Speaker
Geoff Beck
(University of the Witwatersrand)
Description
With the WIMP parameter space slowly being ruled out by experiments on all fronts, axions have become a highly studied alternative dark matter candidate. In this talk we present a particle physics model where the pion states of a dark copy of QCD have both axion and dilaton phenomenologies. This model allows for the formation of dilute axion stars over a far larger parameter space than allowed in typical axion models. We explore whether such a model could be detected via FRB-like emissions associated with stable axion star mergers, these have unique broad spectra (rather than axion lines). We demonstrate that strong detection prospects exist for these events with both MeerKAT and upcoming experiments like the SKA and ngVLA.
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Primary author
Geoff Beck
(University of the Witwatersrand)
Co-authors
Mr
Santiago Loane
(University of Illinois Urbana-Champaign)
Prof.
Stephon Alexander
(Brown University)
Dr
Tucker Manton
(University of Chinese Academy of Sciences)
