Document Type
Article
Publication Date
3-15-2012
Abstract
We report the first measurement of the parity-violating asymmetry APV in the elastic scattering of polarized electrons from 208Pb. APV is sensitive to the radius of the neutron distribution (Rn). The result APV=0.656±0.060(stat)±0.014(syst) ppm corresponds to a difference between the radii of the neutron and proton distributions Rn-Rp=0.33-0.18+0.16 fm and provides the first electroweak observation of the neutron skin which is expected in a heavy, neutron-rich nucleus.
DOI
10.1103/PhysRevLett.108.112502
Version
Publisher's PDF
Recommended Citation
Abrahamyan, S.; Holmstrom, Timothy; and PREX Collaboration, "Measurement of the Neutron Radius of (208)Pb through Parity Violation in Electron Scattering" (2012). Chemistry & Physics Faculty Publications. 19.
https://digitalcommons.longwood.edu/chemphys_facpubs/19
Original Citation
Phys. Rev. Lett. 108, 112502 (2012)
Comments
© 2012 American Physical Society. The original publication is available at http://link.aps.org/doi/10.1103/PhysRevLett.108.112502