Precision Measurements of the Nucleon Strange Form Factors at Q^2 ~0.1 GeV^2
- Acha, A.
- Aniol, K.A.
- Armstrong, D.S.
- Arrington, J.
- Averett, T.
- Bailey, S.
- Barber, J.
- Beck, A.
- Benaoum, H.
- Benesch, J.
- Bertin, P.Y.
- Bosted, P.
- Butaru, F.
- Burtin, E.
- Cates, G.
- Chao, Y.-C.
- Chen, J.-P.
- Chudakov, E.
- Cisbani, E.
- Craver, B.
- Cusanno, F.
- de Leo, R.
- Decowski, P.
- Deur, A.
- Feuerbach, R.
- Finn, J.
- Frullani, S.
- Fuchs, S.
- Fuoti, K.
- Gilman, R.
- Glesener, L.
- Grimm, K.
- Grames, J.
- Hansen, J.-O.
- Hansknecht, J.
- Higinbotham, D.
- Holmes, R.
- Holmstrom, T.
- Ibrahim, H.
- de Jager, C.
- Jiang, X.
- Katich, J.
- Kaufman, L.
- Kelleher, A.
- King, P.
- Kolarkar, A.
- Kowalski, S.
- Kuchina, E.
- Kumar, K.
- Lagamba, L.
- Laviolette, P.
- Lerose, J.
- Lindgren, R.
- Lhuillier, D.
- Liyanage, N.
- Margaziotis, D.
- Markowitz, P.
- Meekins, D.
- Meziani, Z.-E.
- Michaels, R.
- Moffit, B.
- Nanda, S.
- Nelyubin, V.
- Otis, K.
- Paschke, K.
- Philips, S.
- Poelker, B.
- Pomatsalyuk, R.
- Potokar, M.
- Prok, Y.
- Puckett, A.
- Qian, Y.
- Qiang, Y.
- Reitz, B.
- Roche, J.
- Saha, A.
- Sawatzky, B.
- Singh, J.
- Slifer, K.
- Sirca, S.
- Snyder, R.
- Solvignon, P.
- Souder, P.
- Stutzman, M.
- Subedi, R.
- Suleiman, R.
- Sulkosky, V.
- Ulmer, P.
- Urciuoli, G.
- Wang, K.
- Wilson, R., P.
- Wojtsekhowski, B.
- Yao, H.
- Ye, Y.
- Zhan, X.
- Zheng, X.
- Zhou, S.
- Ziskin, V.
DOIAbstract
4.5 pages, 2 figures. Replacement, modifying a few sentences, captions, and labels for clarity - SONDEWe report new measurements of the parity-violating asymmetry A_PV in elastic scattering of 3 GeV electrons off hydrogen and 4He targets with ~6.0 degrees. The 4He result is A_PV = (+6.40 +/- 0.23 (stat) +/- 0.12 (syst)) x10^-6. The hydrogen result is A_PV = (-1.58 +/- 0.12 (stat) +/- 0.04 (syst)) x10^-6. These results significantly improve constraints on the electric and magnetic strange form factors G_E^s and G_M^s. We extract G_E^s = 0.002 +/- 0.014 +/- 0.007 at = 0.077 GeV^2, and G_E^s + 0.09 G_M^s = 0.007 +/- 0.011 +/- 0.006 at = 0.109 GeV^2, providing new limits on the role of strange quarks in the nucleon charge and magnetization dist...
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