Parity-Violating Møller Scattering at Next-to-Next-to-Leading Order: Closed Fermion Loops
نویسندگان
چکیده
A complete, gauge-invariant computation of two-loop virtual corrections involving closed fermion loops to the polarized M\o{}ller scattering asymmetry is presented. The set contributions two and one loop are numerically similar in magnitude one-loop bosonic yield an overall correction 1.3% relative tree level asymmetry. We estimate sizes remaining discuss implications for upcoming MOLLER (Measurement a Lepton-Lepton Electroweak Reaction) experiment.
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2021
ISSN: ['1079-7114', '0031-9007', '1092-0145']
DOI: https://doi.org/10.1103/physrevlett.126.131801