Study of the $e^+e^-$ annihilation into hadrons with the SND detector at the VEPP-2000 collider

Shtol, Dmitry A; Achasov, Mikhail N.; Barnyakov, A.Yu.; Beloborodov, K.I.; Berdyugin, A.V.; Bogdanchikov, A.G.; Botov, A.A.; Dimova, Tatiana V.; Druzhinin, V.P.; Golubev, Vladimir B.; Kardapoltsev, L.V.; Kharlamov, A.G.; Korol, Alexander A.; Koshuba, Sergey V.; Korneev, L.A.; Kovrizhin, D.P.; Kupich, A.S.; Litvinov, R.A.; Martin, K.A.; Melnikova, N.A.; Obrazovsky, A.E.; Pakhtusova, Elena V.; Pugachev, K.V.; Serednyakov, S.I.; Silagadze, Zurab K.; Surin, I.K.; Usov, Yu.V.; Vasiljev, Alexey V.; Zhabin, V.N.; Zhulanov, V.V.

doi:10.22323/1.340.0548

Volume 340 - The 39th International Conference on High Energy Physics (ICHEP2018) - Parallel: Strong Interactions and Hadron Physics

Study of the $e^+e^-$ annihilation into hadrons with the SND detector at the VEPP-2000 collider

D.A. Shtol*, M.N. Achasov, A.Y. Barnyakov, K.I. Beloborodov, A.V. Berdyugin, A.G. Bogdanchikov, A.A. Botov, T.V. Dimova, V.P. Druzhinin, V.B. Golubev, L.V. Kardapoltsev, A.G. Kharlamov, A.A. Korol, S.V. Koshuba, L.A. Korneev, D.P. Kovrizhin, A.S. Kupich, R.A. Litvinov, K.A. Martin, N.A. Melnikova, A.E. Obrazovsky, E.V. Pakhtusova, K.V. Pugachev, S.I. Serednyakov, Z.K. Silagadze, I.K. Surin, Y.V. Usov, A.V. Vasiljev, V.N. Zhabin and V.V. Zhulanovet al. (click to show)

*: corresponding author

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Published on: August 02, 2019

Abstract

Recent results on study of exclusive processes of $e^+e^-$ annihilation into hadrons below 2 GeV obtained at the SND detector are presented. The analysis are based on data collected at the VEPP-2M and VEPP-2000 colliders. In particular, we present the measurements of the $e^+e^-\to\eta\pi^+\pi^-$, $e^+e^-\to\eta K^+K^-$, $e^+e^-\to K_SK_L\pi^0$ cross sections, and the preliminary results on study of the $e^+e^-\to\pi^+\pi^-$, $e^+e^-\to n\bar{n}$, $e^+e^-\to\pi^0\gamma$, and the upper limit for $\eta\to e^+e^-$ decay branching fraction

DOI: https://doi.org/10.22323/1.340.0548

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