Publications (14)
Testing Chameleon Theories with Light Propagating through a Magnetic Field
P. Brax, C. van de Bruck, A. C. Davis +2
It was recently argued that the observed PVLAS anomaly can be explained by chameleon field theories in which large deviations from Newton's law can be avoided. Here we present the…
Search for chameleons with CAST
V. Anastassopoulos, M. Arik, S. Aune +61
In this work we present a search for (solar) chameleons with the CERN Axion Solar Telescope (CAST). This novel experimental technique, in the field of dark energy research, exploit…
Euclid: Constraining linearly scale-independent modifications of gravity with the spectroscopic and photometric primary probes
N. Frusciante, F. Pace, V. F. Cardone +127
The future Euclid space satellite mission will offer an invaluable opportunity to constrain modifications to Einstein's general relativity at cosmic scales. We focus on modified gr…
Euclid preparation. Review of forecast constraints on dark energy and modified gravity
Euclid Collaboration, N. Frusciante, M. Martinelli +326
The Euclid mission has been designed to provide, as one of its main deliverables, information on the nature of the gravitational interaction, which determines the expansion of the…
Conceptual Design of the International Axion Observatory (IAXO)
E. Armengaud, F. T. Avignone, M. Betz +85
The International Axion Observatory (IAXO) will be a forth generation axion helioscope. As its primary physics goal, IAXO will look for axions or axion-like particles (ALPs) origin…
Prospects for Fundamental Physics with LISA
Enrico Barausse, Emanuele Berti, Thomas Hertog +318
In this paper, which is of programmatic rather than quantitative nature, we aim to further delineate and sharpen the future potential of the LISA mission in the area of fundamental…
Wave function of the radion with a bulk scalar field
P. Brax, C. van de Bruck, A. C. Davis +1
The behaviour of the distance between two branes (the `radion') in a braneworld model with a bulk scalar field is investigated. We show that the BPS conditions of supergravity ensu…
Four--dimensional Gravity from Singular Spaces
P. Brax, C. van de Bruck, A. C. Davis +1
The modification to four--dimensional Einstein gravity at low energy in two brane models is investigated within supergravity in singular spaces. Using perturbation theory around a…
Improved Search for Solar Chameleons with a GridPix Detector at CAST
V. Anastassopoulos, S. Aune, K. Barth +66
We report on a new search for solar chameleons with the CERN Axion Solar Telescope (CAST). A GridPix detector was used to search for soft X-ray photons in the energy range from 200…
Conformal Inflation Coupled to Matter
P. Brax, A. C. Davis
We formulate new conformal models of inflation and dark energy which generalise the Higgs-Dilaton scenario. We embed these models in unimodular gravity whose effect is to break sca…
effectively from Inflation to Dark Energy
P. Brax, P. Vanhove
We consider the single-parameter gravitational action and use constraints from astrophysics and the laboratory to derive a natural relation between th…
Brane-World Cosmology, Bulk Scalars and Perturbations
P. Brax, C. van de Bruck, A. C. Davis
We investigate aspects of cosmology in brane world theories with a bulk scalar field. We concentrate on a recent model motivated from supergravity in singular spaces. After discuss…
Brane Inflation and Defect Formation
A. C. Davis, P. Brax, C. van de Bruck
Brane inflation and the production of topological defects at the end of the inflationary phase are discussed. After a description of the inflationary setup we discuss the propertie…
Flavor changing neutral current constraints on standard-like orbifold models
P. Brax, M. Chemtob
We examine for standard-like orbifold compactification models the constraints due to quarks and leptons generation non-universality of soft supersymmetry breaking interactions. We…