Speaker
Description
The minimal U$(1)_X$ extension of the Standard Model (SM) is a simple and well-motivated extension of the SM, which supplements the SM with the seesaw mechanism for naturally generating the light neutrino masses and offers various interesting phenomenologies.In the model, the U$(1)_X$ charge of each SM field is characterized by the U$(1)_X$ charge of the SM Higgs doublet with a free parameter $x_H$ and $x_\Phi$. Due to the U$(1)_X$ charge of the Higgs doublet, the Higgs boson has a trilinear coupling with the $Z$ and the U$(1)_X$ gauge boson $(Z^\prime)$ due to $x_H\neq 0$. With this coupling, a new process for the associated Higgs boson production with $Z$ boson arises through a $Z^\prime$ boson in the $s$-channel at high energy colliders. In this paper, we calculate the associated Higgs boson production at high energy colliders and show the interesting effects of the new $Z^\prime$ boson mediated process, which can be tested in the future. Such models contains three SM singlet RHNs which generate the light neutrino mass through the seesaw mechanism after the U$(1)_X$ breaking. We will also study the prospect of such RHN productions through the Higgs boson at the colliders which can probe a suitable neutrino mass generation mechanism.
