NLO下的红外微妙之处与手征顶点：一项隐式正则化分析
Infrared Subtleties and Chiral Vertices at NLO: An Implicit Regularization Analysis
AI总结：
本文在NLO的Z及标量玻色子夸克-反夸克衰变中应用IReg，证明其可处理γ₅与红外抵消并保持规范不变性。
摘要：
我们在Z玻色子或标量（CP偶或CP奇）玻色子的夸克-反夸克衰变中于NLO采用隐式正则化（IReg），并与维数方案进行比较，以揭示涉及红外发散抵消和γ₅矩阵问题的微妙之处。除了IReg中不存在瞬逝场（例如某些部分在物理维数中运作的方案所需的ε标量）之外，我们验证了我们的程序在γ₅矩阵存在时保持规范不变性，而无需保持对称性的抵消项，同时振幅如KLN定理所要求的那样是红外有限的。
英文摘要：
We employ implicit regularization (IReg) in quark-antiquark decays of the Z, or of a scalar (CP-even or odd) boson at NLO, and compare with dimensional schemes to reveal subtleties involving infrared divergence cancellation and $γ_5$-matrix issues. Besides the absence of evanescent fields in IReg, such as $ε$-scalars required in certain schemes that operate partially in the physical dimension, we verify that our procedure preserves gauge invariance in the presence of the $γ_5$ matrix without requiring symmetry preserving counterterms while the amplitude is infrared finite as required by the KLN theorem.
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。
