PhysRevD.66.043513.pdf (248.68 kB)
Primordial black holes in braneworld cosmologies: Formation, cosmological evolution, and evaporation
journal contribution
posted on 2023-06-07, 19:27 authored by Raf Guedens, Dominic Clancy, Andrew LiddleWe consider the population evolution and evaporation of primordial black holes in the simplest braneworld cosmology, Randall-Sundrum type II. We demonstrate that black holes forming during the high-energy phase of this theory (where the expansion rate is proportional to the density) have a modified evaporation law, resulting in a longer lifetime and lower temperature at evaporation, while those forming in the standard regime behave essentially as in the standard cosmology. For sufficiently large values of the AdS radius, the high-energy regime can be the one relevant for primordial black holes evaporating at key epochs such as nucleosynthesis and the present. We examine the formation epochs of such black holes, and delimit the parameter regimes where the standard scenario is significantly modified. Comment: 9 pages RevTeX4 file with four figures incorporated, minor changes to match published version
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- Published
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- Published version
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Physical Review DISSN
1550-7998Publisher
American Physical SocietyExternal DOI
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4Volume
66Page range
043513Department affiliated with
- Physics and Astronomy Publications
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- Yes
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- Yes
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2012-02-06First Open Access (FOA) Date
2016-03-22First Compliant Deposit (FCD) Date
2016-11-10Usage metrics
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