20 citations · 20 across the 4 of their papers we have counts for
9 papers · 1 filter
Thermal effects on Dark Matter production during cosmic reheating
Marco Drewes, Yannis Georis, Mubarak A. S. Mohammed +1
The relic abundance of Dark Matter (DM) produced via thermal freeze-in is sensitive to the thermal history during and after cosmic reheating. In minimal models, this opens up the p…
Testable Inverse Seesaw Motivated from a High Quality QCD Axion
Yannis Georis, Jie Sheng, Salvador Urrea +1
The QCD axion remains one of the most compelling solutions to the strong CP problem. Meanwhile, the type-I seesaw mechanism offers an elegant explanation for the lightness of the o…
Low-scale seesaw with flavour and CP symmetries $\unicode{x2013}$ from colliders to leptogenesis
Marco Drewes, Yannis Georis, Claudia Hagedorn +1
We consider an extension of the Standard Model with three right-handed neutrinos, endowed with a flavour symmetry , or , , and CP.…
Towards a precision calculation of in the Standard Model IV: Estimating the impact of positronium formation
Tobias Binder, Marco Drewes, Yannis Georis +3
We present a first assessment of how the previously unexplored effect of positronium formation can impact on the value of the effective number of neutrino species in the Standard M…
On the collider-testability of the type-I seesaw model with 3 right-handed neutrinos
Marco Drewes, Yannis Georis, Juraj Klarić +1
If any heavy neutral leptons are discovered in accelerator-based experiments, key questions will involve their possible connection to neutrino masses or leptogenesis. Working in a…
Confronting the low-scale seesaw and leptogenesis with neutrinoless double beta decay
J. de Vries, M. Drewes, Y. Georis +2
We revisit the impact of heavy neutrinos with masses in the MeV-GeV range on neutrinoless double beta decay () in view of updated results for the lifetime of this process. Wo…