Published August 26, 2005
| Published
Journal Article
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Strange-quark contributions to parity-violating asymmetries in the forward G0 electron-proton scattering experiment
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 Jefferson Laboratory using a toroidal spectrometer to detect the recoiling protons from a liquid hydrogen target. The results indicate nonzero, Q^2 dependent, strange-quark contributions and provide new information beyond that obtained in previous experiments.
Additional Information
© 2005 The American Physical Society. Received 17 June 2005; published 26 August 2005. We gratefully acknowledge the strong technical contributions to this experiment from many groups: Caltech, Illinois, LPSC-Grenoble, IPN-Orsay, TRIUMF, and, particularly, the Accelerator, Target, and Hall C groups at Jefferson Lab. This work is supported in part by CNRS (France), DOE (U.S.), NSERC (Canada), and NSF (U.S.).Attached Files
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Additional details
- Eprint ID
- 23660
- Resolver ID
- CaltechAUTHORS:20110513-104708300
- Centre National de la Recherche Scientifique (CNRS) (France)
- Department of Energy (DOE)
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- NSF
- Created
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2011-05-13Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field