Status of Experiments and Recent Results from CMD-2 Detector at Vepp-2M

TL;DR

This paper reports on the CMD-2 detector's recent experimental results, including cross sections, meson parameters, and decay modes, based on collected data at Vepp-2M in the energy range of 0.37 to 1.39 GeV.

Contribution

It provides new measurements of meson parameters and decay modes, enhancing understanding of hadron production in electron-positron annihilation.

Findings

Measured cross sections for e+e- annihilation into hadrons and leptons.

Determined parameters of the ρ and ω mesons.

Observed major and rare decay modes of the φ meson.

Abstract

The Cryogenic Magnetic Detector (CMD-2) is shortly described. Preliminary results for the cross sections of $e^+$ $e^-$ annihilation into hadrons and leptons are presented in the c.m. energy range from 0.37 to 1.39 GeV. The total integrated luminosity of about 26 ${pb}^{-1}$ has been collected. The new results for the $\rho$ and $\omega$ meson parameters are reported. The major decay modes of the $\phi$ meson as well as its rare decays have been observed.