Hyperasymptotic Expansions in QCD: The Lightest Gluelump Mass Case

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) \cite{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 ${\Lambda }_B^{\mathrm{PV}}=2.44(7)r_0^{-1}$.

Comments: 9 pages. Proceedings at "Loops and Legs in Quantum Field Theory (LL2026)"