Probing the Big Bang with LEP

Details Probing the Big Bang with LEP Probing the Big Bang with LEP

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990stin...9024212s&link_type=abstract

Presented at the La Thuile Workshop, Mar. 1990

Mathematics

Logic

Astronomical Models, Big Bang Cosmology, Dark Matter, Nuclear Fusion, Abundance, Baryons, Neutrinos

Scientific paper

It is shown that LEP probes the Big Bang in two significant ways: (1) nucleosynthesis, and (2) dark matter constraints. In the first case, LEP verifies the cosmological standard model prediction on the number of neutrino types, thus strengthening the conclusion that the cosmological baryon density is approximately 6 percent of the critical value. In the second case, LEP shows that the remaining non-baryonic cosmological matter must be somewhat more massive and/or more weakly interacting than the favorite non-baryonic dark matter candidates of a few years ago.

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