org.jscience.physics.quantum.particles
Class PiMinus

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.AntiPion
                          extended by org.jscience.physics.quantum.particles.PiMinus
All Implemented Interfaces:
java.io.Serializable

public final class PiMinus
extends AntiPion

A class representing pi-.

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
PiMinus()
          Constructs a pi-.
 
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 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).
 java.lang.String toString()
          Returns a string representing this class.
 
Methods inherited from class org.jscience.physics.quantum.particles.AntiPion
isospin, strangeQN
 
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

PiMinus

public PiMinus()
Constructs a pi-.

Method Detail

restMass

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

Specified by:
restMass in class RelativisticParticle
Returns:
139.57018

charge

public int charge()
Returns the electric charge.

Specified by:
charge in class QuantumParticle
Returns:
-1

isospinZ

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

Specified by:
isospinZ in class QuantumParticle
Returns:
-2

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