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arXiv 2103.16175hep-thhep-ph
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谱Dyson-Schwinger方程的鬼谱函数

Ghost spectral function from the spectral Dyson-Schwinger equation

Jan Horak, Joannis Papavassiliou, Jan M. Pawlowski, Nicolas Wink

摘要:

对于给定的输入胶子谱函数,我们通过求解相应的Dyson-Schwinger方程来计算Yang-Mills理论中的鬼谱函数。结果包括胶子传播子输入的标度解和去耦解。由此产生的鬼谱函数显示粒子峰值消失的动量和负散射光谱,其红外和紫外尾巴解析获得。在整个复平面上计算鬼敷料功能,并确定和讨论其显着特征。

英文摘要:

We compute the ghost spectral function in Yang-Mills theory by solving the corresponding Dyson-Schwinger equation for a given input gluon spectral function. The results encompass both scaling and decoupling solutions for the gluon propagator input. The resulting ghost spectral function displays a particle peak at vanishing momentum and a negative scattering spectrum, whose infrared and ultraviolet tails are obtained analytically. The ghost dressing function is computed in the entire complex plane, and its salient features are identified and 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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