138 citations · 197 across the 7 of their papers we have counts for
7 papers
The price for monopole dark matter
Felix Brümmer, Giacomo Ferrante, Théodore Fischer +1
We construct an explicit model where dark matter consists of 't Hooft-Polyakov monopoles. The dark sector is in thermal contact with the Standard Model, and dark monopoles are crea…
Cosmological consequences of spontaneous symmetry breaking
Giacomo Ferrante
The Standard Model of particle physics and the CDM model of cosmology provide an incomplete description of our Universe. Both models face challenges, including explaining the na…
No room for minimal monopole dark matter
Felix Brümmer, Giacomo Ferrante, Théodore Fischer +1
The magnetic monopole of a dark sector has been advocated as an appealing dark matter candidate. We revisit the computation of the monopole abundance , generated by a thermal…
Hybrid inflation and gravitational waves from accidentally light scalars
Felix Brümmer, Giacomo Ferrante, Michele Frigerio
We construct a hybrid-inflation model where the inflaton potential is generated radiatively, as gauge symmetries guarantee it to be accidentally flat at tree level. The model can b…
Accidentally light scalars from large representations
Felix Brümmer, Giacomo Ferrante, Michele Frigerio +1
In models with spontaneous symmetry breaking by scalar fields in large group representations, we observe that some of the scalar masses can be loop-suppressed with respect to the n…
Primordial black holes in the curvaton model: possible connections to pulsar timing arrays and dark matter
Giacomo Ferrante, Gabriele Franciolini, Antonio Junior Iovino +1
We revise primordial black holes (PBHs) production in the axion-curvaton model, in light of recent developments in the computation of their abundance accounting for non-gaussianiti…
Primordial non-gaussianity up to all orders: theoretical aspects and implications for primordial black hole models
Giacomo Ferrante, Gabriele Franciolini, Antonio Junior Iovino +1
We develop an exact formalism for the computation of the abundance of primordial black holes (PBHs) in the presence of local non-gaussianity (NG) in the curvature perturbation fiel…