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Searching for Axions in the Lab and in the Cosmo

Mr. Luca Visinelli (Stockholm University & Nordita)

18 ottobre @ 17:00 - 18:00

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.

Dettagli

Data:
18 ottobre
Ora:
17:00 - 18:00
Categoria Evento:
Target:
Sito web:
http://agenda.infn.it/conferenceDisplay.py?confId=16940

Luogo

Aula Seminari
Via Enrico Fermi, 40
Frascati, Roma 00044 Italia