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arXiv 2202.08285hep-thhep-ph
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胶子倏逝算符:分类和单圈重整化

Gluonic evanescent operators: classification and one-loop renormalization

Qingjun Jin, Ke Ren, Gang Yang, Rui Yu

摘要:

消逝算符是一类特殊的算符,它们在四维时空中经典地消失,而在一般维度中它们是非零的,并且在维度正则化中在量子环水平上具有非平凡的物理效应。本文首次研究了纯Yang-Mills理论中的倏逝算子。我们开发了一个系统的方法来分类和构建的$d$维洛伦兹不变的倏逝算子,开始出现在质量维10。我们还通过$d$维么正性方法计算了10维算子的单圈形状因子,得到了它们的单圈反常维数。这些算子是研究涉及Yang-Mills扇区的有效场论中高维算子的必要成分。

英文摘要:

Evanescent operators are a special class of operators that vanish classically in four-dimensional spacetime, while in general dimensions they are non-zero and are expected to have non-trivial physical effects at the quantum loop level in dimensional regularization. In this paper we initiate the study of evanescent operators in pure Yang-Mills theory. We develop a systematic method for classifying and constructing the $d$-dimensional Lorentz invariant evanescent operators, which start to appear at mass dimension ten. We also compute one-loop form factors for the dimension-ten operators via the $d$-dimensional unitarity method and obtain their one-loop anomalous dimensions. These operators are necessary ingredients in the study of high dimensional operators in effective field theories involving a Yang-Mills sector.

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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