Fully strange tetraquark states via QCD sum rules

TL;DR

This study uses QCD sum rules to predict the mass spectrum of fully strange tetraquark states, suggesting potential experimental candidates like the X(2300) and guiding future searches.

Contribution

It provides the first systematic QCD sum rule analysis of fully strange tetraquark states with specific quantum numbers and compares predictions with experimental data.

Findings

Predicted masses range from 2.07 to 3.12 GeV.

Identified the X(2300) as a potential fully strange tetraquark.

Suggested decay modes for experimental detection.

Abstract

In this paper, we have systematically explored the mass spectrum of fully strange tetraquark candidates within the framework of QCD sum rules, focusing on states with quantum numbers $J^{PC}=0^{++}$, $0^{-+}$, $0^{--}$, $1^{--}$, $1^{+-}$, and $1^{++}$. The analysis reveals the existence of fully strange tetraquark states with masses ranging from approximately $2.07$ to $3.12$ GeV. These predictions are confronted with existing experimental observations of potential fully strange tetraquark resonances, notably the $X(2300)$ recently reported by the BESIII Collaboration, which may be interpreted as a fully strange tetraquark state. Furthermore, the possible decay modes of these fully strange tetraquark states are analyzed, providing guidance for their identification in current and future high energy experiments such as BESIII, Belle II, and LHCb.