Heavy quark potential with dynamical flavors: a first order transition

Physics – High Energy Physics – High Energy Physics - Theory

Scientific paper

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4 pages; reference updated

Scientific paper

10.1103/PhysRevD.78.114012

We study the static potential between external quark-antiquark pairs in a strongly coupled gauge theory with a large number of colors and massive dynamical flavors, using a dual string description. When the constituent mass of the dynamical quarks is set below a certain critical value, we find a first order phase transition between a linear and a Coulomb-like regime. Above the critical mass the two phases are smoothly connected. We also study the dependence on the theory parameters of the quark-antiquark separation at which the static configuration decays into specific static-dynamical mesons.

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