Strong decay of the heavy tensor mesons with QCD sum rules

TL;DR

This paper uses QCD sum rules to calculate coupling constants and study the strong decay processes of heavy tensor mesons, providing theoretical predictions for decay widths to compare with future experimental results.

Contribution

It introduces a method to compute hadronic coupling constants for heavy tensor mesons and predicts their decay behaviors using three-point QCD sum rules.

Findings

Calculated coupling constants for heavy tensor mesons.

Predicted decay widths for specific strong decay channels.

Provided theoretical data for future experimental validation.

Abstract

In the article, we calculate the hadronic coupling constants $G_{D_2^*D\pi}$, $G_{D_{s2}^*DK}$, $G_{B_2^*B\pi}$, $G_{B_{s2}^*BK}$ with the three-point QCD sum rules, then study the two body strong decays $D_2^*(2460)\to D\pi$, $D_{s2}^*(2573)\to DK$, $B_2^*(5741)\to B\pi$, $B_{s2}^*(5840)\to BK$, and make predictions to be confronted with the experimental data in the future.