Double inflation in supergravity and the primordial black hole formation

dc.creatorKanazawa, Toshiyuki
dc.creatorKawasaki, M.
dc.creatorYanagida, T.
dc.date2000-02-23
dc.date2000-06-05
dc.date.accessioned2026-07-07T11:34:59Z
dc.date.available2026-07-07T11:34:59Z
dc.descriptionWe study a double inflation model (a hybrid inflation + a new inflation) in supergravity and discuss the formation of primordial black holes (PBHs) with mass \sim 10^{-20}-10^{5}M_{\odot}. We find that in a wide range of parameter space, we obtain PBHs which amount to Ω\simeq 1, i.e., PBH dark matter. Also, we find a set of inflation parameters which produces PBHs evaporating now. Those PBHs may be responsible for antiproton fluxes observed by the BESS experiment.
dc.description14 pages, 2 figures (RevTeX file)
dc.identifierhttps://arxiv.org/abs/hep-ph/0002236
dc.identifierhttp://arxiv.org/abs/hep-ph/0002236
dc.identifierPhys.Lett.B482:174-182,2000
dc.identifierdoi:10.1016/S0370-2693(00)00499-8
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/198444
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleDouble inflation in supergravity and the primordial black hole formation
dc.typetext

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