Collider phenomenology in emergent $U(1)_X$ extension of the Standard Model

Abstract

We explore the phenomenology for a new neutral gauge boson which is emerged from a topologically nontrivial structure of the spacetime, focusing on its couplings to the fermions of the Standard Model. We analyze the current experimental constraints on the mass and gauge coupling of the new gauge boson, using the LEP bound and 13 TeV LHC data. In addition, we consider the future discovery prospect of the new gauge boson at the LHC with the highly integrated luminosity. Furthermore, we investigate the indirect search of the new gauge boson and its discrimination from other hypothetical gauge bosons like those that are predicted in the $U(1)_{B-L}$ and $U(1)_R$ models by considering forward-backward, left-right, and left-right-forward-backward asymmetries.Comment: 23 pages, 18 figure