Experimental Verification of Predicted Oscillations Near a Spin Resonance

Conference · Tue Dec 06 00:00:00 EST 2011 · AIP Conf.Proc.1149:801-804,2009

OSTI ID:1030938

Morozov, V S; Chao, A W; Krisch, A D; Leonova, M A; Raymond, R S; Sivers, D W; Wong, V K; Ganshvili, A; Gebel, R; Lehrach, A; Lorentz, B; Maier, R; Prasuhn, D; Stockhorst, H; Welsch, D; Hinterberger, F; Ulbrich, K; Schnase, A; Stephenson, E J; Brantjes, N P.M. ; Onderwater, C J.G.

The Chao matrix formalism allows analytic calculations of a beam's polarization behavior inside a spin resonance. We recently tested its prediction of polarization oscillations occurring in a stored beam of polarized particles near a spin resonance. Using a 1.85?GeV/c polarized deuteron beam stored in COSY, we swept a new rf solenoid's frequency rather rapidly through 400 Hz during 100 ms, while varying the distance between the sweep's end frequency and the central frequency of an rf-induced spin resonance. Our measurements of the deuteron's polarization for sweeps ending near and inside the resonance agree with the Chao formalism's predicted oscillations.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 1030938
• Report Number(s): SLAC-REPRINT-2011-121; TRN: US201124%%547
• Journal Information: AIP Conf.Proc.1149:801-804,2009, Conference: Prepared for 18th International Spin Physics Symposium (SPIN 2008), Charlottesville, Virginia, 6-11 Oct 2008
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DEUTERON BEAMS
FORECASTING
OSCILLATIONS
PHYSICS
POLARIZATION
RESONANCE
SPIN
VERIFICATION
Experiment-HEP
HEPEX