S. Kim et Dk. Sinclair, LIGHT HADRON SPECTRUM OF QUENCHED QCD ON A 32(3) X 64 LATTICE, Physical review. D. Particles and fields, 48(9), 1993, pp. 4408-4418
We have measured the spectrum of light hadrons (pi, rho, a1, b1, f0/a0
, N, and DELTA) in the quenched approximation to lattice QCD on a 32(3
) x 64 lattice at beta = 6/g2 = 6.5. For these measurements we have us
ed staggered quark propagators from two different wall sources. The qu
ark masses used were m(q) = 0.01, m(q) = 0.005, and m(q) = 0.025 (latt
ice units), allowing an m(pi)/m(rho) as low as approximately 0.4. We w
ere able to verify the PCAC relation m(pi)2 is-proportional-to m(q), a
nd estimate f(pi) = 93(4) MeV.