Parity-Violating Electron Scattering [electronic resource] : New Results and Future Prospects
- Washington, D.C. : United States. Dept. of Energy. Office of Energy Research, 2006. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Additional Creators:
- Thomas Jefferson National Accelerator Facility (U.S.), United States. Department of Energy. Office of Energy Research, and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- We discuss the status and prospects of an experimental program of parity-violating asymmetry measurements in the scattering of longitudinally polarized electrons off unpolarized fixed targets. One thrust is the measurements of nucleon neutral weak form factors at intermediate four-momentum transfer (0.1 < Q2 < 1) (GeV/c)2 which provide information about the role of virtual strange quarks on the charge and current distributions inside nucleons. A new topic is the elastic neutral weak amplitude from scattering off a heavy spinless nucleus, which is sensitive to the presence of a neutron skin. Finally, we discuss the neutral current elastic amplitude at very low Q2, which allows precision measurements of the weak mixing angle at low energy and is thus sensitive to new physics at the TeV scale. The physics implications of recent results, potential measurements from experiments under construction as well as new ideas at future facilities are discussed.
- Published through SciTech Connect., 11/01/2006., "jlab-thy-06-594", " doe/er/40150-4164", CIPANP 2006: 9th Conference on the Intersections of Particle and Nuclear Physics, Westin Rio Mar Beach, Puerto Rico, 30 May - 3 Jun 2006., and Krishna S. Kumar.
- Funding Information:
- FG02-88R40415-A018 and AC05-84ER40150
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