Can decaying particles raise the upperbound on the Peccei-Quinn scale?
نویسندگان
چکیده
منابع مشابه
Can Decaying Particles Raise the Upperbound on the Peccei-Quinn Scale?
We have reexamine the effect of entropy production on the cosmic axion density and find that the Peccei-Quinn scale Fa larger than about 10 15 GeV is not allowed even if large entropy is produced by the decays of coherent oscillations or nonrelativistic massive particles. We stress that this result is independent of the details of models for the decaying particles.
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1996
ISSN: 0370-2693
DOI: 10.1016/0370-2693(96)00743-5