Static hadron properties in lattice QCD

We calculate hadron masses and magnetic moments in the quenched approximation to lattice QCD, using Monte Carlo and Gauss-Seidel methods. For the mass computation, we have quite good statistics; in addition, our lattice is long enough in the “time” direction to make a rather clear separation of the lowest lying hadrons from their radial excitations. We find mass ratios which are far from the experimental values; there is evidence that this may be due to the small spatial size of the lattice (which, however, is as large or larger than that used in most previous computations). For the magnetic moments, the situation is somewhat better, presumably because the moment calculation is really a qualitative test of the constituent quark model.