Other
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aas...212.9003f&link_type=abstract
American Astronomical Society, AAS Meeting #212, #90.03; Bulletin of the American Astronomical Society, Vol. 40, p.269
Other
Scientific paper
The sciences of outer space and inner space -- cosmology and elementary particle physics -- are converging. The early universe is a central arena for this interplay, and big-bang nucleosynthesis is particularly important because it represents our earliest reliable cosmic probe. We will summarize the current status of nucleosynthesis and the transformative influence of the WMAP determination of the cosmic baryon density. The cosmic baryon density is now well-determined by nucleosynthesis and WMAP, and points to the existence of two kinds of dark matter: some must be in the form of
ordinary atoms ("baryonic") but the bulk of dark matter must take some other exotic form ("non-baryonic"). The existence of non-baryonic dark matter immediately demands particles and possibly interactions beyond the Standard Model of elementary particle physics. The identification of the dark matter and its properties thus stands as one of the most pressing open questions in science today. We will discuss ongoing and future laboratory searches for particle dark matter: (1) via direct detection of relic particles from our own Galactic halo; and (2) via particle creation in accelerators.
Finally, we will discuss recent work which suggests that the popular particle physics scenario of Supersymmetry can lead to dark matter interactions which can affect nucleosynthesis and possibly can solve the pressing "lithium problem."
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