Constraints on massive sterile plus active neutrino species in non minimal cosmologies

Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

8 pages, 5 figures

Scientific paper

Cosmological measurements are affected by the energy density of both active and sterile massive neutrinos. We extend here a recent analysis of current cosmological data to non minimal cosmologies. Several possible scenarios are examined: a constant w \neq -1 dark energy equation of state, a non flat universe, a time varying dark energy component and coupled dark matter dark energy universes or modified gravity scenarios. When considering cosmological data only, (3+2) massive neutrino models with ~0.5 eV sterile species are allowed at 95% CL. This scenario has been shown to reconcile reactor, LSND and MiniBooNE positive signals with null results from other searches. Big Bang Nucleosynthesis bounds could compromise the viability of (3+2) models if the two sterile species are fully thermalized states at decoupling.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Constraints on massive sterile plus active neutrino species in non minimal cosmologies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Constraints on massive sterile plus active neutrino species in non minimal cosmologies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constraints on massive sterile plus active neutrino species in non minimal cosmologies will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-56225

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.