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Delta and Omega masses in a three-quark covariant Faddeev approach

机译:Delta和Omega质量采用三夸克协变Faddeev方法

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摘要

We present the solution of the Poincare-covariant Faddeev equation for theDelta(1232) and Omega(1672) baryons. The covariant structure of thecorresponding baryon amplitudes and their decomposition in terms of internalspin and orbital angular momentum is explicitly derived. The interaction kernelis truncated to a rainbow-ladder dressed-gluon exchange such that chiralsymmetry and its dynamical breaking are correctly implemented. The resultingphysical masses agree reasonably with experiment and their evolution with thepion mass compares favorably with lattice calculations. Evidence for thenon-sphericity of the Delta-resonance is discussed as well.
机译:我们提出了三角函数(1232)和欧米茄(1672)重子的庞加莱协变Faddeev方程的解。明确推导了相应重子振幅的协变结构及其在内部自旋和轨道角动量方面的分解。交互作用内核被截断为彩虹梯形修饰胶子交换,从而正确地实现了手性对称及其动态破坏。产生的物理质量与实验合理吻合,它们随the质量的演化与晶格计算相比具有优势。还讨论了Delta共振的非球形性的证据。

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