Study of the process e+e−→K+K−η with the CMD-3 detector at the VEPP-2000 collider

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dc.contributor.authorIvanov, V.L.
dc.contributor.authorFedotovich, G.V.
dc.contributor.authorAkhmetshin, R.R.
dc.contributor.authorAmirkhanov, A.N.
dc.contributor.authorAnisenkov, A.V.
dc.contributor.authorAulchenko, V.M.
dc.contributor.authorBanzarov, V.Sh.
dc.contributor.authorBashtovoy, N.S.
dc.contributor.authorBerkaev, D.E.
dc.contributor.authorBondar, A.E.
dc.contributor.authorBragin, A.V.
dc.contributor.authorEidelman, S.I.
dc.contributor.authorEpifanov, D.A.
dc.contributor.authorEpshteyn, L.B.
dc.contributor.authorErofeev, A.L.
dc.contributor.authorGayazov, S.E.
dc.contributor.authorGrebenuk, A.A.
dc.contributor.authorGribanov, S.S.
dc.contributor.authorGrigoriev, D.N.
dc.contributor.authorIgnatov, F.V.
dc.contributor.authorKarpov, S.V.
dc.contributor.authorKasaev, A.S.
dc.contributor.authorKazanin, V.F.
dc.contributor.authorKoop, I.A.
dc.contributor.authorKorobov, A.A.
dc.contributor.authorKozyrev, A.N.
dc.contributor.authorKozyrev, E.A.
dc.contributor.authorKrokovny, P.P.
dc.contributor.authorKuzmenko, A.E.
dc.contributor.authorKuzmin, A.S.
dc.contributor.authorLogashenko, I.B.
dc.contributor.authorLukin, P.A.
dc.contributor.authorLysenko, A.P.
dc.contributor.authorMikhailov, K.Yu.
dc.contributor.authorOkhapkin, V.S.
dc.contributor.authorPerevedentsev, E.A.
dc.contributor.authorPestov, Yu.N.
dc.contributor.authorPopov, A.S.
dc.contributor.authorRazuvaev, G.P.
dc.contributor.authorRuban, A.A.
dc.contributor.authorRyskulov, N.M.
dc.contributor.authorRyzhenenkov, A.E.
dc.contributor.authorSemenov, A.V.
dc.contributor.authorShatunov, Yu.M.
dc.contributor.authorShebalin, V.E.
dc.contributor.authorShemyakin, D.N.
dc.contributor.authorShwartz, B.A.
dc.contributor.authorShwartz, D.B.
dc.contributor.authorSibidanov, A.L.
dc.contributor.authorSolodov, E.P.
dc.contributor.authorTimoshenko, M.V.
dc.contributor.authorTitov, V.M.
dc.contributor.authorTalyshev, A.A.
dc.contributor.authorTolmachev, S.S.
dc.contributor.authorVorobiov, A.I.
dc.contributor.authorYudin, Yu.V.
dc.date.accessioned2020-01-27T00:04:57Z
dc.date.available2020-01-27T00:04:57Z
dc.date.copyright2019en_US
dc.date.issued2019
dc.description.abstractThe process e+e− K + K −η has been studied in the center-of-mass energy range from 1.59 to 2.007 GeV using the data sample of 59.5 pb−1, collected with the CMD-3 detector at the VEPP-2000 e+e− collider in 2011, 2012 and 2017. The K + K −η final state is found to be dominated by the contribution of the φ(1020)η intermediate state. The cross section of the process e+e− φ(1020)η has been measured with a systematic uncertainty of 5.1% on the base of 3009 67 selected events. The obtained cross section has been used to calculate the contribution to the anomalous magnetic moment of the muon: aφη(E < 1.8 GeV) = (0.321 ± 0.015stat ± 0.016syst) × 10−10, aφη(E < 2.0 GeV) = (0.440 ± 0.015stat ± 0.022syst) × 10−10. From the cross section approximation the φ(1680) meson parameters have been determined with better statistical precision, than in previous studies.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipThe work is partially supported by the Russian Foundation for Basic Research grants 17-52-50064-a, 17-02-00897. Part of this work related to simulation of multihadronic production is sup-ported by the Ministry of Science and Higher Education of the Russian Federation grant 14.W03.31.0026.en_US
dc.identifier.citationIvanov, V.L. … Sibidanov, A.L., Solodov, E.P, Timoshenko, M.V., Titov, V.M., Talyshev, A.A., Tolmachev, S.S., Vorobiov, A.I, Yudin, Yu.V. (2019). Study of the process e+e−→K+K−η with the CMD-3 detector at the VEPP-2000 collider. Physics Letters B, 798, 134946. https://doi.org/10.1016/j.physletb.2019.134946en_US
dc.identifier.urihttps://doi.org/10.1016/j.physletb.2019.134946
dc.identifier.urihttp://hdl.handle.net/1828/11515
dc.language.isoenen_US
dc.publisherPhysics Letters Ben_US
dc.titleStudy of the process e+e−→K+K−η with the CMD-3 detector at the VEPP-2000 collideren_US
dc.typeArticleen_US

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