Work

Prospects for toponium formation at the LHC in the single-lepton mode

Year: 2026

Type: article

Abstract: We investigate the formation of toponium in the single-leptonic final state at the LHC. Our study builds on our recently proposed framework that incorporates the associated non-perturbative effects into Monte Carlo simulations through the Green’s function of the non-relativistic QCD Hamiltonian and the re-weighting of hard-scattering matrix elements. This allows us to perform a phenomenological analysis that demonstrates that a statistically significant excess from toponium formation could already be accessible in Run 2 data. Moreover, our results highlight observables that provide handles for signal characterisation and establish the single-leptonic channel as a competitive and complementary avenue for the ongoing exploration of toponium signatures at colliders.

Source: Physics Letters B

DOI: 10.1016/j.physletb.2026.140436

Authors: Benjamin Fuks, Kaoru Hagiwara, Kai Ma, Léandre Munoz-Aillaud, Ya-Juan Zheng