Results 31 to 40 of about 176,413 (293)
Physics Letters B, 2023 We investigate production of primordial black holes from first-order electroweak phase transition in the framework of the nearly aligned Higgs effective field theory, in which non-decoupling quantum effects are properly described.
Katsuya Hashino +3 more
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Primordial black holes from confinement [PDF]
Physical Review D, 2021 A mechanism for the formation of primordial black holes is proposed. Here, heavy quarks of a confining gauge theory produced by de Sitter fluctuations are pushed apart by inflation and get confined after horizon re-entry. The large amount of energy stored in the colour flux tubes connecting the quark pair leads to black-hole formation.
Gia Dvali +2 more
openaire +3 more sources
European Physical Journal C: Particles and Fields, 2021 We show that the physical conditions which induce the Thakurta metric, recently studied by Bœhm et al. in the context of time-dependent black hole masses, correspond to a single accreting compact object in the entire Universe filled with isotropic non ...
Gert Hütsi +4 more
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Stochastic gravitational-wave background as a tool for investigating multi-channel astrophysical and primordial black-hole mergers [PDF]
Astronomy & Astrophysics, 2021 The formation of merging binary black holes can occur through multiple astrophysical channels such as, e.g., isolated binary evolution and dynamical formation or, alternatively, have a primordial origin.
S. Bavera +5 more
semanticscholar +1 more source
Revisiting Primordial Black Hole Evolution
Axioms, 2020 Primordial black holes (PBHs) are the sensitive probe for physics and cosmology of very early Universe. The observable effect of their existence depends on the PBH mass.
Maxim Khlopov, Biplab Paik, Saibal Ray
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Scalar induced gravitational waves from primordial black hole Poisson fluctuations in f(R) gravity [PDF]
Journal of Cosmology and Astroparticle Physics, 2021 The gravitational potential of a gas of initially randomly distributed primordial black holes (PBH) can induce a stochastic gravitational-wave (GW) background through second-order gravitational effects. This GW background can be abundantly generated in a
T. Papanikolaou +3 more
semanticscholar +1 more source
On the primordial black hole mass function for broad spectra
Physics Letters B, 2020 We elaborate on the mass function of primordial black holes in the case in which the power spectrum of the curvature perturbation is broad. For the case of a broad and flat spectrum, we argue that such a mass function is peaked at the smallest primordial
V. De Luca, G. Franciolini, A. Riotto
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GW200105 and GW200115 are compatible with a scenario of primordial black hole binary coalescences
European Physical Journal C: Particles and Fields, 2022 Two gravitational wave events, i.e. GW200105 and GW200115, were observed by the Advanced LIGO and Virgo detectors recently. In this work, we show that they can be explained by a scenario of primordial black hole binaries that are formed in the early ...
Sai Wang, Zhi-Chao Zhao
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Primordial black hole dark matter from inflation: The reverse engineering approach [PDF]
Physical Review D, 2022 Constraining the inflationary epoch is one of the aims of modern cosmology. In order to fully exploit current and future small-scale observations, it is necessary to devise tools to directly relate them to the early universes dynamics.
G. Franciolini, A. Urbano
semanticscholar +1 more source
Neutrinos from primordial black holes [PDF]
Physical Review D, 1995 19 pages plus 9 uuencoded and compressed postscript ...
Halzen, Francis +2 more
openaire +3 more sources