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arXiv · 1201.5773

Precursor Experiments to Search for Permanent Electric Dipole Moments (EDMs) of Protons and Deuterons at COSY

Andreas Lehrach·Bernd Lorentz·William Morse·Nikolai Nikolaev·Frank Rathmann
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Abstract

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.

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Andreas Lehrach, Bernd Lorentz, William Morse, Nikolai Nikolaev, Frank Rathmann. 2012-01-27. Precursor Experiments to Search for Permanent Electric Dipole Moments (EDMs) of Protons and Deuterons at COSY. https://arxiv.org/abs/1201.5773

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