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arXiv · 2205.10480

$W$ mass in a model with vector-like leptons and $U(1)^\prime$

Junichiro Kawamura·Stuart Raby
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Abstract

We study the effects of vector-like leptons on the $W$ boson mass in a model with a vector-like $U(1)^\prime$ gauge symmetry. This model provides simultaneous explanations for the recent anomalies in the muon anomalous magnetic moment and the semi-leptonic decays of $B$ mesons. We found that the recent result of the $W$ boson mass precise measurement at CDF can be explained if the charged (neutral) vector-like lepton is lighter than 250 (80) GeV. The light vector-like leptons may not be excluded by collider experiments if these decay to a physical mode of the $U(1)^\prime$ breaking scalar field.

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Junichiro Kawamura, Stuart Raby. 2022-05-21. $W$ mass in a model with vector-like leptons and $U(1)^\prime$. https://doi.org/10.1103/physrevd.106.035009

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