%0 Journal Article
%A Krisch, A. D.
%A Leonova, M. A.
%A Morozov, V. S.
%A Raymond, R. S.
%A Sivers, D. W.
%A Wong, V. K.
%A Gebel, R.
%A Lehrach, A.
%A Lorentz, B.
%A Maier, R.
%A Prasuhn, D.
%A Schnase, A.
%A Stockhorst, H.
%A Hinterberger, F.
%A Ulrich, K.
%T Experimental test of the new analytic matrix formalism for spin dynamics
%J Physical review accelerators and beams
%V 10
%N 4
%@ 1098-4402
%C [S.l.] @
%I Soc.
%M PreJuSER-59067
%P 041001
%D 2007
%Z Record converted from VDB: 12.11.2012
%X 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.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000246552600001
%R 10.1103/PhysRevSTAB.10.041001
%U https://juser.fz-juelich.de/record/59067