The G0 Experiment At Jefferson Lab
The electron-proton parity-violation G0 experiment at Jefferson Lab aims to make a determination of the `strange' quark currents in the proton. Two new proton ground state matrix elements will be measured which are sensitive to point-like `strange' quarks and hence to the quark-antiquark sea in the proton. The matrix elements of interest are the elastic-scattering vector weak neutral-current `charge' and `magnetic' form factors, GZE and GZM, respectively. By measuring the very small parity-violating asymmetries in elastic electron-proton scattering at momentum transfers between 0.1 and 1.0 GeV2, and combining these asymmetries with previously measured electromagnetic form factors, new information about the proton weak form factors can be obtained. This new high precision experiment is presently in the installation and commissioning phase.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE - Office of Energy Research (ER)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 877163
- Report Number(s):
- JLAB-PHY-02-153; DOE/ER/40150-3819; TRN: US0806049
- Resource Relation:
- Conference: SPIN 2002, Upton, New York (USA), 9-14 September 2002
- Country of Publication:
- United States
- Language:
- English
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CURRENT STATUS OF THE G0 PARITY VIOLATION EXPERIMENT CARRIED OUT AT JEFFERSON LABORATORY
Asymmetries analysis from the forward angle part of the G0 experiment