Birth of Hot Big-Bang ERA in Pre-Big String Cosmology

Details Birth of Hot Big-Bang ERA in Pre-Big String Cosmology Birth of Hot Big-Bang ERA in Pre-Big String Cosmology

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002nmgm.meet.1231b&link_type=abstract

"THE NINTH MARCEL GROSSMANN MEETING On Recent Developments in Theoretical and Experimental General Relativity, Gravitation and R

Physics

Scientific paper

We investigate the reheating process in pre-big-bang string cosmology estimating the amount of moduli and gravitinos produced gravitationally and in scattering processes of the thermal bath. We find that those abundances always exceed the limit imposed by big-bang nucleosynthesis and we point out various mechanisms which provide the entropy necessary to dilute those dangerous relics. This entropy production can be viewed as the birth of the hot big-bang era in pre-big-bang string cosmology.

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