Class to store general Event setup, i.e. Phase space and weights. More...

#include <Event.hh>

Collaboration diagram for HEJ::Event::EventData:

Public Member Functions
	EventData ()=default
	Default Constructor. More...

	EventData (LHEF::HEPEUP const &hepeup)
	Constructor from LesHouches event information. More...

	EventData (std::array< Particle, 2 > incoming, std::vector< Particle > outgoing, std::unordered_map< std::size_t, std::vector< Particle > > decays, Parameters< EventParameters > parameters)
	Constructor with all values given. More...

Event	cluster (fastjet::JetDefinition const &jet_def, double min_jet_pt)
	Generate an Event from the stored EventData. More...

Event	operator() (fastjet::JetDefinition const &jet_def, double const min_jet_pt)
	Alias for cluster() More...

void	sort ()
	Sort particles in rapidity. More...

void	reconstruct_intermediate (EWConstants const &)
	Reconstruct intermediate particles from final-state leptons. More...

void	repair_momenta (double tolerance)
	Repair momenta of massless particles. More...

Public Attributes
std::array< Particle, 2 >	incoming
	Incoming particles. More...

std::vector< Particle >	outgoing
	Outcoing particles. More...

std::unordered_map< std::size_t, std::vector< Particle > >	decays
	Particle decays in the format {outgoing index, decay products}. More...

Parameters< EventParameters >	parameters
	Parameters, e.g. scale or inital weight. More...

Detailed Description

Class to store general Event setup, i.e. Phase space and weights.

Constructor & Destructor Documentation

◆ EventData() [1/3]

HEJ::Event::EventData::EventData ( )

default

Default Constructor.

◆ EventData() [2/3]

HEJ::Event::EventData::EventData ( LHEF::HEPEUP const & hepeup )

Constructor from LesHouches event information.

◆ EventData() [3/3]

HEJ::Event::EventData::EventData	(	std::array< Particle, 2 >	incoming,
		std::vector< Particle >	outgoing,
		std::unordered_map< std::size_t, std::vector< Particle > >	decays,
		Parameters< EventParameters >	parameters
	)

inline

Constructor with all values given.

Member Function Documentation

◆ cluster()

Event HEJ::Event::EventData::cluster	(	fastjet::JetDefinition const &	jet_def,
		double	min_jet_pt
	)

Generate an Event from the stored EventData.

Do jet clustering and classification. Use this to generate an Event.

Note: Calling this function destroys EventData

Parameters

jet_def	Jet definition
min_jet_pt	minimal \(p_T\) for each jet

Returns: Full clustered and classified event.

◆ operator()()

Event HEJ::Event::EventData::operator()	(	fastjet::JetDefinition const &	jet_def,
		double const	min_jet_pt
	)

inline

Alias for cluster()

◆ reconstruct_intermediate()

void HEJ::Event::EventData::reconstruct_intermediate ( EWConstants const & )

Reconstruct intermediate particles from final-state leptons.

Final-state leptons are created from virtual photons, W, or Z bosons. This function tries to reconstruct such intermediate bosons if they are not part of the event record.

◆ repair_momenta()

void HEJ::Event::EventData::repair_momenta ( double tolerance )

Repair momenta of massless particles.

This function changes the momenta of massless particles as follows:

Close-to-zero incoming transverse momenta are set to zero.
Nearly on-shell momenta are made lightlike by rescaling energy and spatial components. This rescaling is applied to both incoming and outgoing particles, including decay products.

◆ sort()

void HEJ::Event::EventData::sort ( )

Sort particles in rapidity.

Member Data Documentation

◆ decays

std::unordered_map<std::size_t, std::vector<Particle> > HEJ::Event::EventData::decays

Particle decays in the format {outgoing index, decay products}.

◆ incoming

std::array<Particle, 2> HEJ::Event::EventData::incoming

Incoming particles.

◆ outgoing

std::vector<Particle> HEJ::Event::EventData::outgoing

Outcoing particles.

◆ parameters

Parameters<EventParameters> HEJ::Event::EventData::parameters

Parameters, e.g. scale or inital weight.

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

/home/andersen/HEJProjects/website/build/hej/include/HEJ/Event.hh

Public Member Functions

Public Attributes