Hyperasymptotic Expansions in QCD: The Lightest Gluelump Mass Case
Antonio Pineda
Abstract
In these proceedings, we provide a summary of our recent advancements in determining the mass of the lightest gluelump using hyperasymptotic expansions in Quantum Chromodynamics (QCD) Ayala2025. This paper details our methodology, our precise determination of leading renormalon normalization constants, and our extraction of the gluelump mass from two independent physical systems, yielding a final combined, renormalization-group-invariant and scheme-independent result of ΛB PV = 2.44(7) r0-1.
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