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

References in corpus (21)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• An Introduction to PYTHIA 8.2
• MadAnalysis 5, a user-friendly framework for collider phenomenology
• Searches for additional Higgs bosons and for vector leptoquarks in $\tau \tau$ final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• The 96 GeV Diphoton Excess in the Seesaw Extensions of the Natural NMSSM
• Possible indications for new Higgs bosons in the reach of the LHC: N2HDM and NMSSM interpretations
• The CMS di-photon excess at 95 GeV in view of the LHC Run 2 results
• The 95.4 GeV di-photon excess at ATLAS and CMS
• Excesses in the low-mass Higgs-boson search and the W-boson mass measurement
• $SU(2{)}_L$ triplet scalar as the origin of the 95 GeV excess?
• Scrutinizing the 95-100 GeV di-tau excess in the top associated process
• The "96 GeV excess" at the LHC
• Multiphoton signals of a (96 GeV?) stealth boson
• Asymmetric di-Higgs signals of the next-to-minimal 2HDM with a $U(1)$ symmetry
• Fermion mass hierarchy in an extended left-right symmetric model
• A light dilaton at the LHC
• Chasing the two-Higgs doublet model in the di-Higgs production
• Constraining the Georgi-Machacek Model with a Light Higgs
• Discovery prospects of a light charged Higgs near the fermiophobic region of Type-I 2HDM

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