Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1996-03-29
Nucl.Phys. B485 (1997) 185-240
Physics
High Energy Physics
High Energy Physics - Theory
110 pages + 1 fig., uuencoded compressed tar-file (190 kb) revised and shortened for readability. Technical derivations relega
Scientific paper
10.1016/S0550-3213(96)00566-4
The lattice Coulomb-gauge hamiltonian is derived from the transfer matrix of Wilson's Euclidean lattice gauge theory, wherein the lattice form of Gauss's law is satisfied identically. The restriction to a fundamental modular region (no Gribov copies) is implemented in an effective hamiltonian by the addition of a "horizon function" $G$ to the lattice Coulomb-gauge hamiltonian. Its coefficient $\gamma_0$ is a thermodynamic parameter that ultimately sets the scale for hadronic mass, and which is related to the bare coupling constant $g_0$ by a "horizon condition". This condition determines the low-momentum behavior of the (ghost) propagator that transmits the instantaneous longitudinal color-electric field, and thereby provides for a confinement-like feature in leading order in a new weak-coupling expansion.
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