Reprint Server

How to Reach a Thousand-Second In-Plane Polarization Lifetime with 0.97-GeV/c Deuterons in a Storage Ring


We observe a deuteron beam polarization lifetime near 1000 s in the horizontal plane of a magnetic storage ring (COSY). This long spin coherence time is maintained through a combination of beam bunching, electron cooling, sextupole field corrections, and the suppression of collective effects through beam current limits. This record lifetime is required for a storage ring search for an intrinsic electric dipole moment on the deuteron at a statistical sensitivity level approaching 10-29 e cm.

G. Guidoboni et al. (JEDI Collaboration), Physical Review Letters 117 (2016) 054801


Click on the icon to download the corresponding file.

Download Adobe PDF version (463534 Bytes).

Go Back to the reprint server.
Go Back to the home page.

This page is maintained by Kyoko Makino. Please contact her if there are any problems with it.