Analysis of the Y(4274) with QCD sum rules

TL;DR

This paper uses QCD sum rules to analyze whether the Y(4274) can be a D_s D_{s0}(2317) molecular state, concluding it is unlikely to be such a molecule.

Contribution

It provides a detailed QCD sum rule analysis of the Y(4274), offering new insights into its possible molecular structure.

Findings

Disfavors the Y(4274) as a D_s D_{s0}(2317) molecular state

Uses molecule-type interpolating current in QCD sum rules

Provides numerical mass estimates for the proposed molecular state

Abstract

In this article, we assume that there exists a pseudoscalar $D_s{\bar D}_{s0}(2317)$ molecular state and study its mass with the molecule-type interpolating current in details using the QCD sum rules. The numerical result disfavors identifying the charmonium-like state Y(4274) as the $D_s{\bar D}_{s0}(2317)$ molecule.