Even parity excitations of the nucleon in lattice QCD

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dc.creatorLasscock, B. G.
dc.creatorHedditch, J. N.
dc.creatorKamleh, W.
dc.creatorLeinweber, D. B.
dc.creatorMelnitchouk, W.
dc.creatorWilliams, A. G.
dc.creatorZanotti, J. M.
dc.date2007-05-07
dc.date2007-07-04
dc.date.accessioned2026-07-07T10:59:58Z
dc.date.available2026-07-07T10:59:58Z
dc.descriptionWe study the spectrum of the even parity excitations of the nucleon in quenched lattice QCD. We extend our earlier analysis by including an expanded basis of nucleon interpolating fields, increasing the physical size of the lattice, including more configurations to enhance statistics and probing closer to the chiral limit. With a review of world lattice data, we conclude that there is little evidence of the Roper resonance in quenched lattice QCD.
dc.description10 pages, 4 figures, 1 table
dc.identifierhttps://arxiv.org/abs/0705.0861
dc.identifierhttp://arxiv.org/abs/0705.0861
dc.identifierPhys.Rev.D76:054510,2007
dc.identifierdoi:10.1103/PhysRevD.76.054510
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/187592
dc.subjectHigh Energy Physics - Lattice
dc.titleEven parity excitations of the nucleon in lattice QCD
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