662 citations · 4.2k across the 84 of their papers we have counts for
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Dark Radiation and Inflationary Freedom
Stefano Gariazzo
A relaxed primordial power spectrum (PPS) of scalar perturbations arising from inflation can impact the dark radiation constraints obtained from Cosmic Microwave Background and oth…
Effects of local features of the inflaton potential on the spectrum and bispectrum of primordial perturbations
Alexander Gallego Cadavid, Antonio Enea Romano
We study the effects of a class of features of the potential of slow-roll inflationary models corresponding to a step symmetrically dumped by an even power negative exponential fac…
Light sterile neutrinos
S. Gariazzo, C. Giunti, M. Laveder +2
The theory and phenomenology of light sterile neutrinos at the eV mass scale is reviewed. The reactor, Gallium and LSND anomalies are briefly described and interpreted as indicatio…
Primordial Power Spectrum features and constraints
Stefano Gariazzo, Laura Lopez-Honorez, Olga Mena
The simplest models of inflation predict small non-gaussianities and a featureless power spectrum. However, there exist a large number of well-motivated theoretical scenarios in wh…
Robustness of cosmological axion mass limits
Eleonora Di Valentino, Stefano Gariazzo, Elena Giusarma +1
We present cosmological bounds on the thermal axion mass in an extended cosmological scenario in which the primordial power spectrum of scalar perturbations differs from the usual…