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1.
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Hawking radiation of non-standard black holes
/ Arbey, Alexandre (IP2I, Lyon ; CERN ; IUF, Paris) ; Auffinger, Jeremy (IP2I, Lyon) ; Geiller, Marc (ENS, Lyon, Lab. Phys.) ; Livine, Etera (ENS, Lyon, Lab. Phys.) ; Sartini, Francesco (ENS, Lyon, Lab. Phys.)
Black Holes of primordial origin (PBHs) can constitute a large fraction of dark matter (DM) in the Universe. If light enough, they can emit a sizeable amount of Hawking radiation, which may be detected by dark matter experiments and be used to set constraints on the fraction of PBHs as DM components. [...]
2022 - 4 p.
- Published in : PoS EPS-HEP2021 (2022) 066
Fulltext: PDF;
In : European Physics Society conference on High Energy Physics 2021, Online, Online, 26 - 30 Jul 2021, pp.066
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2.
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AlterBBN
/ Arbey, Alexandre (IP2I, Lyon ; CERN ; IUF, Paris) ; Auffinger, Jeremy (IP2I, Lyon)
We present the code AlterBBN, a public code for the computation of the abundance of the elements from Big-Bang nucleosynthesis in the standard cosmological model as well as in non-standard scenarios..
SISSA, 2021 - 6 p.
- Published in : PoS TOOLS2020 (2021) 032
Fulltext: PDF;
In : Tools for High Energy Physics and Cosmology, Lyon, France, 2 - 6 Nov 2020, pp.032
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3.
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4.
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Dark radiation constraints on light primordial black holes
/ Auffinger, Jérémy (IP2I, Lyon) ; Arbey, Alexandre (IP2I, Lyon ; CERN ; IUF, Paris) ; Sandick, Pearl (Utah U.) ; Haghi, Barmak Shams Es (Utah U.) ; Sinha, Kuver (Oklahoma U.)
Light black holes could have formed in the very early universe through the collapse of large primordial density fluctuations. These primordial black holes (PBHs), if light enough, would have evaporated by now because of the emission of Hawking radiation; thus they could not represent a sizable fraction of dark matter today. [...]
arXiv:2201.04946; CERN-TH-2021-169.-
2022 - 6 p.
- Published in : PoS EPS-HEP2021 (2022) 147
Fulltext: document - PDF; 2201.04946 - PDF;
In : European Physics Society conference on High Energy Physics 2021, Online, Online, 26 - 30 Jul 2021, pp.147
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5.
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6.
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Hawking radiation by spherically-symmetric static black holes for all spins. II. Numerical emission rates, analytical limits, and new constraints
/ Arbey, Alexandre (IP2I, Lyon ; CERN ; IUF, Paris) ; Auffinger, Jérémy (IP2I, Lyon) ; Geiller, Marc (ENS, Lyon, Lab. Phys.) ; Livine, Etera R. (ENS, Lyon, Lab. Phys.) ; Sartini, Francesco (ENS, Lyon, Lab. Phys.)
In the companion paper [Phys. Rev. [...]
arXiv:2107.03293; CERN-TH-2021-105.-
2021-10-04 - 22 p.
- Published in : Phys. Rev. D 104 (2021) 084016
Fulltext: PDF; Fulltext from publisher: PDF;
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7.
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Precision calculation of dark radiation from spinning primordial black holes and early matter-dominated eras
/ Arbey, Alexandre (IP2I, Lyon ; CERN ; IUF, Paris) ; Auffinger, Jérémy (IP2I, Lyon) ; Sandick, Pearl (Utah U.) ; Shams Es Haghi, Barmak (Utah U.) ; Sinha, Kuver (Oklahoma U.)
We present precision calculations of dark radiation in the form of gravitons coming from Hawking evaporation of spinning primordial black holes (PBHs) in the early Universe. Our calculation incorporates a careful treatment of extended spin distributions of a population of PBHs, the PBH reheating temperature, and the number of relativistic degrees of freedom. [...]
arXiv:2104.04051; CERN-TH-2021-049.-
2021-06-15 - 20 p.
- Published in : Phys. Rev. D 103 (2021) 123549
Fulltext: PDF; Fulltext from publisher: PDF;
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8.
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Primordial Kerr Black Holes
/ Arbey, Alexandre (IP2I, Lyon ; IUF, Paris ; CERN) ; Auffinger, Jérémy (IP2I, Lyon) ; Silk, Joseph (Paris, Inst. Astrophys. ; Johns Hopkins U. ; Oxford U.)
Primordial Black Holes (PBHs) are appealing candidates for dark matter in the universe but are severely constrained by theoretical and observational constraints. We will focus on the Hawking evaporation limits extended to Kerr black holes. [...]
arXiv:2012.14767.-
SISSA, 2021 - 6 p.
- Published in : PoS ICHEP2020 (2021) 585
Fulltext: 2012.14767 - PDF; PoS(ICHEP2020)585 - PDF;
In : 40th International Conference on High Energy Physics (ICHEP), Prague, Czech Republic, 28 Jul - 6 Aug 2020, pp.585
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9.
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BlackHawk: A tool for computing Black Hole evaporation
/ Auffinger, Jérémy (IP2I, Lyon) ; Arbey, Alexandre (IP2I, Lyon ; IUF, Paris ; CERN)
We present the public code \texttt{BlackHawk}, a powerful tool to compute the evaporation of any distribution of Schwarzschild and Kerr Black Holes and the emission spectra of Hawking radiation..
arXiv:2012.12902.-
SISSA, 2021-05-10 - 11 p.
- Published in : PoS TOOLS2020 (2021) 024
Fulltext: 2012.12902 - PDF; PoS(TOOLS2020)024 - PDF;
In : Tools for High Energy Physics and Cosmology, Lyon, France, 2 - 6 Nov 2020, pp.024
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10.
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Hawking radiation by spherically-symmetric static black holes for all spins: Teukolsky equations and potentials
/ Arbey, Alexandre (IP2I, Lyon ; CERN ; IUF, Paris) ; Auffinger, Jérémy (IP2I, Lyon) ; Geiller, Marc (Lyon, Ecole Normale Superieure) ; Livine, Etera R. (Lyon, Ecole Normale Superieure) ; Sartini, Francesco (Lyon, Ecole Normale Superieure)
In the context of the dynamics and stability of black holes in modified theories of gravity, we derive the Teukolsky equations for massless fields of all spins in general spherically-symmetric and static metrics. We then compute the short-ranged potentials associated with the radial dynamics of spin 1 and spin 1/2 fields, thereby completing the existing literature on spin 0 and 2. [...]
arXiv:2101.02951; CERN-TH-2021-007.-
2021-05-08 - 17 p.
- Published in : Phys. Rev. D 103 (2021) 104010
Fulltext: PDF; Fulltext from Publisher: PDF; Fulltext from publisher: PDF;
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