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dc.contributor.authorRYAN, SINEAD MARIE
dc.date.accessioned2008-10-09T15:03:30Z
dc.date.available2008-10-09T15:03:30Z
dc.date.issued2000
dc.date.submitted2000en
dc.identifier.citationBowler, K. C. Boyle, P., Garden, J., Kenway, R. D., Richards, D. G., Rowland, P.A., Ryan, S. M., Simma, H. `Quenched QCD with O(a) improvement: The spectrum of light hadrons? in Physical Review D, (62), 2000, pp 054506-1 - 054506-19en
dc.identifier.issn35119
dc.identifier.otherY
dc.identifier.otherYen
dc.identifier.urihttp://hdl.handle.net/2262/22959
dc.descriptionPUBLISHEDen
dc.description.abstractWe present a comprehensive study of the masses of pseudoscalar and vector mesons, as well as octet and decuplet baryons computed in O(a)-improved quenched lattice QCD. Results have been obtained using the nonperturbative definition of the improvement coefficient csw , and also its estimate in tadpole improved perturbation theory. We investigate effects of improvement on the incidence of exceptional configurations, mass splittings, and the parameter J. By combining the results obtained using nonperturbative and tadpole improvement in a simultaneous continuum extrapolation, we can compare our spectral data to experiment. We confirm earlier findings by the CP-PACS Collaboration that the quenched light hadron spectrum agrees with experiment at the 10% level.en
dc.description.sponsorshipThis work was supported by the Particle Physics & Astronomy Research Council ~PPARC! through grants GR/L56336 and GR/L29927. We also acknowledge the support by EPSRC under grant GR/K41663. H.P.S. acknowledges the support of the Leverhulme foundation and the JSPS Research for the Future program. H.W. is grateful to Akira Ukawa for the hospitality at the Center of Computational Physics, University of Tsukuba, where part of this work was completed. D.G.R. and H.W. acknowledge the financial support of PPARC.en
dc.format.extent054506en
dc.format.extent188649 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.relation.ispartofseriesPhysical Review Den
dc.relation.ispartofseries62en
dc.rightsYen
dc.subjectPure & Applied Mathematicsen
dc.titleQuenched QCD with O(a) improvement: The spectrum of light hadronsen
dc.typeJournal Articleen
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/ryansin
dc.identifier.rssinternalid35119
dc.identifier.rssurihttp://dx.doi.org/10.1103/PhysRevD.62.054506
dc.identifier.rssurihttp://prola.aps.org/pdf/PRD/v62/i5/e054506


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