Neutron ({sup 3}He) Spin Structure Functions at Low Q{sup 2}

Journal Article · Mon Jul 27 04:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3203306· OSTI ID:21344413

Sulkosky, Vincent A ^[1]

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1. 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, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1155; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

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