7 keV sterile neutrino dark matter from split flavor mechanism

@article{Ishida20147KS,
  title={7 keV sterile neutrino dark matter from split flavor mechanism},
  author={Hiroyuki Ishida and Kwang Sik Jeong and Fuminobu Takahashi},
  journal={Physics Letters B},
  year={2014},
  volume={732},
  pages={196-200}
}

Figures from this paper

7 keV sterile neutrino dark matter in U(1)R-lepton number model
A bstractWe study the phenomenology of a keV sterile neutrino in a supersymmetric model with U(1)R-lepton number in the light of a very recent observation of an X-ray line signal at around 3.5 keV,
A fresh look at keV sterile neutrino dark matter from frozen-in scalars
A bstractSterile neutrinos with a mass of a few keV can serve as cosmological warm dark matter. We study the production of keV sterile neutrinos in the early universe from the decay of a frozen-in
3.5 keV x-ray line from decaying gravitino dark matter
Extremely weakly interacting particles like the gravitino may be stable enough on cosmological time scales to constitute a good dark matter candidate even in the presence of R-parity violation. We
SUSY in the sky or a keV signature of sub-GeV gravitino dark matter
We point out that recently discovered 3.5-keV line in x-ray spectra from various galaxy clusters and the Andromeda galaxy can be naturally explained by physics of a sector responsible for spontaneous
7 keV Scalar Dark Matter and the Anomalous Galactic X-ray Spectrum
We present a simple model for a 7 keV scalar dark matter particle which also explains the recently reported anomalous peak in the galactic X-ray spectrum at 3.55 keV in terms of its two photon decay.
Anomalous X-ray galactic signal from 7.1 keV spin-3/2 dark matter decay
In order to explain the recently reported peak at 3.55 keV in the galactic X-ray spectrum, we propose a simple model. In this model, the Standard Model is extended by including a neutral spin-3/2
Study of Particle Physics Models with Implication to Neutrino Mass and Dark Matter Phenomenology in Light of Recent Data
The presence of a mysterious form of matter constituting 26.8% of the total energy budget of the present universe, is confirmed indirectly by, rotational velocity of spiral galaxies, gravitational
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 46 REFERENCES
Sterile neutrino dark matter in B - L extension of the standard model and galactic 511-keV line
Sterile right-handed neutrinos can be naturally embedded in a low scale gauged U(1)B?L extension of the standard model. We show that, within a low reheating scenario, such a neutrino is an
Dark-matter sterile neutrinos in models with a gauge singlet in the Higgs sector
Sterile neutrino with mass of several keV can be the cosmological dark matter, can explain the observed velocities of pulsars, and can play an important role in the formation of the first stars. We
Masses of active neutrinos in the νMSM from x-ray astronomy
In an extension of the Standard Model by three relatively light right-handed neutrinos (the νMSM model) the role of the dark matter particle is played by the lightest sterile neutrino. We demonstrate
The Role of Sterile Neutrinos in Cosmology and Astrophysics
We present a comprehensive overview of an extension of the Standard Model that contains three right-handed (sterile) neutrinos with masses below the electroweak scale [the Neutrino Minimal Standard
MeV sterile neutrinos in low reheating temperature cosmological scenarios
It is commonly assumed that the cosmological and astrophysical bounds on the mixings of sterile with active neutrinos are much more stringent than those obtained from laboratory measurements. We
...
1
2
3
4
5
...