13 papers
Dark Photons from Perturbative Decay of a Misaligned Higgs Field
James M. Cline, Gonzalo Herrera, Jean-Samuel Roux
We reconsider the production of dark photons as dark matter, from the perturbative decay of a dark Higgs field , that is stochastically misaligned from the minimum of its p…
Scale-Invariant Open Quantum Systems
Carlos Argüelles, Gabriela Barenboim, Gonzalo Herrera +2
We develop a complete theoretical framework for open quantum systems coupled to scale-invariant environments. We show that such environments are universally described by unparticle…
Formation and Redshift Evolution of Dark Matter Spikes
Gonzalo Herrera, Abdelaziz Hussein, Lina Necib +2
Dark matter density spikes forming around adiabatically growing black holes can dramatically enhance indirect and direct detection signals. Canonical predictions, however, assume a…
The Highest-Energy Neutrino Event Constrains Dark Matter-Neutrino Interactions
Toni Bertólez-MartÃnez, Gonzalo Herrera, Pablo MartÃnez-Miravé +1
Dark Matter-neutrino interactions affect the propagation of astrophysical neutrinos, attenuating the flux of neutrinos arriving at Earth. Using the highest-energy neutrino event de…
Neutrinos as Dark Matter
James M. Cline, Gonzalo Herrera, Jean-Samuel Roux
Active neutrinos in standard cosmology were ruled out as a dark matter candidate in the 1980's. The reason is twofold: they are too light to account for the observed energy density…
Novel method to trace the dark matter density profile around supermassive black holes with AGN reverberation mapping
Mayank Sharma, Gonzalo Herrera, Nahum Arav +1
We propose a new method to determine the dark matter density profile in the vicinity of distant supermassive black holes (SMBH) using reverberation mapping (RM) measurements of act…