Publication Date
2021
Journal or Book Title
Physical Review Letters
Abstract
A complete, gauge-invariant computation of two-loop virtual corrections involving closed fermion loops to the polarized Møller scattering asymmetry is presented. The set of contributions involving two closed fermion loops and the set involving one closed fermion loop are numerically similar in magnitude to the one-loop bosonic corrections and yield an overall correction of 1.3% relative to the tree level asymmetry. We estimate sizes of the remaining two-loop contributions and discuss implications for the upcoming MOLLER (Measurement of a Lepton-Lepton Electroweak Reaction) experiment.
DOI
https://doi.org/10.1103/PhysRevLett.126.131801
Volume
126
License
UMass Amherst Open Access Policy
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Du, Yong; Freitas, Ayres; Patel, Hiren H.; and Ramsey-Musolf, Michael J., "Parity-Violating Møller Scattering at Next-to-Next-to-Leading Order: Closed Fermion Loops" (2021). Physical Review Letters. 1266.
https://doi.org/10.1103/PhysRevLett.126.131801