Excited baryons from the FLIC fermion action

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dc.contributor.authorMelnitchouk, W.
dc.contributor.authorHedditch, J.
dc.contributor.authorLeinweber, D.
dc.contributor.authorWilliams, A.
dc.contributor.authorZanotti, J.
dc.contributor.authorZhang, J.
dc.contributor.conference20th International Symposium on Lattice Field Theory (24 Jun 2002 - 29 Jun 2002 : MIT, CAMBRIDGE, MA)
dc.date.issued2003
dc.descriptionCopyright © 2003 Published by Elsevier B.V. Printed in U.S.A. Submitted to Cornell University’s online archive www.arXiv.org in 2003 by James Zanotti. Post-print sourced from www.arxiv.org.
dc.description.abstractMasses of positive and negative parity excited nucleons and hyperons are calculated in quenched lattice QCD using an O(a^2) improved gluon action and a fat-link clover fermion action in which only the irrelevant operators are constructed with fat links. The results are in agreement with earlier N* simulations with improved actions, and exhibit a clear mass splitting between the nucleon and its parity partner, as well as a small mass splitting between the two low-lying J^P={1/2}^- N* states. Study of different Lambda interpolating fields suggests a similar splitting between the lowest two {1/2}^- Lambda* states, although the empirical mass suppression of the Lambda*(1405) is not seen.
dc.description.statementofresponsibilityW. Melnitchouk, J.N. Hedditch, D.B. Leinweber, A.G. Williams, J.M. Zanotti and J.B. Zhang
dc.description.urihttp://www.elsevier.com/wps/find/journaldescription.cws_home/505717/description#description
dc.identifier.citationNuclear Physics B - Proceedings Supplements, 2003, vol.119, pp.293-295
dc.identifier.doi10.1016/S0920-5632(03)01542-1
dc.identifier.issn0920-5632
dc.identifier.issn1873-3832
dc.identifier.orcidLeinweber, D. [0000-0002-4745-6027]
dc.identifier.orcidWilliams, A. [0000-0002-1472-1592]
dc.identifier.orcidZanotti, J. [0000-0002-3936-1597]
dc.identifier.urihttp://hdl.handle.net/2440/18026
dc.language.isoen
dc.publisherElsevier Science BV
dc.source.urihttp://dx.doi.org/10.1016/S0920-5632(03)01542-1
dc.titleExcited baryons from the FLIC fermion action
dc.typeConference paper
pubs.publication-statusPublished

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