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Can active-sterile neutrino oscillations lead to chaotic behavior of the cosmological lepton asymmetry?
Related publications (45)
Low-scale leptogenesis with flavour and CP symmetries
Marco Drewes, Juraj Klaric, Yannis Georis
We consider a type-I seesaw framework endowed with a flavour symmetry, belonging to the series of non-abelian groups increment (3 n(2)) and increment (6 n(2)), and a CP symmetry. Breaking these symmetries in a non-trivial way results in the right-handed ne ...
SPRINGER2022Freeze-in and freeze-out generation of lepton asymmetries after baryogenesis in the nu MSM
The nu MSM an extension of the Standard Model by three relatively light singlet Majorana fermions N-1,N-2,N-3 allows for the generation of lepton asymmetry which is several orders of magnitude larger than the observed baryon asymmetry of the Universe. The ...
IOP Publishing Ltd2022Reconciling resonant leptogenesis and baryogenesis via neutrino oscillations
Right-handed neutrinos offer an elegant solution to two well-established phenomena beyond the Standard Model (SM)-masses and oscillations of neutrinos, as well as the baryon asymmetry of the Universe. It is also a minimalistic solution, since it requires o ...
AMER PHYSICAL SOC2021An allowed window for heavy neutral leptons below the kaon mass
Alexey Boyarsky, Oleg Ruchayskiy, Inar Timiryasov, Kyrylo Bondarenko, Juraj Klaric
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, as well as the origin of the matter-antimatter asymmetry in the Universe. The ...
SPRINGER2021MeV-scale seesaw and leptogenesis
Marco Drewes, Valerie Fiona Domcke, Michele Lucente
We study the type-I seesaw model with three right-handed neutrinos and Majorana masses below the pion mass. In this mass range, the model parameter space is not only strongly constrained by the requirement to explain the light neutrino masses, but also by ...
SPRINGER2021Uniting Low-Scale Leptogenesis Mechanisms
In this Letter we demonstrate that what was previously considered as different mechanisms of baryon asymmetry generation involving two right-handed Majorana neutrinos with masses far below the Grand Unified Theory scale-leptogenesis via neutrino oscillatio ...
AMER PHYSICAL SOC2021Low-scale leptogenesis with three heavy neutrinos
Marco Drewes, Valerie Fiona Domcke, Juraj Klaric, Michele Lucente
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 studies invoking only two heavy neutrinos to the case of three heavy neutri ...
Springer2019Parameter space of baryogenesis in the nu MSM
Inar Timiryasov, Shintaro Eijima
The Standard Model accompanied with two right-handed neutrinos with masses below the weak scale can explain the observed baryon asymmetry of the Universe. Moreover, this model is at least partially testable in the forthcoming experiments such as NA62, SHiP ...
Springer2019The bearable compositeness of leptons
Partial compositeness as a theory of flavor in the lepton sector is assessed. We begin presenting the first systematic analysis of neutrino mass generation in this context, and identifying the distinctive mass textures. We then update the bounds from charg ...
SPRINGER2018Initial condition for baryogenesis via neutrino oscillation
We consider a baryogenesis scenario via the oscillation of right-handed neutrinos with Majorana masses of the order of GeV, which are also responsible for neutrino masses by the seesaw mechanism. We study how the initial condition alters the prediction of ...
Amer Physical Soc2017