Limits on light primordial black holes from high-scale leptogenesis

Abstract

We investigate the role that the evaporation of light primordial black holes may have played in the production of the baryon asymmetry of the Universe through the high-scale leptogenesis. In particular, for mass of primordial black hole in the range [$10^6$-$10^9$] g, we find a dilution of thermally generated lepton asymmetry via entropy injection in the primordial plasma after the sphaleron freeze-out. As a consequence, we can put strong constraints on the primordial black hole parameters, showing the mutual exclusion limits between primordial black holes and high-scale leptogenesis. Remarkably, we point out an interplay between the upper bound on the initial abundance of primordial black holes and the active neutrino mass scale.

11 pages, 6 figures

References in corpus (15)

• Primordial Black Holes as Dark Matter
• Leptogenesis
• Cosmic microwave background limits on accreting primordial black holes
• The Sphaleron Rate in the Minimal Standard Model
• Primordial black hole dark matter from single field inflation
• CMB bounds on disk-accreting massive Primordial Black Holes
• Gravitational Wave signatures of inflationary models from Primordial Black Hole Dark Matter
• Cosmological constraints on exotic injection of electromagnetic energy
• Leptogenesis in the Universe
• Baryogenesis from Hawking Radiation
• CP violation in scatterings, three body processes and the Boltzmann equations for leptogenesis
• Primordial Gravitational Waves From Black Hole Evaporation in Standard and Non-Standard Cosmologies
• An introduction to leptogenesis and neutrino properties
• Cosmological implications of Primordial Black Holes
• Electroweak phase transition and entropy release in the early universe

Cited by in corpus (16)

• Quantum effects on the evaporation of PBHs: contributions to dark matter
• Memory burden effect mimics reheating signatures on SGWB from ultra-low mass PBH domination
• Ultralight Black Holes as Sources of High-Energy Particles
• Light burden of memory: Constraining primordial black holes with high-energy neutrinos
• Primordial black hole versus inflaton
• Superradiant Leptogenesis
• High-Energy and Ultra-High-Energy Neutrinos from Primordial Black Holes
• Impact of memory-burdened black holes on primordial gravitational waves in light of Pulsar Timing Array
• Cosmological Origin of the KM3-230213A event and associated Gravitational Waves
• Impact of memory-burdened primordial black holes on high-scale leptogenesis
• High-energy gamma-ray emission from memory-burdened primordial black holes
• Primordial Black Holes Evaporating before Big Bang Nucleosynthesis
• Gravothermalizing into primordial black holes, boson stars, and cannibal stars
• Gravitational Wave Signatures of Primordial Black Hole Reheating in Upcoming Interferometry Missions
• Leptogenesis assisted by scalar decays
• Neutrino Emission and Plasma Heating from Primordial Black Holes: An Improved Approach to $N_{\mathrm{eff}}$ Constraints