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arXiv 2512.04064hep-phhep-th
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有效场论中双环运行的新见解

New insights into two-loop running in effective field theories

Universidad de Granada(格拉纳达大学)

Mikael Chala, Javier López Miras

AI总结:

通过将四维有效场论视为五维紧凑化版本的红外极限,研究者无需引入 gauge-breaking counter-terms 等方法,计算了双环异常维数及临界指数。

摘要:

我们展示通过将四维有效场论视为5维紧凑化版本的红外(IR)极限,可以无需 gauge-breaking counter-terms、IR 重新排列或几何方法来计算双环异常维数。四维中的紫外(UV)发散可通过从5维到4维的匹配中读取红外发散得到。我们使用这种方法交叉验证文献中的最新结果,并计算了SMEFT到八维以及阿贝尔Higgs模型在大量味数下的带电固定点中的某些临界指数的双环异常维数。

英文摘要:

We show that, by viewing a 4D effective-field theory as the infrared (IR) limit of the compactified version in 5D, we can compute two-loop anomalous dimensions without gauge-breaking counter-terms, IR re-arrangement or geometric methods. The ultraviolet (UV) divergences in 4D are read from the IR ones in the matching from 5D to 4D. We use this approach to cross-check recent results in the literature, as well as to compute novel two-loop anomalous dimensions in the SMEFT to dimension eight and certain critical exponents in the charged fixed point of the Abelian Higgs model at large number of flavors.

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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