"Parity-Violating Electron Scattering from ^4 He and the Strange Electric Form Factor of the the Nucleon" by K. A. Aniol

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Parity-Violating Electron Scattering from ^4 He and the Strange Electric Form Factor of the the Nucleon

The Physical Review Letters (2006)

K. A. Aniol
D. S. Armstrong
T. Averett
H. Benaoum
P. Y. Bertin
E. Burtin
J. Cahoon
G. D. Cates
C. C. Chang
Y. C. Chao
J. P. Chen
Seonho Choi
E. Chudakov
B. Craver
F. Cusanno
P. Decowsky
D. Deepa
C. Ferdi
R. J. Feuerbach
M. J. Finn
S. Frullani
K. Fuoti
F. Garibaldi
R. Gilman
A. Glamazdin
V. Gorbenko
J. M. Grames
J. Hansknecht
D. W. Higinbotham
R. Holmes
T. Holmstrom
T. B. Humensky
H. Ibrahim
C. W. de Jager
X. Jiang
L. J. Kaufman
A. Kelleher
A. Kolarkar
S. Kowalski
Krishna Kumar, University of Massachusetts - Amherst
D. Lambert
P. LaViolette
J. LeRose
D. Lhuillier
N. Liyanage
D. J. Margaziotis
M. Mazouz
K. McCormick
D. G. Meekins
Z. E. Meziani
R. Michaels
B. Moffit
P. Monaghan
C. Munoz-Camacho
S. Nanda
V. Nelyubin
D. Neyret
K. D. Paschke
M. Poelker
R. Pomatsalyuk
Y. Qiang
B. Reitz
J. Roche
A. Saha
J. Singh
R. Snyder
P. A. Souder
R. Subedi
R. Suleiman
V. Sulkosky
W. A. Tobias
G. M. Urciuoli
A. Vacheret
E. Voutier
K. Wang
R. Wilson
B. Wojtsekhowski
X. Zheng

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Abstract

We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from 4He at an average scattering angle = 5.7 degrees and a four-momentum transfer Q2 = 0.091 GeV2 . From these data, for the first time, the strange electric form factor of the nucleon G(E)s can be isolated. The measured asymmetry of A(PV) = (6.72 +/- 0.84(stat) +/- 0.21(syst) x 10(-6) yields a value of G(E)s = -0.038 +/- 0.042(stat) +/- 0.010(syst), consistent with zero.

Disciplines

Physics

Publication Date

2006

Publisher Statement

http://www.ncbi.nlm.nih.gov/pubmed/16486563

Citation Information

K. A. Aniol, D. S. Armstrong, T. Averett, H. Benaoum, et al.. "Parity-Violating Electron Scattering from ^4 He and the Strange Electric Form Factor of the the Nucleon" The Physical Review Letters (2006)
Available at: http://works.bepress.com/krishna_kumar/3/