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Joakim

Joakim Cederkäll

Professor

Joakim

Study of the 7Be(d,3He)6Li* reaction at 5 MeV/u

Author

  • Sk M. Ali
  • D. Gupta
  • K. Kundalia
  • S. Maity
  • Swapan K. Saha
  • O Tengblad
  • J. D. Ovejas
  • A. Perea
  • I. Martel
  • J. Cederkall
  • Jason Park
  • A.M. Moro
Show all

Summary, in English

The measurement of the 7Be(d,3He)6Li* transfer cross section at 5 MeV/u is carried out. The population of the 2.186 MeV excited state of 6Li in this reaction channel is observed for the first time. The experimental angular distributions have been analyzed in the finite range DWBA and coupled-channel frameworks. The effect of the 7Be(d,3He)6Li reaction on both the 6Li and 7Li abundances are investigated at the relevant big-bang nucleosynthesis energies. The excitation function is calculated by TALYS and normalized to the experimental data. The S factor of the (d,3He) channel from the present work is about 50% lower than existing data at nearby energies. At big-bang energies, the S factor is about three orders of magnitude smaller than that of the (d,p) channel. The (d,3He) reaction rate is found to have a less than 0.1% effect on the 6,7Li abundances.

Department/s

  • Nuclear physics
  • Particle and nuclear physics

Publishing year

2024-06

Language

English

Publication/Series

Physics Letters B

Volume

853

Document type

Journal article

Publisher

Elsevier

Topic

  • Subatomic Physics

Keywords

  • Big-bang nucleosynthesis
  • Primordial lithium abundance
  • Lithium anomalies
  • Reaction rates

Status

Published

ISBN/ISSN/Other

  • ISSN: 0370-2693