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arXiv · 1511.05225

Muon g$-$2 in two-Higgs-doublet models

Eung Jin Chun
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Abstract

Updating various theoretical and experimental constraints on the four different types of two-Higgs-doublet models (2HDMs), we find that only the ``lepton-specific" (or ``type X") 2HDM can explain the present muon g$-$2 anomaly in the parameter region of large $\tanβ$, a light CP-odd boson, and heavier CP-even and charged bosons which are almost degenerate. The severe constraints on the models come mainly from the consideration of vacuum stability and perturbativity, the electroweak precision data, the $b$-quark observables like $B_S \to μμ$, the precision measurements of the lepton universality as well as the 125 GeV boson property observed at the LHC.

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Eung Jin Chun. 2015-11-16. Muon g$-$2 in two-Higgs-doublet models. https://doi.org/10.1007/s12043-016-1254-2

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