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Sensitivity to longitudinal vector boson scattering and doubly charged Higgs boson production in W±W±jj at future hadron colliders

Aram Apyan and Samuel Kelson

Chilufya Mwewa and Marc-André Pleier

Luka Nedic

Karolos Potamianos

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Phys. Rev. D 112, 093001 – Published 4 November, 2025

DOI: https://doi.org/10.1103/99r1-vq2h

Abstract

We study the sensitivity to longitudinal vector boson scattering at a 27-, 50-, and 100-TeV pp collider using events containing two leptonically decaying same-electric-charge W bosons produced in association with two jets. The baseline FCC-hh detector parametrization within the Delphes framework is used under the assumption of fully efficient pileup mitigation. A tightly constrained phase space with a dijet mass greater than 2 TeV is considered in order to suppress the impact of potential instrumental backgrounds. Based on this setup, the expected sensitivity to the production of longitudinally polarized same-sign W boson pairs is evaluated. Additionally, expected limits are set on doubly charged Higgs bosons produced via vector boson fusion processes and decaying to same-sign W boson pairs.

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Phys. Rev. D 112, 093001– Published 4 November, 2025
  • Received 30 January 2025
  • Accepted 19 September 2025
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