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Vacuum stability conditions for new $SU(2)$ multiplets

Vacuum stability conditions for new $SU(2)$ multiplets

来源:Arxiv_logoArxiv
英文摘要

We consider the addition to the Standard Model of a scalar $SU(2)$ multiplet $\Delta_n$ with dimension $n$ going from $1$ to $6$. The multiplet $\Delta_n$ is assumed to have null vacuum expectation value and an arbitrary (free) hypercharge. We determine the shape of the phase space for the new terms that appear in the scalar potential (SP); we observe in particular that, in the case of a 6-plet, the phase space is slightly concave along one of its boundaries. We determine the bounded-from-below and vacuum stability conditions on the SP for each value of $n$.

André Milagre、Darius Jur?iukonis、Luís Lavoura

物理学

André Milagre,Darius Jur?iukonis,Luís Lavoura.Vacuum stability conditions for new $SU(2)$ multiplets[EB/OL].(2025-05-08)[2025-07-16].https://arxiv.org/abs/2505.05272.点此复制

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