Physics Letters B (Apr 2018)
Study of the process e+e−→K+K− in the center-of-mass energy range 1010–1060 MeV with the CMD-3 detector
- E.A. Kozyrev,
- E.P. Solodov,
- R.R. Akhmetshin,
- A.N. Amirkhanov,
- A.V. Anisenkov,
- V.M. Aulchenko,
- V.S. Banzarov,
- N.S. Bashtovoy,
- D.E. Berkaev,
- A.E. Bondar,
- A.V. Bragin,
- S.I. Eidelman,
- D.A. Epifanov,
- L.B. Epshteyn,
- A.L. Erofeev,
- G.V. Fedotovich,
- S.E. Gayazov,
- A.A. Grebenuk,
- S.S. Gribanov,
- D.N. Grigoriev,
- F.V. Ignatov,
- V.L. Ivanov,
- S.V. Karpov,
- A.S. Kasaev,
- V.F. Kazanin,
- A.A. Korobov,
- I.A. Koop,
- A.N. Kozyrev,
- P.P. Krokovny,
- A.E. Kuzmenko,
- A.S. Kuzmin,
- I.B. Logashenko,
- P.A. Lukin,
- A.P. Lysenko,
- K.Yu. Mikhailov,
- V.S. Okhapkin,
- E.A. Perevedentsev,
- Yu.N. Pestov,
- A.S. Popov,
- G.P. Razuvaev,
- Yu.A. Rogovsky,
- A.A. Ruban,
- N.M. Ryskulov,
- A.E. Ryzhenenkov,
- V.E. Shebalin,
- D.N. Shemyakin,
- B.A. Shwartz,
- D.B. Shwartz,
- A.L. Sibidanov,
- Yu.M. Shatunov,
- A.A. Talyshev,
- A.I. Vorobiov,
- Yu.V. Yudin
Affiliations
- E.A. Kozyrev
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia; Corresponding author.
- E.P. Solodov
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- R.R. Akhmetshin
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia
- A.N. Amirkhanov
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- A.V. Anisenkov
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- V.M. Aulchenko
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- V.S. Banzarov
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia
- N.S. Bashtovoy
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia
- D.E. Berkaev
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- A.E. Bondar
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- A.V. Bragin
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia
- S.I. Eidelman
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- D.A. Epifanov
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- L.B. Epshteyn
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia; Novosibirsk State Technical University, Novosibirsk, 630092, Russia
- A.L. Erofeev
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- G.V. Fedotovich
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- S.E. Gayazov
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- A.A. Grebenuk
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- S.S. Gribanov
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- D.N. Grigoriev
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia; Novosibirsk State Technical University, Novosibirsk, 630092, Russia
- F.V. Ignatov
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia
- V.L. Ivanov
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- S.V. Karpov
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia
- A.S. Kasaev
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia
- V.F. Kazanin
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- A.A. Korobov
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- I.A. Koop
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia
- A.N. Kozyrev
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- P.P. Krokovny
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- A.E. Kuzmenko
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- A.S. Kuzmin
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- I.B. Logashenko
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- P.A. Lukin
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- A.P. Lysenko
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia
- K.Yu. Mikhailov
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- V.S. Okhapkin
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia
- E.A. Perevedentsev
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- Yu.N. Pestov
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia
- A.S. Popov
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- G.P. Razuvaev
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- Yu.A. Rogovsky
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- A.A. Ruban
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia
- N.M. Ryskulov
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia
- A.E. Ryzhenenkov
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- V.E. Shebalin
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- D.N. Shemyakin
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- B.A. Shwartz
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- D.B. Shwartz
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- A.L. Sibidanov
- University of Victoria, Victoria, British Columbia, V8W 3P6, Canada
- Yu.M. Shatunov
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia
- A.A. Talyshev
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- A.I. Vorobiov
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia
- Yu.V. Yudin
- Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia; Novosibirsk State University, Novosibirsk, 630090, Russia
- Journal volume & issue
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Vol. 779
pp. 64 – 71
Abstract
The process e+e−→K+K− has been studied using 1.7×106 events from a data sample corresponding to an integrated luminosity of 5.7 pb−1 collected with the CMD-3 detector in the center-of-mass energy range 1010–1060 MeV. The cross section is measured with about 2% systematic uncertainty and is used to calculate the contribution to the anomalous magnetic moment of the muon aμK+K−=(19.33±0.40)×10−10, and to obtain the ϕ(1020) meson parameters. We consider the relationship between the e+e−→K+K− and e+e−→KS0KL0 cross sections and compare it to the theoretical prediction.
