Acceleration and storage of polarized proton beam at RHIC

Roser, Thomas
June 2000
AIP Conference Proceedings;2000, Vol. 512 Issue 1, p213
Academic Journal
High energy polarized beam collisions will open up the unique physics opportunities of studying spin effects in hard processes. However, the acceleration of polarized beams in circular accelerators is complicated by the numerous depolarizing spin resonances. Using a partial Siberian Snake and a rf dipole that ensure stable adiabatic spin motion during acceleration has made it possible to accelerate polarized protons to 25 GeV at the Brookhaven AGS. Full Siberian Snakes and polarimeters are being developed for RHIC to make the acceleration of polarized protons to 250 GeV possible. Spin rotators around two RHIC interaction regions will allow for the collision of longitudinally polarized protons at the STAR and PHENIX detectors. © 2000 American Institute of Physics.


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