We have measured the neutron structure function gn2 and the virtual photon-nucleon asymmetry An2 over the kinematic range 0.014 ≤ x ≤ 0.7 and 1.0 ≤ Q2 ≤ 17.0 by scattering 48.3 GeV longitudinally polarized electrons from polarized 3He. Results for An2 are significantly smaller than the √R positivity limit over most of the measured range and data for gn2 are generally consistent with the twist-2 Wandzura-Wilczek prediction. Using our measured gn2 we obtain results for the twist-3 reduced matrix element dn2, and the integral ∫ gn2(x) dx in the range 0.014 ≤ x ≤ 1.0. Data from this experiment are combined with existing data for gn2 to obtain an average for dn2 and the integral ∫ gn2(x) dx.
|Number of pages||6|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|Publication status||Published - 1997 Jul 10|
ASJC Scopus subject areas
- Nuclear and High Energy Physics