N(N*) and Delta(Delta*) on the lattice

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dc.creatorChiu, Ting-Wai
dc.creatorHsieh, Tung-Han
dc.date2004-06-11
dc.date.accessioned2026-07-07T03:39:08Z
dc.date.available2026-07-07T03:39:08Z
dc.descriptionWe investigate the mass spectrum of Nucleon and Delta (and its counterparts with strange and charm), and their excited states, in quenched lattice QCD with exact chiral symmetry. For each light baryon, we use 23 masses to determine the coefficients of the mass formula in quenched chiral perturbation theory. By chiral extrapolation to m_π=135 MeV, we obtain M_N=958(26) MeV, M_{N*}=1553(42) MeV, M_{Delta}=1216(32) MeV and M_{Delta*}=1611(17) MeV, which are identified with N(939)P_{11},N(1535)S_{11}, Delta(1232)P_{33} and Delta(1620)S_{31} respectively. Further, we directly measure the masses of Omega^{-}, M_{Omega}=1648(60) MeV, and its excited state, M_{Omega*}=1935(48) MeV; as well as the triply charmed baryon Omega_{ccc}^{++}, M_{Omega_{ccc}^{++}}=4931(22) MeV, and its excited state, M_{{Ω^{++}_{ccc}}^*}=5185(35) MeV.
dc.description11 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/hep-lat/0406016
dc.identifierhttp://arxiv.org/abs/hep-lat/0406016
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/38806
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleN(N*) and Delta(Delta*) on the lattice
dc.typetext

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