2024
DOI: 10.1088/1475-7516/2024/04/047
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A cosmological sandwiched window for lepton-number breaking scale

Shao-Ping Li,
Bingrong Yu

Abstract: A singlet majoron can arise from the seesaw framework as a pseudo-Goldstone boson when the heavy Majorana neutrinos acquire masses via the spontaneous breaking of global U(1) L symmetry. The resulting cosmological impacts are usually derived from the effective majoron-neutrino interaction, and the majoron abundance is accumulated through the freeze-in neutrino coalescence. However, a primordial majoron abundance can be predicted in a minimal setup and lead to distincti… Show more

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Cited by 3 publications
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