Massive Galileons and Vainshtein screening

Burrage, Clare; Coltman, Ben; Padilla, Antonio; Saadeh, Daniela; Wilson, Toby

Abstract

The Vainshtein screening mechanism relies on nonlinear interaction terms becoming dominant close to a compact source. However, theories displaying this mechanism are generally understood to be low-energy theories: it is unclear that operators emerging from UV completion do not interfere with terms inducing Vainshtein screening. In this work, we find a set of interacting massive Galileon theories that exhibit Vainshtein screening; examining potential UV completions of these theories, we determine that the screening does not survive the extension. We find that neglecting operators when integrating out a heavy field is non-trivial, and either care must be taken to ensure that omitted terms are small for the whole domain, or one is forced to work solely with the UV theory. We also comment on massive deformations of the familiar Wess-Zumino Galileons.

Citation

Burrage, C., Coltman, B., Padilla, A., Saadeh, D., & Wilson, T. (2021). Massive Galileons and Vainshtein screening. Journal of Cosmology and Astroparticle Physics, 2021(02), Article 050. https://doi.org/10.1088/1475-7516/2021/02/050

• Journal Article Type: Article
• Acceptance Date: Dec 28, 2020
• Online Publication Date: Feb 23, 2021
• Publication Date: Feb 23, 2021
• Deposit Date: May 17, 2021
• Publicly Available Date: Feb 24, 2022
• Journal: Journal of Cosmology and Astroparticle Physics
• Electronic ISSN: 1475-7516
• Publisher: IOP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 2021
• Issue: 02
• Article Number: 050
• DOI: https://doi.org/10.1088/1475-7516/2021/02/050
• Keywords: Astronomy and Astrophysics
• Public URL: https://nottingham-repository.worktribe.com/output/5557248
• Publisher URL: https://iopscience.iop.org/article/10.1088/1475-7516/2021/02/050
• Additional Information: This is the Accepted Manuscript version of an article accepted for publication in Journal of Cosmology and Astroparticle Physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://iopscience.iop.org/article/10.1088/1475-7516/2021/02/050