Neutrino primordial Planckian black holes
Saulo Carneiro, Pedro C. de Holanda, Alberto Saa
ARTIGO
Inglês
Agradecimentos: We are thankful to J. García-Bellido and C. Giunti for useful discussions. Work partially supported by CNPq (SC grant no. 311584/2020-9, PCH grant no. 310952/2018-2, AS grant no. 302674/2018-7) and FAPESP (PCH grant no. 2014/19164-6)
Abstract: Extremal rotating black holes can be formed in the Planck energy scattering of Dirac spin parallel neutrinos in the mass state m(2) (assuming m(1) = 0), owing to the repulsive interaction between their magnetic dipoles, induced by vacuum fluctuations. Assuming that some recent results of...
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Abstract: Extremal rotating black holes can be formed in the Planck energy scattering of Dirac spin parallel neutrinos in the mass state m(2) (assuming m(1) = 0), owing to the repulsive interaction between their magnetic dipoles, induced by vacuum fluctuations. Assuming that some recent results of loop-quantised Schwarzschild black holes would be also applicable for the Kerr case, we show that the resulting black hole has Planck mass and angular momentum h over line , and that its horizon area is in the spectrum of the Loop Quantum Gravity area operator. Moreover, we argue that such black holes could be produced at the reheating, with an abundance that allows their interpretation as forming the presently observed dark matter component, provided that the energy scale at inflation is approximate to 10(17) GeV. This scale can be lower if we attribute a high chemical potential to primordial neutrinos. As extremal black holes have zero surface gravity, there is no limits on their abundance from Hawking evaporation
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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ
311584/2020-9; 310952/2018-2; 302674/2018-7
FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP
2014/19164-6
Aberto
Neutrino primordial Planckian black holes
Saulo Carneiro, Pedro C. de Holanda, Alberto Saa
Neutrino primordial Planckian black holes
Saulo Carneiro, Pedro C. de Holanda, Alberto Saa
Fontes
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Physics letters. Section B, Nuclear, elementary particle and high-energy physics Vol. 822 (Nov., 2021), n. art. 136670, p. 1-5 |