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