Improved limit on the permanent electric dipole moment of 199Hg
Atomic Physics
2009-03-11 v2
Abstract
We report the results of a new experimental search for a permanent electric dipole moment of 199Hg utilizing a stack of four vapor cells. We find d(199Hg) = (0.49 \pm 1.29_stat \pm 0.76_syst) x 10^{-29} e cm, and interpret this as a new upper bound, |d(199Hg)| < 3.1 x 10^{-29} e cm (95% C.L.). This result improves our previous 199Hg limit by a factor of 7, and can be used to set new constraints on CP violation in physics beyond the standard model.
Keywords
Cite
@article{arxiv.0901.2328,
title = {Improved limit on the permanent electric dipole moment of 199Hg},
author = {W. C. Griffith and M. D. Swallows and T. H. Loftus and M. V. Romalis and B. R. Heckel and E. N. Fortson},
journal= {arXiv preprint arXiv:0901.2328},
year = {2009}
}
Comments
4 pages, 4 figures. additional reference, minor edits in response to reviewer comments