Phenomenology of the minimal $B-L$ extension of the Standard Model: the Higgs sector

TL;DR

This paper explores the unique Higgs sector phenomenology in the minimal $B-L$ extension of the Standard Model, highlighting novel production and decay channels at the LHC with distinctive signatures involving Higgs, $Z'$, and heavy neutrinos.

Contribution

It provides a detailed analysis of the Higgs sector in the minimal $B-L$ model, identifying new production and decay channels accessible at the LHC energies.

Findings

Multiple novel Higgs production and decay channels identified.

Distinctive signatures involving Higgs, $Z'$, and heavy neutrinos.

Potential observability at LHC energy stages of 7 and 14 TeV.

Abstract

We investigate the phenomenology of the Higgs sector of the minimal $B-L$ extension of the Standard Model. We present results for both the foreseen energy stages of the Large Hadron Collider ($\sqrt s=7$ and 14 TeV). We show that in such a scenario several novel production and decay channels involving the two physical Higgs states could be accessed at such a machine. Amongst these, several Higgs signatures have very distinctive features with respect to those of other models with enlarged Higgs sector, as they involve interactions of Higgs bosons between themselves, with $Z'$ bosons as well as with heavy neutrinos.