Measuring the Neutron and³He Spin Structure at Low Q²

Conference · Mon Sep 01 04:00:00 EDT 2008

DOI:https://doi.org/10.3360/dis.2008.211· OSTI ID:1996488

Sulkosky, Vincent

Jefferson Lab experiment E97-110 was performed to provide precise data for the extended Gerasimov--Drell--Hearn integral and the moments of the neutron and $$^{3}$$He spin structure functions at low $$Q^{2}$$ from 0.02 to 0.3 $$(\mathrm{GeV}/c)^{2}$$. These data allow us to carry out a precise test of Chiral Perturbation Theory calculations in a region where they are expected to be valid. In these proceedings, the motivation for the experiment and the experimental details are discussed, and preliminary results are presented on the first moment of the $$g_1\left(x,Q^{2}\right)$$ structure function. Results on the $$g_{2}\left(x,Q^{2}\right)$$ integral were also presented at the conference.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1996488
• Report Number(s): JLAB-PHY-08-847; DOE/OR/23177-0409
• Country of Publication: United States
• Language: English