The next generation of OpenLoops

Abstract

We report on the development of a new generator for tree and 1-loop matrix elements based on the open-loops algorithm. It is designed to overcome the known shortcomings of the current OpenLoops generator and other existing tools. Key features are a fast on-the-fly process generator which does not require generating process dependent source code, a model agnostic design, supporting the full Standard Model with QCD and electroweak corrections, Beyond-the-Standard Model and Effective Field Theories, as well as interfaces to different reduction libraries, and multi-precision numerics.