Chiral effective Lagrangian for excited heavy-light mesons from QCD

• 作者: Qing-Sen Chen Hui-Feng Fu Yong-Liang Ma Qing Wang
• 来源期刊: 理论物理通讯（英文版）
• 年，卷（期）: 2021,（6）
• 所属期刊栏目: PARTICLE PHYSICS AND QUANTUM FIELD THEORY
• 页码范围: 94-101
• 页数: 8页
• 语种: 英文

摘要

We derive the chiral effective Lagrangian for excited heavy-light mesons from QCD under proper approximations.We focus on the chiral partners with jlP = 3/2+and jlP = 3/2-which amounts to(1+,2+)and(1-,2-)states respectively.The low energy constants including the masses of the chiral partners are calculated.The calculated spectrum for the excited mesons are found roughly consistent with experimental data.In addition,our results indicate that quantum numbers of BJ(5970)can be identified with 1-or 2-.