Measurement of inclusive quasielastic scattering of polarized electrons from polarized ³He

Creators: Woodward, C. E.; Beise, E. J.; Belz, J. E.; Carr, R. W.; Filippone, B. W.; Lorenzon, W. B.; McKeown, R. D.; Mueller, B.; O'Neill, T. G.; Dodson, G.; Dow, K.; Farkhondeh, M.; Kowalski, S.; Lee, K.; Makins, N.; Milner, R.; Thompson, A.; Tieger, D.; van den Brand, J.; Young, A.; Yu, X.; Zumbro, J. D.

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Abstract

We report a measurement of the asymmetry in spin-dependent quasielastic scattering of longitudinally polarized electrons from a polarized 3He gas target. This measurement represents the first demonstration of a new method for studying electromagnetic nuclear structure: the scattering of polarized electrons from a polarized nuclear target. The measured asymmetry is in good agreement with a Faddeev calculation and supports the picture of spin-dependent quasielastic scattering from polarized 3He as predominantly scattering from a polarized neutron.

Additional Information

© 1990 The American Physical Society. Received 18 June 1990. We would like to thank B. Blankleider and R. Woloshyn for providing us with their computer code. We also acknowledge the assistance of T. Gentile in checking the sign of the target polarization. The research has been supported by the National Science Foundation Grant No. PHY88-17296 (Caltech) and by the U.S. Department of Energy Contract No. DE-AC02-76ER03069 (MIT).

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