jsci.physics.particles

Class Photon

java.lang.Object

jsci.physics.Particle

jsci.physics.RelativisticParticle

jsci.physics.quantum.QuantumParticle

jsci.physics.particles.GaugeBoson

jsci.physics.particles.Photon

All Implemented Interfaces:

java.io.Serializable

public final class Photon
extends GaugeBoson

A class representing photons.

See Also:

Serialized Form

Field Summary

Fields inherited from class jsci.physics.quantum.QuantumParticle

spinZ

Fields inherited from class jsci.physics.RelativisticParticle

momentum, position

Constructor Summary

Constructors

Constructor and Description
Photon() Constructs a photon.

Method Summary

Modifier and Type	Method and Description
QuantumParticle	anti() Returns the antiparticle of this particle.
int	charge() Returns the electric charge.
boolean	isAnti(QuantumParticle qp) Returns true if qp is the antiparticle.
double	restMass() Returns the rest mass (MeV).
int	spin() Returns the number of 1/2 units of spin.
java.lang.String	toString() Returns a string representing this class.

Methods inherited from class jsci.physics.particles.GaugeBoson

baryonQN, eLeptonQN, isospin, isospinZ, muLeptonQN, strangeQN, tauLeptonQN

Methods inherited from class jsci.physics.RelativisticParticle

equals, hashCode

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Photon

public Photon()

Constructs a photon.

Method Detail

restMass

public double restMass()

Returns the rest mass (MeV).

Specified by:

restMass in class RelativisticParticle

Returns:

0.0

spin

public int spin()

Returns the number of 1/2 units of spin.

Specified by:

spin in class QuantumParticle

Returns:

2

charge

public int charge()

Returns the electric charge.

Specified by:

charge in class QuantumParticle

Returns:

0

anti

public QuantumParticle anti()

Returns the antiparticle of this particle.

Specified by:

anti in class QuantumParticle

isAnti

public boolean isAnti(QuantumParticle qp)

Returns true if qp is the antiparticle.

Specified by:

isAnti in class QuantumParticle

toString

public java.lang.String toString()

Returns a string representing this class.

Overrides:

toString in class java.lang.Object