TL;DR
This paper explores the unquenched quark model's application to charmonium and bottomonium spectra, incorporating self-energy corrections and hybrid meson effects, and extends the formalism to include hybrid loops and spectrum calculations in Coulomb Gauge QCD.
Contribution
It introduces an extension of the unquenched quark model to include hybrid mesons and hybrid loops, providing new insights into meson spectra.
Findings
Self-energy corrections improve charmonium and bottomonium spectrum predictions.
Extension to hybrid mesons offers a new perspective on meson structure.
Hybrid meson spectrum calculated in Coulomb Gauge QCD.
Abstract
In this contribution, we briefly discuss the results for charmonium and bottomonium spectra with self-energy corrections in the unquenched quark model, due to the coupling to the meson-meson continuum. The UQM formalism can be extended to include also the effects of hybrid mesons, i.e. hybrid loops. Finally, we discuss the results of a calculation of hybrid mesons spectrum in Coulomb Gauge QCD.
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