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18 April 2024

» arxiv » hep-ex/0203012

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First electron beam polarization measurements with a Compton polarimeter at Jefferson Laboratory
M. Baylac ; E. Burtin ; C. Cavata ; S. Escoffier ; B. Frois ; D. Lhuillier ; F. Marie ; J. Martino ; D. Neyret ; T. Pussieux ; P.Y. Bertin ; C.W. de Jager ; J. Mitchell ;
Date:	8 Mar 2002
Journal:	Phys.Lett. B539 (2002) 8-12
Subject:	hep-ex
Affiliation:	CEA Saclay, DSM/DAPNIA/SPhN), P.Y. Bertin (Universite Blaise Pascal et CNRS-IN2P3), C.W. de Jager, J. Mitchell (Jefferson Lab
Abstract:	A Compton polarimeter has been installed in Hall A at Jefferson Laboratory. This letter reports on the first electron beam polarization measurements performed during the HAPPEX experiment at an electron energy of 3.3 GeV and an average current of 40 $mu$A. The heart of this device is a Fabry-Perot cavity which increased the luminosity for Compton scattering in the interaction region so much that a 1.4% statistical accuracy could be obtained within one hour, with a 3.3% total error.
Source:	arXiv, hep-ex/0203012
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