Speaker
Pablo Martinez-Mirave
(IFIC (CSIC-Univ. Valencia))
Description
We discuss the phenomenology of neutrino decoupling in the early universe, by summarising the details of the calculation in standard and non-standard scenarios. We quickly present the state-of-the-art calculation of the effective number of neutrino species in the early universe (Neff) in the three-neutrino case, which gives Neff=3.044, and show how the result can change when non-standard properties (non-standard interactions, non-unitarity) are considered.
Submitted on behalf of a Collaboration? | No |
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Author
Pablo Martinez-Mirave
(IFIC (CSIC-Univ. Valencia))
Co-author
Dr
Stefano Gariazzo
(INFN Turin)