The Neutron and 3He Spin Structure Functions at Low Q^2

Conference · Sat Aug 01 04:00:00 EDT 2009 · AIP Conf.Proc.

DOI:https://doi.org/10.1063/1.3215653· OSTI ID:978840

Sulkosky, Vincent

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, 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
• Conference Information: Journal Name: AIP Conf.Proc. Journal Volume: 1149
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BENCHMARKS
CEBAF ACCELERATOR
ELECTRON BEAMS
MOMENTUM TRANSFER
NEUTRONS
PERTURBATION THEORY
PHYSICS
SPIN
STRUCTURE FUNCTIONS