Particles

particle.java

public enum ElementaryParticle {
  // Quarks
  
  QUARK_UP("Up Quark", "u", 2.3E+06, +1/2, +2/3),
  QUARK_DOWN("Down Quark", "d", 4.8E+06, +1/2, -1/3),
  
  QUARK_CHARM("Charm Quark", "c", 1.275E+09, +1/2, +2/3),
  QUARK_STRANGE("Strange Quark", "s", 95E+06, 1/2, -1/3),
  
  QUARK_TOP("Top Quark", "t", 173.07E+06, +1/2, +2/3),
  QUARK_BOTTOM("Bottom Quark", "b", 4.18E+06, +1/2, -1/3),
  
  //Leptons
  
  LEPTON_ELECTRON("Electron", "e", 0.511E+06, +1/2, -1),
  LEPTON_ELECTRON_NEUTRINO("Electron Neutrino", "v_e", 2.2, +1/2, 0),
  
  LEPTON_MUON("Muon", "µ", 105.7E+06, +1/2, -1),
  LEPTON_MUON_NEUTRINO("Muon Neutrino", "v_µ", 0.17E+06, +1/2, 0),
  
  LEPTON_TAU("Tau", "\tau", 1.777E+09, +1/2, -1),
  LEPTON_TAU_NEUTRINO("Tau Neutrino", "v_\tau", 15.5E+06, +1/2, 0),
  
  // Gauge Bosons
  
  BOSON_GLUON("Gluon", "g", 0, +1, 0),
  BOSON_PHOTON("Photon", "\gamma", 0, +1, 0),
  BOSON_Z("Z Boson", "Z", 91.2E+09, +1, 0),
  BOSON_W+("W+ Boson", "W+", 80.4E+09, +1, 0),
  BOSON_W-("W- Boson", "W-", 80.4E+09, -1, 0),
  
  BOSON_HIGGS("Higgs Boson", "H", 126E+09, 0, 0),
  
  public final String name;
  public final String symbol;
  
  public final float mass;            // in ev/c²
  public final float spin;
  public final float electric_charge;
  
  public ElementaryParticle(
                  final String name,
                  final String symbol,
                  final float mass,
                  final float spin,
                  final float electric_charge) {
    
    this.name = name;
    this.symbol = symbol;
    this.mass = mass;
    this.spin = spin;
    this.electric_charge = electric_charge;
  
  }
}