ar X iv : h ep - p h / 05 08 14 2 v 1 1 1 A ug 2 00 5 Nature of the light scalar mesons
نویسندگان
چکیده
Despite the apparent simplicity of meson spectroscopy, light scalar mesons cannot be accommodated in the usual q ¯ 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 ¯ 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.
منابع مشابه
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