Searching for a heavy neutral CP-even Higgs boson in the BLSSM at the LHC Run 3 and HL-LHC

M. Ashry; S. Khalil; S. Moretti

doi:10.1140/epjc/s10052-024-12756-z

EPJ

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2023 Impact factor 4.2

Particles and Fields

Open Access

Eur. Phys. J. C (2024) 84: 433
https://doi.org/10.1140/epjc/s10052-024-12756-z

Regular Article - Theoretical Physics

Searching for a heavy neutral CP-even Higgs boson in the BLSSM at the LHC Run 3 and HL-LHC

M. Ashry¹^a, S. Khalil² and S. Moretti³^,4

¹ Department of Mathematics, Faculty of Science, Cairo University, 12613, Giza, Egypt
² Center for Fundamental Physics, Zewail City of Science and Technology, 12578, 6th of October City, Giza, Egypt
³ School of Physics and Astronomy, University of Southampton, Highfield, SO17 1BJ, Southampton, UK
⁴ Department of Physics and Astronomy, Uppsala University, Box 516, 751 20, Uppsala, Sweden

^a mustafa@sci.cu.edu.eg

Received: 26 February 2024
Accepted: 1 April 2024
Published online: 25 April 2024

Abstract

The detection of a heavy neutral CP-even Higgs boson of the $B - L$ $$B-L$$ Supersymmetric Standard Model (BLSSM), $h^{'}$ $$h'$$ , with $m_{h^{'}} ≃ 400 GeV$ $m_{h'}\simeq 400~\text {GeV}$ , at the Large Hadron Collider (LHC) for a center-of-mass energy of $\sqrt{s} = 14 TeV$ $\sqrt{s}=14~\text {TeV}$ , is investigated. The following production and decay channels are considered: $g g \to h^{'} \to ZZ \to 4 ℓ$ $gg\rightarrow h'\rightarrow {ZZ}\rightarrow 4\ell$ and $See Formula in PDF$ $\bar{E}_T$ (with $See Formula in PDF$ $\bar{E}_T$ being the Missing Transverse Energy (MET)), where $ℓ = e, μ$ $\ell =e,\mu$ , with integrated luminosity $L_{int} = 300 {fb}^{- 1}$ $L_{\text {int}}=300~{\text {fb}}^{-1}$ (Run 3). Furthermore, we also look into the di-Higgs channel $g g \to h^{'} \to hh \to b \bar{b} γ γ$ $gg\rightarrow h'\rightarrow {hh}\rightarrow {b{\bar{b}}\gamma \gamma }$ at the High-Luminosity LHC (HL-LHC) with an integrated luminosity of $L_{int} = 3000 {fb}^{- 1}$ $L_{\text {int}}=3000~{\text {fb}}^{-1}$ . We demonstrate that promising signals with high signal-to-background statistical significance ( $S / \sqrt{B}$ $S/\sqrt{B}$ ) can be obtained through the three aforementioned channels.

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

Funded by SCOAP³.

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