{{tag>A1a}} ====== P3H-24-076: Renormalization of the Pseudoscalar Operator at four loops in QCD ====== ^P3H-24-076 ^ |Title: Renormalization of the Pseudoscalar Operator at four loops in QCD | |Type: Paper | |Authors: L. Chen, M. Czakon, M. Niggetiedt | |[[https://arxiv.org/abs/2410.18674|arXiv:2410.18674]] | |Info: |