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

Here, 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.
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Publication Date:
OSTI Identifier:
1354641
Report Number(s):
BNL-113784-2017-JA
Journal ID: ISSN 0031-9007; PRLTAO; R&D Project: Po-022; KA2201020
Grant/Contract Number:
SC0012704; 2015VMA076; SC0012709; IBS-R017-D1-2016-a00; 16-12-10151
Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 117; Journal Issue: 5; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); Russian Science Foundation; South Korean Institute for Basic Sciences (KAIST); Chinese Academy of Sciences (CAS); European Union (EU); Shota Rustaveli National Science Foundation of the Republic of Georgia
Contributing Orgs:
JEDI Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; deuterons; polarization; beam; magnetic