Abstract
New physics can show up in various well-known processes already studied in the Standard Model, in particular by modifying decay rates to some extent. In this work we examine leptonic decays of ϒ resonances of bottomonium below [Formula: see text] production, subsequent to a magnetic dipole radiative structural transition of the vector resonance yielding a pseudoscalar continuum state, searching for the existence of a light Higgs-like neutral boson that would imply a slight but experimentally measurable breaking of lepton universality.
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