Unveiling E₆SSM Scalar Diquarks at the HL-LHC

Abstract

We investigate the phenomenology of scalar diquarks with sub-TeV masses within the framework of the E₆ Supersymmetric Standard Model (E₆SSM) at the Large Hadron Collider (LHC). Focusing on the lightest of the six diquarks predicted by the model, we select some representative low masses for them in a parameter space region consistent with experimental constraints from direct searches for additional Higgs boson(s), Cold Dark Matter (CDM), and supersymmetry, as well as from flavor physics analyses. Using Monte Carlo (MC) simulations, we assess these benchmark points against the latest LHC results corresponding to an integrated luminosity of 140 fb⁻¹. We further evaluate the signal significance of the pair-production of these diquarks, when each of them decays into tb pairs, at the s√=13 TeV LHC Run 3 with design integrated luminosity of 300 fb⁻¹, and also at the 3000 fb⁻¹ High-Luminosity LHC (HL-LHC). Our analysis yields a statistical significance exceeding 3σ at the HL-LHC for diquark masses up to 1 TeV, indicating promising prospects for their discovery.

More information

Identifiers

ORCID for Stefano Moretti: orcid.org/0000-0002-8601-7246

Catalogue record

Export record

Altmetrics