Mesons
Group: boson, hadron
Mesons are particles made of a quark and an antiquark. Apart from the top, every quark can occur. Therefore, 25 (5x5) different mesons and their anitparticles are possible, together with some quantum-mechanical states of superposition between up, down and strange quarks.
Matter and antimatter annihilate each other, so there are no stable mesons. They all decay rather quickly. Nevertheless, the pion plays an important role for the stability of atoms.
Page last changed on March 06. 2010
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↑ Particle Zoo: Atom, Fermions, Hadrons, Baryons, Proton, Neutron, Other Baryons, Quarks, Up-Quark, Down-Quark, Strange-Quark, Charm-Quark, Bottom-Quark, Top-Quark, Leptons, Electron, Muon, Tauon, Neutrinos, Electron-Neutrino, Muon-Neutrino, Tauon-Neutrino, Bosons, Mesons, Pion, Kaon, D-Meson, Other Mesons, Gauge Bosons, Photon, Gluon, W-Boson, Z-Boson, Graviton, Higgs-Boson, Antimatter, Dark Matter, Dark Energy
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