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arXiv 1005.0337hep-phnucl-th
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八重态和十重态重子的轴荷

Axial charges of octet and decuplet baryons

Ki-Seok Choi, W. Plessas, R. F. Wagenbrunn

摘要:

本文用相对论组分夸克模型研究了重子基态和共振态的轴电荷。特别地,八重态和十重态$N$,$Σ$,$Ξ$,$Δ$,$Σ^*$和$Ξ^*$重子的轴向电荷被考虑。的理论预测相比,现有的实验数据和其他方法的结果,特别是从晶格量子色动力学和手性微扰理论。讨论了轴向电荷与$π$修饰和自发手性对称破缺的相关性。

英文摘要:

We present a study of axial charges of baryon ground and resonant states with relativistic constituent quark models. In particular, the axial charges of octet and decuplet $N$, $Σ$, $Ξ$, $Δ$, $Σ^*$, and $Ξ^*$ baryons are considered. The theoretical predictions are compared to existing experimental data and results from other approaches, notably from lattice quantum chromodynamics and chiral perturbation theory. The relevance of axial charges with regard to $π$-dressing and spontaneous chiral-symmetry breaking is discussed.

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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