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arXiv 2004.10736hep-ph
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再论张量$J^{PC} = 2^{--}$介子谱

Revisiting the tensor $J^{PC} = 2^{--}$ meson spectrum

L. M. Abreu, F. M. da Costa Júnior, A. G. Favero

摘要:

本文利用QCD的库仑规范哈密顿方法,讨论了张量$2^{-(-)}$介子谱的性质,其中相互作用由改进的束缚势和横超精细相互作用给出,其核为Yukawa型势.我们的目标是在统一的框架下,通过整个夸克质量范围来研究$2^{-(-)}$介子的基本特征。我们集中我们的调查预期,但尚未观察到的基态的无味轻介子和charmonium和bottomonium状态的预测。数值结果与现有文献进行了比较。

英文摘要:

This work is devoted to the discussion and characterization of the tensor $2^{-(-)}$ meson spectrum, by making use of the Coulomb gauge Hamiltonian approach to QCD, with the interactions being given by an improved confining potential and a transverse hyperfine interaction, whose kernel is a Yukawa-type potential. Our aim is to study the basic features of $2^{-(-)}$ mesons within an unified framework through the whole range of quark masses. We concentrate our investigation on predictions of expected but yet-unobserved ground states of unflavored light mesons and on charmonium and bottomonium states. The numerical results are compared with existing literature.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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