Constraints on active-sterile neutrino mixing from primordial abundances

Details Constraints on active-sterile neutrino mixing from primordial abundances Constraints on active-sterile neutrino mixing from primordial abundances

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011phrvc..84f5803m&link_type=abstract

Physical Review C, vol. 84, Issue 6, id. 065803

Physics

Big Bang Nucleosynthesis, Neutrino Mass And Mixing, Origin, Formation, And Abundances Of The Elements

Scientific paper

Starting from the calculation of the neutrino distribution function, as a function of the active-sterile neutrino mixing parameters, we calculate primordial abundances of light nuclei (D, 4He, and 7Li) using a modified version of Kawano’s code. The active-sterile neutrino mixing parameters and the baryon-to-photon ratio (ηB) enter the calculation as free parameters. By using the observational data of D, 4He, and 7Li, we set constraints on ηB and on the active-sterile neutrino mixing parameters. It is found that the value for the baryon-to-photon ratio depends strongly on the inclusion of 7Li data in the sample, while the value for the mixing angles remain small.

Affiliated with

Also associated with

No associations

Rating

Constraints on active-sterile neutrino mixing from primordial abundances 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 active-sterile neutrino mixing from primordial abundances, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constraints on active-sterile neutrino mixing from primordial abundances will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1438768