arXiv:1101.5398·v1·High Energy Physics — Lattice
Excited-State Hadrons using the Stochastic LapH Method
C. Morningstar🇺🇸 · A. Bell🇺🇸 · J. Bulava🇩🇪 · J. Foley🇺🇸 · K.J. Juge🇺🇸 · D. Lenkner🇺🇸 · C.H. Wong🇺🇸
Abstract
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.
Comments: 6 pages, 3 figures, talk given at Tropical QCD II, Cairns, Australia, Sept 26-Oct 1, 2010