Introducing an interface between WHIZARD and FeynRules

TL;DR

This paper presents an interface that connects FeynRules with WHIZARD, simplifying the process of implementing new physics models into the Monte Carlo event generator and enhancing usability for model builders.

Contribution

The paper introduces an interface extending FeynRules to automatically generate WHIZARD model implementations, streamlining model integration.

Findings

Simplifies model implementation in WHIZARD

Automates model generation from FeynRules

Enhances usability for physicists

Abstract

While Monte Carlo event generators like WHIZARD have become indispensable tools in studying the impact of new physics on collider observables over the last decades, the implementation of new models in such packages has remained a rather awkward and error-prone process. Recently, the FeynRules package was introduced which greatly simplifies this process by providing a single unified model format from which model implementations for many different Monte Carlo codes can be derived automatically. In this note, we present an interface which extends FeynRules to provide this functionality also for the WHIZARD package, thus making WHIZARD's strengths and performance easily available to model builders.