Measurement of the $e^+e^- \to \omega\eta$ cross section below $\sqrt{s}=2$ GeV
M. N. Achasov, A. Yu. 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. S. Kasaev, A. G. Kharlamov, A. N. Kirpotin,, D. P. Kovrizhin, I. A. Koop, A. A. Korol, S. V. Koshuba
TL;DR
This paper reports a precise measurement of the $e^+e^- o \omega\eta$ cross section in the energy range 1.34--2.00 GeV, revealing discrepancies with prior results and enhancing understanding of this process.
Contribution
The study provides the most accurate cross section measurement for $e^+e^- o \omega\eta$ below 2 GeV, highlighting differences from previous experiments.
Findings
Most accurate cross section measurement to date.
Significant discrepancy with previous BABAR data.
Data covers 1.34--2.00 GeV energy range.
Abstract
The cross section for the process is measured in the center-of-mass energy range 1.34--2.00 GeV. The analysis is based on data collected with the SND detector at the VEPP-2000 collider. The measured cross section is the most accurate to date. A significant discrepancy is observed between our data and previous BABAR measurement.
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