4.7 Article

Heavy-quark potential with dynamical flavors: A first-order transition

期刊

PHYSICAL REVIEW D
卷 78, 期 11, 页码 -

出版社

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.78.114012

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资金

  1. EU [MRTN-CT-2004-005104]
  2. Federal Office for STC
  3. NWO VIDI [016.069.313]
  4. INTAS [03-51-6346]

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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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