Colloquium on September 6, 2010

Gerald Gabrielse
Harvard University

Fundamental Physics with Low Energy Particles of Antimatter and Matter

The possibility to do fundamental physics with low energy particles of antimatter and matter will be illustrated with several examples. The magnetic moment of the electron is measured to 3 part in 10^{13} with one electron suspended by itself in a trap for months at a time, and the magnetic moment of a positron similarly suspended will soon be compared. Antihydrogen atoms are being prepared for precise laser spectroscopy. The extremely strong electric field within a diatomic molecule is being exploited to look for an electron's electric dipole moment.