Exotic quark effects on the Higgs sector of the USSM at the LHC

TL;DR

This paper investigates the effects of exotic quarks on the Higgs sector in the USSM, calculating Higgs masses and production processes at the LHC, highlighting potential observable signatures of exotic quarks.

Contribution

It provides a detailed one-loop analysis of Higgs masses and gluon fusion production processes including exotic quark effects in the USSM.

Findings

Exotic quarks can significantly influence Higgs production at the LHC.

The heaviest scalar Higgs may be produced via gluon fusion through exotic quark loops.

Exotic scalar quarks could manifest in collider experiments.

Abstract

The Higgs sector of the U(1)-extended supersymmetric model is studied with great detail. We calculate the masses of the Higgs bosons at the one-loop level. We also calculate at the one-loop level the gluon-involving processes for the productions and decays of the scalar Higgs bosons of the model at the energy of the CERN Large Hadron Collider (LHC), where the radiative corrections due to the loops of top, bottom, and exotic quarks and their scalar partners are taken into account. We find that the exotic quark and exotic scalar quarks in the model may manifest themselves at the LHC, since the production of the heaviest scalar Higgs boson via gluon fusion processes is mediated virtually by the loops of exotic quark and exotic scalar quarks, for a reasonable parameter set of the model.