https://doi.org/10.1140/epjc/s10052-023-11726-1
Special Article - Tools for Experiment and Theory
A proof of concept for matchete: an automated tool for matching effective theories
1
Departamento de Física Teórica y del Cosmos, Universidad de Granada, Campus de Fuentenueva, 18071, Granada, Spain
2
PRISMA Cluster of Excellence and Mainz Institute for Theoretical Physics, Johannes Gutenberg University, 55099, Mainz, Germany
3
Physik Department T31, Technische Universität München, James-Franck-Str. 1, 85748, Garching, Germany
4
Department of Physics, University of California at San Diego, 9500 Gilman Drive, 92093-0319, La Jolla, CA, USA
5
Albert Einstein Center for Fundamental Physics, Institute for Theoretical Physics, University of Bern, 3012, Bern, Switzerland
6
Physik-Institut, Universität Zürich, 8057, Zurich, Switzerland
Received:
17
March
2023
Accepted:
17
June
2023
Published online:
25
July
2023
Studying the impact of new-physics models on low-energy observables necessitates matching to effective field theories at the relevant mass thresholds. We introduce the first public version of Matchete, a computer tool for matching weakly-coupled models at one-loop order. It uses functional methods to directly compute all matching contributions in a manifestly gauge-covariant manner, while simplification methods eliminate redundant operators from the output. We sketch the workings of the program and provide examples of how to match simple Standard Model extensions. The package, documentation, and example notebooks are publicly available at https://gitlab.com/matchete/matchete.
© The Author(s) 2023
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Funded by SCOAP3. SCOAP3 supports the goals of the International Year of Basic Sciences for Sustainable Development.
