title:  New limit on the permanent electric dipole moment of atomic Hg 
abstract:
Experimental searches for permanent electric dipole moments (EDMs) 
provide extremely sensitive probes for physics beyond the standard 
model.  The three main classes of EDM searches are: measurements on 
bare neutrons; measurements on paramagnetic atoms or molecules,  
mainly sensitive to the electron EDM; and measurements on diamagnetic 
atoms, mainly sensitive to CP-violating interactions between 
nucleons.  The most sensitive diamagnetic experiment is performed on 
199Hg atoms at the University of Washington in Seattle.  A new 
measurement of the Hg EDM was recently completed resulting in an 
upper bound |d(Hg)| < 3.1x10^-29 e cm, a factor of seven improvement 
on the previous limit.  Details on the experimental technique and 
results will be given, along with theoretical implications of the new 
limit, and prospects for improvement.