181 citations · 855 across the 20 of their papers we have counts for
21 papers · 1 filter
Probing SMEFT at Belle II with displaced dilepton vertices
Patrick D. Bolton, Fabian Esser, Lukáš Gráf +3
The existence of right-handed (RH) neutrinos is strongly motivated by the observation of small neutrino masses and as a means to shed light on the origin of parity violation in the…
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.…
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…
Feebly Interacting Particles: FIPs 2022 workshop report
C. Antel, M. Battaglieri, J. Beacham +75
Particle physics today faces the challenge of explaining the mystery of dark matter, the origin of matter over anti-matter in the Universe, the origin of the neutrino masses, the a…
Report of the Topical Group on Physics Beyond the Standard Model at Energy Frontier for Snowmass 2021
Tulika Bose, Antonio Boveia, Caterina Doglioni +318
This is the Snowmass2021 Energy Frontier (EF) Beyond the Standard Model (BSM) report. It combines the EF topical group reports of EF08 (Model-specific explorations), EF09 (More gen…
Theories and Experiments for Testable Baryogenesis Mechanisms: A Snowmass White Paper
J. L. Barrow, Leah Broussard, James M. Cline +16
The baryon asymmetry of the Universe is one of the central motivations to expect physics beyond the Standard Model. In this Snowmass white paper, we review the challenges and oppor…
The Present and Future Status of Heavy Neutral Leptons
Asli M. Abdullahi, Pablo Barham Alzas, Brian Batell +42
The existence of non-zero neutrino masses points to the likely existence of multiple SM neutral fermions. When such states are heavy enough that they cannot be produced in oscillat…
An allowed window for heavy neutral leptons below the kaon mass
Kyrylo Bondarenko, Alexey Boyarsky, Juraj Klaric +4
The extension of the Standard Model with two gauge-singlet Majorana fermions can simultaneously explain two beyond-the-Standard-model phenomena: neutrino masses and oscillations, a…
Freeze-in leptogenesis with 3 right-handed neutrinos
Michele Lucente, Asmaa Abada, Giorgio Arcadi +3
We provide the first systematic study of the viable parameter space for leptogenesis in the type-I seesaw model with three right-handed neutrinos whose Majorana masses lie below th…
Low-scale leptogenesis with three heavy neutrinos
Asmaa Abada, Giorgio Arcadi, Valerie Domcke +3
Leptogenesis induced by the oscillations of GeV-scale neutrinos provides a minimal and testable explanation of the baryon asymmetry of the Universe. In this work we extend previous…
Perspectives to find heavy neutrinos with NA62
Marco Drewes, Jan Hajer, Juraj Klaric +1
The sensitivity of beam dump experiments to heavy neutrinos depends on the relative size of their mixings with the lepton flavours in the Standard Model. We study the impact of pre…
Probing the Seesaw Mechanism and Leptogenesis with the International Linear Collider
Stefan Antusch, Eros Cazzato, Marco Drewes +4
We investigate the potential of the International Linear Collider (ILC) to probe the mechanisms of neutrino mass generation and leptogenesis within the minimal seesaw model. Our re…
NA62 sensitivity to heavy neutral leptons in the low scale seesaw model
Marco Drewes, Jan Hajer, Juraj Klaric +1
The sensitivity of beam dump experiments to heavy neutral leptons depends on the relative strength of their couplings to individual lepton flavours in the Standard Model. We study…
Resonant enhancement in leptogenesis
P. S. Bhupal Dev, Mathias Garny, Juraj Klaric +2
Vanilla leptogenesis within the type I seesaw framework requires the mass scale of the right-handed neutrinos to be above 10^9 GeV. This lower bound can be avoided if at least two…
Probing Leptogenesis at Future Colliders
Stefan Antusch, Eros Cazzato, Marco Drewes +4
We investigate the question whether leptogenesis, as a mechanism for explaining the baryon asymmetry of the universe, can be tested at future colliders. Focusing on the minimal sce…
Leptogenesis: Improving predictions for experimental searches
Marco Drewes, Bjorn Garbrecht, Dario Gueter +1
Heavy right handed neutrinos could not only explain the observed neutrino masses via the seesaw mechanism, but also generate the baryon asymmetry of the universe via leptogenesis d…
On the relation between the CP phases in the PMNS matrix, CP-violation with sterile neutrinos and leptogenesis
Marco Drewes, Bjorn Garbrecht, Dario Gueter +1
We discuss the connection between observable CP violation in the lepton sector, the properties of heavy neutrinos and the baryon asymmetry of the universe in the minimal seesaw mod…
Testing the low scale seesaw and leptogenesis
Marco Drewes, Bjorn Garbrecht, Dario Gueter +1
Heavy neutrinos with masses below the electroweak scale can simultaneously generate the light neutrino masses via the seesaw mechanism and the baryon asymmetry of the universe via…
Leptogenesis from Oscillations of Heavy Neutrinos with Large Mixing Angles
Marco Drewes, Bjorn Garbrecht, Dario Gueter +1
The extension of the Standard Model by heavy right-handed neutrinos can simultaneously explain the observed neutrino masses via the seesaw mechanism and the baryon asymmetry of the…
Strong Washout Approximation to Resonant Leptogenesis
Bjorn Garbrecht, Florian Gautier, Juraj Klaric
We show that the effective decay asymmetry for resonant Leptogenesis in the strong washout regime with two sterile neutrinos and a single active flavour can in wide regions of para…
Recovering the chiral critical end-point via delocalization of quark interactions
S. Benic, D. Horvatic, J. Klaric
We show that for the lower branch of the quark condensate and values higher than approximately the chiral critical end-point in the Nambu--Jona-Lasinio m…