Selecting the physical solution via $\eta$-$\eta'$ mixing

TL;DR

This paper introduces a new method based on $ta$-$ta'$ mixing to select the physical solution for the $Y(4230)$ resonance's hadronic properties from experimental data, resolving multiple solution ambiguities.

Contribution

The paper presents a novel approach to determine unique physical solutions for $Y(4230)$ decays using $ta$-$ta'$ mixing analysis, clarifying previous ambiguities.

Findings

Successfully identifies a unique solution for $Y(4230) ta' J/ta'$ decay.

Prefers two solutions for $Y(4230) ta J/ta'$ decay under specific assumptions.

Resolves multiple experimental solutions to reveal the physical decay properties.

Abstract

Based on $\eta$-$\eta'$ mixing analysis, we propose a novel method to extract the physical solutions for the hadronic properties of the $Y(4230)$ resonance from the experimental data. Experimentally, multiple solutions have been reported in the decays of $Y(4230) \to \eta J/\psi$ and $Y(4230) \to \eta' J/\psi$. Utilizing our method, we determine a unique solution for the process $Y(4230) \to \eta' J/\psi$. Likewise, two solutions for the process $Y(4230) \to \eta J/\psi$ are preferred among the originally reported three solutions under the assumption that $Y(4230)$ dose not take an $s\bar{s}$ component.