10 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…
Warm Inflation with the Standard Model
Kim V. Berghaus, Marco Drewes, Sebastian Zell
We show for the first time that warm inflation is feasible with Standard Model (SM) gauge interactions alone. Our model consists of a minimal extension of the SM by a single scalar…
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…
Towards a precision calculation of in the Standard Model III: Improved estimate of NLO contributions to the collision integral
Marco Drewes, Yannis Georis, Michael Klasen +2
We compute the dominant QED correction to the neutrino-electron interaction rate in the vicinity of neutrino decoupling in the early universe, and estimate its impact on the effect…