Speaker
Description
In recent years the use of nuclei has become increasingly relevant for experiments studying fundamental parameters of electroweak interactions. For experimental success, reliable theoretical inputs with well-controlled errors are required. Currently chiral effective field theory is one of the most adept theory fulfilling this requirement. In order to use this theory as a tool for studying electroweak interactions with nuclei, it is crucial to validate it on light nuclear systems for which the numerical calculation is well under control. In this talk, I will present some recent calculations of electromagnetic and electroweak processes involving few-body nuclei. The aim is to discuss how we can test the reliability of chiral effective field theory for these processes when we are computing few-body observables.In this context, we will focus on how to determine the free parameters of the currents as well as the computation of the theoretical truncation errors and how these can help to identify limitations and issues in the theory. Moreover, we will give a prospect on the calculation of some of these observables in heavier systems that are more relevant for future experiments.
