Experiments with longitudinally polarized electrons in a storage ring using a siberian snake |
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Authors: | Poolman Boersma Harvey Higinbotham Passchier Six Alarcon van Amersfoort PW Bauer Boer Rookhuizen H van Den Brand JF van Buuren LD Bulten Ent Ferro-Luzzi Geurts Heimberg de Jager CW Klimin Koop Kroes van Der Laan J Luijckx Lysenko Militsyn Nesterenko |
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Affiliation: | Department of Physics and Astronomy, Vrije Universiteit, NL-1081 HV Amsterdam, The Netherlands and NIKHEF, P.O. Box 41882, NL-1009 DB Amsterdam, The Netherlands. |
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Abstract: | We report on first measurements with polarized electrons stored in a medium-energy ring and with a polarized internal target. Polarized electrons were injected at 442 MeV (653 MeV), and a partial (full) Siberian snake was employed to preserve the polarization. Longitudinal polarization at the interaction point and polarization lifetime of the stored electrons were determined with laser backscattering. Spin observables were measured for electrodisintegration of polarized 3He, with simultaneous detection of scattered electrons, protons, neutrons, deuterons, and 3He nuclei, over a large phase space. |
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