Analysis of the scalar, axialvector, vector, tensor doubly charmed tetraquark states with QCD sum rules

TL;DR

This paper systematically studies doubly charmed tetraquark states using QCD sum rules, constructing specific currents and predicting their masses for future experimental verification.

Contribution

It introduces a new approach with axialvector diquark currents and performs a comprehensive operator product expansion up to dimension 10.

Findings

Predicted masses of doubly charmed tetraquark states.

Guidance for experimental searches via strong decays.

Framework for future theoretical and experimental studies.

Abstract

In this article, we construct the axialvector-diquark-axialvector-antidiquark type currents to interpolate the scalar, axialvector, vector, tensor doubly charmed tetraquark states, and study them with QCD sum rules systematically by carrying out the operator product expansion up to the vacuum condensates of dimension 10 in a consistent way, the predicted masses can be confronted to the experimental data in the future. We can search for those doubly charmed tetraquark states in the Okubo-Zweig-Iizuka super-allowed strong decays to the charmed meson pairs.