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Article
Strange-quark contributions to parity-violating asymmetries in the forward G0 electron-proton scattering experiment
Physical review letters
Document Type
Article
Article Version
Publisher's PDF
Publication Date
1-1-2005
Disciplines
Abstract
We have measured parity-violating asymmetries in elastic electron-proton scattering over the range of momentum transfers 0.12≤Q2≤1.0 GeV2. 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, Q2 dependent, strange-quark contributions and provide new information beyond that obtained in previous experiments.
Published Citation
Armstrong, D. S., et al. "Strange-quark contributions to parity-violating asymmetries in the forward G0 electron-proton scattering experiment." Physical review letters 95.9 (2005): 092001.
DOI: 10.1103/PhysRevLett.95.092001
DOI
10.1103/PhysRevLett.95.092001
None
Peer Reviewed
Citation Information
D. S. Armstrong, Angela Biselli and G0 Collaboration. "Strange-quark contributions to parity-violating asymmetries in the forward G0 electron-proton scattering experiment" Physical review letters Vol. 95 Iss. 9 (2005) Available at: http://works.bepress.com/angela_biselli/50/
Copyright American Physical Society
Publisher final version available at http://prl.aps.org/abstract/PRL/v95/i9/e092001