{ "id": "hep-ex/0310023", "version": "v1", "published": "2003-10-13T07:04:29.000Z", "updated": "2003-10-13T07:04:29.000Z", "title": "Improved measurement of the branching ratio of J/psi-->K_S K_L", "authors": [ "J. Z. Bai", "for the BES Collaboration" ], "comment": "10 pages, 14 figures, 2 tables, submitted to Phys. Rev. D", "journal": "Phys.Rev.D69:012003,2004", "doi": "10.1103/PhysRevD.69.012003", "categories": [ "hep-ex" ], "abstract": "The branching ratio of J/psi-->K_S K_L is measured with improved precision to be B(J/psi-->K_S K_L) = (1.82\\pm 0.04\\pm 0.13)\\times 10^{-4}. using J/psi data collected with the Beijing Spectrometer (BESII) at the Beijing Electron-Positron Collider. This result is used to test the perturbative QCD ``12%'' rule between psi(2S) and J/psi decays and to investigate the relative phase between the three-gluon and one-photon annihilation amplitudes in J/psi decays.", "revisions": [ { "version": "v1", "updated": "2003-10-13T07:04:29.000Z" } ], "analyses": { "subjects": [ "13.25.Gv", "14.40.Gx", "12.38.Qk" ], "keywords": [ "branching ratio", "measurement", "j/psi decays", "one-photon annihilation amplitudes", "beijing electron-positron collider" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. D" }, "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable", "inspire": 630406 } } }