Spin Asymmetries on Nucleon Experiment at Jefferson Lab
The Spin Asymmetries of the Nucleon Experiment (SANE) of Jefferson Lab is a comprehensive measurement of double spin asymmetries of the proton for both parallel and almost perpendicular spin configurations of the proton spin and the electron beam polarization directions. The experiment will provide both spin structure functions, g2 and g1 and spin observable A2 and A1 of the proton over Q2 region from 2.5 to 6.5 GeV2/c2 and Bjorken x region of 0.3 to 0.8. Using the polarized electron beam of Thomas Jefferson National Accelerator Facility and the polarized frozen NH3 target, the data were taken early 2009 in Hall C of Jefferson Lab. Scattered electrons from the inclusive reaction were detected by the Big Electron Telescope Array (BETA), a new non-magnetic detector with a large acceptance of 194 msr. The current analysis effort is focused on the proton spin structure functions g2 and g1. Physics motivations with the experimental methods will be presented with an overvew of the current status of the data analysis.
- 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:
- 1029304
- Report Number(s):
- JLAB-PHY-10-1331; DOE/OR/23177-1900
- Country of Publication:
- United States
- Language:
- English
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