org.jscience.physics.quantum.particles
Class Eta

java.lang.Object
  extended by org.jscience.physics.Particle
      extended by org.jscience.physics.RelativisticParticle
          extended by org.jscience.physics.quantum.QuantumParticle
              extended by org.jscience.physics.quantum.particles.Hadron
                  extended by org.jscience.physics.quantum.particles.Meson
                      extended by org.jscience.physics.quantum.particles.Eta
All Implemented Interfaces:
java.io.Serializable

public final class Eta
extends Meson

A class representing etas.

See Also:
Serialized Form

Field Summary
 
Fields inherited from class org.jscience.physics.quantum.QuantumParticle
spinZ
 
Fields inherited from class org.jscience.physics.RelativisticParticle
momentum, position
 
Constructor Summary
Eta()
          Constructs an eta.
 
Method Summary
 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.
 int isospin()
          Returns the number of 1/2 units of isospin.
 int isospinZ()
          Returns the number of 1/2 units of the z-component of isospin.
 QuantumParticle[] quarks()
          Returns the quark composition.
 double restMass()
          Returns the rest mass (MeV).
 int strangeQN()
          Returns the strangeness number.
 java.lang.String toString()
          Returns a string representing this class.
 
Methods inherited from class org.jscience.physics.quantum.particles.Meson
baryonQN, spin
 
Methods inherited from class org.jscience.physics.quantum.particles.Hadron
eLeptonQN, muLeptonQN, tauLeptonQN
 
Methods inherited from class org.jscience.physics.RelativisticParticle
equals
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

Eta

public Eta()
Constructs an eta.

Method Detail

restMass

public double restMass()
Returns the rest mass (MeV).

Specified by:
restMass in class RelativisticParticle
Returns:
547.45

charge

public int charge()
Returns the electric charge.

Specified by:
charge in class QuantumParticle
Returns:
0

isospin

public int isospin()
Returns the number of 1/2 units of isospin.

Specified by:
isospin in class QuantumParticle
Returns:
0

isospinZ

public int isospinZ()
Returns the number of 1/2 units of the z-component of isospin.

Specified by:
isospinZ in class QuantumParticle
Returns:
0

strangeQN

public int strangeQN()
Returns the strangeness number.

Specified by:
strangeQN in class QuantumParticle
Returns:
0

quarks

public QuantumParticle[] quarks()
Returns the quark composition.


anti

public QuantumParticle anti()
Returns the antiparticle of this particle.

Specified by:
anti in class QuantumParticle
Returns:
DOCUMENT ME!

isAnti

public boolean isAnti(QuantumParticle qp)
Returns true if qp is the antiparticle.

Specified by:
isAnti in class QuantumParticle
Parameters:
qp - DOCUMENT ME!
Returns:
DOCUMENT ME!

toString

public java.lang.String toString()
Returns a string representing this class.

Overrides:
toString in class java.lang.Object