Study of the process e+e → π+ππ0η 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. IvanovS. 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

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22 Citations (Scopus)

Abstract

The cross section of the process e+e→π+ππ0η 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.

Original languageEnglish
Pages (from-to)150-158
Number of pages9
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume773
DOIs
Publication statusPublished - 10 Oct 2017

Keywords

  • CROSS-SECTION
  • VEPP-2000
  • COLLIDER

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