1302.0053 (CMD-3 Collaboration et al.)

Study of the process $e^+e^-\to 3(π^+π^-)$ in the c.m.energy range
1.5--2.0 gev with the cmd-3 detector    [PDF]

CMD-3 Collaboration, :, R. R. Akhmetshin, A. V. Anisenkov, S. A. Anokhin, V. M. Aulchenko, V. S. Banzarov, L. M. Barkov, N. S. Bashtovoy, D. E. Berkaev, A. E. Bondar, A. V. Bragin, S. I. Eidelman, D. A. Epifanov, L. B. Epshteyn, G. V. Fedotovich, S. E. Gayazov, A. A. Grebenuk, D. N. Grigoriev, E. N. Gromov, F. V. Ignatov, S. V. Karpov, V. F. Kazanin, B. I. Khazin, I. A. Koop, A. N. Kozyrev, P. P. Krokovny, A. E. Kuzmenko, A. S. Kuzmin, I. B. Logashenko, A. P. Lysenko, P. A. Lukin, K. Yu. Mikhailov, Yu. N. Pestov, E. A. Perevedentsev, S. A. Pirogov, S. G. Pivovarov, A. S. Popov, Yu. S. Popov, S. I. Redin, Yu. A. Rogovsky, A. L. Romanov, A. A. Ruban, N. M. Ryskulov, A. E. Ryzhenenkov, V. E. Shebalin, D. N. Shemyakin, B. A. Shwartz, D. B. Shwartz, A. L. Sibidanov, P. Yu. Shatunov, Yu. M. Shatunov, I. G. Snopkov, E. P. Solodov, V. M. Titov, A. A. Talyshev, A. I. Vorobiov, Yu. V. Yudin, A. S. Zaytsev

The cross section of the process $e^+e^- \to 3(\pi^+\pi^-)$ has been measured using 22 pb$^{-1}$ of integrated luminosity collected with the CMD-3 detector at the VEPP-2000 $e^+e^-$ collider in the c.m. energy range 1.5 -- 2.0 GeV. The measured cross section exhibits a sharp drop near the $p\bar p$ threshold. A first study of dynamics of six-pion production has been performed.

View original: http://arxiv.org/abs/1302.0053