The properties of $\phi(2170)$ and its three-body nature

TL;DR

This paper investigates the decay properties of the $ ext{phi}(2170)$ particle, supporting its interpretation as a molecular state composed of $ ext{phi}$ and $ar{K}K$ components, based on theoretical calculations aligned with experimental data.

Contribution

The study provides a detailed analysis of the decay widths of $ ext{phi}(2170)$ into various two-body final states, supporting its three-body molecular nature.

Findings

Decay widths agree with experimental data

Supports $ ext{phi}(2170)$ as a $ ext{phi}Kar{K}$ molecular state

Reproduces mass, width, and cross section for $e^+ e^- o ext{phi} f_0$

Abstract

We summarize the results we obtained for the partial decay widths of $\phi(2170)$ into two-body final states formed by a $\bar K$ and a Kaonic resonance, like $K(1460)$, $K_1(1270)$, as well as to final states constituted by a $\phi$ and an $\eta/\eta^\prime$ mesons. The results obtained are compared with the values extracted from experimental data on the corresponding branching ratios, which were determined by the BESIII collaboration. A reasonable agreement is found, which together with the previous reproduction of the mass, width, and cross section for the process $e^+ e^-\to \phi f_0$ strongly indicates the molecular nature of $\phi(2170)$ as a $\phi K\bar K$ system.