Primordial black-hole dark matter via warm natural inflation
Miguel Correa (Center for Astrophysics, Department of Physics and Astronomy, University of Notre Dame, Notre Dame, USA); Mayukh R. Gangopadhyay (Centre For Cosmology and Science Popularization (CCSP), SGT University, Gurugram, India); Nur Jaman (Department of Physical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, India)
; Grant J. Mathews (Center for Astrophysics, Department of Physics and Astronomy, University of Notre Dame, Notre Dame, USA)
We report on a study of the natural warm inflationary paradigm (WNI). We show two important new results arise in this model. One is that the observational constraints on the primordial power spectrum from the cosmic microwave background (CMB) can be satisfied without going beyond the Planck scale of the effective field theory. The second is that WNI can inevitably provide perfect conditions for the production of primordial black holes (PBHs) in the golden window of black-hole mass range () where it can account for all of the dark matter content of the universe while satisfying observational constraints.
