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arXiv 0812.2966hep-ph
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Faddeev方程:重子性质的观点

Faddeev equations: a view of baryon properties

D. Nicmorus, G. Eichmann, A. Krassnigg, R. Alkofer

摘要:

本文在庞加莱协变Faddeev框架下计算了三夸克核对Delta重子质量的贡献。一个一致的设置为dressed-quark传播,夸克-夸克和夸克-双夸克相互作用,其中所有的成分是解决方案,其各自的戴森-Schwinger或Bethe-Salpeter方程的彩虹梯截断。我们讨论了Delta质量随当前夸克质量的演化,并与以前得到的核子质量进行了比较。

英文摘要:

We present a calculation of the three-quark core contribution to the mass of the Delta-baryon in a Poincare-covariant Faddeev framework. A consistent setup for the dressed-quark propagator, the quark-quark and quark-diquark interactions is used, where all the ingredients are solutions of their respective Dyson-Schwinger or Bethe-Salpeter equations in rainbow-ladder truncation. We discuss the evolution of the Delta mass with the current-quark mass and compare to the previously obtained mass of the nucleon.

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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