Abstract
We report the first measurement of the parity-violating asymmetry in the elastic scattering of polarized electrons from . is sensitive to the radius of the neutron distribution (). The result corresponds to a difference between the radii of the neutron and proton distributions and provides the first electroweak observation of the neutron skin which is expected in a heavy, neutron-rich nucleus.
- Received 12 January 2012
DOI:https://doi.org/10.1103/PhysRevLett.108.112502
© 2012 American Physical Society
Synopsis
Getting Under the Neutron Skin
Published 15 March 2012
Electron scattering techniques could provide more accurate measures of the distribution of neutrons in heavy nuclei.
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