A study of pentaquarks on the lattice with overlap fermions

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dc.creatorMathur, N.
dc.creatorLee, F. X.
dc.creatorAlexandru, A.
dc.creatorBennhold, C.
dc.creatorChen, Y.
dc.creatorDong, S. J.
dc.creatorDraper, T.
dc.creatorHorvath, I.
dc.creatorLiu, K. F.
dc.creatorTamhankar, S.
dc.creatorZhang, J. B.
dc.date2004-06-17
dc.date2004-09-10
dc.date.accessioned2026-07-07T11:31:37Z
dc.date.available2026-07-07T11:31:37Z
dc.descriptionWe present a quenched lattice QCD calculation of spin-1/2 five-quark states with $uudd\bar{s}$ quark content for both positive and negative parities. We do not observe any bound pentaquark state in these channels for either I = 0 or I =1. The states we found are consistent with KN scattering states which are checked to exhibit the expected volume dependence of the spectral weight. The results are based on overlap-fermion propagators on two lattices, 12^3 x 28 and 16^3 x 28, with the same lattice spacing of 0.2 fm, and pion mass as low as ~ 180 MeV.
dc.descriptionaccepted for publication in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/hep-ph/0406196
dc.identifierhttp://arxiv.org/abs/hep-ph/0406196
dc.identifierPhys.Rev.D70:074508,2004
dc.identifierdoi:10.1103/PhysRevD.70.074508
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197325
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Lattice
dc.subjectNuclear Theory
dc.titleA study of pentaquarks on the lattice with overlap fermions
dc.typetext

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