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

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.

16 pages, 4 figures; ver2 matched to published version

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• Current status on pair-produced muon-philic vectorlike leptons in multilepton channels at the LHC
• CDF-II W boson mass in the Dirac Scotogenic model
• $W$-Boson Mass Anomaly from a General $SU(2{)}_L$ Scalar Multiplet
• An $SU(5)\times U(1{)}^{\prime }$ SUSY GUT with a "vector-like chiral" fourth family to fit all low energy data, including the muon $g-2$
• Semi-visible dark photon in a model with vector-like leptons for the $(g-2{)}_{e,\mu }$ and $W$-boson mass anomalies
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• Machine learning study on single production of a singlet vectorlike lepton at the Large Hadron Collider
• W boson mass in the NP models with extra $U(1)$ gauge group