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Precise prediction for the mass of the $W$ boson in gauged U(1) extensions of the standard model

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arxiv 2305.11931 v2 pith:Q5RHSA7B submitted 2023-05-19 hep-ph

Zoltán Péli , Zoltán Trócsányi This is my paper · ORCID
classification hep-ph
keywords bosonmasscompletecorrectionsextensionsmodelone-loopprediction
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We present the one-loop radiative corrections to the muon decay in U(1)$_z$ extensions of the standard model. We compute the mass of the $W$ boson using those corrections and compare it to an approximation of the complete one-loop prediction implemented in automated computational tools. We point out that the truncation of the complete formulas become unreliable if the mass of the $Z'$ boson, corresponding to the new U(1)$_z$ gauge group is larger than about 1 TeV.

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  1. Precision Higgs Constraints in U(1) Extensions of the Standard Model with a Light Z'-Boson

    hep-ph 2025-01 conditional novelty 5.0 of 10

    In U(1) extensions with a light Z', the Higgs decay h->Z'Z' strengthens bounds from ZZ* signal strength measurements beyond the total signal strength alone.

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