Asymmetric dark matter, baryon asymmetry and lepton number violation
arXiv:1801.09314 · doi:10.1016/j.physletb.2018.05.043
Abstract
We study the effect of lepton number violation (LNV) on baryon asymmetry, generated in the early Universe, in the presence of a dark sector with a global symmetry , featuring asymmetric dark matter (ADM). We show that in general LNV, observable at the LHC or in neutrinoless double beta decay experiments, cannot wash out a baryon asymmetry generated at higher scales, unlike in scenarios without such dark sector. An observation of LNV at the TeV scale may thus support ADM scenarios. Considering several models with different types of dark matter (DM), we find that the DM mass is of the order of a few GeV or below in our scenario.
12 pages, 1 figure
References in corpus (20)
- Leptogenesis
- Asymmetric Dark Matter
- From the trees to the forest: a review of radiative neutrino mass models
- Dark Matter from new Technicolor Theories
- Ultra Minimal Technicolor and its Dark Matter TIMP
- Multi-Component Dark Matter
- Neutrinoless Double-Beta Decay: a Probe of Physics Beyond the Standard Model
- A Survey of Lepton Number Violation Via Effective Operators
- Strong Interactive Massive Particles from a Strong Coupled Theory
- Dark Discrete Gauge Symmetries
- ARS Leptogenesis
- Neutrinoless Double Beta Decay and the Baryon Asymmetry of the Universe
- Multiple dark matter scenarios from ubiquitous stringy throats
- Multicomponent Dark Matter from Gauge Symmetry
- A UV complete partially composite-pNGB Higgs
- UV complete composite Higgs models
- Status of rates and rate equations for thermal leptogenesis
- CP Violation in the Lepton Sector and Implications for Leptogenesis
- On the direct detection of multi-component dark matter: sensitivity studies and parameter estimation
- A partially composite Goldstone Higgs