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arXiv 2105.03063hep-phnucl-th
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用Dyson-Schwinger方程和Bethe-Salpeter方程研究标量介子和轴矢量介子

Scalar Mesons and Axial-vector Mesons Via Dyson-Schwinger Equation and Bethe-Salpeter Equation Approach

Muyang Chen

摘要:

本文在彩虹阶梯近似下,利用Dyson-Schwinger方程和Bethe-Salpeter方程研究了标量介子和轴矢量介子的能谱。本文提出了一个在赝标介子和矢量介子相互作用模型基础上增加排斥项的相互作用模型。结果与实验数据和其他模型的结果一致,表明该相互作用模型对所有重、重轻、轻标量和轴矢量介子都是有效的。

英文摘要:

In this work, I studied the spectrum of scalar mesons and axial-vector mesons via Dyson-Schwinger equation and Bethe-Salpeter equation approach in the rainbow-ladder approximation. An interaction model with a repulsive term added to the one used for the pseudoscalar and vector mesons is proposed. My results are consistent with the experiment data and other model results, which shows that this interaction model is effective for all the heavy, heavy-light, and light scalar and axial-vector mesons.

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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