Primordial black holes in braneworld cosmologies: Formation, cosmological evolution, and evaporation

Guedens, Raf, Clancy, Dominic and Liddle, Andrew (2002) Primordial black holes in braneworld cosmologies: Formation, cosmological evolution, and evaporation. Physical Review D, 66 (4). 043513. ISSN 1550-7998

[img]
Preview
PDF - Published Version
Download (254kB) | Preview

Abstract

We 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

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: Andrew Liddle
Date Deposited: 06 Feb 2012 18:16
Last Modified: 13 Mar 2017 23:34
URI: http://sro.sussex.ac.uk/id/eprint/15562

View download statistics for this item

📧 Request an update