Cosmology with Ultralight Pseudo Nambu-Goldstone Bosons
نویسندگان
چکیده
منابع مشابه
Cosmology with ultralight pseudo Nambu-Goldstone bosons.
We explore the cosmological implications of an ultra-light pseudo-Nambu-Goldstone boson. With global spontaneous symmetry breaking scale f ' 10 18 GeV and explicit breaking scale comparable to MSW neutrino masses, M 10 3 eV, such a eld, which acquires a mass m M 2 =f H 0 , would have become dynamical at recent epochs and currently dominate the energy density of the universe. The eld acts as an ...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1995
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.75.2077