Document Type

Article

Publication Date

1-18-2006

Abstract

We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from 4He at an average scattering angle ⟨θlab⟩=5.7° and a four-momentum transfer Q2=0.091  GeV2. From these data, for the first time, the strange electric form factor of the nucleon GEs can be isolated. The measured asymmetry of APV=(6.72±0.84(stat)±0.21(syst))×10-6 yields a value ofGEs=-0.038±0.042(stat)±0.010(syst), consistent with zero.

DOI

10.1103/PhysRevLett.96.022003

Version

Publisher's PDF

Comments

© 2006 The American Physical Society. The original publication is available at http://link.aps.org/doi/10.1103/PhysRevLett.96.022003

Original Citation

Phys. Rev. Lett. 96, 022003 (2006)

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