Study of the 7Be(d,3He)6Li* reaction at 5 MeV/u
(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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- author
- organization
- publishing date
- 2024-06
- 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
- external identifiers
-
- scopus:85191521016
- 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
- 2024-07-25 04:01:59
@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}}, }