108 citations · 1.3k across the 33 of their papers we have counts for
34 papers
Gravitational Wave from Graviton Bremsstrahlung during Reheating
Basabendu Barman, Nicolás Bernal, Yong Xu +1
We revisit graviton production via Bremsstrahlung from the decay of the inflaton during inflationary reheating. Using two complementary computational techniques, we first show that…
The model of three-component scalar dark matter
Geneviève Bélanger, Alexander Pukhov, Carlos E. Yaguna +1
We investigate, for the first time, a scenario where the dark matter consists of three complex scalar fields that are stabilized by a single symmetry. As an extension of the…
Ultraviolet Freeze-in with a Time-dependent Inflaton Decay
Basabendu Barman, Nicolás Bernal, Yong Xu +1
It is typically assumed that during reheating the inflaton decays with a constant decay width. However, this is not guaranteed and can have a strong impact on the dark matter (DM)…
Fermion and scalar two-component dark matter from a symmetry
Carlos E. Yaguna, Óscar Zapata
We revisit a two-component dark matter model in which the dark matter particles are a singlet fermion () and a singlet scalar (), both stabilized by a single symmetry.…
ALP Dark Matter in a Primordial Black Hole Dominated Universe
Nicolás Bernal, Yuber F. Perez-Gonzalez, Yong Xu +1
We investigate the phenomenological consequences of axion-like particle (ALP) dark matter with an early matter domination triggered by primordial black holes (PBHs). We focus on li…
Singlet fermion dark matter and Dirac neutrinos from Peccei-Quinn symmetry
Cristian D. R. Carvajal, Robinson Longas, Oscar Rodríguez +1
The Peccei-Quinn (PQ) mechanism not only acts as an explanation for the absence of strong CP violation but also can play a main role in the solution to other open questions in part…