Direct Detection of the Cosmic Neutrino Background Including Light Sterile Neutrinos

Details Direct Detection of the Cosmic Neutrino Background Including Light Sterile Neutrinos Direct Detection of the Cosmic Neutrino Background Including Light Sterile Neutrinos

2010-07-06

arxiv.org/abs/1007.0914v2

Physics Letters B 692 (2010), pp. 261-267

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

Minor changes. Accepted for publication in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2010.07.055

Current cosmological data drop an interesting hint about the existence of sub-eV sterile neutrinos, which should be a part of the cosmic neutrino background (C$\nu$B). We point out that such light sterile neutrinos may leave a distinct imprint on the electron energy spectrum in the capture of relic electron neutrinos by means of radioactive beta-decaying nuclei. We examine possible signals of sterile neutrinos relative to active neutrinos, characterized by their masses and sensitive to their number densities, in the reaction $\nu^{}_e + ~^3{\rm H} \to ~^3{\rm He} + e^-$ against the corresponding tritium beta decay. We stress that this kind of direct laboratory detection of the C$\nu$B and its sterile component might not be hopeless in the long term.

Affiliated with

Also associated with

No associations

Rating

Direct Detection of the Cosmic Neutrino Background Including Light Sterile Neutrinos 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 Direct Detection of the Cosmic Neutrino Background Including Light Sterile Neutrinos, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct Detection of the Cosmic Neutrino Background Including Light Sterile Neutrinos will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-216867