06 October, 14:00

via Zoom

Speaker: Long Chen, Shandong University in Jinan, China

Title: A unique γ5 prescription for the Standard Model in Dimensional Regularization

Abstract: Calculating correctly the high-order perturbative corrections to quantities involving an axial-current operator in dimensional regularization (DR) is non-trivial due to the well-known γ5 issue in D dimensions. In this talk we will review a few practical mainstream prescriptions that have been successfully applied in many high-order perturbative calculations, and discuss their advantages and disadvantages both from the technical side and the conceptual side. In the end, we propose a unique prescription for treating γ5 in the Standard Model in DR.