Measurements of the Proton and Deuteron Spin Structure Function g2 and Asymmetry A2 Article

Abe, K, Akagi, T, Anthony, PL et al. (1996). Measurements of the Proton and Deuteron Spin Structure Function g2 and Asymmetry A2 . 76(4), 587-591. 10.1103/PhysRevLett.76.587



cited authors

  • Abe, K; Akagi, T; Anthony, PL; Antonov, R; Arnold, RG; Averett, T; Band, HR; Bauer, JM; Borel, H; Bosted, PE; Breton, V; Button-Shafer, J; Chen, JP; Chupp, TE; Clendenin, J; Comptour, C; Coulter, KP; Court, G; Crabb, D; Daoudi, M; Day, D; Dietrich, FS; Dunne, J; Dutz, H; Erbacher, R; Fellbaum, J; Feltham, A; Fonvieille, H; Frlez, E; Garvey, D; Gearhart, R; Gomez, J; Grenier, P; Griffioen, KA; Hoibraten, S; Hughes, EW; Hyde-Wright, C; Johnson, JR; Kawall, D; Klein, A; Kuhn, SE; Kuriki, M; Lindgren, R; Liu, TJ; Lombard-Nelsen, RM; Marroncle, J; Maruyama, T; Maruyama, XK; McCarthy, J; Meyer, W; Meziani, ZE; Minehart, R; Mitchell, J; Morgenstern, J; Petratos, GG; Pitthan, R; Pocanic, D; Prescott, C; Prepost, R; Raines, P; Raue, B; Reyna, D; Rijllart, A; Roblin, Y; Rochester, LS; Rock, SE; Rondon, OA; Sick, I; Smith, LC; Smith, TB; Spengos, M; Staley, F; Steiner, P; St.Lorant, S; Stuart, LM; Suekane, F; Szalata, ZM; Tang, H; Terrien, Y; Usher, T; Walz, D; White, JL; Witte, K; Young, CC; Youngman, B; Yuta, H; Zapalac, G; Zihlmann, B; Zimmermann, D

fiu authors

abstract

  • We have measured proton and deuteron virtual photon-nucleon asymmetries [Formula presented] and [Formula presented] and structure functions [Formula presented] and [Formula presented] over the range [Formula presented] and [Formula presented] by inelastically scattering polarized electrons off polarized ammonia targets. Results for A2 are significantly smaller than the positivity limit √R for both targets. Within experimental precision the g2 data are well described by the twist-2 contribution, [Formula presented]. Twist-3 matrix elements have been extracted and are compared to theoretical predictions. © 1996 American Physical Society.

publication date

  • January 1, 1996

Digital Object Identifier (DOI)

start page

  • 587

end page

  • 591

volume

  • 76

issue

  • 4