Precision determination of the neutron spin structure function gn1 Article

Abe, K, Akagi, T, Anderson, BD et al. (1997). Precision determination of the neutron spin structure function gn1 . 79(1), 26-30. 10.1103/PhysRevLett.79.26



cited authors

  • Abe, K; Akagi, T; Anderson, BD; Anthony, PL; Arnold, RG; Averett, T; Band, HR; Berisso, CM; Bogorad, P; Borel, H; Bosted, PE; Breton, V; Buenerd, MJ; Cates, GD; Chupp, TE; Churchwell, S; Coulter, KP; Daoudi, M; Decowski, P; Erickson, R; Fellbaum, JN; Fonvieille, H; Gearhart, R; Ghazikhanian, V; Griffioen, KA; Hicks, RS; Holmes, R; Hughes, EW; Igo, G; Incerti, S; Johnson, JR; Kahl, W; Khayat, M; Kolomensky, YG; Kuhn, SE; Kumar, K; Kuriki, M; Lombard-Nelsen, R; Manley, DM; Marroncle, J; Maruyama, T; Marvin, T; Meyer, W; Meziani, ZE; Miller, D; Mitchell, G; Olson, M; Peterson, GA; Petratos, GG; Pitthan, R; Prepost, R; Raines, P; Raue, B; Reyna, D; Rochester, LS; Rock, SE; Romalis, MV; Sabatie, F; Shapiro, G; Shaw, J; Smith, TB; Sorrell, L; Souder, PA; Staley, F; St. Lorant, S; Stuart, LM; Suekane, F; Szalata, ZM; Terrien, Y; Thompson, AK; Toole, T; Wang, X; Watson, JW; Welsh, RC; Wesselmann, F; Wright, T; Young, CC; Youngman, B; Yuta, H; Zhang, WM; Zyla, P

fiu authors

abstract

  • We report on a precision measurement of the neutron spin structure function gn1 using deep inelastic scattering of polarized electrons by polarized 3He. For the kinematic range 0.014 < x < 0.7 and 1 < Q2 < 17(GeV/c)2, we obtain ∫0.0140.7 gn1(x)dx = −0.036 ± 0.004(stat) ± 0.005(syst) at an average Q2 = 5(GeV/c)2. We find relatively large negative values for gn1 at low x. The results call into question the usual Regge theory method for extrapolating to x = 0 to find the full neutron integral ∫ 1gn1(x) dx, needed for testing the quark-parton model and QCD sum rules. © 1997 The American Physical Society.

publication date

  • January 1, 1997

Digital Object Identifier (DOI)

start page

  • 26

end page

  • 30

volume

  • 79

issue

  • 1