Abstract
Fermion dark matter particles can aggregate to form extended dark matter structures via a first-order phase transition in which the particles get trapped in the false vacuum. We study Fermi balls created in a phase transition induced by a generic quartic thermal effective potential. We show that for Fermi balls of mass, 3 × 10−12M⊙ ≲ MFB ≲ 10−5M⊙, correlated observations of gravitational waves produced during the phase transition (at SKA/THEIA/μAres), and gravitational microlensing caused by Fermi balls (at Subaru-HSC), can be made.
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Marfatia, D., Tseng, PY. Correlated gravitational wave and microlensing signals of macroscopic dark matter. J. High Energ. Phys. 2021, 68 (2021). https://doi.org/10.1007/JHEP11(2021)068
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DOI: https://doi.org/10.1007/JHEP11(2021)068