Cosmological limits on brane-world disappearing dark matter

G. J. Mathews, P. M. Garnavich, K. Ichiki, T. Kajino, M. Yahiro

Research output: Chapter in Book/Report/Conference proceedingChapter


In the currently popular Randall-Sundrum model, the universe is described as a three-space (3-brane) embedded in a five-dimensional anti-de Sitter spacetime with a large (infinite) extra dimension. This concept is motivated by the D-brane solution found in ten-dimensional superstring theory and eleven dimensional M-theory/supergravity. This talk summarizes some possible observational consequences of such brane-world cosmology. For example, a new “dark radiation” term arises in the cosmic evolution equations which can affect the radiation dominated epoch. Moreover, matter may literally disappear into (or reemerge from) the extra dimension. This suggests a new interpretations for dark matter, dark energy and their evolution. Constraints on these possibilities arise from observations of high redshift supernovae, galaxy-clusters, X-ray gas in galactic clusters, and the cosmic microwave background. So far, all of the available constraints are consistent with (and may even slightly favor) this cosmology.

Original languageEnglish
Title of host publicationThe Tenth Marcel Grossmann Meeting
Subtitle of host publicationOn Recent Developments in Theoretical and Experimental General Relativity, Gravitation and Relativistic Field Theories
PublisherWorld Scientific Publishing Co.
Number of pages3
ISBN (Electronic)9789812704030
ISBN (Print)9789812566676
Publication statusPublished - Jan 1 2006

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


Dive into the research topics of 'Cosmological limits on brane-world disappearing dark matter'. Together they form a unique fingerprint.

Cite this