Physics Letters B (Jul 2017)

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

  • V.V. Anashin,
  • V.M. Aulchenko,
  • E.M. Baldin,
  • A.K. Barladyan,
  • A.Yu. Barnyakov,
  • M.Yu. Barnyakov,
  • S.E. Baru,
  • I.Yu. Basok,
  • A.M. Batrakov,
  • A.E. Blinov,
  • V.E. Blinov,
  • A.V. Bobrov,
  • V.S. Bobrovnikov,
  • A.V. Bogomyagkov,
  • A.E. Bondar,
  • A.R. Buzykaev,
  • S.I. Eidelman,
  • D.N. Grigoriev,
  • Yu.M. Glukhovchenko,
  • S.E. Karnaev,
  • G.V. Karpov,
  • S.V. Karpov,
  • P.V. Kasyanenko,
  • T.A. Kharlamova,
  • V.A. Kiselev,
  • V.V. Kolmogorov,
  • S.A. Kononov,
  • K.Yu. Kotov,
  • 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.I. Morozov,
  • N.Yu. Muchnoi,
  • V.V. Neufeld,
  • 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,
  • V.K. Sandyrev,
  • G.A. Savinov,
  • A.G. Shamov,
  • D.N. Shatilov,
  • B.A. Shwartz,
  • E.A. Simonov,
  • S.V. Sinyatkin,
  • A.N. Skrinsky,
  • A.V. Sokolov,
  • A.M. Sukharev,
  • E.V. Starostina,
  • A.A. Talyshev,
  • V.A. Tayursky,
  • V.I. Telnov,
  • Yu.A. Tikhonov,
  • K.Yu. Todyshev,
  • G.M. Tumaikin,
  • Yu.V. Usov,
  • A.I. Vorobiov,
  • V.N. Zhilich,
  • V.V. Zhulanov,
  • A.N. Zhuravlev

DOI
https://doi.org/10.1016/j.physletb.2017.04.073
Journal volume & issue
Vol. 770, no. C
pp. 174 – 181

Abstract

Read online

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%.