@article{TEXTUAL,
      recid = {12167},
      author = {Hooper, Dan and Krnjaic, Gordan},
      title = {GUT baryogenesis with primordial black holes},
      journal = {Physical Review D},
      address = {2021-02-01},
      number = {TEXTUAL},
      abstract = {In models of baryogenesis based on grand unified theories  (GUTs), the baryon asymmetry of the Universe is generated  through the CP and baryon number violating,  out-of-equilibrium decays of very massive gauge or Higgs  bosons in the very early Universe. Recent constraints on  the scale of inflation and the subsequent temperature of  reheating, however, have put pressure on many such models.  In this paper, we consider the role that primordial black  holes may have played in the process of GUT baryogenesis.  Through Hawking evaporation, black holes can efficiently  generate GUT Higgs or gauge bosons, regardless of the  masses of these particles or the temperature of the early  Universe. Furthermore, in significant regions of parameter  space, the black holes evaporate after the electroweak  phase transition, naturally evading the problem of  sphaleron washout that is normally encountered in GUT  models based on SU(5). We identify a wide range of  scenarios in which black holes could facilitate the  generation of the baryon asymmetry through the production  and decays of GUT bosons.},
      url = {http://knowledge.uchicago.edu/record/12167},
}