Big Bang Nucleosynthesis in the presence of sterile neutrinos with altered dispersion relations

Abstract

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.

arXiv comment15 pages, 7 figures

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Cited by in corpus (4)

• Sterile neutrinos with altered dispersion relations revisited
• Effects of sterile neutrino and extra-dimension on big bang nucleosynthesis
• Sterile Neutrino Shortcuts in Asymmetrically Warped Extra Dimensions
• Light Sterile Neutrinos in the Early Universe: Effects of Altered Dispersion Relations and a coupling to Axion-Like Dark Matter