hep.physics.jets
Class EventShape

java.lang.Object
  |
  +--hep.physics.jets.EventShape

public class EventShape

extends java.lang.Object

Event Shape and Thrust utilities This is a transcription of the Jetset thrust and event shape finders into Java. To facilitate comparison with the Jetset fortran routines and to follow standard physics conventions arrays that represent the x, y and z components of momentum and the x, y and z axes are indexed from 1 to 3 instead of 0 to 2. Arrays of particles, workspace, etc are indexed from 0 following normal Java conventions.

Constructor Summary

EventShape()
Call this to input a new event to the event shape routines.

Method Summary

int	getFast()
double	getThMomPower()
BasicHep3Vector	majorAxis()
BasicHep3Vector	minorAxis()
double	oblateness()
void	setEvent(java.util.Enumeration e)
void	setEvent(java.util.Enumeration e, Predicate cut) Call this to input a new event to the event shape routines.
void	setFast(int nf)
void	setThMomPower(double tp)
BasicHep3Vector	thrust()
BasicHep3Vector	thrustAxis()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

EventShape

public EventShape()

Call this to input a new event to the event shape routines.

Parameters:

e - An Enumeration of either HepLorentzVectors (HepLorentzVectors) or Hep3Vectors

Method Detail

setEvent

public void setEvent(java.util.Enumeration e)

setEvent

public void setEvent(java.util.Enumeration e,
                     Predicate cut)

Call this to input a new event to the event shape routines. Only elements of the enumeration which are accepted by the predicate will be used for jet finding.

Parameters:

e - An Enumeration of either HepLorentzVectors (HepLorentzVectors) or Hep3Vectors

cut - A predicate that is applied to each element of e, or null to accept all elements

setThMomPower

public void setThMomPower(double tp)

getThMomPower

public double getThMomPower()

setFast

public void setFast(int nf)

getFast

public int getFast()

thrustAxis

public BasicHep3Vector thrustAxis()

majorAxis

public BasicHep3Vector majorAxis()

minorAxis

public BasicHep3Vector minorAxis()

thrust

public BasicHep3Vector thrust()

oblateness

public double oblateness()