The rise of SMEFT on-shell amplitudes

Rafael Aoude (PRISMA+ Cluster of Excellence & Institute of Physics, Johannes Gutenberg-Universität Mainz, Mainz, 55099, Germany) ; Camila Machado (PRISMA+ Cluster of Excellence & Institute of Physics, Johannes Gutenberg-Universität Mainz, Mainz, 55099, Germany)

We present a map between the tree-level Standard Model Effective Theory (SMEFT) in the Warsaw basis and massive on-shell amplitudes. As a first step, we focus on the electroweak sector without fermions. We describe the Feynman rules for a particular choice of input scheme and compare them with the 3-point massive amplitudes in the broken phase. Thereby we fix an on-shell basis which allows us to study scattering amplitudes with recursion relations. We hope to open up new avenues of exploration to a complete formulation of massive EFTs in the on-shell language.

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Published on:
06 December 2019
Publisher:
Springer
Published in:
Journal of High Energy Physics , Volume 2019 (2019)
Issue 12
Pages 1-25
DOI:
https://doi.org/10.1007/JHEP12(2019)058
arXiv:
1905.11433
Copyrights:
The Author(s)
Licence:
CC-BY-3.0

Fulltext files: