Study of the process e(+)e(-) -> 3(pi(+)pi(-)) in the c.m. energy range 1.5-2.0 GeV with the CMD-3 detector

作者：Akhmetshin R R; Anisenkov A V; Anokhin S A; Aulchenko V M; Banzarov V S; Barkov L M; Bashtovoy N S; Berkaev D E; Bondar A E; Bragin A V; Eidelman S I; Epifanov D A; Epshteyn L B; Fedotovich G V; Gayazov S E; Grebenuk A A; Grigoriev D N; Gromov E N; Ignatov F V; Karpov S V; Kazanin V F; Khazin B I; Koop I A; Kozyrev A N; Krokovny P P; Kuzmenko A E; Kuzmin A S; Logashenko I B; Lysenko A P; Lukin P A

来源：Physics Letters B, 2013, 723(1-3): 82-89.

DOI：10.1016/j.physletb.2013.04.065

The cross section of the process e(+)e(-) -> 3(pi(+)pi(-)) has been measured using a data sample of 22 pb(-1) collected with the CMD-3 detector at the VEPP-2000 e(+)e(-) collider. 7956 signal events are selected in the center-of-mass energy range 1.5-2.0 GeV. The measured cross section exhibits a sharp drop near the p (p) over bar threshold. A first study of dynamics of six-pion production has been performed.

• 出版日期2013-6-10