4 papers
Small-scale Cosmic Signatures of Feebly Interacting Massive Particles
Patrick Hager, Alexis Kassiteridis
Feebly Interacting Massive Particles (FIMPs), if they exist, should be notoriously difficult to detect even indirectly. In order to constrain them, we derive bounds for feeble theo…
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…
Small-scale structure from neutron dark decay
Georgios K. Karananas, Alexis Kassiteridis
It was recently proposed that the disagreement in the experimental measurements of the lifetime of the neutron might be eradicated if the neutron decays to particles responsible fo…