Multi-Quark Energies in SU(2) Lattice Gauge Theory
A. M. Green, C. Michael, J. E. Paton, M. E. Sainio
Abstract
Energies of four-quark systems have been extracted in a quenched SU(2) lattice Monte Carlo calculation for two different geometries, rectangular and colinear, with β=2.4 and lattice size 163× 32. Also, by going to a lattice 243× 32 and to β=2.5, the effect of the finite lattice size and scaling are checked. An attempt is made to understand these results in terms of a model based on interquark two-body potentials but modified very significantly by a phenomenological gluon-field overlap factor.
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