Constraints on the nucleon strange form factors at $Q^2 \sim 0.1 GeV^2$
- Aniol, K.
- Armstrong, D.
- Averett, T.
- Benaoum, H.
- Bertin, P.Y.
- Burtin, E.
- Cahoon, J.
- Cates, G.
- Chang, C.
- Chao, Y.-C.
- Chen, Jie
- Choi, S., K.
- Chudakov, E.
- Craver, B.
- Cusanno, F.
- Decowski, P.
- Deepa, D.
- Ferdi, C.
- Feuerbach, R.
- Finn, J.
- Frullani, S.
- Fuoti, K.
- Garibaldi, F.
- Gilman, R.
- Glamazdin, O.
- Gorbenko, V.
- Grames, J.
- Hansknecht, J.
- Higinbotham, D.
- Holmes, R.
- Holmstrom, T.
- Humensky, T.
- Ibrahim, H.
- de Jager, C.
- Jiang, X.
- Kaufman, L.
- Kelleher, A.
- Kolarkar, A.
- Kowalski, S.
- Kumar, K.
- Lambert, D.
- Laviolette, P.
- Lerose, J.
- Lhuillier, D.
- Liyanage, N.
- Margaziotis, D.
- Mazouz, M.
- Mccormick, K.
- Meekins, D.
- Meziani, Z.-E.
- Michaels, R.
- Moffit, B.
- Monaghan, P.
- Munoz-Camacho, C.
- Nanda, S.
- Nelyubin, V.
- Neyret, D.
- Paschke, K.D.
- Poelker, B.
- Pomatsalyuk, R.
- Qiang, Y.
- Reitz, B.
- Roche, J.
- Saha, A.
- Singh, J.
- Snyder, R.
- Souder, P.A.
- Stutzman, M.
- Subedi, R.
- Suleiman, R.
- Sulkosky, V.
- Tobias, W.
- Urciuoli, G.
- Vacheret, A.
- Voutier, E.
- Wang, K.
- Wilson, R., P.
- Wojtsekhowski, B.
- Zheng, X.
DOIAbstract
minor wording changes for clarity, updated references, dropped one figure to improve focus - Group Hall A, submitted to AutomaticaWe report the most precise measurement to date of a parity-violating asymmetry in elastic electron-proton scattering. The measurement was carried out with a beam energy of 3.03 GeV and a scattering angle =6 degrees, with the result A_PV = -1.14 +/- 0.24 (stat) +/- 0.06 (syst) parts per million. From this we extract, at Q^2 = 0.099 GeV^2, the strange form factor combination G_E^s + 0.080 G_M^s = 0.030 +/- 0.025 (stat) +/- 0.006 (syst) +/- 0.012 (FF) where the first two errors are experimental and the last error is due to the uncertainty in the neutron electromagnetic form factor. This result significantly improves...
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