The Higgs boson decay $h\to bs$ in the $U(1{)}_X$SSM

Abstract

In the $U(1{)}_X$SSM, we delve into the flavor violation of $h\to bs$, where $h$ is identified with the SM-like Higgs boson discovered at the LHC. As the U(1) extension of the minimal supersymmetric standard model (MSSM), the U(1)XSSM has new super fields such as right-handed neutrinos and three Higgs singlets. We conduct a thorough analysis of the underlying mechanisms and parameter dependencies of $h\to bs$ in the $U(1{)}_X$SSM. In the $U(1{)}_X$SSM, we discover that the Br$(h\to bs)$ for the Higgs decay to $bs$ could significantly differ from the expectation in the standard model (SM), depending on the values of the new parameters introduced in the model. Our research not only contributes to a deeper understanding of Higgs physics within the $U(1{)}_X$SSM, but also provides valuable guidance for new physics (NP).

24 pages,8 figures

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