First Order QED Corrections to the Parity-Violating Asymmetry in Moller Scattering | Zendy

V. Zykunov | Zendy; Juan Carlos Pinilla Suárez | Zendy; Brock Tweedie | Zendy; Yury Kolomensky | Zendy

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First Order QED Corrections to the Parity-Violating Asymmetry in Moller Scattering

Author(s) -

V. Zykunov,

Juan Carlos Pinilla Suárez,

Brock Tweedie,

Yury Kolomensky

Publication year - 2005

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/878789

Subject(s) - physics , asymmetry , electroweak interaction , parity (physics) , particle physics , observable , covariant transformation , scattering , weinberg angle , lepton , nuclear physics , quantum mechanics , electron

We compute a full set of the first order QED corrections to the parity-violating observables in polarized Moeller scattering. We employ a covariant method of removing infrared divergences, computing corrections without introducing any unphysical parameters. When applied to the kinematics of the SLAC E158 experiment, the QED corrections reduce the parity violating asymmetry by 4.5%. We combine our results with the previous calculations of the first-order electroweak corrections and obtain the complete {Omicron}({alpha}) prescription for relating the experimental asymmetry A{sub LR} to the low-energy value of the weak mixing angle sin{sup 2} {theta}{sub W}. Our results are applicable to the recent measurement of A{sub LR} by the SLAC E158 collaboration, as well as to the future parity violation experiments

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