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ISSN - 03702693, Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2016, vol. 759, p. 634-640

Study of the process e<sup>+</sup>e<sup>−</sup>→pp¯ in the c.m. energy range from threshold to 2 GeV with the CMD-3 detector

Akhmetshin R. R., Amirkhanov A. N., Anisenkov A. V., Aulchenko V. M., Banzarov V. Sh, Bashtovoy N. S., Berkaev D. E., Bondar A. E., Bragin A. V., Eidelman S. I., Epifanov D. A., Epshteyn L. B., Erofeev A. L., Fedotovich G. V., Gayazov S. E., Grebenuk A. A., Gribanov S. S., Grigoriev D. N., Gromov E. M., Ignatov F. V., Ivanov V. L., Karpov S. V., Kasaev A. S., Kazanin V. F., Khazin B. I., Kirpotin A. N., Koop I. A., Kovalenko O. A., Kozyrev A. N., Kozyrev E. A., Krokovny P. P., Kuzmenko A. E., Kuzmin A. S., Logashenko I. B., Lukin P. A., Mikhailov K. Yu, Okhapkin V. S., Otboev A. V., Pestov Yu N., Pivovarov S. G., Popov A. S., Razuvaev G. P., 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., Solodov E. P., Titov V. M., Talyshev A. A., Vorobiov A. I., Yudin Yu V., Zharinov Yu M.

© 2016 The AuthorsUsing a data sample of 7.7 pb−1 collected with the CMD-3 detector at the VEPP-2000 e+e− collider we select about 2900 events of the process e+e−→pp¯ and measure its cross section at 12 energy points with about 6% systematic uncertainty. From the angular distribution of produced nucleons we obtain the ratio GE/GM.