Cosmology Based on f(R) Gravity Admits 1 eV Sterile Neutrinos
Abstract
It is shown that the tension between recent neutrino oscillation experiments, favoring sterile neutrinos with masses of the order of 1 eV, and cosmological data which impose stringent constraints on neutrino masses from the free streaming suppression of density fluctuations, can be resolved in models of the present accelerated expansion of the Universe based on f(R) gravity.
- Publication:
-
Physical Review Letters
- Pub Date:
- March 2013
- DOI:
- arXiv:
- arXiv:1203.6828
- Bibcode:
- 2013PhRvL.110l1302M
- Keywords:
-
- 98.80.Es;
- 04.50.Kd;
- 14.60.St;
- 95.36.+x;
- Observational cosmology;
- Modified theories of gravity;
- Non-standard-model neutrinos right-handed neutrinos etc.;
- Dark energy;
- Astrophysics - Cosmology and Extragalactic Astrophysics;
- High Energy Physics - Phenomenology;
- High Energy Physics - Theory
- E-Print:
- 5 pages, 3 figures, matches the published version in Phys. Rev. Lett