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Published August 1994 | Published
Journal Article Open

Measurement of the neutron magnetic form factor from inclusive quasielastic scattering of polarized electrons from polarized ³He


We report a measurement of the asymmetry in spin-dependent quasielastic scattering of longitudinally polarized electrons from a polarized ³He target. The neutron magnetic form factor GM^n has been extracted from the measured asymmetry based on recent PWIA calculations using spin-dependent spectral functions. Our determination of GM^n at Q² = 0.19 (GeV/c)² agrees with the dipole parametrization. This experiment represents the first measurement of the neutron magnetic form factor using spin-dependent electron scattering.

Additional Information

© 1994 The American Physical Society. (Received 15 February 1994) We would like to thank G. Salmè and R.-W. Schulze for providing their calculations, T. Gentile for helpful discussions on the target, and A. Dvoredsky for analyzing the beam polarization data. We would also like to thank the staff of the MIT-Bates Linear Accelerator Center for making this experiment possible. This work was funded by the National Science Foundation Grant No. PHY91-15574 (Caltech), the U.S. Department of Energy Contract No. DE-AC02-76ER03069 (MIT), the U.S. Department of Energy Contract No. W-31-109-ENG-38 (Argonne), the National Science Foundation Grant No. PHY92-08119 (RPI), and by the NSERC (Natural Sciences and Engineering Research Council) of Canada (TRIUMF).

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August 22, 2023
August 22, 2023