Spin Physics With Clas At Jefferson Laboratory
Inelastic scattering using polarized nucleon targets and polarized charged lepton beams allows the extraction of spin structure functions that provide information about the spin structure of the nucleon. A program designed to study such processes at low and intermediate Q2 for the proton and deuteron has been pursued by the CLAS Collaboration at Jefferson Lab since 1998. The data with high statistical precision and extensive kinematic coverage allows us to better constrain the polarized parton distributions and to accurately determine various moments of g1 as a function of Q2. The latest results are presented, illustrating our contribution to the world data, with comparisons of the data with NLO global fits, phenomenological models, chiral perturbation theory, the GDH and Bjorken sum rules, and tests of global duality.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-060R23177
- OSTI ID:
- 955801
- Report Number(s):
- JLAB-PHY-07-786; 7847360; DOE/OR/23177-0504; TRN: US1004745
- Resource Relation:
- Conference: Invited Talk compiled for MENU2007
- Country of Publication:
- United States
- Language:
- English
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Spin Physics with CLAS
Q2-Evolution of the Spin Structure Function g1(x,Q2) of the Proton and the Deuteron