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Fifth-force screening around extremely compact sources

Burrage, Clare; Elder, Benjamin; Millington, Peter; Saadeh, Daniela; Thrussell, Ben

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Authors

Benjamin Elder

Peter Millington

Daniela Saadeh

Ben Thrussell



Abstract

Many non-linear scalar field theories possess a screening mechanism that can suppress any associated fifth force in dense environments. As a result, these theories can evade local experimental tests of new forces. Chameleon-like screening, which occurs because of non-linearities in the scalar potential or the coupling to matter, is well understood around extended objects. However, many experimental tests of these theories involve objects with spatial extent much smaller than the scalar field's Compton wavelength, and which could therefore be considered point-like. In this work, we determine how the fifth forces are screened in the limit that the source objects become extremely compact.

Citation

Burrage, C., Elder, B., Millington, P., Saadeh, D., & Thrussell, B. (2021). Fifth-force screening around extremely compact sources. Journal of Cosmology and Astroparticle Physics, 2021(August 2021), Article JCAP08(2021)052. https://doi.org/10.1088/1475-7516/2021/08/052

Journal Article Type Article
Acceptance Date Jul 19, 2021
Online Publication Date Aug 23, 2021
Publication Date Aug 23, 2021
Deposit Date Jul 30, 2021
Publicly Available Date Aug 23, 2021
Journal Journal of Cosmology and Astroparticle Physics
Electronic ISSN 1475-7516
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 2021
Issue August 2021
Article Number JCAP08(2021)052
DOI https://doi.org/10.1088/1475-7516/2021/08/052
Public URL https://nottingham-repository.worktribe.com/output/5891396
Publisher URL https://iopscience.iop.org/article/10.1088/1475-7516/2021/08/052

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