Proca-Higgs balls and stars in a UV completion for Proca self-interactions
Abstract
We consider a Proca-Higgs model wherein a complex vector field gains mass via spontaneous symmetry breaking, by coupling to a real scalar field with a Higgs-type potential. This vector version of the scalar Friedberg-Lee-Sirlin model, can be considered as a UV completion of a complex Proca model with self-interactions. We study the flat spacetime and self-gravitating solitons of the model, that we dub Proca-Higgs \textit{balls} and \textit{stars} respectively, exploring the domain of solutions and describing some of their mathematical and physical properties. The stars reduce to the well-known (mini-)Proca stars in some limits. The full model evades the hyperbolicity problems of the self-interacting Proca models, offering novel possibilities for dynamical studies beyond mini-Proca stars.
Keywords
Cite
@article{arxiv.2301.04172,
title = {Proca-Higgs balls and stars in a UV completion for Proca self-interactions},
author = {Carlos Herdeiro and Eugen Radu and Etevaldo dos Santos Costa Filho},
journal= {arXiv preprint arXiv:2301.04172},
year = {2023}
}