Breakdown of Hawking Evaporation opens new Mass Window for Primordial Black Holes as Dark Matter Candidate

Abstract

The energy injection through Hawking evaporation has been used to put strong constraints on primordial black holes as a dark matter candidate at masses below $10^{17}\mathrm{g}$. However, Hawking's semiclassical approximation breaks down at latest after half-decay. Beyond this point, the evaporation could be significantly suppressed, as was shown in recent work. In this study, we review existing cosmological and astrophysical bounds on primordial black holes, taking this effect into account. We show that the constraints disappear completely for a reasonable range of parameters, which opens a new window below $10^{10}\mathrm{g}$ for light primordial black holes as a dark matter candidate.

9 pages, 5 figures, published in MNRAS

References in corpus (22)

• An Introduction to PYTHIA 8.2
• The spectrum of isotropic diffuse gamma-ray emission between 100 MeV and 820 GeV
• CMB Constraints on WIMP Annihilation: Energy Absorption During the Recombination Epoch
• Cosmological constraints on exotic injection of electromagnetic energy
• Measurement of ultra-high-energy diffuse gamma-ray emission of the Galactic plane from 10 TeV to 1 PeV with LHAASO-KM2A
• PBH formation from spherically symmetric hydrodynamical perturbations: a review
• The synergy between CMB spectral distortions and anisotropies
• Breakdown of Hawking Evaporation opens new Mass Window for Primordial Black Holes as Dark Matter Candidate
• Primordial black hole constraints with Hawking radiation -- a review
• Dark matter and dark radiation from evaporating Kerr primordial black holes
• Strong constraints on primordial black hole dark matter from 16 years of INTEGRAL/SPI observations
• Thermalization of large energy release in the early Universe
• 21-cm constraints on spinning primordial black holes
• Constraining Primordial Black Hole Fraction at the Galactic Centre using radio observational data
• Primordial Black Hole Baryogenesis
• Quasi-extremal primordial black holes are a viable dark matter candidate
• Vortices in Black Holes
• Revisiting the constraints on primordial black hole abundance with the isotropic gamma ray background
• The Timescales of Quantum Breaking
• The $H_0$ tension alleviated through ultra-light primordial black holes: an information insight through gravitational waves
• Vortex Effects in Merging Black Holes and Saturons
• Extremal Kerr Black Hole Dark Matter from Hawking Evaporation

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• Breakdown of Hawking Evaporation opens new Mass Window for Primordial Black Holes as Dark Matter Candidate
• Primordial regular black holes as all the dark matter. II. Non-time-radial-symmetric and loop quantum gravity-inspired metrics
• Primordial regular black holes as all the dark matter. I. Time-radial-symmetric metrics
• Quantum effects on the evaporation of PBHs: contributions to dark matter
• Probing modified Hawking evaporation with gravitational waves from the primordial black hole dominated universe
• 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
• Induced Gravitational Waves probing Primordial Black Hole Dark Matter with Memory Burden
• Beyond Hawking evaporation of black holes formed by dark matter in compact stars
• Gravitational waves from burdened primordial black holes dark matter
• Impact of memory-burdened black holes on primordial gravitational waves in light of Pulsar Timing Array
• Quantum loop corrections in the modified gravity model of Starobinsky inflation with primordial black hole production
• Primordial black holes: constraints, potential evidence and prospects
• High-energy gamma-ray emission from memory-burdened primordial black holes
• Impact of memory-burdened primordial black holes on high-scale leptogenesis
• Neutrinos from Primordial Black Holes in Theories with Extra Dimensions
• Stronger Constraints on Primordial Black Holes as Dark Matter Derived from the Thermal Evolution of the Intergalactic Medium over the Last Twelve Billion Years
• Primordial regular black holes as all the dark matter. III. Covariant canonical quantum gravity models
• Hunting Primordial Black Hole Dark Matter in Lyman-$\alpha$ Forest
• Primordial Black Holes in the Solar System
• Can a Breakdown of Hawking Evaporation Open a New Mass Window for Primordial Black Holes as Dark Matter?
• Primordial black holes save $R^2$ inflation
• Improved model of large-field inflation with primordial black hole production in Starobinsky-like supergravity
• Revisiting PBH accretion, evaporation and their cosmological consequences
• Immortality through the dark forces: Dark-charge primordial black holes as dark matter candidates
• Similarities in the evaporation of saturated solitons and black holes
• Dust stars in the minimal exponential measure model
• UV Effects and Short-Lived Hawking Radiation: Alternative Resolution of Information Paradox
• Memory burden effect of regular primordial black holes
• Gamma rays as leptonic portals to energetic neutrinos: a new Monte Carlo approach
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• Primordial Black Holes: A Review of Formation and Evolution
• Consistent Canonical Quantization of Gravity: Recovery of Classical GR from BRST-invariant Coherent States