The EFT Bootstrap at Finite $M_{PL}$
High Energy Physics - Theory
2025-06-24 v1
Abstract
We explore the impact of loop effects on positivity in effective field theories emerging in the infrared from unitary and causal microscopic dynamics. Focusing on massless particles coupled to gravity, we address the treatment of forward-limit divergences from loop discontinuities and establish necessary conditions for maintaining computational control in perturbation theory. While loop effects remain small, ensuring consistency in our approach leads to a significant impact on bounds, even at tree level.
Cite
@article{arxiv.2501.18465,
title = {The EFT Bootstrap at Finite $M_{PL}$},
author = {Carl Beadle and Giulia Isabella and Davide Perrone and Sara Ricossa and Francesco Riva and Francesco Serra},
journal= {arXiv preprint arXiv:2501.18465},
year = {2025}
}
Comments
38 pages, 4 appendices, 15 figures