Excited-State Hadrons using the Stochastic LapH Method
  Progress in computing the spectrum of excited baryons and mesons in lattice QCD is described. Large sets of spatially-extended hadron operators are used. A new method of stochastically estimating the low-lying effects of quark propagation is utilized which allows reliable determinations of temporal correlations of both single-hadron and multi-hadron operators. The method is tested on the eta, sigma, omega mesons. 
C. Morningstar, A. Bell, J. Bulava, J. Foley, K.J. Juge, D. Lenkner,   C.H. Wong
hep-lat nucl-th