Effective field theories provide a framework to characterize New Physics in a model-agnostic fashion via non-renormalizable operators and a well-prescribed expansion in energy scales. As a result, EFTs serve as the natural language for phenomenological explorations spanning decades in energy from both theoretical and experimental perspectives. Recent years have seen rapid growth in the study of EFTs for phenomenological applications and the accompanying complications concerning renormalization flow, number of parameters, robust interpretation of data, and validity regime/closure tests. On the theory front, the formulation of EFTs in terms of physical amplitudes has been applied to various aspects of EFTs, including the classification of EFTs, the computation of anomalous dimensions and the study of positivity.
In this scientific program, we seek to bring together the community of theorists and experimentalists using EFTs for new physics searches to discuss the best way forward for making EFT analyses more practical, more tractable, and retain model-independence to the largest extent. Not only will the program help spur collaboration and exchange about the latest experimental data and its interpretation using EFT, it will highlight commonalities of diverse EFT use cases to prescribe new ways to tackle old problems such as flat directions in parameter spaces, quantifying theoretical uncertainties, light degrees of freedom and model dependence. The program will also feature contributions focused on the mathematical aspects of EFTs, where unique insights will likely help deepen our practical knowledge of QFT.
Registration closes 07 May 2026 11:59 P.M. CET.