Formation of primordial black holes in an axionlike curvaton model
  We performed the detailed analysis of the primordial black hole (PBH)
formation mechanism in an axionlike curvaton model with a coupling to inflaton.
The phase direction of the complex scalar works as a curvaton and produces
enough PBHs to explain the black hole binaries ($\sim 30 M_{\odot}$) observed
in the LIGO-Virgo Collaboration or PBHs as dark matter (DM) ($\sim 10^{-12}
M_{\odot}$). We examine whether our model satisfies the current constraints on
the PBH mass spectrum, the curvature perturbation and the secondarily produced
gravitational waves. We also take into account ambiguity about the choice of
the window functions and effect of the non-Gaussianity.
