Strange Quark Contributions to Parity-Violating Asymmetries in the Forward G0 Electron-Proton Scattering Experiment

Preprint

17 June 2005

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.nucl-ex/0506021

Abstract

We have measured parity-violating asymmetries in elastic electron-proton scattering over the range of momentum transfers 0.12 < Q^2 < 1.0 GeV^2. These asymmetries, arising from interference of the electromagnetic and neutral weak interactions, are sensitive to strange quark contributions to the currents of the proton. The measurements were made at JLab using a toroidal spectrometer to detect the recoiling protons from a liquid hydrogen target. The results indicate non-zero, Q^2 dependent, strange quark contributions and provide new information beyond that obtained in previous experiments.

Keywords

INTERFERENCE OF THE ELECTROMAGNETIC
STRANGE QUARK CONTRIBUTIONS
VIOLATING ASYMMETRIES
PARITY VIOLATING
SCATTERING

All Related Versions

Version 1, 2005-06-17, ArXiv
Version 1, 2009-09-28, ArXiv (Unconfirmed version)
Version 2, 2009-12-17, ArXiv (Unconfirmed version)
Published version: Physical Review Letters, 95 (9), 092001.

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