Nature of the light scalar mesons

dc.creatorVijande, J.
dc.creatorValcarce, A.
dc.creatorFernandez, F.
dc.creatorSilvestre-Brac, B.
dc.date2005-08-11
dc.date.accessioned2026-07-07T10:29:38Z
dc.date.available2026-07-07T10:29:38Z
dc.descriptionDespite the apparent simplicity of meson spectroscopy, light scalar mesons cannot be accommodated in the usual $q\bar q$ structure. We study the description of the scalar mesons below 2 GeV in terms of the mixing of a chiral nonet of tetraquarks with conventional $q\bar q$ states. A strong diquark-antidiquark component is found for several states. The consideration of a glueball as dictated by quenched lattice QCD drives a coherent picture of the isoscalar mesons.
dc.description14 pages, 1 figure, accepted for publication in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/hep-ph/0508142
dc.identifierhttp://arxiv.org/abs/hep-ph/0508142
dc.identifierPhys.Rev.D72:034025,2005
dc.identifierdoi:10.1103/PhysRevD.72.034025
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/177869
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.subjectNuclear Theory
dc.titleNature of the light scalar mesons
dc.typetext

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