Big Bang Nucleosynthesis in the presence of sterile neutrinos with altered dispersion relations
classification
✦ hep-ph
astro-ph.COnucl-th
keywords
sterilealteredbangboundsdispersionlightneutrinosnucleosynthesis
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Big Bang Nucleosynthesis imposes stringent bounds on light sterile neutrinos mixing with the active flavors. Here we discuss how altered dispersion relations can weaken such bounds and allow compatibility of new sterile neutrino degrees of freedom with a successful generation of the light elements in the early Universe.
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