QCD sum rules study of Ξc and Ξb baryons

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dc.contributor.authorDuraes F.O.
dc.contributor.authorNielsen M.
dc.date.accessioned2024-03-13T01:38:55Z
dc.date.available2024-03-13T01:38:55Z
dc.date.issued2007
dc.description.abstractWe use QCD sum rules to study the masses of the baryons Ξc and Ξb. We work with a current where the strange and the light quarks are in a relative spin zero, at leading order in αs. We consider the contributions of condensates up to dimension six. For Ξb we get mΞb = (5.75 ± 0.25) GeV, and for Ξc we get mΞc = (2.5 ± 0.2) GeV, both in excellent agreement with the experimental values. We also make predictions to the state Ωb (s s b) obtaining mΩb = (5.82 ± 0.23) GeV. © 2007 Elsevier B.V. All rights reserved.
dc.description.firstpage40
dc.description.issuenumber1-3
dc.description.lastpage44
dc.description.volume658
dc.identifier.doi10.1016/j.physletb.2007.10.054
dc.identifier.issn0370-2693
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/37595
dc.relation.ispartofPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
dc.rightsAcesso Aberto
dc.titleQCD sum rules study of Ξc and Ξb baryons
dc.typeArtigo
local.scopus.citations40
local.scopus.eid2-s2.0-36248931561
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=36248931561&origin=inward
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