Explaining the CDF-II W-boson mass anomaly in the Georgi–Machacek extension models

Abstract Original Georgi–Machacek model can preserve the custodial symmetry at tree level after the electroweak symmetry breaking. Unless additional $$SU(2)_c$$ S U ( 2 ) c custodial symmetry breaking effects are significant, the new physics contributions to $$\Delta m_W$$ Δ m W are always very smal...

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Bibliographic Details
Main Authors: Xiao Kang Du, Zhuang Li, Fei Wang, Ying Kai Zhang
Format: Article
Language:English
Published: SpringerOpen 2023-02-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-023-11297-1