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arXiv · 2405.05839

Exploring solutions to the muon g-2 anomaly in a 3-3-1 model under flavor constraints

A. Doff·Joao Paulo Pinheiro·C. A. de S. Pires
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Abstract

The magnetic moment of the muon can receive significant two-loop contributions from a light pseudoscalar. Notably, the spectrum of scalars of 3-3-1 models include one pseudoscalar. However this scalar spectrum inevitably gives rise to flavor-changing neutral current (FCNC) processes. In this study, we examine, within the 3-3-1 model with right-handed neutrinos, whether such spectrum of scalars can account for the anomalous magnetic moment of the muon, considering the constraints imposed by $B$-meson decays, meson mixing, and invisible Higgs decays. Our principal finding reveals that a pseudoscalar with mass around 66 GeV and $\tan \beta =58$ can account for the $g-2$ anomaly without conflicting with flavor physics.

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A. Doff, Joao Paulo Pinheiro, C. A. de S. Pires. 2024-05-09. Exploring solutions to the muon g-2 anomaly in a 3-3-1 model under flavor constraints. https://arxiv.org/abs/2405.05839

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