306 citations · 2.6k across the 51 of their papers we have counts for
10 papers · 1 filter
Small-scale structure from charged leptophilia
Ottavia Balducci, Stefan Hofmann, Alexis Kassiteridis
We consider a charged leptophilic extension of the Standard Model of particle physics as a minimal dark sector. It accomodates a WIMP paradigm at the TeV-scale that is sufficient t…
Cosmic structure formation in a flavoured U dark sector at small scales
Ottavia Balducci, Stefan Hofmann, Alexis Kassiteridis
In this work we study the footprint of a secluded dark sector with a U gauge symmetry on the formation of cosmic structure at small scales. A single generation of d…
Cosmological singlet diagnostics of neutrinophilic dark matter
Ottavia Balducci, Stefan Hofmann, Alexis Kassiteridis
The standard model of particle physics is extended by adding a purely neutrinophilic dark sector. It is shown that theories which accommodate standard model neutrinos as dark radia…
Thermal decoupling of WIMPs from first principles
Torsten Bringmann, Stefan Hofmann
Weakly interacting massive particles (WIMPs) are arguably the most natural DM candidates from a particle physics point of view. After their number density has frozen out in the ear…
Lorentz invariant ensembles of vector backgrounds
Dennis D. Dietrich, Stefan Hofmann
We consider gauge field theories in the presence of ensembles of vector backgrounds. While Lorentz invariance is explicitely broken in the presence of any single background, here,…
Black Hole Relics in Large Extra Dimensions
Sabine Hossenfelder, Marcus Bleicher, Stefan Hofmann +2
Recent calculations applying statistical mechanics indicate that in a setting with compactified large extra dimensions a black hole might evolve into a (quasi-)stable state with ma…