164 citations · 741 across the 12 of their papers we have counts for
5 papers · 1 filter
Gamma-Rays from Decaying Dark Matter
Gianfranco Bertone, Wilfried Buchmuller, Laura Covi +1
We study the prospects for detecting gamma-rays from decaying Dark Matter (DM), focusing in particular on gravitino DM in R-parity breaking vacua. Given the substantially different…
New Constraints on Oscillations in the Primordial Spectrum of Inflationary Perturbations
Jan Hamann, Laura Covi, Alessandro Melchiorri +1
We revisit the problem of constraining steps in the inflationary potential with cosmological data. We argue that a step in the inflationary potential produces qualitatively similar…
Inflation and WMAP three year data: Features have a Future!
Laura Covi, Jan Hamann, Alessandro Melchiorri +2
The new three year WMAP data seem to confirm the presence of non-standard large scale features in the Cosmic Microwave Anisotropies power spectrum. While these features may hint at…
The running-mass inflation model and WMAP
Laura Covi, David H. Lyth, Alessandro Melchiorri +1
We consider the observational constraints on the running-mass inflationary model, and in particular on the scale-dependence of the spectral index, from the new Cosmic Microwave Bac…
Inflation models, spectral index and observational constraints
Laura Covi
We have evaluated the observational constraints on the spectral index , in the context of a CDM model. For scale-independent, as predicted by most models of inflation, pr…