Experimental Study of the Reaction $e^+e^-\to K_SK_L$ in the Energy Range $\sqrt{s}=1.04 \div 1.38$ GeV

TL;DR

This study measures the cross section of the process $e^+e^- o K_S K_L$ across 1.04 to 1.38 GeV, revealing deviations from simple vector meson dominance models at higher energies.

Contribution

It provides new experimental data on the $e^+e^- o K_S K_L$ cross section in the specified energy range, highlighting discrepancies with existing theoretical models.

Findings

Cross section exceeds model predictions above 1.2 GeV.

Results align with previous measurements.

Data suggests additional resonant contributions.

Abstract

We present a measurement of the $e^+e^-\to K_SK_L$ cross section in the energy range $\sqrt{s}=1.04 \div 1.38$ GeV. For the energy $\sqrt{s}\geq 1.2$ GeV the cross section exceeds vector meson dominance model predictions with only $\rho(770)$, $\omega(783)$, and $\phi(1020)$ mesons taken into account. Measured cross section agrees well with previous measurements.