The excited hadron spectrum in lattice QCD using a new variance reduction method

A. Bell; C.H. Wong; Colin Morningstar; C.Y. Chen; D. Lenkner; J. Bulava; J. Foley; K.J. Juge; M. Peardon

arxiv: 1011.6573 · v1 · pith:NLDNQNA7new · submitted 2010-11-30 · ✦ hep-lat

The excited hadron spectrum in lattice QCD using a new variance reduction method

Colin Morningstar , A. Bell , C.Y. Chen , D. Lenkner , C.H. Wong , J. Bulava , J. Foley , K.J. Juge

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M. Peardon

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classification ✦ hep-lat

keywords methodexcitedhadronlatticespectrumapplicationsbaryonsbeen

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Progress in calculating the spectrum of excited baryons and mesons in lattice QCD is described. Correlation matrices of sets of spatially-extended hadron operators have been studied and their effectiveness in facilitating the extraction of excited-state energies is demonstrated. First applications of the stochastic LapH method, a new method of estimating the low-lying effects of quark propagation, are presented.

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The excited hadron spectrum in lattice QCD using a new variance reduction method

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