Functional Prescription for EFT Matching
High Energy Physics - Phenomenology
2021-03-17 v1 High Energy Physics - Theory
Abstract
We simplify the one-loop functional matching formalism to develop a streamlined prescription. The functional approach is conceptually appealing: all calculations are performed within the UV theory at the matching scale, and no prior determination of an Effective Field Theory (EFT) operator basis is required. Our prescription accommodates any relativistic UV theory that contains generic interactions (including derivative couplings) among scalar, fermion, and vector fields. As an example application, we match the singlet scalar extended Standard Model (SM) onto SMEFT.
Keywords
Cite
@article{arxiv.2011.02484,
title = {Functional Prescription for EFT Matching},
author = {Timothy Cohen and Xiaochuan Lu and Zhengkang Zhang},
journal= {arXiv preprint arXiv:2011.02484},
year = {2021}
}
Comments
28 pages + appendices, 1 figure, 4 tables