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Achasov, M. N.; Barnyakov, A. Yu; Baykov, A. A.; Beloborodov, K. I.; Berdyugin, A. V.; Bogdanchikov, A. G.; Botov, A. A.; Golubev, V. B.; Dimova, T. V.; Druzhinin, V. P.; Zhabin, V. N.; Zhulanov, V. V.; Kardapoltsev, L. V.; Kovrizhin, D. P.; Korol, A. A.; Kupich, A. S.; Martin, K. A.; Melnikova, N. A.; Muchnoi, N. Yu; Obrazovsky, A. E.; Pakhtusova, E. V.; Pugachev, K. V.; Savchenko, Ya. S.; Serednyakov, S. I.; Silagadze, Z. K.; Surin, I. K.; Usov, Yu. V.; Kharlamov, A. G.; Shtol, D. A.
Physics of atomic nuclei, 2021/1, Letnik: 84, Številka: 1Journal Article
The process was studied in the energy range between 1 and 2 GeV to the best precision in the world. The data used correspond to an integrated luminosity of accumulated with the SND detector at the VEPP-2000 collider. The statistical accuracy of the measured cross section is 2 to 22 , whereas the systematic uncertainty is 2.6 to 14 . The present results agree with the results of earlier measurements but have a better precision.
