513 citations · 6.8k across the 165 of their papers we have counts for
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Searching for Axion-like Particles with Active Galactic Nuclei
Clare Burrage, Anne-Christine Davis, Douglas J. Shaw
Strong mixing between photons and axion-like particles in the magnetic fields of clusters of galaxies induces a scatter in the observed luminosities of compact sources in the clust…
Modifying Gravity at Low Redshift
Philippe Brax, Carsten van de Bruck, Anne-Christine Davis +1
We consider the growth of cosmological perturbations in modified gravity models where a scalar field mediates a non-universal Yukawa force between different matter species. The gro…
Laboratory Tests of Chameleon Models
Philippe Brax, Carsten van de Bruck, Anne-Christine Davis +1
We present a cursory overview of chameleon models of dark energy and their laboratory tests with an emphasis on optical and Casimir experiments. Optical experiments measuring the e…
Higgs production as a probe of Chameleon Dark Energy
Philippe Brax, Clare Burrage, Anne-Christine Davis +2
In this paper we study various particle physics effects of a light, scalar dark energy field with chameleon-like couplings to matter. We show that a chameleon model with only matte…
Enhanced (p)reheating in DBI Inflation
A. C. Davis, Raquel H. Ribeiro
We study preheating in DBI hybrid inflation. Preheating occurs since the matter fields are non-minimally coupled to the inflaton. Despite the coupling being small, preheating happe…
The Effect of a Chameleon Scalar Field on the Cosmic Microwave Background
Anne-Christine Davis, Camilla A. O. Schelpe, Douglas J. Shaw
We show that a direct coupling between a chameleon-like scalar field and photons can give rise to a modified Sunyaev-Zel'dovich (SZ) effect in the Cosmic Microwave Background (CMB)…
Decoupling Dark Energy from Matter
Philippe Brax, Carsten van de Bruck, Jerome Martin +1
We examine the embedding of dark energy in high energy models based upon supergravity and extend the usual phenomenological setting comprising an observable sector and a hidden sup…
Collider constraints on interactions of dark energy with the Standard Model
Philippe Brax, Clare Burrage, Anne-Christine Davis +2
We study models in which a light scalar dark energy particle couples to the gauge fields of the electroweak force, the photon, Z and W bosons. Our analysis applies to a large class…
Active Galactic Nuclei Shed Light on Axion-like-Particles
Clare Burrage, Anne-Christine Davis, Douglas J. Shaw
We demonstrate that the scatter in the luminosity relations of astrophysical objects can be used to search for axion-like-particles (ALPs). This analysis is applied to observations…