Tetraquark molecular states in the $D_s\bar{D}_{s1}$ and $D_s^*\bar{D}_{s0}^*$ mass spectrum

TL;DR

This paper uses QCD sum rules to predict the existence of specific tetraquark molecular states involving $D_s$ mesons, guiding future experimental searches at BESIII and Belle II.

Contribution

The study constructs novel four-quark currents and applies QCD sum rules to explore tetraquark molecular states with specific quantum numbers, providing theoretical predictions for experimental verification.

Findings

Predicted masses of $D_sar{D}_{s1}$ and $D_s^*ar{D}_{s0}^*$ states.

Suggested these states could be observed at BESIII and Belle II.

Provided a theoretical framework for identifying tetraquark molecular states.

Abstract

In the present work, we construct the color-singlet-color-singlet type four-quark currents to investigate the $D_s\bar{D}_{s1}$ and $D_s^*\bar{D}_{s0}^*$ tetraquark molecular states with the $J^{PC}=1^{--}$ and $1^{-+}$ via the QCD sum rules, and obtain satisfactory results. We can search for the $D_s\bar{D}_{s1}$ and $D_s^*\bar{D}_{s0}^*$ tetraquark molecular states with the $J^{PC}=1^{--}$ and $1^{-+}$ at the BESIII and Belle II in the future.