Cross sections and reaction rates of reactions involved in Big Bang nucleosynthesis
Year: 1995
Type: article
Abstract: We have measured angular distributions of the 2 H( 8 Li, 7 Li) 3 H and 2 H( 8 Li, 9 Be)n reactions at E c.m. = 1.5 to 2.8 MeV using an 8 Li- radioactive-beam technique. Astrophysical S -factors and reaction rates were calculated form the measured cross sections. Although the 2 H( 8 Li, 9 Be)n cross section is small, it can contribute to 9 Be synthesis. The 2 H( 8 Li, 7 Li) 3 H reaction has a sufficiently large cross section to destroy 8 Li, which may decrease the synthesis of heavier elements. No products from the 2 H( 8 Li, 9 Li)p reaction were detected. We also present the results of calculations using the inhomogeneous model of primordial nucleosynthesis in several regions of parameter space.
Source: Nuclear Physics A
Authors: M.J. Balbes, M.M. Farrell, R.N. Boyd, X. Gu, M. Hencheck, J.D. Kalen, C.A. Mitchell, J.J. Kolata, K. Lamkin, R. Smith, R. Tighe, K. Ashktorab, F.D. Becchetti, J. Brown, D. Roberts, T.-F. Wang, D. Humphrey, G. Vourvopoulos, M.S. Islam
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,590
OpenAlex ID: W2087819478