Neutron ({sup 3}He) Spin Structure Functions at Low Q{sup 2}
- Jefferson Laboratory 12000 Jefferson Avenue, Suite no. 4, Newport News, VA 23606 (United States)
Experiment E97-110 was performed at the Thomas Jefferson National Accelerator Facility to provide a precise measurement of the {sup 3}He spin structure functions at low Q{sup 2} from 0.02 to 0.3 [GeV/c]{sup 2}. A longitudinally-polarized electron beam was scattered from a longitudinally or transversely polarized {sup 3}He target. From these data, we have extracted moments of the neutron and {sup 3}He spin structure functions at very low momentum transfers. 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 first moments of the g{sub 1} (x,Q{sup 2}) and g{sub 2} (x,Q{sup 2}) structure functions are presented.
- OSTI ID:
- 21344413
- Journal Information:
- AIP Conference Proceedings, Vol. 1155, Issue 1; Conference: Workshop on spin structure at long distance, Newport News, VA (United States), 2-23 Mar 2009; Other Information: DOI: 10.1063/1.3203306; (c) 2009 American Institute of Physics; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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