Excited State Nucleon Spectrum with Two Flavors of Dynamical Fermions

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dc.creatorBulava, John M.
dc.creatorEdwards, Robert G.
dc.creatorEngelson, Eric
dc.creatorFoley, Justin
dc.creatorJoó, Bálint
dc.creatorLichtl, Adam
dc.creatorLin, Huey-Wen
dc.creatorMathur, Nilmani
dc.creatorMorningstar, Colin
dc.creatorRichards, David G.
dc.creatorWallace, Stephen J.
dc.date2008-12-31
dc.date.accessioned2026-07-07T12:51:29Z
dc.date.available2026-07-07T12:51:29Z
dc.descriptionHighly excited states for isospin 1/2 baryons are calculated for the first time using lattice QCD with two flavors of dynamical quarks. Anisotropic lattices are used with two pion masses: 416(36) MeV and 578(29) MeV. The lowest four energies are reported in each of the six irreducible representations of the octahedral group at each pion mass. The lattices used have dimensions 24^3x64, spatial lattice spacing a_s = 0.11 fm and temporal lattice spacing a_t = 1/3 a_s. Clear evidence is found for a 5/2^-state in the pattern of negative-parity excited states. This agrees with the pattern of physical states and spin 5/2 has been realized for the first time on the lattice.
dc.description21 pages, 12 figures
dc.identifierhttps://arxiv.org/abs/0901.0027
dc.identifierhttp://arxiv.org/abs/0901.0027
dc.identifierPhys.Rev.D79:034505,2009
dc.identifierdoi:10.1103/PhysRevD.79.034505
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/223001
dc.subjectHigh Energy Physics - Lattice
dc.titleExcited State Nucleon Spectrum with Two Flavors of Dynamical Fermions
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