Quantum chromodynamics at 6/g2=5.60.

Abstract

We have carried out a simulation of quantum chromodynamics using the hybrid-molecular-dynamics algorithm with two flavors of Kogut-Susskind quarks. We have used Kogut-Susskind and Wilson valence quarks to calculate the hadron mass spectrum. Among our extensive results we discuss baryon hyperfine splitting, the nucleon-to-\ensuremath{\rho} mass ratio, the sclar-to-tensor-glueball mass ratio, and the quantization and susceptibility of the topological charge. We have used a gauge coupling of 6/${\mathit{g}}^{2}$=5.60, and quark masses ${\mathit{am}}_{\mathit{q}}$=0.025 and 0.01, in generating gauge configurations on ${12}^{4}$, ${12}^{3}$\ifmmode\times\else\texttimes\fi{}24, and ${16}^{4}$ lattices.