Würzburg 2018 – wissenschaftliches Programm
T 84.1: Vortrag
Donnerstag, 22. März 2018, 16:30–16:45, Z6 - SR 1.010
Automatic calculations of effective Lagrangians in the path integral approach — Michael Kraemer, Alexander Voigt, and •Benjamin Summ — RWTH Aachen University, Aachen, Germany
Effective field theory (EFT) has become a major tool for studying extensions of the Standard Model. Unfortunately, the EFT approach requires the calculation of the effective action and higher dimensional operators, which in general is a model dependent task. Recently, a method based on the path integral formalism was introduced, which at one-loop reduces this calculation to transformations of the original Lagrangian and insertion into a master formula. We present this method and extend it to include the treatment of epsilon scalars, which become important when switching from a supersymmetric theory to an EFT without supersymmetry. We further discuss the possibility of automatizing the calculation of the effective action based on this method.