Formation of Li, Be, B in the Expanding Hot Universe

Details Formation of Li, Be, B in the Expanding Hot Universe Formation of Li, Be, B in the Expanding Hot Universe

Nov 1967

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1967pthph..38.1083s&link_type=abstract

Progress of Theoretical Physics, Vol. 38, No. 5, pp. 1083-1094

Physics

21

Scientific paper

The hot universe model suggests the element formation by thermonuclear fusion at the early stage of the cosmic expansion. The primordial origin of Li, Be, B is examined. Recent investigation by Wagoner, Fowler and Hoyle gives only the abundance of Li^7. In this paper, we estimate the abundances of all the stable isotopes of Li, Be and B produced. In the case of Friedmann models with the present matter density {rho}_{0m} = 10^{-32} {sim} 10^{-29} g/cm^3 and the present radiation temperature T_0 {simeq} 3^{circ}K, the produced quantities are D < 10^{-2.0}. He^3 < 10^{-3.6}, He^4 < 10^{-1.0}, Li^6 < 10^{-12.7}, Li^7 < 10^{-8.6}, Be^9 < 10^{-13.3}, B^{10} < 10^{-16.7} and B^{11} < 10^{-13.0}, by the ratio to hydrogen in number density. Therefore, the observed abundances of Li, Be, B cannot be explained by the primordial origin.

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