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

Abstract : 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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Submitted on : Monday, August 1, 2016 - 10:37:46 AM
Last modification on : Thursday, April 11, 2019 - 11:14:02 AM

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G. Guidoboni, E. Stephenson, S. Andrianov, W. Augustyniak, Z. Bagdasarian, et al.. How to Reach a Thousand-Second in-Plane Polarization Lifetime with 0.97−GeV/c Deuterons in a Storage Ring. Physical Review Letters, American Physical Society, 2016, 117, pp.054801 ⟨10.1103/PhysRevLett.117.054801⟩. ⟨in2p3-01350647⟩

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