2019
DOI: 10.1103/physrevc.99.055804
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Cross section of He3(α,γ)Be7 around the Be

Abstract: Background: The 3 He(α, γ ) 7 Be reaction is a widely studied nuclear reaction; however, it is still not understood with the required precision. It has a great importance both in Big Bang nucleosynthesis and in solar hydrogen burning. The low mass number of the reaction partners makes it also suitable for testing microscopic calculations. Purpose: Despite the high number of experimental studies, none of them addresses the 3 He(α, γ ) 7 Be reaction cross sections above 3.1-MeV center-of-mass energy. Recently, a… Show more

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Cited by 28 publications
(12 citation statements)
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“…No evidence for such a resonance was found in the 3 He( 4 He,γ) 7 Be reaction at E c.m. = 4210 keV as reported in recent comprehensive study [13].…”
Section: Introductionsupporting
confidence: 68%
“…No evidence for such a resonance was found in the 3 He( 4 He,γ) 7 Be reaction at E c.m. = 4210 keV as reported in recent comprehensive study [13].…”
Section: Introductionsupporting
confidence: 68%
“…The new 7 Be excited state can potentially contribute as a resonance in the 3 He( 4 He,γ) 7 Be reaction at centerof-mass energy E ≈ 4210 keV and affect the extrapolation of the cross section to solar energies. However, a recent 3 He( 4 He,γ) 7 Be cross section measurement found no evidence for such resonance [29].…”
mentioning
confidence: 93%
“…Then the arrangement is modified by placing the entrance foil between the alpha source and the detector, and a collimator is placed along the source-foil-Figure 1. The new preliminary data compared to literature values [7,11]. The total uncertainty of the data is shown.…”
Section: Methodsmentioning
confidence: 96%
“…In 2019, the reaction cross section was measured around the proton separation energy of the compound 7 Be nucleus in E c.m. = 4.0−4.4 MeV [11].…”
Section: Introductionmentioning
confidence: 97%