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ISSN - 03702693, Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2013, vol. 723, p. 82-89

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

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., Mikhailov K. Yu, Pestov Yu N., Perevedentsev E. A., Pirogov S. A., Pivovarov S. G., Popov A. S., Popov Yu S., Redin S. I., Rogovsky Yu A., Romanov A. L., Ruban A. A., Ryskulov N. M., Ryzhenenkov A. E., Shebalin V. E., Shemyakin D. N., Shwartz B. A., Shwartz D. B., Sibidanov A. L., Shatunov P. Yu, Shatunov Yu M., Snopkov I. G., Solodov E. P., Titov V. M., Talyshev A. A., Vorobiov A. I., Yudin Yu V., Zaytsev A. S.

The cross section of the process e+e-→3(π+π-) has been measured using a data sample of 22pb-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 pp- threshold. A first study of dynamics of six-pion production has been performed. © 2013 .