Observation of New Hadronic $\psi(2S)$ Decays at CLEO

TL;DR

This paper reports the observation of new hadronic decay modes of the $ ext{psi}(2S)$ particle using data from the CLEO detector, providing detailed branching ratios and limits.

Contribution

It presents the first measurements of several new hadronic decay modes of the $ ext{psi}(2S)$, expanding understanding of its decay channels.

Findings

Identification of new $ ext{psi}(2S)$ hadronic decay modes

Measurement of branching ratios for these modes

Establishment of upper limits for unobserved decays

Abstract

Using 5.46 pb$^{-1}$ of $e^+e^-$ annihilation data collected at the $\psi(2S)$ with the CLEO detector we have observed a variety of new hadronic decay modes of the $\psi(2S)$. A comprehensive set of branching ratios and upper limits is presented.