Standard Model Effective Field Theory from On-shell Amplitudes
High Energy Physics - Phenomenology
2022-12-21 v2
Abstract
We present a general method of constructing unfactorizable on-shell amplitudes (amplitude basis), and build up their one-to-one correspondence to the independent and complete operator basis in effective field theory (EFT). We apply our method to the Standard Model EFT, and identify the amplitude basis in dimension 5 and 6, which correspond to the Weinberg operator and operators in Warsaw basis except for some linear combinations.
Cite
@article{arxiv.1902.06752,
title = {Standard Model Effective Field Theory from On-shell Amplitudes},
author = {Teng Ma and Jing Shu and Ming-Lei Xiao},
journal= {arXiv preprint arXiv:1902.06752},
year = {2022}
}
Comments
9 pages, 1 figure, 3 appendices