Coherent Active-Sterile Neutrino Flavor Transformation in the Early Universe
Phys.Rev.Lett. 97 (2006) 141301 We solve the problem of coherent Mikheyev-Smirnov-Wolfenstein (MSW) resonant active-to-sterile neutrino flavor conversion driven by an initial lepton number in the early universe. We find incomplete destruction of lepton number in this process and a sterile neutrino e...
Saved in:
Main Authors | , , |
---|---|
Format | Journal Article |
Language | English |
Published |
17.07.2006
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Phys.Rev.Lett. 97 (2006) 141301 We solve the problem of coherent Mikheyev-Smirnov-Wolfenstein (MSW) resonant
active-to-sterile neutrino flavor conversion driven by an initial lepton number
in the early universe. We find incomplete destruction of lepton number in this
process and a sterile neutrino energy distribution with a distinctive cusp and
high energy tail. These features imply alteration of the non-zero lepton number
primordial nucleosynthesis paradigm when there exist sterile neutrinos with
rest masses ~ 1 eV. This could result in better light element probes of
(constraints on) these particles. |
---|---|
DOI: | 10.48550/arxiv.astro-ph/0607403 |