On recent data of branching ratios for psi(2S)-->J/psi pi pi and psi(2S)-->J/psi eta

TL;DR

This paper reviews recent measurements of branching ratios for a(2S) decays to J/a plus two pions or eta, proposing an alternative analysis method to resolve inconsistencies in previous data interpretations.

Contribution

It introduces a new approach to analyze decay data, addressing logical inconsistencies in prior computational methods.

Findings

Revised branching ratio values consistent with data

Resolution of previous logical inconsistencies

Enhanced understanding of a(2S) decay modes

Abstract

Recent data on branching ratios for \psi(2S) decays to J/\psi\pi^+\pi^-, J/\psi\pi^0\pi^0 and J/\psi\eta are reviewed. An alternative treatment of data is proposed to get rid of the logical inconsistency which occurs in original computational procedure.