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arXiv · 2009.08314

Explaining $g-2$ anomalies in two Higgs doublet model with vector-like leptons

Eung Jin Chun·Tanmoy Mondal
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Abstract

We consider the two Higgs doublet model (2HDM) along with a generation of vector-like lepton doublet and singlet to explain the observed discrepancies in the electron and muon anomalous magnetic moments. The type-X (lepton-specific) 2HDM can allow a light pseudo-scalar which is known to explain the muon anomalous magnetic moment at two-loop. Such a light particle induces a sizable negative contribution to the electron anomalous magnetic moment at one-loop in the presence of vector-like leptons evading all the experimental constraints.

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Eung Jin Chun, Tanmoy Mondal. 2020-09-17. Explaining $g-2$ anomalies in two Higgs doublet model with vector-like leptons. https://doi.org/10.1007/jhep11(2020)077

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