Measurement of R between 1.84 and 3.05 GeV at the KEDR detector

Measurement of R between 1.84 and 3.05 GeV at the KEDR detector

Using the KEDR detector at the VEPP-4M e+e− collider, we have determined the values of R at thirteen points of the center-of-mass energy between 1.84 and 3.05 GeV. The achieved accuracy is about or better than 3.9% at most of the energy points with a systematic uncertainty less than 2.4%.

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Veröffentlicht in:Physics letters. B 2017-07, Vol.770 (C), p.174-181
Hauptverfasser: Anashin, V.V., Aulchenko, V.M., Baldin, E.M., Barladyan, A.K., Barnyakov, A.Yu, Barnyakov, M.Yu, Baru, S.E., Basok, I.Yu, Batrakov, A.M., Blinov, A.E., Blinov, V.E., Bobrov, A.V., Bobrovnikov, V.S., Bogomyagkov, A.V., Bondar, A.E., Buzykaev, A.R., Eidelman, S.I., Grigoriev, D.N., Glukhovchenko, Yu.M., Karnaev, S.E., Karpov, G.V., Karpov, S.V., Kasyanenko, P.V., Kharlamova, T.A., Kiselev, V.A., Kolmogorov, V.V., Kononov, S.A., Kotov, K.Yu, Kravchenko, E.A., Kudryavtsev, V.N., Kulikov, V.F., Kurkin, G.Ya, Kuyanov, I.A., Kuper, E.A., Levichev, E.B., Maksimov, D.A., Malyshev, V.M., Maslennikov, A.L., Meshkov, O.I., Mishnev, S.I., Morozov, I.I., Muchnoi, N.Yu, Neufeld, V.V., Nikitin, S.A., Nikolaev, I.B., Okunev, I.N., Onuchin, A.P., Oreshkin, S.B., Osipov, A.A., Ovtin, I.V., Peleganchuk, S.V., Pivovarov, S.G., Piminov, P.A., Petrov, V.V., Prisekin, V.G., Rezanova, O.L., Ruban, A.A., Sandyrev, V.K., Savinov, G.A., Shamov, A.G., Shatilov, D.N., Shwartz, B.A., Simonov, E.A., Sinyatkin, S.V., Skrinsky, A.N., Sokolov, A.V., Sukharev, A.M., Starostina, E.V., Talyshev, A.A., Tayursky, V.A., Telnov, V.I., Tikhonov, Yu.A., Todyshev, K.Yu, Tumaikin, G.M., Usov, Yu.V., Vorobiov, A.I., Zhilich, V.N., Zhulanov, V.V., Zhuravlev, A.N.
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Sprache:eng
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Zusammenfassung:Using the KEDR detector at the VEPP-4M e+e− collider, we have determined the values of R at thirteen points of the center-of-mass energy between 1.84 and 3.05 GeV. The achieved accuracy is about or better than 3.9% at most of the energy points with a systematic uncertainty less than 2.4%.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2017.04.073