Spin Structure Functions in the Resonance Region
Abstract
In the past two decades a considerable amount of experimental research has focused on the behavior of the spin structure functions of the nucleon in the deep inelastic region. These programs have established the validity of the Bjorken Sum Rule and the Q^2 evolution of the spin structure functions in the scaling region. Recently much interest has shifted to how these functions behave in the low Q^2, non-perturbative region. A comprehensive program, designed to probe spin asymmetries and helicity amplitudes in the resonance region, using the CLAS detector at TJNAF, has completed data taking. This presentation will focus on these new results from selected exclusive channels as well as from inclusive scattering on polarized proton and deuteron targets. Specifically, virtual photon asymmetries, g1 and the evolution of the first moment of g1 for Q^2 spanning 0.2 -1.5 GeV will be discussed and compared to existing models.
- Publication:
-
APS Southeastern Section Meeting Abstracts
- Pub Date:
- November 2001
- Bibcode:
- 2001APS..SES.BB005C