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

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

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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

Author(s): Guidoboni G.; Stephenson E.; Andrianov S.; Augustyniak W.; Bagdasarian Z.; Bai M.; Baylac M.; Bernreuther W.; Bertelli S.; Berz M.; Böker J.; Böhme C.; Bsaisou J.; Chekmenev S.; Chiladze D.; Ciullo G.; Contalbrigo M.; De Conto J.-M.; Dymov S.; Engels R.; Esser F.M.; Eversmann D.; Felden O.; M. Gaisser; Gebel R.; Glückler H.; Goldenbaum F.; Grigoryev K.; Grzonka D.; Hahnraths T.; Heberling D.; Hejny V.; Hempelmann N.; Hetzel J.; Hinder F.; Hipple R.; Hölscher D.; Ivanov A.; Kacharava A.; Kamerdzhiev V.; Kamys B.; Keshelashvili I.; Khoukaz A.; Koop I.; Krause H.-J.; Krewald S.; Kulikov A.; Lehrach A.; Lenisa P.; Lomidze N.; Lorentz B.; Maanen P.; Macharashvili G.; Magiera A.; Maier R.; Makino K.; Mariański B.; McHedlishvili D.; Meißner U.-G.; Mey S.; Morse W.; Müller F.; Nass A.; Natour G.; Nikolaev N.; Nioradze M.; Nowakowski K.; Orlov Y.; Pesce A.; Prasuhn D.; Pretz J.; Rathmann F.; Ritman J.; Rosenthal M.; Rudy Z.; Saleev A.; Sefzick T.; Yannis K. Semertzidis; Senichev Y.; Shmakova V.; Silenko A.; Simon M.; Slim J.; Soltner H.; Stahl A.; Stassen R.; Statera M.; Stockhorst H.; Straatmann H.; Ströher H.; Tabidze M.; Talman R.; Thörngren Engblom P.; Trinkel F.; Trzciński A.; Uzikov Y.; Valdau Y.; Valetov E.; Vassiliev A.; Weidemann C.; Wilkin C.; Wrońska A.; Wüstner P.; Zakrzewska M.; Zuprański P.; Zyuzin D.

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. © 2016 American Physical Society