Experiments to Detect a Permanent Electric Dipole Moment, Laser Trapping and Cooling, Atomic and Molecular Spectroscopy

Dr. Harvey A. Gould, LBNL, Berkeley, CA

Electric dipole moment (EDM) experiments search for new sources of charge-parity (CP) symmetry-violation that are not contained in the Standard Model. Although they are predicted by most extensions of the Standard Model, no EDM of any particle and no CP-violation outside the Standard Model has yet been observed.

Neutron EDM, atomic (nucleus) EDM, and electron EDM experiments, all search for an interaction energy that is linear in applied electric field. All forms of EDM experiments are necessary and complimentary. They are also very challenging and are increasingly being done at national laboratories. A demonstration electron EDM experiment, using a fountain of cold cesium atoms has recently been completed at LBNL and a full scale experiment is planned.

The P/T Colloquium is
typically held each
Thursday, 3:45–5:00 PM.

Collaborations 3:15 PM.