242 citations · 401 across the 4 of their papers we have counts for
6 papers
Astrophysical limits on very light axion-like particles from Chandra grating spectroscopy of NGC 1275
Christopher S. Reynolds, M. C. David Marsh, Helen R. Russell +4
Axions/axion-like particles (ALPs) are a well motivated extension of the Standard Model and are generic within String Theory. The X-ray transparency of the intracluster medium (ICM…
Physics potential of the International Axion Observatory (IAXO)
E. Armengaud, D. Attie, S. Basso +88
We review the physics potential of a next generation search for solar axions: the International Axion Observatory (IAXO). Endowed with a sensitivity to discover axion-like particle…
Primordial Non-Gaussianity
P. Daniel Meerburg, Daniel Green, Muntazir Abidi +175
Our current understanding of the Universe is established through the pristine measurements of structure in the cosmic microwave background (CMB) and the distribution and shapes of…
Hyperinflation generalised: from its attractor mechanism to its tension with the `swampland conjectures'
Theodor Bjorkmo, M. C. David Marsh
In negatively curved field spaces, inflation can be realised even in steep potentials. Hyperinflation invokes the `centrifugal force' of a field orbiting the hyperbolic plane to su…
The Swampland, Quintessence and the Vacuum Energy
M. C. David Marsh
It has recently been conjectured that string theory does not admit de Sitter vacua, and that quintessence explains the current epoch of accelerated cosmic expansion. A proposed, ke…
A New Class of de Sitter Vacua in Type IIB Large Volume Compactifications
Diego Gallego, M. C. David Marsh, Bert Vercnocke +1
We construct a new class of metastable de Sitter vacua of flux compactifications of type IIB string theory. These solutions provide a natural extension of the `Large Volume Scenari…