Tag: Bound state

Toponium masses estimated from QCD sum rules
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in Particle physics
What the study found The study estimates masses for purely top-quark bound states: pseudoscalar toponium (η_t), vector toponium (ψ_t), and the triply-top baryon (Ω_ttt). The authors report that the pseudoscalar toponium estimate is consistent with near-threshold events seen in recent experiments, and that the Ω_ttt central mass slightly exceeds the sum of the three top-quark…
True muonium production in J/ψ radiative decay may be detectable
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in Physics and Astronomy
True muonium production via J/psi radiative decay at electron-positron colliders offers experimental pathway to confirm QED prediction of muon-antimuon bound states.

Toponium masses estimated from QCD sum rules