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

Ali, Sk M. ; Gupta, D. ; Kundalia, K. ; Maity, S. ; Saha, Swapan K. ; Tengblad, O ; Ovejas, J. D. ; Perea, A. ; Martel, I. and Cederkall, J. LU , et al. (2024) In Physics Letters B 853.
Abstract
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... (More)
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. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Big-bang nucleosynthesis, Primordial lithium abundance, Lithium anomalies, Reaction rates
in
Physics Letters B
volume
853
article number
138673
pages
6 pages
publisher
Elsevier
ISSN
0370-2693
DOI
10.1016/j.physletb.2024.138673
language
English
LU publication?
yes
id
b0be7200-f712-4f3b-9687-3f16d4f7a142
date added to LUP
2024-05-01 08:22:26
date last changed
2024-05-02 09:09:58
@article{b0be7200-f712-4f3b-9687-3f16d4f7a142,
  abstract     = {{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 (<i>d,p</i>) channel. The (d,3He) reaction rate is found to have a less than 0.1% effect on the 6,7Li abundances.}},
  author       = {{Ali, Sk M. and Gupta, D. and Kundalia, K. and Maity, S. and Saha, Swapan K. and Tengblad, O and Ovejas, J. D. and Perea, A. and Martel, I. and Cederkall, J. and Park, Jason and Moro, A.M.}},
  issn         = {{0370-2693}},
  keywords     = {{Big-bang nucleosynthesis; Primordial lithium abundance; Lithium anomalies; Reaction rates}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Physics Letters B}},
  title        = {{Study of the <sup>7</sup>Be(<i>d</i>,<sup>3</sup>He)<sup>6</sup>Li* reaction at 5 MeV/u}},
  url          = {{http://dx.doi.org/10.1016/j.physletb.2024.138673}},
  doi          = {{10.1016/j.physletb.2024.138673}},
  volume       = {{853}},
  year         = {{2024}},
}