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arXiv · 2403.00754

The quark-mass dependence of the potential energy between static colour sources in the QCD vacuum with light and strange quarks

John Bulava·Francesco Knechtli·Vanessa Koch·Colin Morningstar·Michael Peardon
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Abstract

The low-lying energy spectrum of the static-colour-source-anti-source system in a vacuum containing light and strange quarks is computed using lattice QCD for a range of different light quark masses. The resulting levels are described using a simple model Hamiltonian and the parameters in this model are extrapolated to the physical light-quark masses. In this framework, the QCD string tension is found to be $\sqrt{\sigma}=445(3)_{\rm stat}(6)_{\rm sys}$ MeV.

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John Bulava, Francesco Knechtli, Vanessa Koch, Colin Morningstar, Michael Peardon. 2024-03-01. The quark-mass dependence of the potential energy between static colour sources in the QCD vacuum with light and strange quarks. https://arxiv.org/abs/2403.00754

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