%0 Journal Article
%T Precursor Experiments to Search for Permanent Electric Dipole Moments (EDMs) of Protons and Deuterons at COSY
%A Andreas Lehrach
%A Bernd Lorentz
%A William Morse
%A Nikolai Nikolaev
%A Frank Rathmann
%J Physics
%D 2012
%I arXiv
%X In this presentation we discuss a number of experiments on the search for proton or deuteron EDMs, which could be carried out at COSY-Juelich. Most promising is the use of an radio-frequency radial electric field flipper that would lead to the accumulation of a CP violating in-plane beam polarization by tiny spin rotations. Most crucial for storage ring searches for EDMs is the spin-coherence time, and we report on analytic evaluations which point at a much larger spin-coherence time for deuterons by about a factor of 200 compared to the one for protons, and at COSY, the spin coherence time for deuterons could amount to about 10 000 s.
%U http://arxiv.org/abs/1201.5773v1