Study of the \(\boldsymbol{e}^{\boldsymbol{+}}\boldsymbol{e}^{\boldsymbol{-}}\) Annihilation into Hadrons with the SND Detector at the VEPP-2000 Collider

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发表日期：

2024年12月1日

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A. A. Botov,
M. N. Achasov,
A. Yu. Barnyakov,
K. I. Beloborodov,
A. V. Berdyugin,
A. G. Bogdanchikov,
T. V. Dimova,
V. P. Druzhinin,
L. V. Kardapoltsev,
A. G. Kharlamov,
A. A. Korol,
D. P. Kovrizhin,
A. P. Krukov,
A. S. Kupich,
N. A. Melnikova,
A. E. Obrazovsky,
E. V. Pakhtusova,
K. V. Pugachev,
S. I. Serednyakov,
D. A. Shtol,
Z. K. Silagadze,
I. K. Surin,
Yu. V. Usov,
V. N. Zabin

摘要

Abstract

Recent results on a study of exclusive processes of \(e^{+}e^{-}\) annihilation into hadrons below 2 GeV obtained at the SND detector are presented. The analyses are based on data collected at the VEPP-2000 collider. In particular, we present the measurements of the \(e^{+}e^{-}\to\eta\gamma\) , \(e^{+}e^{-}\to\pi^{+}\pi^{-}\pi^{0}\) , \(e^{+}e^{-}\to\omega\pi^{0}\) cross sections and the preliminary results on study of the \(e^{+}e^{-}\to\eta\pi^{+}\pi^{-}2\pi^{0}\) process. The results obtained are compared with previous measurements.