Mathematics – Logic
Scientific paper
Jun 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993pnas...90.4779s&link_type=abstract
Proceedings of the National Academy of Sciences of the United States of America, Volume 90, Issue 11, pp. 4779-4781
Mathematics
Logic
Scientific paper
Big Bang nucleosynthesis provides a unique probe of the early evolution of the Universe and a crucial test of the consistency of the standard hot Big Bang cosmological model. Although the primordial abundances of ^2H, ^3He, ^4He, and ^7Li inferred from current observational data are in agreement with those predicted by Big Bang nucleosynthesis, recent analysis has severely restricted the consistent range for the nucleon-to-photon ratio: 3.7 <= eta10 <= 4.0. Increased accuracy in the estimate of primordial ^4He and observations of Be and B in Pop II stars are offering new challenges to the standard model and suggest that no new light particles may be allowed (NBBN_ν <= 3.0, where N_ν is the number of equivalent light neutrinos).
No associations
LandOfFree
Challenges to the Standard Model of Big Bang Nucleosynthesis does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Challenges to the Standard Model of Big Bang Nucleosynthesis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Challenges to the Standard Model of Big Bang Nucleosynthesis will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1336287