Abstract
AbstractWe 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 $$\gamma _5$$
γ
5
-matrix issues. Besides the absence of evanescent fields in IReg, such as $$\epsilon $$
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 $$\gamma _5$$
γ
5
matrix without requiring symmetry preserving counterterms while the amplitude is infrared finite as stated by the KLN theorem.
Funder
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Fundação para a Ciência e a Tecnologia
Publisher
Springer Science and Business Media LLC
Subject
Physics and Astronomy (miscellaneous),Engineering (miscellaneous)
Cited by
1 articles.
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