Positivity Constraints on Interacting Pseudo-Linear Spin-2 Fields
High Energy Physics - Theory
2020-08-26 v2 General Relativity and Quantum Cosmology
Abstract
We explore the effective field theory for single and multiple interacting pseudo-linear spin-2 fields. By applying forward limit positivity bounds, we show that among the parameters contributing to elastic tree level scattering amplitude, there is no region of compatibility of the leading interactions with a standard local UV completion. Our result generalizes to any number of interacting pseudo-linear spin-2 fields. These results have significant implications for the organization of the effective field theory expansion for pseudo-linear fields.
Cite
@article{arxiv.1912.10018,
title = {Positivity Constraints on Interacting Pseudo-Linear Spin-2 Fields},
author = {Lasma Alberte and Claudia de Rham and Arshia Momeni and Justinas Rumbutis and Andrew J. Tolley},
journal= {arXiv preprint arXiv:1912.10018},
year = {2020}
}
Comments
18 pages