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arXiv · 2501.15670

Hybrid static potentials and gluelumps on $N_f=3+1$ ensembles

Roman Höllwieser·Francesco Knechtli·Tomasz Korzec·Michael Peardon·Laura Struckmeier·Juan Andrés Urrea-Niño
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Abstract

QCD permits the existence of hybrid mesons that are made up of both quarks and gluons, including exotic states, i.e., quantum numbers prohibited for pure quark-antiquark states, with possible candidates found in experiments. We present static hybrid potentials measured via Laplace trial states together with static-light meson thresholds on $N_f=3+1$ dynamical fermion ensembles with 420 MeV pions. Furthermore, we measure corresponding gluelump masses which refer to the $R\rightarrow0$ limit of the hybrid potentials and are essential input parameters for effective models to describe hybrid mesons.

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Roman Höllwieser, Francesco Knechtli, Tomasz Korzec, Michael Peardon, Laura Struckmeier, Juan Andrés Urrea-Niño. 2025-01-26. Hybrid static potentials and gluelumps on $N_f=3+1$ ensembles. https://arxiv.org/abs/2501.15670

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