29 citations · 128 across the 20 of their papers we have counts for
6 papers · 1 filter
Vector Dark Matter from Extra Dimensions
Arturo de Giorgi, Stefan Vogl
In this work, we propose a new natural dark matter candidate: Kaluza-Klein towers of vectors from extra-dimensional models. Their naturalness follows from two key feature…
The Dark Dimension and Majorana Neutrinos
Arturo de Giorgi, Dhruv Pasari
Recent developments in the Swampland program motivate the existence of a mesoscopic Dark Dimension of size m with bulk Majorana fermions in the keV range. Motivate…
Stochastic Tsunamis: Diffuse Scalar Background from Black Hole Formation
Arturo de Giorgi, Joerg Jaeckel
Massive astrophysical objects can source huge static configurations of a scalar field. When such an object ends up forming a black hole, for instance, via a core-collapse supernova…
LHC Constraints on Resonant Kaluza-Klein Gravitons
Arturo de Giorgi, Matteo Marcoli, Federico Silvetti
The signature prediction of extra-dimensional theories is the appearance of a tower of massive gravitons. In this work, we study the constraints on resonant heavy spin-2 particles…
Thermal Metastable Strings in One-Scale Models and Gravitational Waves
Arturo de Giorgi, James Ingoldby, Valentin V. Khoze +1
Metastable cosmic strings provide a cosmological interpretation of the nanohertz stochastic gravitational wave background reported by Pulsar Timing Array (PTA) experiments. We revi…
The Majoron Cosmological Window: Dark Matter and Thermal Leptogenesis
Arturo de Giorgi, Daniel Naredo-Tuero, Xavier Ponce Díaz
The majoron is the Nambu-Goldstone boson associated with the spontaneous breaking of a global symmetry. Remarkably, the minimal majoron framework can simultaneously address t…