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2 results on '"S.A. Glukhov"'

1. Measurement of Γee×Bμμ for ψ(2S) meson

Author

V.V. Anashin, O.V. Anchugov, V.M. Aulchenko, E.M. Baldin, G.N. Baranov, A.K. Barladyan, A.Yu. Barnyakov, M.Yu. Barnyakov, S.E. Baru, I.Yu. Basok, A.M. Batrakov, E.A. Bekhtenev, A.E. Blinov, V.E. Blinov, A.V. Bobrov, V.S. Bobrovnikov, A.V. Bogomyagkov, A.E. Bondar, A.R. Buzykaev, P.B. Cheblakov, V.L. Dorohov, S.I. Eidelman, D.N. Grigoriev, S.A. Glukhov, S.E. Karnaev, G.V. Karpov, S.V. Karpov, K.Yu. Karukina, D.P. Kashtankin, T.A. Kharlamova, V.A. Kiselev, V.V. Kolmogorov, S.A. Kononov, K.Yu. Kotov, A.A. Krasnov, E.A. Kravchenko, V.N. Kudryavtsev, V.F. Kulikov, G.Ya. Kurkin, I.A. Kuyanov, E.A. Kuper, E.B. Levichev, D.A. Maksimov, V.M. Malyshev, A.L. Maslennikov, O.I. Meshkov, S.I. Mishnev, I.A. Morozov, I.I. Morozov, N.Yu. Muchnoi, S.A. Nikitin, I.B. Nikolaev, I.N. Okunev, A.P. Onuchin, S.B. Oreshkin, A.A. Osipov, I.V. Ovtin, S.V. Peleganchuk, S.G. Pivovarov, P.A. Piminov, V.V. Petrov, V.G. Prisekin, O.L. Rezanova, A.A. Ruban, G.A. Savinov, A.G. Shamov, D.N. Shatilov, D.A. Shvedov, B.A. Shwartz, E.A. Simonov, S.V. Sinyatkin, A.N. Skrinsky, A.V. Sokolov, D.P. Sukhanov, A.M. Sukharev, E.V. Starostina, A.A. Talyshev, V.A. Tayursky, V.I. Telnov, Yu.A. Tikhonov, K.Yu. Todyshev, A.G. Tribendis, G.M. Tumaikin, Yu.V. Usov, A.I. Vorobiov, V.N. Zhilich, A.A. Zhukov, V.V. Zhulanov, and A.N. Zhuravlev

Subjects
High Energy Physics::Phenomenology, High Energy Physics::Experiment, lcsh:Physics, lcsh:QC1-999
Abstract

The product of the electronic width of the ψ(2S) meson and the branching fraction of its decay to the muon pair was measured in the e+e−→ψ(2S)→μ+μ− process using nine data sets corresponding to an integrated luminosity of about 6.5 pb−1 collected with the KEDR detector at the VEPP-4M electron–positron collider:Γee×Bμμ=19.3±0.3±0.5eV. Adding the previous KEDR results on hadronic and leptonic channels, the values of the ψ(2S) electronic width were obtained under two assumptions: either with the assumption of lepton universalityΓee=2.279±0.015±0.042keV or without it, summing up hadronic and three independent leptonic channelsΓee=2.282±0.015±0.042keV. Keywords: ψ(2S) meson, Leptonic width, Branching fraction

Published
2018

2. Precise measurement of And between 1.84 and 3.72 GeV at the KEDR detector

Author

D.P. Kashtankin, S.I. Eidelman, A.K. Barladyan, I.Yu. Basok, V.V. Anashin, Evgeny Levichev, V.M. Aulchenko, Tatyana Kharlamova, K.Yu. Kotov, A.M. Batrakov, V.A. Tayursky, D.N. Grigoriev, A.E. Bondar, Evgenii Baldin, Alexey Buzykaev, K. Yu. Todyshev, G.A. Savinov, A.N. Skrinsky, V. Kudryavtsev, E. A. Kravchenko, P.V. Kasyanenko, E. A. Simonov, D.A. Shvedov, V.L. Dorohov, S.A. Nikitin, I. A. Kuyanov, V. A. Kiselev, Yu. A. Tikhonov, Sergey Peleganchuk, V.F. Kulikov, M.Yu. Barnyakov, Alexey Maslennikov, Sergey Sinyatkin, V.G. Prisekin, O.V. Anchugov, V. V. Kaminskiy, A.N. Zhuravlev, V. S. Bobrovnikov, Pavel Piminov, A.G. Tribendis, S.E. Baru, A.A. Zhukov, E.A. Bekhtenev, Olga Rezanova, Vladimir Blinov, B.A. Shwartz, I.A. Morozov, S.A. Kononov, A. P. Onuchin, S.B. Oreshkin, G.N. Baranov, E.V. Starostina, Yu. V. Usov, A.Yu. Barnyakov, V.V. Kolmogorov, A.A. Krasnov, I.N. Okunev, Vladimir Zhulanov, G.Ya. Kurkin, V. V. Petrov, S.G. Pivovarov, Alexey Talyshev, A.G. Shamov, A.M. Sukharev, I. B. Nikolaev, G.V. Karpov, A.V. Bogomyagkov, A.I. Vorobiov, A. Bobrov, I.I. Morozov, K.Yu. Karukina, Dmitry Shatilov, Andrey Sokolov, Valery I. Telnov, S.V. Karpov, D.A. Maksimov, Sergey Karnaev, S.A. Glukhov, V. M. Malyshev, P.B. Cheblakov, A.A. Ruban, D.P. Sukhanov, S. I. Mishnev, G.M. Tumaikin, A. E. Blinov, A.A. Osipov, V.N. Zhilich, Oleg Meshkov, and I.V. Ovtin

Subjects
Systematic error, Physics, Nuclear and High Energy Physics, Range (particle radiation), 010308 nuclear & particles physics, Detector, Monte Carlo method, FOS: Physical sciences, 01 natural sciences, R-value (insulation), lcsh:QC1-999, law.invention, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), law, 0103 physical sciences, 010306 general physics, Collider, lcsh:Physics
Abstract

The present work continues a series of the KEDR measurements of the $R$ value that started in 2010 at the VEPP-4M $e^+e^-$ collider. By combining new data with our previous results in this energy range we measured the values of $R_{\text{uds}}$ and $R$ at nine center-of-mass energies between 3.08 and 3.72 GeV. The total accuracy is about or better than $2.6\%$ at most of energy points with a systematic uncertainty of about $1.9\%$. Together with the previous precise $R$ measurement at KEDR in the energy range 1.84-3.05 GeV, it constitutes the most detailed high-precision $R$ measurement near the charmonium production threshold., arXiv admin note: text overlap with arXiv:1610.02827 and substantial text overlap with arXiv:1510.02667

Published
2018

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