Corrections to electroweak precision observables from mixings of an exotic vector boson in light of the CDF \(W\)-mass anomaly

We enumerate various effective couplings that contribute to the mixings between an exotic vector boson \(Z^{\prime}\) and the neutral electroweak vector bosons. The miscellaneous mixing patterns can be evaluated perturbatively. The effective oblique parameters \(S^{\prime}\), \(T^{\prime}\), and \(U...

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Bibliographic Details
Published in:arXiv.org 2022-06
Main Authors: Cai, Chengfeng, Qiu, Dayun, Yi-Lei, Tang, Zhao-Huan, Yu, Hong-Hao, Zhang
Format: Article
Language:English
Subjects:
Bosons
Couplings
Parameters
Online Access:Get full text
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Summary:We enumerate various effective couplings that contribute to the mixings between an exotic vector boson \(Z^{\prime}\) and the neutral electroweak vector bosons. The miscellaneous mixing patterns can be evaluated perturbatively. The effective oblique parameters \(S^{\prime}\), \(T^{\prime}\), and \(U^{\prime}\) are calculated to compare with the electroweak precision test results. With the contributions to the non-negligible \(U^{\prime}\) parameter from the \(\epsilon_{B,W}\) parameters and the aid of some other parameters to cancel the negative \(T^{\prime}\), the recent CDF \(W\)-mass anomaly can therefore be explained.
ISSN:2331-8422
DOI:10.48550/arxiv.2204.11570