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Excited states in lattice QCD with the stochastic LapH method

Progress in computing the spectrum of excited baryons and mesons in lattice QCD is described. Results in the zero-momentum bosonic I=1/2, S=1, T1u symmetry sector of QCD using a correlation matrix of 58 operators are presented. All needed Wick contractions are efficiently evaluated using a stochastic method of treating the low-lying modes of quark propagation that exploits Laplacian Heaviside quark-field smearing. Level identification using probe operators is discussed.

preprint2014arXivOpen access
John BulavaBrendan FahyJustin FoleyYou-Cyuan JhangKeisuke J. JugeDavid LenknerColin MorningstarChik Him Wong
hep-lat
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Open access8 authors1 topic
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John BulavaBrendan FahyJustin FoleyYou-Cyuan JhangKeisuke J. JugeDavid LenknerColin MorningstarChik Him Wong

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