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Fifth forces, Higgs portals and broken scale invariance (2018)
Journal Article
Burrage, C., Copeland, E. J., Millington, P., & Spannowsky, M. (2018). Fifth forces, Higgs portals and broken scale invariance. Journal of Cosmology and Astroparticle Physics, 2018(11), 1-31. https://doi.org/10.1088/1475-7516/2018/11/036

© 2018 IOP Publishing Ltd and Sissa Medialab. We study the relationship between the strength of fifth forces and the origin of scale breaking in the Standard Model (SM) of particle physics. We start with a light scalar field that is conformally coupl... Read More about Fifth forces, Higgs portals and broken scale invariance.

Stellar kinematics from the symmetron fifth force in the Milky Way disk (2018)
Journal Article
O’Hare, C. A., & Burrage, C. (2018). Stellar kinematics from the symmetron fifth force in the Milky Way disk. Physical Review D, 98(6), Article 064019. https://doi.org/10.1103/PhysRevD.98.064019

It has been shown that the presence of nonminimally coupled scalar fields giving rise to a fifth force can noticeably alter dynamics on galactic scales. Such a fifth force must be screened in the Solar System but if unscreened it can have similar obs... Read More about Stellar kinematics from the symmetron fifth force in the Milky Way disk.

Laboratory constraints (2018)
Journal Article
Brax, P., Burrage, C., & Davis, A. (2018). Laboratory constraints. International Journal of Modern Physics D, (1848009). doi:10.1142/s0218271818480097. ISSN 0218-2718

We review laboratory constraints on theories of modified gravity and show that they are complementary to cosmological and astrophysical tests. We particularly focus on the environmentally dependent dilaton, as a worked example to show how such constr... Read More about Laboratory constraints.

The shape dependence of chameleon screening (2018)
Journal Article
Burrage, C., Copeland, E. J., Moss, A., & Stevenson, J. A. (2018). The shape dependence of chameleon screening. Journal of Cosmology and Astroparticle Physics, 2018(1), https://doi.org/10.1088/1475-7516/2018/01/056

Chameleon scalar fields can screen their associated fifth forces from detection by changing their mass with the local density. These models are an archetypal example of a screening mechanism, and have become an important target for both cosmological... Read More about The shape dependence of chameleon screening.