The quark-mass dependence of the potential energy between static colour sources in the QCD vacuum with light and strange quarks
arxiv(2024)
摘要
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 √(σ)=445(3)_ stat(6)_ sys
MeV.
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