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Excited states in lattice QCD with the stochastic LapH method · Around

2014

Excited states in lattice QCD with the stochastic LapH method

Bulava, John, Fahy, Brendan, Foley, Justin et al.

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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.

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S. Basak, et al.,
2005
Earlier work this paper cites.
S. Basak, et al.,
2007
Earlier work this paper cites.
J. Bulava, et al.,
2009
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