HAPPEX Parity Violation Experiments at Jefferson Lab
The HAPPEX program of measurements of parity-violation in elastic electron scattering, in Hall A of Jefferson Lab, is presented. The results of the recently completed measurement on the proton at Q2 = 0.48 GeV2 are briefly reviewed. The plans are presented for the upcoming HAPPEX II measurement on the proton at Q2 = 0.1 GeV2, as well as the companion measurement with a 4He target at the same momentum transfer. These experiments are sensitive to strange quark contributions to the vector structure of the nucleon. The two new experiments will provide a precision measurement of the strangeness radius parameter, and the combination of the two experiments will also determine the strange contribution to the proton's magnetic moment.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 838462
- Report Number(s):
- JLAB-PHY-02-146; DOE/ER/40150-3257; TRN: US0501432
- Resource Relation:
- Conference: 15th International Spin Physics Symposium (SPIN 2002), Long Island, NY (US), 09/09/2002--09/14/2002; Other Information: PBD: 30 Jul 2003
- Country of Publication:
- United States
- Language:
- English
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