  Accurate numerical solution of the five-body Schrodinger equation is effected
via variational Monte Carlo in a correlated quark model. The spectrum is
assumed to exhibit a narrow resonance with strangeness S=+1. A fully
antisymmetrized and pair-correlated five-quark wave function is obtained for
the assumed non-relativistic Hamiltonian which has spin, isospin, and color
dependent pair interactions and many-body confining terms which are fixed by
the non-exotic spectra. Gauge field dynamics are modeled via flux tube exchange
factors. The energy determined for the ground states with spin-parity 1/2-
(1/2+) is 2.22 GeV (2.50 GeV). A lower energy negative parity state is
consistent with recent lattice results.
