63 citations · 183 across the 13 of their papers we have counts for
14 papers
Sterile Neutrino Dark Matter Cries for GeV Heavy Neutral Leptons
Marco Drewes, Yannis Georis, Juraj Klarić +2
The ordinary and dark matter in the Universe may share a common origin in the framework of a minimal extension of the Standard Model by three right-handed neutrinos. A pair of such…
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…
ECFA Higgs, electroweak, and top Factory Study
H. Abidi, J. A. Aguilar-Saavedra, S. Airen +373
The ECFA Higgs, electroweak, and top Factory Study ran between 2021 and 2025 as a broad effort across the experimental and theoretical particle physics communities, bringing togeth…
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…
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…
Recent developments in testable leptogenesis
Yannis Georis
Low-scale leptogenesis is an attractive explanation for the observed baryon asymmetry of our universe that can be tested at a variety of laboratory experiments. In these proceeding…
Upper Bound on Thermal Gravitational Wave Backgrounds from Hidden Sectors
Marco Drewes, Yannis Georis, Juraj Klaric +1
Hot viscous plasmas unavoidably emit a gravitational wave background, similar to electromagnetic black body radiation. We study the contribution from hidden particles to the diffus…
Parameter space for testable leptogenesis
Yannis Georis
Extending the Standard Model with right-handed neutrinos provides a minimal explanation for both light neutrino masses (through the type-I seesaw mechanism) and the baryon asymmetr…
Low-scale leptogenesis with flavour and CP symmetries
Marco Drewes, Yannis Georis, Claudia Hagedorn +1
We consider a type-I seesaw framework with a flavour symmetry from the series of non-abelian groups and and a CP symmetry. Breaking these symmetries non-trivi…
Mapping the viable parameter space for testable leptogenesis
Marco Drewes, Yannis Georis, Juraj Klarić
We for the first time map the range of active-sterile neutrino mixing angles in which leptogenesis is possible in the type I seesaw model with three heavy neutrinos with Majorana m…