{"paper":{"title":"Measurement of $\\phi$(1020) meson leptonic width with CMD-2 detector at VEPP-2M Collider","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A.A.Grebenuk, A.A.Ruban, A.E.Bondar, A.L.Sibidanov, A.P.Lysenko, A.S.Kuzmin, A.S.Popov, A.V.Bragin, B.A.Shwartz, B.I.Khazin, D.A.Epifanov, D.N.Grigoriev, E.A.Perevedentsev, E.P.Solodov, F.V.Ignatov, G.V.Fedotovich, I.A.Koop, I.B.Logashenko, I.G.Snopkov, K.Yu.Mikhailov, L.M.Barkov, N.I.Gabyshev, N.M.Ryskulov, N.S.Bashtovoy, P.A.Lukin, P.P.Krokovny, R.R.Akhmetshin, S.E.Baru, S.I.Eidelman, S.I.Redin, S.V.Karpov, V.F.Kazanin, V.M.Aulchenko, V.Sh.Banzarov, V.S.Okhapkin, Yu.M.Shatunov, Yu.V.Yudin","submitted_at":"2010-10-23T13:34:55Z","abstract_excerpt":"The $\\phi$(1020) meson leptonic width has been determined from the combined analysis of 4 major decay modes of the resonance ($\\phi\\to K^+ K^-,K^0_LK^0_S,\\pi^+\\pi^-\\pi^0,\\eta\\gamma$) studied with the CMD-2 detector at the VEPP-2M $e^+e^-$ collider. The following value has been obtained: $\\Gamma(\\phi\\to e^+e^-) = 1.235\\pm 0.006\\pm 0.022$ keV.\n  The $\\phi(1020)$ meson parameters in four main decay channels have been also recalculated: $B(\\phi\\to K^+K^-) = 0.493\\pm 0.003\\pm 0.007$, $B(\\phi\\to K_LK_S) = 0.336\\pm 0.002\\pm 0.006$, $B(\\phi\\to\\pi^+\\pi^-\\pi^0) = 0.155\\pm 0.002\\pm 0.005$, $B(\\phi\\to\\eta"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.4878","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}