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Radial acceleration relation from symmetron fifth forces
Clare Burrage, Edmund J. Copeland, Peter Millington
We show that the radial acceleration relation for rotationally-supported galaxies may be explained, in the absence of cold dark matter, by a non-minimally coupled scalar field, who…
Constraining symmetron fields with atom interferometry
Clare Burrage, Andrew Kuribayashi-Coleman, James Stevenson +1
We apply the new constraints from atom-interferometry searches for screening mechanisms to the symmetron model, finding that these experiments exclude a previously unexplored regio…
A Compendium of Chameleon Constraints
Clare Burrage, Jeremy Sakstein
The chameleon model is a scalar field theory with a screening mechanism that explains how a cosmologically relevant light scalar can avoid the constraints of intra-solar-system sea…
Vacuum Cherenkov radiation and bremsstrahlung from disformal couplings
Carsten van de Bruck, Clare Burrage, Jack Morrice
The simplest way to modify gravity is to extend the gravitational sector to include an additional scalar degree of freedom. The most general metric that can be built in such a theo…
Cosmology and Fundamental Physics with the Euclid Satellite
Luca Amendola, Stephen Appleby, Anastasios Avgoustidis +69
Euclid is a European Space Agency medium class mission selected for launch in 2020 within the Cosmic Vision 2015 2025 program. The main goal of Euclid is to understand the origin o…
Disformal transformations on the CMB
Clare Burrage, Sebastian Cespedes, Anne-Christine Davis
In this work we study the role of disformal transformation on cosmological backgrounds and its relation to the speed of sound for tensor modes. A speed different from one for tenso…