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.

Heavy-quark potential with dynamical flavors: A first-order transition / Bigazzi, Francesco; Cotrone, Aldo L.; Núñez, Carlos; Paredes, Angel. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - STAMPA. - 78:(2008), pp. 114012-114016. [10.1103/PhysRevD.78.114012]

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

COTRONE, ALDO LORENZO;
2008

Abstract

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.
2008
78
114012
114016
Bigazzi, Francesco; Cotrone, Aldo L.; Núñez, Carlos; Paredes, Angel
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1002365
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