The effective Coulomb potential in SU(3) lattice Yang-Mills theory

Details The effective Coulomb potential in SU(3) lattice Yang-Mills theory The effective Coulomb potential in SU(3) lattice Yang-Mills theory

2008-03-17

arxiv.org/abs/0803.2307v2

Phys.Rev.D78:014501,2008

Physics

High Energy Physics

High Energy Physics - Lattice

11 pages, 6 figures; more thorough discussion of the remaining Gribov ambiguity of the infrared behavior of the Coulomb potent

Scientific paper

10.1103/PhysRevD.78.014501

We study the infrared behavior of the effective Coulomb potential in lattice SU(3) Yang-Mills theory in the Coulomb gauge. We use lattices up to a size of 48^4 and three values of the inverse coupling, beta=5.8, 6.0 and 6.2. While finite-volume effects are hardly visible in the effective Coulomb potential, scaling violations and a strong dependence on the choice of Gribov copy are observed. We obtain bounds for the Coulomb string tension that are in agreement with Zwanziger's inequality relating the Coulomb string tension to the Wilson string tension.

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