1997/05/23 by K. Abe, T. Akagi, B. D. Anderson +78 · 4 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Particle physics theoretical and experimental studies #Quantum, superfluid, helium dynamics #hep-ex
paper · pdf · doi:10.1016/s0370-2693(97)00613-8
published as Phys.Lett.B404:377-382,1997 · 10 pages, 3 figures. To be published in Physics Letters B
arxiv created 1997/05/23 · openalex publication_date 1997/07/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04
We have measured the neutron structure function g2n and the virtual photon-nucleon asymmetry A2n over the kinematic range 0.014 ⩽ × ⩽ 0.7 and 1.0 ⩽ Q2 ⩽ 17.0 by scattering 48.3 GeV longitudinally polarized electrons from polarized 3He. Results for A2n are significantly smaller than the √R positivity limit over most of the measured range and data for g2n are generally consistent with the twist-2 Wandzura-Wilczek prediction. Using our measured g2n we obtain results for the twist-3 reduced matrix element d2n, and the integral ∫ g2n(x) dx in the range 0.014 ⩽ × ⩽ 1.0. Data from this experiment are combined with existing data for g2n to obtain an average for d2n and the integral ∫ g2n(x) dx.