|
The mystery of why there is only matter in the Universe and no antimatter is
discussed. The LEP collider at CERN has shown that there are three species
of light neutrino and hence probably three families of leptons and quarks.
This links with the Sakharov criteria for matter-antimatter asymmetry, one
of which is that CP violation exists since CP violation in the Standard
Model requires the existence of three different quarks. The Standard Model
explanation of CP violation will be tested in B-meson decays in the BaBar
experiment at SLAC which has just begun.
|
