Complex-mass renormalization in hadronic EFT: applicability at two-loop order

Abstract

We discuss the application of the complex-mass scheme to multi-loop diagrams in hadronic effective field theory by considering as an example a two-loop self-energy diagram. We show that the renormalized two-loop diagram satisfies the power counting.

Comments: 8 pages, 2 figures, version accepted for publication in EPJA