hep.physics.jet
Interface JetFinder

All Known Implementing Classes:

AbstractJetFinder, FixNumberOfJetsFinder

public interface JetFinder

Interface to be implemented by all jet finders

Version:

12/16/98

Author:

Gary Bower

Source Code:

JetFinder.java

Method Summary

int	fewestTracks() Find the jet with the fewest particles
HepLorentzVector	jet(int index) calculate 4 vector sum for a jet
int	njets() The number of jets found
int	nParticlesPerJet(int index) Find out many particles are in a particular jet
List	particlesInJet(int index) Find out which particles are in a paricular jet
void	setEvent(Collection data) Set the current event data
void	setEvent(Collection data, Predicate cut) Set the current event data

Method Detail

njets

public int njets()

The number of jets found

Returns:

The number of jets found

jet

public HepLorentzVector jet(int index)

calculate 4 vector sum for a jet

Parameters:

index - The index of the jet of interest

Returns:

The 4 vector of the jet

particlesInJet

public List particlesInJet(int index)

Find out which particles are in a paricular jet

Parameters:

index - The index of the jet of interest

Returns:

An enumeration of the particles within the jet

nParticlesPerJet

public int nParticlesPerJet(int index)

Find out many particles are in a particular jet

Parameters:

index - The index of the jet of interest

Returns:

The number of particles

fewestTracks

public int fewestTracks()

Find the jet with the fewest particles

Returns:

Returns the number of tracks in the jet with the fewest tracks

setEvent

public void setEvent(Collection data)

Set the current event data

setEvent

public void setEvent(Collection data,
                     Predicate cut)

Set the current event data

Parameters:

cut - Only elements of e that are accepted by this predicate will be used in the jet finding