{ "id": "hep-ph/0508142", "version": "v1", "published": "2005-08-11T22:17:40.000Z", "updated": "2005-08-11T22:17:40.000Z", "title": "Nature of the light scalar mesons", "authors": [ "J. Vijande", "A. Valcarce", "F. Fernandez", "B. Silvestre-Brac" ], "comment": "14 pages, 1 figure, accepted for publication in Phys. Rev. D", "journal": "Phys.Rev.D72:034025,2005", "doi": "10.1103/PhysRevD.72.034025", "categories": [ "hep-ph", "hep-ex", "nucl-th" ], "abstract": "Despite 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.", "revisions": [ { "version": "v1", "updated": "2005-08-11T22:17:40.000Z" } ], "analyses": { "subjects": [ "12.39.-x", "12.38.-t" ], "keywords": [ "light scalar mesons", "quenched lattice qcd drives", "strong diquark-antidiquark component", "coherent picture", "meson spectroscopy" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. D" }, "note": { "typesetting": "TeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable", "inspire": 689731 } } }