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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Physical Review Letters, American Physical Society, 2016, 117, pp.054801 〈10.1103/PhysRevLett.117.054801〉
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http://hal.in2p3.fr/in2p3-01350647
Contributeur : Emmanuelle Vernay <>
Soumis le : lundi 1 août 2016 - 10:37:46
Dernière modification le : mardi 22 mai 2018 - 21:48:11

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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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