Aleksejevs, A. and Barkanova, S. and Kolomensky, Y. and Kuraev, E. and Zykunov, V. (2012) High-precision calculations of electroweak radiative corrections for polarized Møller scattering at one loop and beyond. Il nuovo cimento C, 35 (4). pp. 192-197. ISSN 1826-9885
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Abstract
Parity-violating Møller scattering measurements are a powerful probe of new physics effects, and the upcoming high-precision experiments will require a new level of accuracy for electroweak radiative corrections (EWC). First, we perform the updated calculations of one-loop EWC for Møller scattering asymmetry using two different approaches: semi-automatic, precise, with FeynArts and FormCalc as base languages, and “by hand”, with reasonable approximations. In addition, we provide a tuned comparison between the one-loop results obtained in two different renormalization schemes: on-shell and constrained differential renormalization. As the last step, we discuss the two-loop EWC induced by squaring one-loop diagrams, and show that the significant size of this partial correction indicates a need for a complete study of the two-loop EWC in order to meet the precision goals of future experiments.
| Item Type: | Article |
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| Uncontrolled Keywords: | Electroweak radiative corrections ; Polarization in interactions and scattering ; Elastic electron scattering |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 21 Apr 2020 19:00 |
| Last Modified: | 21 Apr 2020 19:00 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/17913 |
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