$U(1{)}^{\prime }$ extensions of the $\mu \nu$SSM

J. A. Aguilar-Saavedra, I. Lara, D. E. Lopez-Fogliani +1

In the $\mu \nu$SSM, the presence of $R$-parity violating couplings involving right-handed (RH) neutrinos solves simultaneously the $\mu$- and $\nu$-problems. We explore extensions of the $…