TY  - JOUR
AU  - Krisch, A. D.
AU  - Leonova, M. A.
AU  - Morozov, V. S.
AU  - Raymond, R. S.
AU  - Sivers, D. W.
AU  - Wong, V. K.
AU  - Gebel, R.
AU  - Lehrach, A.
AU  - Lorentz, B.
AU  - Maier, R.
AU  - Prasuhn, D.
AU  - Schnase, A.
AU  - Stockhorst, H.
AU  - Hinterberger, F.
AU  - Ulrich, K.
TI  - Experimental test of the new analytic matrix formalism for spin dynamics
JO  - Physical review accelerators and beams
VL  - 10
IS  - 4
SN  - 1098-4402
CY  - [S.l.] @
PB  - Soc.
M1  - PreJuSER-59067
SP  - 041001
PY  - 2007
N1  - Record converted from VDB: 12.11.2012
AB  - 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.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000246552600001
DO  - DOI:10.1103/PhysRevSTAB.10.041001
UR  - https://juser.fz-juelich.de/record/59067
ER  -