학술논문
Measurement of the $e^+e^- \to \pi^+\pi^-\pi^0\eta$ cross section below $\sqrt{s}=2$ GeV
Document Type
Working Paper
Author
Achasov, M. N.; Barnyakov, A. Yu.; Beloborodov, K. I.; Berdyugin, A. V.; Bogdanchikov, A. G.; Botov, A. A.; Dimova, T. V.; Druzhinin, V. P.; Golubev, V. B.; Kardapoltsev, L. V.; Kharlamov, A. G.; Korol, A. A.; Koshuba, S. V.; Kovrizhin, D. P.; Kupich, A. S.; Litvinov, R. A.; Lysenko, A. P.; Martin, K. A.; Melnikova, N. A.; Muchnoy, N. Yu.; Obrazovsky, A. E.; Pakhtusova, E. V.; Perevedentsev, E. A.; Pugachev, K. V.; Serednyakov, S. I.; Shatunov, P. Yu.; Shatunov, Yu. M.; Shtol, D. A.; Silagadze, Z. K.; Skrinsky, A. N.; Surin, I. K.; Tikhonov, Yu. A.; Vasiljev, A. V.; Zemlyansky, I. M.
Source
Phys. Rev. D 99, 112004 (2019)
Subject
Language
Abstract
The process $e^+e^- \to \pi^+\pi^-\pi^0\eta$ is studied in the center-of-mass energy region below 2 GeV with the SND detector at the VEPP-2000 $e^+e^-$ collider. The four intermediate states contribute to this process: $\omega\eta$, $\phi\eta$, $a_0(980)\rho$, and a structureless $\pi^+\pi^-\pi^0\eta$ state. We measure the total $e^+e^- \to \pi^+\pi^-\pi^0\eta$ cross section and the cross sections for its components: $\omega\eta$, $\phi\eta$, and a sum of $a_0(980)\rho$ and the structureless state. Our results are in agreement with previous measurements and have comparable or better accuracies.
Comment: 17 pages, 11 figures, 3 tables. arXiv admin note: text overlap with arXiv:1607.00371
Comment: 17 pages, 11 figures, 3 tables. arXiv admin note: text overlap with arXiv:1607.00371