Gravitational mass generation and consistent non-minimal couplings: cubics and quartics of a massive vector
High Energy Physics - Phenomenology
2026-03-26 v1 High Energy Physics - Theory
Abstract
An attempt to evade the strict uniqueness of consistent interactions involving spin-2 particles is made by modifying the Noether procedure from the outset. A vector field is introduced, coupled to a graviton already at the level of quadratic mixing. The byproduct is a gauge-invariant mass for the vector and novel consistent interactions, here derived and tested up to quartic order. A simple geometric interpretation of the vector field appears possible.
Cite
@article{arxiv.2603.24008,
title = {Gravitational mass generation and consistent non-minimal couplings: cubics and quartics of a massive vector},
author = {Carlo Marzo},
journal= {arXiv preprint arXiv:2603.24008},
year = {2026}
}
Comments
9 pages. Raw digitalized formulas accessible from the linked GitHub repository or upon request to the author