Møller scattering and Lorentz-violating Z bosons

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• 作者：Hao Fu^a ; Ralf Lehnert^b ; ^c ; ^{ralehner@indiana.edu" class="auth_mail" title="E-mail the corresponding author}
• 刊名：Physics Letters B
• 出版年：2016
• 出版时间：10 November 2016
• 年：2016
• 卷：762
• 期：Complete
• 页码：33-40
• 全文大小：455 K

文摘

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 k_W$k_W$ coefficient by two orders of magnitude. Some implications for past and future experiments are mentioned.