Parity violating target asymmetry in electron - proton scattering

Details Parity violating target asymmetry in electron - proton scattering Parity violating target asymmetry in electron - proton scattering

1998-11-16

arxiv.org/abs/nucl-th/9811055v1

Phys.Rev. C59 (1999) 2844-2852

Physics

Nuclear Physics

Nuclear Theory

24 pages, Latex, 5 eps figures, submitted to Phys.Rev.C

Scientific paper

10.1103/PhysRevC.59.2844

We analyze the parity-violating (PV) components of the analyzing power in elastic electron-proton scattering and discuss their sensitivity to the strange quark contributions to the proton weak form factors. We point out that the component of the analyzing power along the momentum transfer is independent of the electric weak form factor and thus compares favorably with the PV beam asymmetry for a determination of the strangeness magnetic moment. We also show that the transverse component could be used for constraining the strangeness radius. Finally, we argue that a measurement of both components could give experimental information on the strangeness axial charge.

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