Journal of High Energy Physics (Nov 2021)

Correlated gravitational wave and microlensing signals of macroscopic dark matter

  • Danny Marfatia,
  • Po-Yan Tseng

DOI
https://doi.org/10.1007/JHEP11(2021)068
Journal volume & issue
Vol. 2021, no. 11
pp. 1 – 16

Abstract

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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 −12 M ⊙ ≲ M FB ≲ 10 −5 M ⊙, 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.

Keywords