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DTSTART:20180325T010000
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DTSTART:20181028T010000
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BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20181018T170000
DTEND;TZID=Europe/Rome:20181018T180000
DTSTAMP:20260920T121442
CREATED:20181005T184831Z
LAST-MODIFIED:20181025T191641Z
UID:13524-1539882000-1539885600@w3.lnf.infn.it
SUMMARY:Searching for Axions in the Lab and in the Cosmo
DESCRIPTION:Axions and axion-like particles are excellent dark matter candidates\, spanning a vast range of mass scales from the milli- and micro-eV for the QCD axion\, to 1E-22 eV for ultralight axions in string theory. In some scenarios\, inhomogeneities in the axion density lead to the formation of compact structures known as axion “miniclusters” and axion stars. I will first discuss astrophysical and cosmological constraints on axions at either end of this spectrum\, using data from the cosmic microwave background anisotropies and the effects of miniclusters on the gravitational microlensing and on direct detection. I will then assess the formation and the evolution of axion stars in various astrophysical regimes.
URL:/event/searching-for-axions-in-the-lab-and-in-the-cosmo/
LOCATION:Aula Seminari\, Via Enrico Fermi\, 40\, Frascati\, Roma\, 00044\, Italia
CATEGORIES:Seminari teorici
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