Parity Violation in Elastic Electron-Proton Scattering and the Proton's Strange Magnetic Form Factor

Authors :: Bao Yang
C. Benson
T. Zwart
Elitza Maneva
D.H. Barkhuff
S. P. Wells
R. Hasty
Takeyasu M. Ito
C. Eppstein
H. Breuer
B. Mueller
G. W. Dodson
K. McCarty
R. D. McKeown
B. W. Filippone
Wolfgang Korsch
E. J. Beise
T. Averett
Pei Yun Lee
J. Ritter
P. Naik
C. E. Jones
R. Carr
Evgeni Tsentalovich
K. A. Dow
S. Kowalski
V. Savu
S. Covrig
M. Farkhondeh
Douglas H Beck
Michael Pitt
Matthew James Sullivan
P. Frazier
J. DelCorso
D. T. Spayde
J. Mikell
Raphael Noel Tieulent
Source :: Scopus-Elsevier
Publication Year :: 2000
Publisher :: American Physical Society, 2000.
Abstract: We report a new measurement of the parity-violating asymmetry in elastic electron scattering from the proton at backward scattering angles. This asymmetry is sensitive to the strange magnetic form factor of the proton as well as electroweak axial radiative corrections. The new measurement of A=-4.92 +- 0.61 +- 0.73 ppm provides a significant constraint on these quantities. The implications for the strange magnetic form factor are discussed in the context of theoretical estimates for the axial corrections.<br />4 pages, 3 figures, submitted to Physical Review Letters, Sept 1999

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