Unveiling E$_6$SSM Scalar Diquarks at the HL-LHC

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Main Authors: Ali, Murad, Khalil, Shaaban, Moretti, Stefano, Munir, Shoaib, Waltari, Harri
Format: Preprint
Published: 2024
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author Ali, Murad
Khalil, Shaaban
Moretti, Stefano
Munir, Shoaib
Waltari, Harri
author_facet Ali, Murad
Khalil, Shaaban
Moretti, Stefano
Munir, Shoaib
Waltari, Harri
contents We investigate the phenomenology of scalar diquarks with sub-TeV masses within the framework of the $E_6$ Supersymmetric Standard Model (E$_6$SSM) 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 $\sqrt{s}=13$ 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.
format Preprint
id arxiv_https___arxiv_org_abs_2412_19445
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Unveiling E$_6$SSM Scalar Diquarks at the HL-LHC
Ali, Murad
Khalil, Shaaban
Moretti, Stefano
Munir, Shoaib
Waltari, Harri
High Energy Physics - Phenomenology
We investigate the phenomenology of scalar diquarks with sub-TeV masses within the framework of the $E_6$ Supersymmetric Standard Model (E$_6$SSM) 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 $\sqrt{s}=13$ 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.
title Unveiling E$_6$SSM Scalar Diquarks at the HL-LHC
topic High Energy Physics - Phenomenology
url https://arxiv.org/abs/2412.19445