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

• Main Authors: 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
• Format: Article
• Language: English
• Published: Elsevier 2017-10-01
• Series: Physics Letters B
• Online Access: http://www.sciencedirect.com/science/article/pii/S037026931730641X
• ISSN: 0370-2693

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.