On Be-9 production in the nonuniform density model of big bang nucleosynthesis

Abstract

view Abstract Citations (4) References (30) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS On 9Be Production in the Nonuniform Density Model of Big Bang Nucleosynthesis Coc, A. ; Delbourgo-Salvador, P. ; de Oliveira, F. ; Aguer, P. ; Barhoumi, S. ; Bogaert, G. ; Kiener, J. ; Lafebvre, A. ; Thibaud, J. P. Abstract These calculations are motivated by the recent observation of a high Be-9 abundance in a very metal poor star and the measurement of a key reaction rate for Be-9 synthesis. We study Be-9 production within the nonuniform density model of big bang nucleosynthesis: regions of both high and low density with a nonstandard n/p ratio may have emerged out after the quark-hadron phase transition leading to nonconventional nucleosynthesis. In addition to the elements produced in the standard model (SM), Be-9 may be significantly produced. We look for the conditions that would lead to a high Be-9 abundance, as recent observations indicate that Be-9 primordial abundance may be higher than expected in the SM of big bang nucleosynthesis. Publication: The Astrophysical Journal Pub Date: January 1993 DOI: 10.1086/172112 Bibcode: 1993ApJ...402...62C Keywords: Astronomical Models; Beryllium 9; Big Bang Cosmology; Nuclear Fusion; Abundance; Density Wave Model; Elementary Particles; Astrophysics; COSMOLOGY: EARLY UNIVERSE; ELEMENTARY PARTICLES; NUCLEAR REACTIONS; NUCLEOSYNTHESIS; ABUNDANCES full text sources ADS | data products SIMBAD (1)