Møller scattering and Lorentz-violating Z bosons

Lorentz-symmetry breakdown in weak-interaction physics is studied. In particular, the CPT-even Lorentz-violating contributions to the Z boson in the minimal Standard-Model Extension are considered, and in this context polarized electron–electron scattering is investigated. Corrections to the usual p...

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Main Authors: Hao Fu, Ralf Lehnert
Format: Article
Language:English
Published: Elsevier 2016-11-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269316304907
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author Hao Fu
Ralf Lehnert
author_facet Hao Fu
Ralf Lehnert
author_sort Hao Fu
collection DOAJ
description Lorentz-symmetry breakdown in weak-interaction physics is studied. In particular, the CPT-even Lorentz-violating contributions to the Z boson in the minimal Standard-Model Extension are considered, and in this context polarized electron–electron scattering is investigated. Corrections to the usual parity-violating asymmetry are determined at tree level. Together with available data, this result can be used to improve existing estimates for the Lorentz-violating kW coefficient by two orders of magnitude. Some implications for past and future experiments are mentioned.
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spelling doaj.art-3ddae7274426451b8ccad5c0213531fb2022-12-21T23:01:12ZengElsevierPhysics Letters B0370-26932016-11-017623340Møller scattering and Lorentz-violating Z bosonsHao Fu0Ralf Lehnert1School of Physics, Peking University, Beijing 100871, ChinaIndiana University Center for Spacetime Symmetries, Bloomington, IN 47405, USA; Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany; Corresponding author.Lorentz-symmetry breakdown in weak-interaction physics is studied. In particular, the CPT-even Lorentz-violating contributions to the Z boson in the minimal Standard-Model Extension are considered, and in this context polarized electron–electron scattering is investigated. Corrections to the usual parity-violating asymmetry are determined at tree level. Together with available data, this result can be used to improve existing estimates for the Lorentz-violating kW coefficient by two orders of magnitude. Some implications for past and future experiments are mentioned.http://www.sciencedirect.com/science/article/pii/S0370269316304907
spellingShingle Hao Fu
Ralf Lehnert
Møller scattering and Lorentz-violating Z bosons
Physics Letters B
title Møller scattering and Lorentz-violating Z bosons
title_full Møller scattering and Lorentz-violating Z bosons
title_fullStr Møller scattering and Lorentz-violating Z bosons
title_full_unstemmed Møller scattering and Lorentz-violating Z bosons
title_short Møller scattering and Lorentz-violating Z bosons
title_sort moller scattering and lorentz violating z bosons
url http://www.sciencedirect.com/science/article/pii/S0370269316304907
work_keys_str_mv AT haofu møllerscatteringandlorentzviolatingzbosons
AT ralflehnert møllerscatteringandlorentzviolatingzbosons