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Dark matter axions in models of string cosmology

✍ Scribed by Ram Brustein; Merav Hadad


Book ID
108439984
Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
80 KB
Volume
442
Category
Article
ISSN
0370-2693

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We discuss the possible sources of dark matter axions in the early universe. In the standard thermal scenario, an axion string network forms at the Peccei-Quinn phase transition T~fa and then radiatively decays into a cosmological background of axions; to be the dark matter, these axions must have a