Вы находитесь на старом сайте НГУ. Перейти на новый сайт

ISSN - 10637788, EISSN - 1562692X, Physics of Atomic Nuclei, 2015, vol. 78, 5, p. 591-602

Preliminary results of measurements of hadronic cross sections with the CMD-3 detector at the VEPP-2000 electron–positron collider

Fedotovich G. V., Anisenkov A. V., Aulchenko V. M., Akhmetshin R. R., Banzarov V. S., Bashtovoy N. S., Berkaev D. E., Bragin A. V., Vorobiov A. I., Gayazov S. E., Grebenuk A. A., Grigoriev D. N., Gromov E. M., Epifanov D. A., Erofeev A. L., Zharinov Yu M., Ivanov V. L., Ignatov F. V., Kazanin V. F., Karpov S. V., Kirpotin A. N., Kovalenko O. A., Kozyrev A. N., Kozyrev E. A., Koop I. A., Krokovny P. P., Kuzmenko A. E., Kuzmin A. S., Logashenko I. B., Lukin P. A., Lysenko A. P., Mikhailov K. Yu, Okhapkin V. S., Perevedentsev E. A., Pestov Yu N., Popov A. S., Razuvaev G. P., Rogovsky Yu A., Romanov A. L., Ruban A. A., Ryzhenenkov A. E., Ryskulov N. M., Sibidanov A. L., Solodov E. P., Talyshev A. A., Titov V. M., Khazin B. I., Shatunov P. Yu, Shatunov Yu M., Shwartz B. A., Shwartz D. B., Shebalin V. E., Shemyakin D. N., Eidelman S. I., Epshteyn L. B., Yudin Yu V.

© 2015, Pleiades Publishing, Ltd. Experiments with the CMD-3 detector at the VEPP-2000 electron–positron collider in the range of center of mass collision energies from 0.32 to 2 GeV have been performed since December 2010. The amount of accumulated data corresponds to an integrated luminosity of about 60 pb<sup>-1</sup>. The resultsof a preliminary analysis are presented for the following annihilation channels: e<sup>+</sup>e<sup>-</sup> → 3(π<sup>+</sup>π<sup>-</sup>), 2(π<sup>+</sup>π<sup>-</sup>π<sup>0</sup>), K<sup>+</sup>K<sup>-</sup>π<sup>+</sup>π<sup>-</sup>, K<sup>+</sup>K<sup>-</sup>, $$p\bar p$$, and π<sup>+</sup>π<sup>-</sup>. Since processes of electron–positron annihilation that involve the production of multihadron states proceed through several intermediate states, their analysis is necessary for the correct description of the emission-angle and invariant-mass distributions of product particles.