Bai M, Allgower C, Ahrens L, Alessi J, Brown K, Bunce G, Cameron P, Chu CM, Courant ED, Glenn JW, Huang H, Jeon D, Kponou AE, Krueger K, Luccio A, Makdisi YI, Lee SY, Ratner L, Reece K, Roser T, Spinka H, Syphers MJ, Tsoupas N, Underwood DG, Williams N. Observation of a hybrid spin resonance.
PHYSICAL REVIEW LETTERS 2000;
84:1184-1187. [PMID:
11017474 DOI:
10.1103/physrevlett.84.1184]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/1999] [Indexed: 05/23/2023]
Abstract
A new type of spin depolarization resonance has been observed at the Brookhaven Alternating Gradient Synchrotron (AGS). This spin resonance is identified as a strong closed-orbit sideband around the dominant intrinsic spin resonance. The strength of the resonance was proportional to the 9th harmonic component of the horizontal closed orbit and proportional to the vertical betatron oscillation amplitude. This "hybrid" spin resonance cannot be overcome by the partial snake at the AGS, but it can be corrected by the harmonic orbit correctors.
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