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arXiv 2402.14769hep-phhep-thnucl-th
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带电流的广义程函恒等式

Generalized eikonal identities for charged currents

Ryan Plestid

AI总结:

本文在静态极限下推导出新的广义程函恒等式,证明一类梯形图等价于仅含单个重-轻顶点和背景库仑场的理论,并将其应用于核β衰变,澄清了独立粒子模型与模型无关EFT计算的关系。

摘要:

我们讨论耦合两个重场和一个轻场的接触算符的QED辐射修正。在静态极限下推导出新的程函恒等式,证明一类梯形图等价于一个具有单个重-轻顶点和仅与轻场相互作用的背景库仑场的等效理论。我们将这些新恒等式应用于核β衰变,并证明Jaus、Rasche、Sirlin和Zucchini所使用的“独立粒子模型”与模型无关的EFT计算密切相关,但并不完全相同。

英文摘要:

We discuss QED radiative corrections to contact operators coupling two heavy fields and one light field. New eikonal identities are derived in the static limit that demonstrate the equivalence of a class of ladder graphs to an equivalent theory with a single heavy-light vertex and a background Coulomb field which communicates exclusively with the light field. We apply these new identities to nuclear beta decays and demonstrates that the "independent particle model" used by Jaus, Rasche, Sirlin \& Zucchini is closely related, though not identical, to a model independent EFT calculation.

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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