Quenched QCD with O(a) improvement: I. The spectrum of light hadrons

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dc.creatorUKQCD Collaboration
dc.creatorBowler, K. C.
dc.creatorBoyle, P.
dc.creatorGarden, J.
dc.creatorKenway, R. D.
dc.creatorRichards, D. G.
dc.creatorRowland, P. A.
dc.creatorRyan, S. M.
dc.creatorSimma, H.
dc.creatorMichael, C.
dc.creatorShanahan, H. P.
dc.creatorWittig, H.
dc.date1999-10-12
dc.date2000-03-06
dc.date.accessioned2026-07-07T11:47:22Z
dc.date.available2026-07-07T11:47:22Z
dc.descriptionWe 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 non-perturbative definition of the improvement coefficient c_sw, 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 non-perturbative 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.
dc.description36 pages, 7 postscript figures, REVTEX; typo in Table XVIII corrected; extended discussion of finite-size effects in sections III and VII; version to appear in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/hep-lat/9910022
dc.identifierhttp://arxiv.org/abs/hep-lat/9910022
dc.identifierPhys.Rev.D62:054506,2000
dc.identifierdoi:10.1103/PhysRevD.62.054506
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/202552
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Phenomenology
dc.titleQuenched QCD with O(a) improvement: I. The spectrum of light hadrons
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