https://doi.org/10.1140/epja/i2015-15101-5
Regular Article - Theoretical Physics
Complex-mass renormalization in hadronic EFT: Applicability at two-loop order
1
Helmholtz Institute Mainz, University of Mainz, D-55099, Mainz, Germany
2
Institut für Theoretische Physik II, Ruhr-Universität Bochum, D-44780, Bochum, Germany
3
Institute for Advanced Simulation, Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425, Jülich, Germany
4
Tbilisi State University, 0186, Tbilisi, Georgia
5
Helmholtz Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, D-53115, Bonn, Germany
* e-mail: jgegelia@hotmail.com
Received:
24
July
2015
Revised:
31
July
2015
Accepted:
5
August
2015
Published online:
20
August
2015
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.
© SIF, Springer-Verlag Berlin Heidelberg, 2015
