JSci.physics.particles.XiPlus Maven / Gradle / Ivy
package JSci.physics.particles;
import JSci.physics.quantum.QuantumParticle;
/**
* A class representing xi+.
* @version 1.5
* @author Mark Hale
*/
public final class XiPlus extends AntiXi {
/**
* Constructs a xi+.
*/
public XiPlus() {}
/**
* Returns the rest mass (MeV).
* @return 1321.31
*/
public double restMass() {return 1321.31;}
/**
* Returns the number of 1/2 units of the z-component of isospin.
* @return 1
*/
public int isospinZ() {return 1;}
/**
* Returns the electric charge.
* @return 1
*/
public int charge() {return 1;}
/**
* Returns the quark composition.
*/
public QuantumParticle[] quarks() {
QuantumParticle comp[]={new AntiDown(),new AntiStrange(),new AntiStrange()};
return comp;
}
/**
* Returns the antiparticle of this particle.
*/
public QuantumParticle anti() {
return new XiMinus();
}
/**
* Returns true if qp is the antiparticle.
*/
public boolean isAnti(QuantumParticle qp) {
return (qp!=null) && (qp instanceof XiMinus);
}
/**
* Returns a string representing this class.
*/
public String toString() {
return new String("Xi+");
}
}