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arXiv 1502.00086hep-phhep-lathep-th
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重整化子的唯象和晶格正则化的OPE:胶子凝聚和重夸克极质量

Phenomenology of renormalons and the OPE from lattice regularization: the gluon condensate and the heavy quark pole mass

Gunnar S. Bali, Antonio Pineda

摘要:

本文研究了元格(胶子凝聚)的算子乘积展开和无限重夸克的自能。首先,我们计算他们的微扰展开顺序$α^{35}$和$α^{20}$,分别在格格式。在这两种情况下,我们都达到了渐近状态,其中重正马龙行为开始。减去微扰级数,我们得到了它们各自的算子乘积展开的领先非微扰修正。在第一种情况下,我们得到了胶子凝聚,在第二种情况下,我们得到了无限质量极限下重夸克的结合能。结果与重正化和算子乘积展开的预期完全一致。

英文摘要:

We study the operator product expansion of the plaquette (gluon condensate) and the self-energy of an infinitely heavy quark. We first compute their perturbative expansions to order $α^{35}$ and $α^{20}$, respectively, in the lattice scheme. In both cases we reach the asymptotic regime where the renormalon behavior sets in. Subtracting the perturbative series, we obtain the leading non-perturbative corrections of their respective operator product expansions. In the first case we obtain the gluon condensate and in the second the binding energy of the heavy quark in the infinite mass limit. The results are fully consistent with the expectations from renormalons and the operator product expansion.

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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