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24 April 2024

» arxiv » 1008.1738

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Measurements of the Electric Form Factor of the Neutron up to Q2=3.4 GeV2 using the Reaction He3(e,e'n)pp
S.Riordan ; S.Abrahamyan ; B.Craver ; A.Kelleher ; A.Kolarkar ; J.Miller ; G.D.Cates ; N.Liyanage ; B.Wojtsekhowski ; A.Acha ; K.Allada ; B.Anderson ; K.A.Aniol ; J.R.M.Annand ; J.Arrington ; T.Averett ; A.Beck ; M.Bellis ; W.Boeglin ; H.Breuer ; J.R.Calarco ; A.Camsonne ; J.P.Chen ; E.Chudakov ; L.Coman ; B.Crowe ; F.Cusanno ; D.Day ; P.Degtyarenko ; P.A.M.Dolph ; C.Dutta ; C.Ferdi ; C.Fernandez-Ramirez ; R.Feuerbach ; L.M.Fraile ; G.Franklin ; S.Frullani ; S.Fuchs ; F.Garibaldi ; N.Gevorgyan ; R.Gilman ; A.Glamazdin ; J.Gomez ; K.Grimm ; J.O.Hansen ; J.L.Herraiz ; D.W.Higinbotham ; R.Holmes ; T.Holmstrom ; D.Howell ; C.W.deJager ; X.Jiang ; M.K.Jones ; J.Katich ; L.J.Kaufman ; M.Khandaker ; J.J.Kelly ; D.Kiselev ; W.Korsch ; J.LeRose ; R.Lindgren ; P.Markowitz ; D.J.Margaziotis ; S.May-Tal Beck ; S.Mayilyan ; K.McCormick ; Z.E.Meziani ; R.Michaels ; B.Moffit ; S.Nanda ; V.Nelyubin ; T.Ngo ; D.M.Nikolenko ; B.Norum ; L.Pentchev ; C.F.Perdrisat ; E.Piasetzky ; R.Pomatsalyuk ; D.Protopopescu ; A.J.R.Puckett ; V.A.Punjabi ; X.Qian ; Y.Qiang ; B.Quinn ; I.Rachek ; R.D.Ransome ; P.E.Reimer ; B.Reitz ; J.Roche ; G.Ron ; O.Rondon ; G.Rosner ; A.Saha ; M.Sargsian ; B.Sawatzky ; J.Segal ; M.Shabestari ; A.Shahinyan ; Yu.Shestakov ; J.Singh ; S.Sirca ; P.Souder ; S.Stepanyan ; V.Stibunov ; V.Sulkosky ; S.Tajima ; W.A.Tobias ; J.M.Udias ; G.M.Urciuoli ; B.Vlahovic ; H.Voskanyan ; K.Wang ; F.R.Wesselmann ; J.R.Vignote ; S.A.Wood ; J.Wright ; H.Yao ; X.Zhu ;
Date:	10 Aug 2010
Abstract:	The electric form factor of the neutron was determined from studies of the reaction He3(e,e’n)pp in quasi-elastic kinematics in Hall A at Jefferson Lab. Longitudinally polarized electrons were scattered off a polarized target in which the nuclear polarization was oriented perpendicular to the momentum transfer. The scattered electrons were detected in a magnetic spectrometer in coincidence with neutrons that were registered in a large-solid-angle detector. More than doubling the Q2-range over which it is known, we find GEn = 0.0225 +/- 0.0017 (stat) +/- 0.0024 (syst), 0.0200 +/- 0.0023 +/- 0.0018, and 0.0142 +/- 0.0019 +/- 0.0013 for Q2 = 1.72, 2.48, and 3.41 GeV2, respectively.
Source:	arXiv, 1008.1738
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