Resonance method of electric-dipole-moment measurements in storage rings

Abstract

A resonance method of measuring the electric dipole moment (EDM) of nuclei in storage rings is described, based on two new ideas: (1) Oscillating particles' velocities in resonance with spin precession, and (2) alternately producing two sub-beams with different betatron tunes--one sub-beam to amplify and thus make it easier to correct ring imperfections that produce false signals imitating EDM signals, and the other to make the EDM measurement.

Comments: 10 pages, 1 figure, accepted for publication in Phys. Rev. Lett., Spring 2006