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hep-ph2025
A Limit on the Total Lepton Number in the Universe from BBN and the CMB
Valerie Domcke, Miguel Escudero, Mario Fernandez Navarro +1
At temperatures below the QCD phase transition, any substantial lepton number in the Universe can only be present within the neutrino sector. In this work, we systematically explor…
hep-ph2025★ 10 cited
Lepton Flavor Asymmetries: from the early Universe to BBN
Valerie Domcke, Miguel Escudero, Mario Fernandez Navarro +1
Large primordial lepton flavor asymmetries with almost vanishing total baryon-minus-lepton number can evade the usual BBN and CMB constraints if neutrino oscillations lead to perfe…