Introduction to Loop Calculations, Part I
Dr. Andrea Ferroglia (Institut für Physik - ThEP)

The goal of these lectures is to review, at an introductory level, some of the techniques employed for the calculation of integrals originating from Feynman diagrams with closed loops of virtual particles. I plan to discuss the basics of Feynman parameterization, dimensional regularization, calculation of one-loop scalar integrals, Passarino-Veltman reduction, reduction to master integrals by means of the integration by parts identities, the differential equation method, and methods based on Mellin-Barnes representations.