Measurements of the neutron electric to magnetic form factor ratio GEn/GMn via the H2(e→,e'n→)H1 reaction to Q2=1.45 (GeV/c)2
We report values for the neutron electric to magnetic form factor ratio, GEn/GMn, deduced from measurements of the neutron's recoil polarization in the quasielastic H2(e→,e'n→)H1 reaction, at three Q2 values of 0.45, 1.13, and 1.45 (GeV/c)2. The data at Q2=1.13 and 1.45 (GeV/c)2 are the first direct experimental measurements of GEn employing polarization degrees of freedom in the Q2>1 (GeV/c)2 region and stand as the most precise determinations of GEn for all values of Q2. © 2006 The American Physical Society.
Plaster, B; Semenov, AY; Aghalaryan, A; Crouse, E; MacLachlan, G; Tajima, S; Tireman, W; Ahmidouch, A; Anderson, BD; Arenhövel, H; Asaturyan, R; Baker, OK; Baldwin, AR; Barkhuff, D; Breuer, H; Carlini, R; Christy, E; Churchwell, S; Cole, L; Danagoulian, S; Day, D; Eden, T; Elaasar, M; Ent, R; Farkhondeh, M; Fenker, H; Finn, JM; Gan, L; Gasparian, A; Garrow, K; Gueye, P; Howell, CR; Hu, B; Jones, MK; Kelly, JJ; Keppel, C; Khandaker, M; Kim, WY; Kowalski, S; Lung, A; Mack, D; Madey, R; Manley, DM; Markowitz, P; Mitchell, J; Mkrtchyan, H; Opper, AK; Perdrisat, C; Punjabi, V; Raue, B; Reichelt, T; Reinhold, J; Roche, J; Sato, Y; Savvinov, N; Semenova, IA; Seo, W; Simicevic, N; Smith, G; Stepanyan, S; Tadevosyan, V; Tang, L; Taylor, S; Ulmer, PE; Vulcan, W; Watson, JW; Wells, S; Wesselmann, F; Wood, S; Yan, C; Yang, S; Yuan, L; Zhang, WM; Zhu, H; Zhu, X
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