Abstract
Our progress in computing the spectrum of excited baryons and mesons in lattice QCD is described. Sets of spatially‐extended hadron operators with a variety of different momenta 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 isoscalar mesons in the scalar, pseudoscalar, and vector channels, and on the two‐pion system of total isospin I = 0,1,2.
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