Observation of Parity Nonconservation in Moller Scattering
- SLAC
The authors report a measurement of the parity-violating asymmetry in fixed target electron-electron (Moeller) scattering: A{sub PV} = (-175 {+-} 30 (stat.) {+-} 20 (syst.)) x 10{sup -9}. This first direct observation of parity nonconservation in Moeller scattering leads to a measurement of the electron's weak charge at low energy Q{sub W}{sup e} = -0.053 {+-} 0.011. This is consistent with the Standard Model expectation at the current level of precision: sin{sup 2} {theta}{sub W} (M{sub Z}){sub {ovr MS}} = 0.0024 (stat.) {+-} 0.0016 (syst.) {+-} 0.0006 (theory).
- Research Organization:
- Stanford Linear Accelerator Center, Menlo Park, CA (US)
- Sponsoring Organization:
- USDOE Office of Science (US)
- DOE Contract Number:
- AC03-76SF00515;
- OSTI ID:
- 826909
- Report Number(s):
- SLAC-PUB-10270
- Country of Publication:
- United States
- Language:
- English
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