Flavoring the production of Higgs boson pairs

Arroyo-Urena M. A., Diaz-Cruz J. L., Herrera-Chacon E. A., Valencia-Perez T. A., Guisao J. M.

PHYSICAL REVIEW D, vol.111, no.5, 2025 (SCI-Expanded, Scopus)

  • Publication Type: Article / Article
  • Volume: 111 Issue: 5
  • Publication Date: 2025
  • Doi Number: 10.1103/physrevd.111.055028
  • Journal Name: PHYSICAL REVIEW D
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, INSPEC, MathSciNet, zbMATH, Nature Index
  • Middle East Technical University Affiliated: No

Abstract

We present a study on the possibility of observing a hypothetical particle known as the flavon HF, which is predicted in an extension of the standard model that includes the so-called Froggatt-Nielsen mechanism. The proposed decay channel is through a bbh final state, where the Higgs boson (h) decays to a pair of photons or a pair of b quarks & eth;h -* gamma gamma, bb& THORN;. We found that, under special scenarios of the model parameter space, the processes analyzed could provide evidence for the existence of the flavon in the next stage of the LHC: the High Luminosity LHC. Specifically, we predict a signal significance of 5 sigma (2 sigma) in the h -* bb (h -* gamma gamma) channel for a flavon mass of 800 (900) GeV and an integrated luminosity of 2500 & eth;3000 & THORN; fb-1.