Study of the process $e^+e^- \to \omega\pi^0 \to \pi^+\pi^-\pi^0\pi^0$ in the energy range $1.05-2.00$ GeV with SND

TL;DR

This study measures the cross section of the process $e^+e^- o \omega\pi^0$ in the 1.05-2.00 GeV energy range using the SND detector, providing more accurate data than previous measurements.

Contribution

It provides new, more precise measurements of the $e^+e^- o \omega\\pi^0$ cross section in the 1.05-2.00 GeV range, improving accuracy over prior results.

Findings

Cross section varies from 0.7 to 18 nb.

Statistical uncertainty ranges from 2% to 23%.

Systematic uncertainty ranges from 3.0% to 14.2%.

Abstract

The process $e^+e^- \to \omega\pi^0 \to \pi^+\pi^-\pi^0\pi^0$ is studied in the center-of-mass energy region $1.05-2.00$ GeV using data with an integral luminosity of about 35 pb$^{-1}$ collected with the SND detector at the VEPP-2000 $e^+e^-$ collider. In the energy range under study, the value of the measured Born cross section varies from 0.7 to 18 nb. The statistical uncertainty of the cross section is $2-23$%, while the systematic uncertainty is in the range of $3.0-14.2$%. The results are consistent with previous measurements but have better accuracy.