# Completing the scalar and fermionic Universal One-Loop Effective Action

## TL;DR

This paper extends the Universal One-Loop Effective Action to include scalar and fermionic operators, providing analytic expressions for Wilson coefficients up to dimension six, applicable to a wider range of UV models.

## Contribution

It introduces a comprehensive extension of the UOLEA to scalar and fermionic operators, enabling broader applications in effective field theory analyses.

## Key findings

- Derived generic analytic expressions for Wilson coefficients.
- Applied results to supersymmetric models with integrated-out particles.
- Enhanced the utility of UOLEA for diverse UV completions.

## Abstract

We extend the known Universal One-Loop Effective Action (UOLEA) by all operators which involve scalars and fermions, not including contributions arising from open covariant derivatives. Our generic analytic expressions for the one-loop Wilson coefficients of effective operators up to dimension six allow for an application of the UOLEA to a broader class of UV-complete models. We apply our generic results to various effective theories of supersymmetric models, where different supersymmetric particles are integrated out at a high mass scale.