Physics Letters B (Oct 2017)

Study of the process e+e−→π+π−π0η in the c.m. energy range 1394–2005 MeV with the CMD-3 detector

  • R.R. Akhmetshin,
  • A.N. Amirkhanov,
  • A.V. Anisenkov,
  • V.M. Aulchenko,
  • V.Sh. 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,
  • V.F. Kazanin,
  • I.A. Koop,
  • A.N. Kirpotin,
  • A.A. Korobov,
  • A.N. Kozyrev,
  • E.A. Kozyrev,
  • P.P. Krokovny,
  • A.E. Kuzmenko,
  • A.S. Kuzmin,
  • I.B. Logashenko,
  • P.A. Lukin,
  • K.Yu. Mikhailov,
  • V.S. Okhapkin,
  • A.V. Otboev,
  • Yu.N. Pestov,
  • A.S. Popov,
  • G.P. Razuvaev,
  • Yu.A. Rogovsky,
  • A.A. Ruban,
  • N.M. Ryskulov,
  • A.E. Ryzhenenkov,
  • A.I. Senchenko,
  • Yu.M. Shatunov,
  • P.Yu. Shatunov,
  • V.E. Shebalin,
  • D.N. Shemyakin,
  • B.A. Shwartz,
  • D.B. Shwartz,
  • A.L. Sibidanov,
  • E.P. Solodov,
  • V.M. Titov,
  • A.A. Talyshev,
  • A.I. Vorobiov,
  • I.M. Zemlyansky,
  • Yu.V. Yudin

Journal volume & issue
Vol. 773
pp. 150 – 158

Abstract

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The cross section of the process e+e−→π+π−π0η has been measured using a data sample of 21.8 pb−1 collected with the CMD-3 detector at the VEPP-2000 e+e− collider. 2769±95 signal events have been selected in the center-of-mass energy range 1394–2005 MeV. The production dynamics is dominated by the ω(782)η and ϕ(1020)η intermediate states in the lower energy range, and by the a0(980)ρ(770) intermediate state at higher energies.