Measurement of the structure functions g1(p) and g1(n) with the CLAS at Jefferson Lab
Inelastic scattering using polarized nucleon targets and polarized lepton beams allows the extraction of the structure function g_1 and g_2 which provide information on the spin structure of the nucleon. A program designed to study such processes has been underway in Jefferson Lab since 1998. A polarized electron beam, solid polarized NH_3 and ND_3 targets and the CEBAF Large Acceptance Spectrometer (CLAS) in Hall B were used to collect the desired data. 3 billion events were accumulated during the first run, and over 23 billion events were accumulated during the second run. The measurements cover the resonance region with unprecedented detail and add significantly to the DIS data set at low to moderate Q^2 and moderate to high x.
- Research Organization:
- Thomas Jefferson National Accelerator Facility, Newport News, VA
- Sponsoring Organization:
- USDOE - Office of Energy Research (ER)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 899316
- Report Number(s):
- JLAB-PHY-02-166; DOE/ER/40150-4191
- Country of Publication:
- United States
- Language:
- English
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