Generic U(1)X models inspired from SO(10)

We propose the family universal U(1)X models with three right-handed neutrinos by choosing the U(1)X gauge symmetry as a linear combination of U(1)Y x U(1)chi of SO(10). To be consistent with the quantum gravity effects, we introduced a Dirac fermion chi as a dark matter candidate, which is odd under the gauged Z2 symmetry after U(1)X breaking. The isospin violation dark matter with fn/fp = -0.7 can be realized naturally, and thus the LUX, PANDAX, and XENON1T experimental constraints can be evaded. Moreover, we study the masses and mixings for Higgs and gauge bosons, consider the LHC constraints on the Z' mass, simulate various constraints from dark matter direct and indirect detection experiments, and then present the viable parameter spaces. To study the LHC Z' mass bounds on the generic U(1)X models, we considered four kinds of scenarios, where scenario II with zero U(1)X charge for right-handed up-type quarks can relax the LHC Z' mass bound a little bit.

Automated summary

In this paper, we propose a family universal U(1)X model by choosing the U(1)X gauge symmetry as a linear combination of U(1)Y x U(1)chi of SO(10). We introduce a Dirac fermion as a dark matter candidate and consider isospin violation dark matter to avoid experimental constraints. We study the masses and mixings for Higgs and gauge bosons, and present the viable parameter spaces.