This title appears in the Scientific Report :
2007
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevSTAB.10.041001 in citations.
Please use the identifier: http://hdl.handle.net/2128/11163 in citations.
Experimental test of the new analytic matrix formalism for spin dynamics
Experimental test of the new analytic matrix formalism for spin dynamics
We recently started testing Chao's proposed new matrix formalism for describing the spin dynamics due to a single spin resonance. The Chao formalism is probably the first fundamental improvement of the Froissart-Stora equation in that it allows analytic calculations of the beam polarization...
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Personal Name(s): | Krisch, A. D. |
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Leonova, M. A. / Morozov, V. S. / Raymond, R. S. / Sivers, D. W. / Wong, V. K. / Gebel, R. / Lehrach, A. / Lorentz, B. / Maier, R. / Prasuhn, D. / Schnase, A. / Stockhorst, H. / Hinterberger, F. / Ulrich, K. | |
Contributing Institute: |
Kernphysikalische Großgeräte; IKP-4 |
Published in: | Physical Review Special Topics - Accelerators and Beams Physical review accelerators and beams, 10 10 (2007 2007) 4 4, S. 041001 041001 |
Imprint: |
[S.l.] @
Soc.
2007
2007-04-18 2007-04-01 |
Physical Description: |
041001 |
DOI: |
10.1103/PhysRevSTAB.10.041001 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen und Kerne |
Series Title: |
Physical Review Special Topics, Accelerators and Beams
10 |
Subject (ZB): | |
Link: |
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Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/11163 in citations.
We recently started testing Chao's proposed new matrix formalism for describing the spin dynamics due to a single spin resonance. The Chao formalism is probably the first fundamental improvement of the Froissart-Stora equation in that it allows analytic calculations of the beam polarization's behavior inside a resonance. We tested the Chao formalism using a 1: 85 GeV/c polarized deuteron beam stored in COSY, by sweeping an rf dipole's frequency through 200 Hz, while varying the distance from the sweep's end frequency to an rf-induced spin resonance's central frequency. Since the Froissart- Stora equation itself can make no prediction inside a resonance, we compared our experimental data with the predictions of the Chao formalism and those of an empirical two-fluid model based on the Froissart- Stora equation. The data strongly favor the Chao formalism. |