STI Publications - View Publication Form #10605
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Publication Information
| Title | Higher-Order Spin Resonances in 2.1 GeV/c Polarized Proton Beam | ||||
| Abstract | Spin resonances can cause partial or full depolarization or spin-flip of a polarized beam. We studied 1st-, 2nd- and 3rd-order spin resonances with a 2.1 GeV/c vertically polarized proton beam stored in the COSY Cooler Synchrotron. We observed almost full spin-flip when crossing the 1st-order G*gamma=8?nu<sub>y</sub> vertical-betatron-tune spin resonance and partial depolarization near some 2nd- and 3rd-order resonances. We observed almost full depolarization near the 1st-order G*gamma=8?nu<sub>x</sub> horizontal spin resonance and partial depolarization near some 2nd- and 3rd-order resonances. Moreover, we found that a 2nd-order nu<sub>x</sub> resonance seems about as strong as some 3rd-order nu<sub>x</sub> resonances, while some 3rd-order nu<sub>y</sub> resonances seem much stronger than a 2nd-order nu<sub>y</sub> resonance. It was thought that, for flat accelerators, vertical spin resonances are stronger than horizontal, and lower order resonances are stronger than higher order ones | ||||
| Author(s) | M. Leonova, J. Askari, K. Gordon, Alan D. Krisch, J. Liu, D. Nees, R. Raymond, Dennis Sivers, V.K. Wong, Frank Hinterberger, Vasiliy Morozov | ||||
| Publication Date | March 2011 | ||||
| Document Type | Meeting, Proceedings | ||||
| Primary Institution | University of Michigan, Ann Arbor, MI | ||||
| Affiliation | Accelerator Ops, R&D / Cntr-Adv Studies of Acce / Ctr for Adv Stud of Accel | ||||
| Funding Source | |||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Meeting / Conference
| Meeting Name | PAC 2011 |
| Meeting Date | 3/28/2011 |
| Document Subtype | Paper (proceedings only) |
Proceedings
| Title | PAC 2011 |
| Editor(s) | Todd Satogata, Kevin Brown |
| Publisher | Jacow |
| Refereed | No |
| Page Number | 1716-1718 |
| Year | 2011 |
Attachments/Datasets/DOI Link
| Document(s) |
JLAB-ACC-11-1343.pdf
(STI Document)
|
| Dataset(s) | (none) |
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