Higgs phenomenology in the minimal $B-L$ extension of the Standard Model at LHC

TL;DR

This paper explores the phenomenology of the Higgs sector in the minimal B-L extension of the Standard Model at the LHC, focusing on the implications of an extra Z' gauge boson and heavy Higgs for collider signatures.

Contribution

It derives unitarity bounds for the model and analyzes potential collider signatures of the light and heavy Higgs bosons at the LHC.

Findings

Unitarity bounds established for the B-L model parameters.

Predicted signatures for light and heavy Higgs at the LHC.

Analysis of Z' gauge boson implications.

Abstract

We present some phenomenology of the Higgs sector of the Minimal $B-L$ U(1) Extension of the Standard Model at the Large Hadron Collider. In this model, the existence of an extra gauge boson ($Z'$) and an extra scalar (heavy Higgs) are predicted as naturally related with the breaking of the $B-L$ (baryon minus lepton number) symmetry. For this, we have started by deriving the unitarity bounds in the high energy limit for the Minimal $B-L$ Model parameter space. This was accomplished by analysing the full class of Higgs and would-be Goldstone boson two-to-two scatterings at tree level (exploiting the Equivalence Theorem). Hence, we studied some peculiar signature that could be observed at the CERN machine in the search of both light and heavy Higgs bosons.