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:

List of all members.

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.

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 Public Member Functions

static void Init ()

Standard Init function used to initialize the interfaces.

Protected Member Functions

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.

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.

Standard Interfaced functions.

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.

Protected Attributes

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.

Private Member Functions

MadGraphReader & operator= (const MadGraphReader &)

Private and non-existent assignment operator.

Static Private Attributes

static ClassDescription
< MadGraphReader > initMadGraphReader

Describe a concrete class with persistent data.

Classes

struct WeightedExcetion

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

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.

Member Function Documentation

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.

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.

void ThePEG::MadGraphReader::persistentOutput ( PersistentOStream & os ) const

Function used to write out object persistently.

Parameters:

os

the persistent output stream written to.

Reimplemented from ThePEG::LesHouchesFileReader.

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.

Reimplemented from ThePEG::LesHouchesFileReader.

virtual IBPtr ThePEG::MadGraphReader::clone ( ) const [protected, virtual]

Make a simple clone of this object.

Returns:: a pointer to the new object.

Reimplemented from ThePEG::LesHouchesFileReader.

virtual IBPtr ThePEG::MadGraphReader::fullclone ( ) const [protected, virtual]

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.

virtual void ThePEG::MadGraphReader::doinit ( ) [protected, virtual]

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::LesHouchesReader.

virtual void ThePEG::MadGraphReader::dofinish ( ) [inline, protected, virtual]

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::LesHouchesReader::dofinish(), ThePEG::LesHouchesReader::stats, and ThePEG::Interfaced::useMe().

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

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.

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.

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.

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.

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

MadGraphReader.h


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.
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 Public Member Functions
static void	Init ()
	Standard Init function used to initialize the interfaces.
Protected Member Functions
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.
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.
Standard Interfaced functions.
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.
Protected Attributes
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.
Private Member Functions
MadGraphReader &	operator= (const MadGraphReader &)
	Private and non-existent assignment operator.
Static Private Attributes
static ClassDescription < MadGraphReader >	initMadGraphReader
	Describe a concrete class with persistent data.
Classes
struct	WeightedExcetion
	Exception class used to inform about inability to work with some weighted event files. More...