Cosmological phase transitions in a brane world

Davis, Stephen C.; Perkins, Warren B.; Davis, Anne-Christine; Vernon, Ian R.

Abstract

In brane world scenarios the Friedmann equation is modified, resulting in an increased expansion at early times. This has important effects on cosmological phase transitions which we investigate, elucidating significant differences to the standard case. First order phase transitions require a higher nucleation rate to complete; baryogenesis and particle abundances could be suppressed. Topological defect evolution is also affected, though the current defect densities are largely unchanged. In particular, the increased expansion does not solve the usual monopole and domain wall problems.

Citation

Davis, S. C., Perkins, W. B., Davis, A., & Vernon, I. R. (2001). Cosmological phase transitions in a brane world. Physical Review D, Particles and fields, 63(8), Article 083518. https://doi.org/10.1103/physrevd.63.083518

• Journal Article Type: Article
• Acceptance Date: Dec 19, 2000
• Online Publication Date: Mar 27, 2001
• Publication Date: Mar 27, 2001
• Deposit Date: Feb 25, 2008
• Journal: Physical Review D, Particles and fields
• Print ISSN: 0556-2821
• Electronic ISSN: 1089-4918
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 63
• Issue: 8
• Article Number: 083518
• DOI: https://doi.org/10.1103/physrevd.63.083518
• Keywords: Extra-dimensions, Cosmology.
• Related Public URLs: https://arxiv.org/abs/hep-ph/0012223v2