532 citations · 3.8k across the 78 of their papers we have counts for
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Revisiting signatures of thermal axions in nonstandard cosmologies
Paola Arias, Nicolás Bernal, Jacek K. Osiński +2
We revisit the formation of a thermal population of hadronic axions in nonstandard cosmologies, in light of the recent developments in obtaining continuous and smooth interaction r…
The flavor of a light charged Higgs
Nicolás Bernal, Marta Losada, Yosef Nir +1
The ATLAS Collaboration has recently reported a search for light-charged Higgs in decay, with . An excess with a local significance of approximately $3…
Neutrinos from GRB 221009A: producing ALPs and explaining LHAASO anomalous event
Nicolás Bernal, Yasaman Farzan, Alexei Yu. Smirnov
We propose a novel explanation for the 18 TeV gamma ray from GRB 221009A observed by LHAASO. High-energy neutrinos are converted into axion-like particles (ALPs) via their interact…
From WIMPs to FIMPs with Low Reheating Temperatures
Javier Silva-Malpartida, Nicolás Bernal, Joel Jones-Pérez +1
Weakly- and Feebly-Interacting Massive Particles (WIMPs and FIMPs) are among the best-motivated dark matter (DM) candidates. In this paper, we investigate the production of DM thro…
Bremsstrahlung-induced Gravitational Waves in Monomial Potentials during Reheating
Basabendu Barman, Nicolás Bernal, Yong Xu +1
We discuss the production of primordial gravitational waves (GW) from radiative inflaton decay during the period of reheating, assuming perturbative decay of the inflaton either in…
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…