A multi-charged particle model with local U(1)μ-τ to explain muon g–2, flavor physics,and possible collider signature |
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Authors: | Nilanjana Kumar Takaaki Nomura Hiroshi Okada |
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Affiliation: | 1. Department of Physics and Astrophysics, University of Delhi, Delhi 110007, India2. School of Physics, KIAS, Seoul 02455, Korea3. Asia Pacific Center for Theoretical Physics (APCTP) - Headquarters San 31, Hyoja-dong, Nam-gu, Pohang 790-784, Korea4. Department of Physics, Pohang University of Science and Technology, Pohang 37673, Korea |
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Abstract: | We consider a model with multi-charged particles, including vector-like fermions, and a charged scalar under a local \begin{document}$ U(1)_{\mu - \tau} $\end{document}![]() symmetry. We search for an allowed parameter region explaining muon anomalous magnetic moment (muon \begin{document}$ g-2 $\end{document}![]() ) and \begin{document}$ b \to s \ell^+ \ell^- $\end{document}![]() anomalies, satisfying constraints from the lepton flavor violations, Z boson decays, meson anti-meson mixing, and collider experiments. Via numerical analysis, we explore the typical size of the muon \begin{document}$ g-2 $\end{document}![]() and Wilson coefficients to explain the \begin{document}$ b \to s \ell^+ \ell^- $\end{document}![]() anomalies in our model when all other experimental constraints are satisfied. Subsequently, we discuss the collider physics of the multicharged vectorlike fermions, considering a number of benchmark points in the allowed parameter space. |
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Keywords: | new gauge boson new gauge symmetry muon anomalous magnetic moment B meson decay anomalies collider physics |
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