Hunting for a charged Higgs boson pair in proton-proton collisions

Arroyo-Ureña, M. A.; Rosado-Navarro, S.; Salazar, Humberto; Herrera-Chacón, E. A.

Abstract

We explore the production and possible detection of a charged scalar Higgs pair H-H+ decaying into the final state μνμcb in proton-proton collisions at the LHC and its next step, the high luminosity LHC (HL-LHC). The charged scalars are predicted within the theoretical framework of the two-Higgs doublet model of type III (2HDM-III). As a test and validation of the model, we identify regions of the 2HDM-III parameter space that accommodate the current excess of events at 3σ in the process BR(t→H±b)×BR(H±→cb) for MH±=130 GeV, as reported by ATLAS Collaboration. Theoretical and additional experimental constraints are also included. Based on this, we propose realistic scenarios that could be brought under experimental scrutiny at the HL-LHC. Assuming the most favorable scenario, we predict a signal significance at the level of 5σ for a charged scalar boson mass MH± in the 100-350 GeV range.

Citation

Arroyo-Ureña, M. A., Rosado-Navarro, S., Salazar, H., & Herrera-Chacón, E. A. (2025). Hunting for a charged Higgs boson pair in proton-proton collisions. Physical Review D, 111(1), Article 015023. https://doi.org/10.1103/PhysRevD.111.015023

• Journal Article Type: Article
• Acceptance Date: Dec 16, 2024
• Online Publication Date: Jan 24, 2025
• Publication Date: Jan 1, 2025
• Deposit Date: Apr 7, 2025
• Publicly Available Date: Apr 7, 2025
• Journal: Physical Review D
• Print ISSN: 2470-0010
• Electronic ISSN: 2470-0029
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 111
• Issue: 1
• Article Number: 015023
• DOI: https://doi.org/10.1103/PhysRevD.111.015023
• Public URL: https://durham-repository.worktribe.com/output/3782358