The Neutron and 3He Spin Structure Functions at Low Q^2
Experiment E97-110 was performed at the Thomas Jefferson National Accelerator Facility in Hall A to provide a precise measurement of the moments of the neutron and $$^{3}$$He spin structure functions. A longitudinally-polarized electron beam was scattered from a longitudinally or transversely polarized $$^{3}$$He target. The extended Gerasimov-Drell-Hearn integral and other moments of the neutron and $$^{3}$$He spin structure functions were extracted at very low momentum transfers (0.02 $$< Q^{2} <$$ 0.3 [GeV$/c$$]$$^{2}$$). These data allow us to make a benchmark check of Chiral Perturbation Theory calculations in a region where they are expected to be valid. In these proceedings, the experimental details are discussed and preliminary results on the moments of the spin structure functions are presented.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC05-06OR23177
- OSTI ID:
- 978840
- Report Number(s):
- JLAB-PHY-09-997; DOE/OR/23177-0742; TRN: US1003169
- Journal Information:
- AIP Conf.Proc., Vol. 1149; Conference: 18th International Spin Physics Symposium (SPIN 2008), 6-11 Oct 2008, Charlottesville, Virginia
- Country of Publication:
- United States
- Language:
- English
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