2024/11/28 by M. A. Arroyo-Ureña, Arroyo-Ureña, M. A., Alejandro Ibarra +5
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Distributed and Parallel Computing Systems #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies
paper · pdf · doi:10.48550/arxiv.2411.19170
openalex publication_date 2024/11/28 · openalex created_date 2024/12/05 · openalex updated_date 2026/07/28
We study the decay of a heavy CP-even neutral Higgs into an on-shell Standard Model-like Higgs boson and two photons, H→ hγγ, in the two-Higgs doublet model. We argue that the decay channel H→ hγγ, followed by the decay of the Standard Model Higgs h→ b b, could be observed at the 5σ level at the High-Luminosity LHC for masses of the heavy Higgs up to 950 GeV for the type-II, 650 GeV for the Lepton Specific and the Flipped 2HDMs, and 350 GeV for the type-I. We also discuss the possible role of the decay H→ hγγ in discriminating among different types of 2HDMs and in enhancing the total number of events in the final state H→ b b γγ compared to the cascade decay H→ hh followed by h→γγ h→ bb with identical final state (although with different kinematical distributions).