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arXiv · 2508.19976

Mixing of heavy and light quarks in charmonium and light mesons

Francesco Knechtli·Jacob Finkenrath·Roman Höllwieser·Tomasz Korzec·Michael Peardon·Juan Andrés Urrea-Niño
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Abstract

We study the system of light mesons, charmonium and glueballs in the flavor singlet scalar channel where they can mix. We use lattice QCD simulations with an almost physical charm quark and three degenerate light quarks for two values of the pion mass ($m_π \approx 420, 800$ MeV). Thanks to a variational basis which includes mesonic operators with profiles in distillation space, Wilson loops and two-pion operators we detect and show results of their mixing.

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Francesco Knechtli, Jacob Finkenrath, Roman Höllwieser, Tomasz Korzec, Michael Peardon, Juan Andrés Urrea-Niño. 2025-08-27. Mixing of heavy and light quarks in charmonium and light mesons. https://arxiv.org/abs/2508.19976

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