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.
