (double xl, double xu) const
	Return a simple flat random number in the range ]xl,xu[.
bool	rndbool () const
	Return true with 50% probability.
bool	rndbool (double p) const
	Return a true with probability p.
bool	rndbool (double p1, double p2) const
	Return a true with probability p1/(p1+p2).
int	rndsign (double p1, double p2, double p3) const
	Return -1, 0, or 1 with relative probabilities p1, p2, p3.
int	rnd2 (double p0, double p1) const
	Return an integer \(i\) with probability p \(i\)/(p0+p1).
int	rnd3 (double p0, double p1, double p2) const
	Return an integer \(i\) with probability p \(i\)/(p0+p1+p2).
int	rnd4 (double p0, double p1, double p2, double p3) const
	Return an integer/ \(i\) with probability p \(i\)(p0+p1+p2+p3).
long	irnd (long xu=2) const
	Return a simple flat random integrer number in the range [0,xu[.
long	irnd (long xl, long xu) const
	Return a simple flat random integrer number in the range [xl,xu[.
const StandardModelBase &	SM () const
	Return a reference to the object containing the standard model parameters for this run.
tSMPtr	standardModel () const
	Return a pointer to the object containing the standard model parameters for this run.
Public Member Functions inherited from ThePEG::Interfaced
virtual	~Interfaced ()
	Empty virtual destructor.
virtual bool	defaultInit ()
	Functions which are to be used during the actual event generation, after the setup is complete.
PPtr	getParticle (PID) const
	Create a new Particle instance given a id number.
PDPtr	getParticleData (PID) const
	Return a pointer to the ParticleData object corresponding to the given id number.
bool	used () const
	Returns true if this object has actally been used.
void	useMe () const
	Should be called to indicate that this object has actually been used.
tEGPtr	generator () const
	Return a pointer to the EventGenerator controlling the run.
void	persistentOutput (PersistentOStream &os) const
	Function used to write out object persistently.
void	persistentInput (PersistentIStream &is, int version)
	Function used to read in object persistently.
Public Member Functions inherited from ThePEG::InterfacedBase
virtual	~InterfacedBase ()
	The virtual (empty) destructor;.
string	fullName () const
	Returns the full name of this object including its path, e.g.
string	name () const
	Returns the name of this object, without the path.
string	path () const
	Returns the path to this object including the trailing '/'.
string	comment () const
	Returns a comment assigned to this object.
void	setup (istream &is)
	Read setup info from a standard istream is.
void	update ()
	Calls the doupdate() function with recursion prevention.
void	init ()
	Calls the doinit() function with recursion prevention.
void	initrun ()
	Calls the doinitrun() function with recursion prevention.
void	finish ()
	Calls the dofinish() function with recursion prevention.
void	touch ()
	This function should be called every time something in this object has changed in a way that a sanity check with update() is needed.
void	reset ()
	Set the state of this object to uninitialized.
void	clear ()
	Calls reset() and unTouch().
InitState	state () const
	Return the state of initialization of this object.
bool	locked () const
	Return true if the BaseRepository is not allowed to change the state of this object.
bool	touched () const
	Return true if the state of this object has been changed since the last call to update().
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.
virtual void	debugme () const
	Print out debugging information for this object on std::cerr.
Public Member Functions inherited from ThePEG::Base
virtual	~Base ()
	The virtual destructor.
void	debug () const
	Print out debugging information for this object on std::cerr.
virtual void	debugme () const
	Print out debugging information for this object on std::cerr.
Public Member Functions inherited from ThePEG::Pointer::ReferenceCounted
CounterType	referenceCount () const
	Return the reference count.
Public Member Functions inherited from ThePEG::Named
	Named (const string &newName=string())
	Constructor with name.
	Named (const Named &)=default
	Explicit default copy-constructor (too avoid compiler warnings)
const string &	name () const
	Return name.
bool	operator== (const Named &other) const
	Test for equality.
bool	operator< (const Named &other) const
	Lexicographical comparison.
Public Member Functions inherited from ThePEG::LastXCombInfo< XC >
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.
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.
const Cuts &	lastCuts () const
	A reference to the currently used kinematical cuts.
tCutsPtr	lastCutsPtr () const
	A pointer to the currently used kinematical cuts.
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.
double	lastP2 () const
	Log of one over the momentum fraction of the second incoming particle w.r.t.
double	lastL1 () const
	Log of one over the first incoming parton momentum fraction w.r.t.
double	lastL2 () const
	Log of one over the second incoming parton momentum fraction w.r.t.
double	lastX1 () const
	The first incoming parton momentum fraction w.r.t.
double	lastX2 () const
	The second incoming parton momentum fraction w.r.t.
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.
Energy2	lastScale () const
	The chosen scale of the hard scattering.
double	lastAlphaS () const
	Get the \(\alpha_S\) used in the hard scattering.
double	lastAlphaEM () const
	Get the \(\alpha_{EM}\) used in the hard scattering.
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.
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.
double	lastMEPDFWeight () const
	Return the PDF weight as calculated for the last phase space point, if the matrix element does supply PDF weights.
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 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.
Protected Member Functions inherited from ThePEG::LesHouchesFileReader
Protected Member Functions inherited from ThePEG::LesHouchesReader
virtual bool	checkPartonBin ()
	Check the existence of a pair of PartonBin objects corresponding to the current event.
virtual void	createParticles ()
	Create instances of all particles in the event and store them in particleIndex.
virtual tcPBPair	createPartonBinInstances ()
	Using the already created particles create a pair of PartonBinInstance objects corresponding to the incoming partons.
virtual void	createBeams ()
	Create instances of the incoming beams in the event and store them in particleIndex.
virtual void	connectMothers ()
	Go through the mother indices and connect up the Particles.
void	NEvents (long x)
	The number of events in this reader.
XCombMap &	xCombs ()
	The map of XComb objects indexed by the corresponding PartonBin pair.
virtual void	doinitrun ()
	Initialize this object.
string	cacheFileName () const
	Name of file used to cache the events form the reader in a fast-readable form.
bool	cutEarly () const
	Determines whether to apply cuts to events converting them to ThePEG format.
CFile	cacheFile () const
	File stream for the cache.
void	openReadCacheFile ()
	Open the cache file for reading.
void	openWriteCacheFile ()
	Open the cache file for writing.
void	closeCacheFile ()
	Close the cache file;.
void	cacheEvent () const
	Write the current event to the cache file.
bool	uncacheEvent ()
	Read an event from the cache file.
void	reopen ()
	Reopen a reader.
Protected Member Functions inherited from ThePEG::Interfaced
void	reporeg (IBPtr object, string name) const
	Register the given object in the Repository with the given name in a subdirectory with the same name as this object.
template<typename PtrT >
bool	setDefaultReference (PtrT &ptr, string classname, string objectname)
	If the pointer, ptr, to an object is not set, create an object of class classname and register it with the Repository with the given objectname in a sib-directory with the same name as this object.
	Interfaced ()
	Protected default constructor.
	Interfaced (const string &newName)
	Protected constructor taking a name as argument.
	Interfaced (const Interfaced &i)
	Protected copy-constructor.
void	setGenerator (tEGPtr generator)
	Protected function to reset the generator pointer, required for automatic decayer generation in Herwig++ BSM models.
Protected Member Functions inherited from ThePEG::InterfacedBase
virtual void	readSetup (istream &is)
	Read setup info from a standard istream is.
virtual void	doupdate ()
	Check sanity of the object during the setup phase.
virtual IVector	getReferences ()
	Return a vector of all pointers to Interfaced objects used in this object.
virtual void	rebind (const TranslationMap &)
	Rebind pointer to other Interfaced objects.
	InterfacedBase ()
	Protected default constructor.
	InterfacedBase (string newName)
	Protected constructor with the name given as argument.
	InterfacedBase (const InterfacedBase &i)
	Protected copy-constructor.
Protected Member Functions inherited from ThePEG::Pointer::ReferenceCounted
	ReferenceCounted ()
	Default constructor.
	ReferenceCounted (const ReferenceCounted &)
	Copy-constructor.
ReferenceCounted &	operator= (const ReferenceCounted &)
	Assignment.
Protected Member Functions inherited from ThePEG::Named
const Named &	operator= (const Named &other)
	Assignment.
const string &	name (const string &newName)
	Set new name.

Standard Interfaced functions.
Energy	fixedScale
	Fixed scale.
double	fixedAEM
	Fixed \(\alpha_{EM}\).
double	fixedAS
	Fixed \(\alpha_S\).
map< string, double >	cuts
	New MadGraph files contain suitable information about cuts used in the generation.
bool	doInitCuts
	If true, cuts may be extracted from the event file during initialization.
static ClassDescription< MadGraphReader >	initMadGraphReader
	Describe a concrete class with persistent data.
virtual void	doinit ()
	Initialize this object after the setup phase before saving an EventGenerator to disk.
CutsPtr	initCuts ()
	Called from doinit() to extract cuts from the event file and add the corresponding objects to the current EventGenerator.
virtual void	initPDFs ()
	Called from LesHouchesReader::doinit() to extract PDFs from the event file and add the corresponding objects to the current EventGenerator.
virtual bool	preInitialize () const
	Return true if this object needs to be initialized before all other objects because it needs to extract cuts from the event file.
virtual void	dofinish ()
	Finalize this object.
string	scanCuts (string)
	Interface function to scan a madgraph file and extract information about used cuts.
long	numberOfEvents (string)
	Function to extract the number of events from a string.
MadGraphReader &	operator= (const MadGraphReader &)=delete
	Private and non-existent assignment operator.

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 ()
	Standard Init function used to initialize the interfaces.

Additional Inherited Members
Public Types inherited from ThePEG::InterfacedBase
enum	InitState { initializing = -1 , uninitialized = 0 , initialized = 1 , runready = 2 }
	Enumeration reflecting the state of an InterfacedBase object. More...
Public Types inherited from ThePEG::Pointer::ReferenceCounted
typedef unsigned int	CounterType
	The integer type used for counting.
Public Types inherited from ThePEG::LastXCombInfo< XC >
typedef ThePEG::Ptr< XC >::pointer	XCPtr
	Alias for a reference counted pointer to XC .
typedef ThePEG::Ptr< XC >::const_pointer	cXCPtr
	Alias for a reference counted pointer to a const XC .
typedef ThePEG::Ptr< XC >::transient_pointer	tXCPtr
	Alias for a transient pointer to XC .
typedef ThePEG::Ptr< XC >::transient_const_pointer	tcXCPtr
	Alias for a transient pointer to a const XC .
Static Public Member Functions inherited from ThePEG::LesHouchesFileReader
static void	Init ()
	Standard Init function used to initialize the interfaces.
Static Public Member Functions inherited from ThePEG::LesHouchesReader
static size_t	eventSize (int N)
	Return the size of this event in bytes.
static void	Init ()
	Standard Init function used to initialize the interfaces.
Static Public Member Functions inherited from ThePEG::HandlerBase
static void	Init ()
	Standard Init function used to initialize the interface.
Static Public Member Functions inherited from ThePEG::Interfaced
static void	Init ()
	Standard Init function.
Static Public Member Functions inherited from ThePEG::InterfacedBase
static void	Init ()
	Standard Init function.
Static Public Member Functions inherited from ThePEG::Base
static void	Init ()
	The standard Init function used to initialize the interfaces.
Public Attributes inherited from ThePEG::LesHouchesReader
vector< string >	optionalWeightsNames
	vector with the optional weights names
Public Attributes inherited from ThePEG::Pointer::ReferenceCounted
const unsigned long	uniqueId
	The unique ID.
Static Protected Member Functions inherited from ThePEG::LesHouchesReader
template<typename T >
static char *	mwrite (char *pos, const T &t, size_t n=1)
	Helper function to write a variable to a memory location.
template<typename T >
static const char *	mread (const char *pos, T &t, size_t n=1)
	Helper function to read a variable from a memory location.
Static Protected Member Functions inherited from ThePEG::Interfaced
static void	registerRepository (IBPtr)
	Register an Interfaced object with the Repository.
static void	registerRepository (IBPtr, string newName)
	Register an Interfaced object with the Repository, giving it a name.
Protected Attributes inherited from ThePEG::LesHouchesFileReader
CFileLineReader	cfile
	The wrapper around the C FILE stream from which to read.
long	neve
	The number of events in this file.
long	ieve
	The current event number.
string	LHFVersion
	If the file is a standard Les Houches formatted file (LHF) this is its version number.
string	outsideBlock
	If LHF.
string	headerBlock
	If LHF.
string	initComments
	If LHF.
map< string, string >	initAttributes
	If LHF.
string	eventComments
	If LHF.
map< string, string >	eventAttributes
	If LHF.
Protected Attributes inherited from ThePEG::LesHouchesReader
HEPRUP	heprup
	The HEPRUP common block.
HEPEUP	hepeup
	The HEPEUP common block.
tcPDPair	inData
	The ParticleData objects corresponding to the incoming particles.
pair< PDFPtr, PDFPtr >	inPDF
	The PDFBase objects which has been used for the beam particle when generating the events being read.
pair< cPDFPtr, cPDFPtr >	outPDF
	The PDFBase object to be used in the subsequent generation.
PExtrPtr	thePartonExtractor
	The PartonExtractor object used to construct remnants.
tCascHdlPtr	theCKKW
	A pointer to a CascadeHandler to be used for CKKW-reweighting.
PartonPairVec	thePartonBins
	The pairs of PartonBin objects describing the partons which can be extracted by the PartonExtractor object.
XCombMap	theXCombs
	The map of XComb objects indexed by the corresponding PartonBin pair.
CutsPtr	theCuts
	The Cuts object to be used for this reader.
long	theNEvents
	The number of events in this reader.
long	position
	The number of events produced by this reader so far.
int	reopened
	The number of times this reader has been reopened.
long	theMaxScan
	The maximum number of events to scan to collect information about processes and cross sections.
bool	scanning
	Flag to tell whether we are in the process of scanning.
bool	isActive
	True if this is an active reader.
string	theCacheFileName
	Name of file used to cache the events form the reader in a fast-readable form.
bool	doCutEarly
	Determines whether to apply cuts to events before converting them to ThePEG format.
XSecStat	stats
	Collect statistics for this reader.
StatMap	statmap
	Collect statistics for each individual process.
PBIPair	thePartonBinInstances
	The pair of PartonBinInstance objects describing the current incoming partons in the event.
ObjectIndexer< long, ColourLine >	colourIndex
	Association between ColourLines and colour indices in the current translation.
ObjectIndexer< long, Particle >	particleIndex
	Association between Particles and indices in the current translation.
PPair	theBeams
	The instances of the beam particles for the current event.
PPair	theIncoming
	The instances of the incoming particles to the sub process for the current event.
PVector	theOutgoing
	The instances of the outgoing particles from the sub process for the current event.
PVector	theIntermediates
	The instances of the intermediate particles in the sub process for the current event.
CFile	theCacheFile
	File stream for the cache.
ReweightVector	reweights
	The reweight objects modifying the weights of this reader.
ReweightVector	preweights
	The preweight objects modifying the weights of this reader.
double	preweight
	The factor with which this reader was last pre-weighted.
bool	reweightPDF
	Should the event be reweighted by PDFs used by the PartonExtractor?
bool	doInitPDFs
	Should PDFBase objects be constructed from the information in the event file in the initialization?
int	theMaxMultCKKW
	If this reader is to be used (possibly together with others) for CKKW reweighting and veto, this should give the multiplicity of outgoing particles in the highest multiplicity matrix element in the group.
int	theMinMultCKKW
	If this reader is to be used (possibly together with others) for CKKW reweighting and veto, this should give the multiplicity of outgoing particles in the lowest multiplicity matrix element in the group.
double	lastweight
	The weight multiplying the last read event due to PDF reweighting, CKKW reweighting or assigned reweight and preweight objects.
map< string, double >	optionalWeights
	The optional weights associated to the last read events.
long	LHEeventnum
	The event number.
double	maxFactor
	If the maximum cross section of this reader has been increased with increaseMaxXSec(), this is the total factor with which it has been increased.
int	optionalnpLO
	npLO for LesHouches merging
int	optionalnpNLO
	npNLO for LesHouches merging
CrossSection	weightScale
	The (reweighted) XWGTUP value should be scaled with this cross section when compared to the overestimated cross section.
vector< double >	xSecWeights
	Individual scales for different sub-processes if reweighted.
map< int, double >	maxWeights
	Individual maximum weights for individual (possibly reweighted) processes.
bool	skipping
	Is set to true when getEvent() is called from skip(int).
unsigned int	theMomentumTreatment
	Option for the treatment of the momenta supplied.
bool	useWeightWarnings
	Set to true if warnings about possible weight incompatibilities should be issued.
bool	theReOpenAllowed
	Option to allow reopening of the file.
bool	theIncludeSpin
	Use the spin information.
Protected Attributes inherited from ThePEG::LastXCombInfo< XC >
XCPtr	theLastXComb
	The pointer to the last selected XComb.

Detailed Description

MadGraphReader inherits from LesHouchesFileReader and is able to read event files produced by the MadGraph/MadEvent program.

See also

The interfaces defined for MadGraphReader.

Definition at line 24 of file MadGraphReader.h.

Constructor & Destructor Documentation

MadGraphReader()

ThePEG::MadGraphReader::MadGraphReader ( )

inline

Default constructor.

Definition at line 33 of file MadGraphReader.h.

Member Function Documentation

clone()

virtual IBPtr ThePEG::MadGraphReader::clone ( ) const

protectedvirtual

Make a simple clone of this object.

Returns

a pointer to the new object.

Reimplemented from ThePEG::LesHouchesFileReader.

dofinish()

virtual void ThePEG::MadGraphReader::dofinish ( )

inlineprotectedvirtual

Finalize this object.

Called in the run phase just after a run has ended. Used eg. to write out statistics.

Reimplemented from ThePEG::LesHouchesReader.

Definition at line 141 of file MadGraphReader.h.

References ThePEG::XSecStat::accepted(), ThePEG::InterfacedBase::dofinish(), ThePEG::LesHouchesReader::stats, and ThePEG::Interfaced::useMe().

doinit()

virtual void ThePEG::MadGraphReader::doinit ( )

protectedvirtual

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

Exceptions

InitException

if object could not be initialized properly.

Reimplemented from ThePEG::LesHouchesFileReader.

doReadEvent()

virtual bool ThePEG::MadGraphReader::doReadEvent ( )

virtual

Read the next event form the file or stream into the corresponding protected variables.

Return false if there is no more events.

Reimplemented from ThePEG::LesHouchesFileReader.

fullclone()

virtual IBPtr ThePEG::MadGraphReader::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::LesHouchesFileReader.

initPDFs()

virtual void ThePEG::MadGraphReader::initPDFs ( )

protectedvirtual

Called from LesHouchesReader::doinit() to extract PDFs from the event file and add the corresponding objects to the current EventGenerator.

Reimplemented from ThePEG::LesHouchesReader.

open()

virtual void ThePEG::MadGraphReader::open ( )

virtual

Open a file or stream with events and read in the run information into the corresponding protected variables.

Reimplemented from ThePEG::LesHouchesFileReader.

persistentInput()

void ThePEG::MadGraphReader::persistentInput	(	PersistentIStream &	is,
		int	version
	)

Function used to read in object persistently.

Parameters

is	the persistent input stream read from.
version	the version number of the object when written.

persistentOutput()

void ThePEG::MadGraphReader::persistentOutput

(

PersistentOStream &

os

)

const

Function used to write out object persistently.

Parameters

os	the persistent output stream written to.

preInitialize()

virtual bool ThePEG::MadGraphReader::preInitialize ( ) const

protectedvirtual

Return true if this object needs to be initialized before all other objects because it needs to extract cuts from the event file.

Reimplemented from ThePEG::LesHouchesFileReader.

scan()

virtual long ThePEG::MadGraphReader::scan ( )

virtual

Scan the file or stream to obtain information about cross section weights and particles etc.

This function should fill the variables corresponding to the /HEPRUP/ common block. The function returns the number of events scanned. This version calls the base class function and the readjusts the values in HEPRUP to cure some inconsistencies in the MadGraph files.

Reimplemented from ThePEG::LesHouchesReader.

scanCuts()

string ThePEG::MadGraphReader::scanCuts ( string  )

protected

Interface function to scan a madgraph file and extract information about used cuts.

The corresponding cut objects are created in the Repository and assigned to this reader.

Member Data Documentation

cuts

map<string,double> ThePEG::MadGraphReader::cuts

protected

New MadGraph files contain suitable information about cuts used in the generation.

The non-zero ones are stored in this map.

Definition at line 188 of file MadGraphReader.h.

doInitCuts

bool ThePEG::MadGraphReader::doInitCuts

protected

If true, cuts may be extracted from the event file during initialization.

Definition at line 193 of file MadGraphReader.h.

fixedAEM

double ThePEG::MadGraphReader::fixedAEM

protected

Fixed \(\alpha_{EM}\).

Old MadGraph files do not necessarily contain information about the value of \(\alpha_{EM}\). In this case this is used instead.

Definition at line 175 of file MadGraphReader.h.

fixedAS

double ThePEG::MadGraphReader::fixedAS

protected

Fixed \(\alpha_S\).

Old MadGraph files do not necessarily contain information about the value of \(\alpha_S\). In this case this is used instead.

Definition at line 182 of file MadGraphReader.h.

fixedScale

Energy ThePEG::MadGraphReader::fixedScale

protected

Fixed scale.

Old MadGraph files do not necessarily contain information about the factorization (or renormalization) scale. In this case this is used instead.

Definition at line 168 of file MadGraphReader.h.

initMadGraphReader

ClassDescription<MadGraphReader> ThePEG::MadGraphReader::initMadGraphReader

staticprivate

Describe a concrete class with persistent data.

Definition at line 208 of file MadGraphReader.h.

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

• MadGraphReader.h