Primordial black hole evaporation and dark matter production. I. Solely Hawking radiation

Cheek, Andrew; Heurtier, Lucien; Perez-Gonzalez, Yuber F.; Turner, Jessica

doi:10.1103/physrevd.105.015022

Cited by 58 publications

(65 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All particles with masses smaller than T BH can be emitted via Hawking radiation. Within a time interval dt and momentum [p, p + dp], the energy spectrum of an emitted species i with spin s i , mass µ i and internal degrees of freedom g i can be described as [15,63]…”

Section: Schwarzschild Black Holesmentioning

confidence: 99%

“…with the mass evaporation function ε (M BH ) ≡ i g i ε i (z i ), where the contribution per degree of freedom ε i (z i ) is given by [15]…”

Section: Schwarzschild Black Holesmentioning

confidence: 99%

“…It is important to emphasize that these results where obtained using the numerical code developed in Ref. [15,16], including the additional ALP degree of freedom. We have checked that the numerical estimations in Eq.…”

Section: Alp Dark Mattermentioning

confidence: 99%

“…On the contrary, light PBHs could have also been created, and have not a less interesting phenomenology. For example, in their evaporation process they can source particle DM or dark radiation (DR) [5][6][7][8][9][10][11][12][13][14][15][16][17], trigger baryogenesis [18][19][20][21][22], and radiate all new degrees of freedom, such as right-handed neutrinos [23]. Along the same research direction, in this work we focus on phenomenology of QCD axion and axion-like particles (ALPs) in a Universe dominated by PBHs lighter than ∼ 10 9 g, which have fully evaporated before Big Bang nucleosynthesis (BBN).…”

Section: Introductionmentioning

confidence: 99%

“…For the case with an early PBH era, we numerically solve a system of coupled Boltzmann equations for the background (PBHs and SM radiation) based on the code developed in Refs. [15,16], carefully including the greybody factor in PBHs spectra, and considering the effect of the PBH angular momentum. We find an increased allowed parameter space with larger f a or, equivalently, smaller ALP-photon coupling g aγ due to the entropy injection from PBH evaporation.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

ALP Dark Matter in a Primordial Black Hole Dominated Universe

Bernal,

Perez-Gonzalez,

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

We investigate the phenomenological consequences of axion-like particle (ALP) dark matter with an early matter domination triggered by primordial black holes (PBHs). We focus on light BHs with masses smaller than ∼ 10 9 g which fully evaporate before Big Bang nucleosynthesis. We numerically solve the coupled Boltzmann equations, carefully taking the greybody factors and BH angular momentum into account. We find that the entropy injection from PBH evaporation dilutes the ALP relic abundance originally produced via the vacuum misalignment mechanism, opening the parameter space with larger scales f a or, equivalently, smaller ALP-photon couplings g aγ , within the reach of future detectors as ABRACADABRA, KLASH, ADMX, and DM-Radio. Moreover, the ALP minicluster masses can be several orders of magnitude larger if the early Universe features an PBH dominated epoch. For the relativistic ALPs produced directly from Hawking radiation, we find that their contribution to the dark radiation is within the sensitivity of next generation CMB experiments. For the sake of completeness, we also revisit the particular case of the QCD axion.

show abstract

Section: Schwarzschild Black Holesmentioning

confidence: 99%

“…with the mass evaporation function ε (M BH ) ≡ i g i ε i (z i ), where the contribution per degree of freedom ε i (z i ) is given by [15]…”

Section: Schwarzschild Black Holesmentioning

confidence: 99%

Section: Alp Dark Mattermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

ALP Dark Matter in a Primordial Black Hole Dominated Universe

Bernal,

Perez-Gonzalez,

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

Asymptotically‐Flat Black Hole Solutions in Symmergent Gravity

Puliçe,

Pantig,

Övgün

et al. 2024

Fortschritte der Physik

View full text Add to dashboard Cite

Symmergent gravity is an emergent gravity model with an curvature sector and an extended particle sector having new particles beyond the known ones. With constant scalar curvature, asymptotically flat black hole solutions are known to have no sensitivity to the quadratic curvature term (coefficient of ). With variable scalar curvature, however, asymptotically‐flat symmergent black hole solutions turn out to explicitly depend on the quadratic curvature term. In the present work, asymptotically‐flat symmergent black holes with variable scalar curvature are constructed and used its evaporation, shadow, and deflection angle to constrain the symmergent gravity parameters. Concerning their evaporation, new particles predicted by symmergent gravity are found, even if they do not interact with the known particles, can enhance the black hole evaporation rate. Concerning their shadow, statistically significant symmergent effects are reached at the level for the observational data of the Event Horizon Telescope (EHT) on the Sagittarius A* supermassive black hole are shown. Concerning their weak deflection angle, discernible features for the boson‐fermion number differences are revealed, particularly at large impact parameters. These findings hold the potential to serve as theoretical predictions for future observations and investigations on black hole properties.

show abstract

Black hole evaporation beyond the Standard Model of particle physics

Baker

Thamm

2023

J. High Energ. Phys.

View full text Add to dashboard Cite

The observation of an evaporating black hole would provide definitive information on the elementary particles present in nature. In particular, it could discover or exclude particles beyond those present in the standard model of particle physics. We consider a wide range of motivated scenarios beyond the standard model and identify those which would be best probed in the event of an observation. For those models we define representative benchmark parameters and characterise the photon spectra as a function of time. For the supersymmetric benchmark model, where most of the new particles produce secondary photons, we provide secondary spectra and discuss the subtle interplay between faster black hole evaporation and an increased flux of secondary photons. Finally, we discuss the impact of these models on future experimental analysis strategies.

show abstract

Primordial black hole evaporation and dark matter production. I. Solely Hawking radiation

Cited by 58 publications

References 57 publications

ALP Dark Matter in a Primordial Black Hole Dominated Universe

ALP Dark Matter in a Primordial Black Hole Dominated Universe

Asymptotically‐Flat Black Hole Solutions in Symmergent Gravity

Black hole evaporation beyond the Standard Model of particle physics

Contact Info

Product

Resources

About