95 GeV light Higgs in the top-pair-associated diphoton channel at the LHC in the minimal dilaton model

Abstract

Motivated by experimental hints and theoretical frameworks indicating the existence of an extended Higgs sector, we explore the feasibility of detecting a 95 GeV light Higgs boson decaying into a diphoton within the minimal dilaton model at the 14 TeV LHC. Initially, we identify the correlations between the production cross section, decay branching ratios, and model parameters, e.g., the scalar mixing angle $\sin {\theta }_S$. Subsequently, we utilize Monte Carlo simulations to generate the signal of the light Higgs boson via the $pp\to t\bar{t}(s\to \gamma \gamma )$ process, along with the corresponding backgrounds. To effectively separate the signal from the dominant backgrounds $tt\gamma \gamma$, we employ a meticulous cut-based selection process. Ultimately, we find that with an integrated luminosity of $L=3000{\mathrm{fb}}^{-1}$, the regions of $|\sin {\theta }_S|>0.2$ can be covered over the $3\sigma$ level.

9 pages, 6 figures, 1 tables

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Cited by in corpus (10)

• The 95 GeV Excess in the Georgi-Machacek Model: Single or Twin Peak Resonance
• Superposition of CP-Even and CP-Odd Higgs Resonances: Explaining the 95 GeV Excesses within a Two-Higgs Doublet Model
• Vector dark matter and LHC constraints, including a 95 GeV light Higgs boson
• Interpretation of 95 GeV Excess within the Georgi-Machacek Model in Light of Positive Definiteness Constraints
• Probing Type-I 2HDM light Higgs in the top-pair-associated diphoton channel
• 96 GeV Scalar Boson in the 2HDM with U(1)_H Gauge Symmetry
• Testing a 95 GeV Scalar at the CEPC with Machine Learning
• Interpreting the 650 GeV and 95 GeV Higgs anomalies in the next-to-two-Higgs-doublet model
• Particle-level transformers for 95 GeV Higgs boson searches at future $e^{+}{e}^{-}$ Higgs factories
• Phenomenology of the standard HVM and 95.4 GeV excess