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Title: Four-quark interactions in finite-temperature, SU(2), lattice gauge theory

Journal Article · · Phys. Rev. D; (United States)

Non-Gaussian critical exponents for the confinement-deconfinement phase transition in SU(2) lattice gauge theory indicate that the associated three-dimensional field theory of Wilson lines has nontrivial interactions. A numerical approximation to the first derivative of the effective potential for the lines is used to estimate the strength of the four-line interaction. Moderate to strong coupling is found. This indicates that at the scale of the string tension, the four-quark free energy differs substantially from the contribution made by pairwise strings.

Research Organization:
Department of Physics, University of California, Davis, California 95616
OSTI ID:
6933090
Journal Information:
Phys. Rev. D; (United States), Vol. 37:12
Country of Publication:
United States
Language:
English