1. Precise measurement of And between 1.84 and 3.72 GeV at the KEDR detector
- Author
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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