| Abstrakt: |
The Spin Asymmetry on the Nucleon Experiment (SANE) at Jefferson Lab measures proton spin observables A1p, A2p and structure functions g1p and g2p over a broad range of Bjorken scaling variable x from 0.3 to 0.8, for four-momentum transfers ranging from 2.5 GeV2 to 6.5 GeV2. Inclusive double spin asymmetries were measured by scattering 4.7 and 5.9-GeV longitudinally polarized electron beam off a polarized solid NH3 target, in both parallel and near-perpendicular configuration. Scattered electrons were detected using a novel non-magnetic detector array with 194-msr acceptance. This paper presents the physics motivation for the experiment, the detector performance, and the latest status of the ongoing data analysis. [ABSTRACT FROM AUTHOR] |
