299 citations · 2.9k across the 62 of their papers we have counts for
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Natural Metric-Affine Inflation
Antonio Racioppi, Alberto Salvio
We consider here natural inflation in the low energy (two-derivative) metric-affine theory containing only the minimal degrees of freedom in the inflationary sector, i.e. the massl…
Pseudo-Goldstone dark matter in a radiative inverse seesaw scenario
Kristjan Kannike, Aleksei Kubarski, Luca Marzola +1
We consider a scale-invariant inverse seesaw model with dynamical breaking of gauge symmetry and lepton number. In some regions of the parameter space, the Majoron - the pseudo-Gol…
Non-minimal (self-)running inflation: metric vs. Palatini formulation
Antonio Racioppi
We consider a model of quartic inflation where the inflaton is coupled non-minimally to gravity and the self-induced radiative corrections to its effective potential are dominant.…
A minimal model of inflation and dark radiation
Kristjan Kannike, Aleksei Kubarski, Luca Marzola +1
We show that a minimal extension of the Standard Model including a new complex scalar field can explain inflation and the observed effective number of neutrinos. The real part of t…
The EDGES 21 cm Anomaly and Properties of Dark Matter
Sean Fraser, Andi Hektor, Gert Hütsi +8
The recently claimed anomaly in the measurement of the 21 cm hydrogen absorption signal by EDGES at , if cosmological, requires the existence of new physics. The possible…
Loop inflection-point inflation
Konstantinos Dimopoulos, Charlotte Owen, Antonio Racioppi
A novel inflection-point inflation model is analysed. The model considers a massless scalar field, whose self-coupling's running is stabilised by a non-renormalisable operator. The…