Seesaw model with hidden $SU(2{)}_H\times U(1{)}_X$ gauge symmetry

Abstract

We propose a seesaw model with a hidden gauge symmetry $SU(2{)}_H\times U(1{)}_X$ where two types of standard model singlet fermions in realizing a seesaw mechanism are organized into $SU(2{)}_H$ doublet. Then we formulate scalar and gauge sector, neutrino mass matrix and lepton flavor violations. In our gauge sector, $Z$-$Z^{\prime }$ mixing appears after spontaneous symmetry breaking and we investigate constraint from $\rho$-parameter. In addition we discuss $Z^{\prime }$ production at the large hadron collider via $Z$-$Z^{\prime }$ mixing, where $Z^{\prime }$ tends to dominantly decay into heavy neutrinos.

16 pages, 2 figures, version accepted for publication in PRD

References in corpus (4)

• Implications of CTEQ global analysis for collider observables
• Heavy Majorana neutrino pair productions at the LHC in minimal U(1) extended Standard Model
• LHC Search for Right-handed Neutrinos in $Z^{\prime }$ Models
• A Linear seesaw model with hidden gauge symmetry

Cited by in corpus (2)

• A two-loop induced neutrino mass model, dark matter, and LFV processes ${\ell }_i\to {\ell }_j\gamma$, and $\mu e\to ee$ in a hidden local $U(1)$ symmetry
• A radiatively induced neutrino mass model with hidden local $U(1)$ and LFV processes ${\ell }_i\to {\ell }_j\gamma$, $\mu \to e{Z}^{\prime }$ and $\mu e\to ee$