5 papers
Beyond the Daisy Chain: Running and the 3D EFT View of Supercooled Phase Transitions
Martin Christiansen, Eric Madge, Cristina Puchades-Ibáñez +2
Pulsar timing arrays have recently observed a stochastic gravitational wave background at nano-Hertz frequencies. This raises the question whether the signal can be of primordial o…
Dark Matter Heating of Compact Stars Beyond Capture: A Relativistic Framework for Energy Deposition by Particle Beams
Jaime Hoefken Zink, Shihwen Hor, Maura E. Ramirez-Quezada
Compact astrophysical objects, such as neutron stars and white dwarfs, can act as detectors of energetic particle fluxes originating from astrophysical accelerators. While most exi…
Insights on the Scale of Leptogenesis from Neutrino Masses and Neutrinoless Double-Beta Decay
Alessandro Granelli, Koichi Hamaguchi, Maura E. Ramirez-Quezada +3
We revisit the thermal leptogenesis scenario in the type-I seesaw framework featuring three heavy Majorana neutrinos with a hierarchical mass spectrum. We focus on low energy obser…
Dark Matter Interactions in White Dwarfs: A Multi-Energy Approach to Capture Mechanisms
Jaime Hoefken Zink, Shihwen Hor, Maura E. Ramirez-Quezada
White dwarfs offer a compelling avenue for probing interactions of dark matter particles, particularly in the challenging sub-GeV mass regime. The constraints derived from these ce…
Single pion resonant production in BSM scenarios: cross sections and amplitudes
Jaime Hoefken Zink, Maura E. Ramirez-Quezada
We present a comprehensive theoretical framework describing single pion resonant production through inelastic dark fermion-nucleon interactions mediated by resonances in the GeV-sc…