3He(α, γ)7Be cross section in a wide energy range

The reaction rate of the 3He(α,γ)7 Be reaction is important both in the Big Bang Nucleosynthesis (BBN) and in the Solar hydrogen burning. There have been a lot of experimental and theoretical efforts to determine this reaction rate with high precision. Some long standing issues have been solved by t...

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Bibliographic Details
Main Authors: Szücs, Tamás, Gyürky, György, Halász, Zoltán, Kiss, Gábor Gy, Fülöp, Zsolt
Format: Conference Proceeding
Language:English
Subjects:
Astronomical models
Beryllium 7
Big bang cosmology
Cross-sections
Energy measurement
Nuclei (nuclear physics)
Predictions
Online Access:Get full text
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Summary:The reaction rate of the 3He(α,γ)7 Be reaction is important both in the Big Bang Nucleosynthesis (BBN) and in the Solar hydrogen burning. There have been a lot of experimental and theoretical efforts to determine this reaction rate with high precision. Some long standing issues have been solved by the more precise investigations, like the different S(0) values predicted by the activation and in-beam measurement. However, the recent, more detailed astrophysical model predictions require the reaction rate with even higher precision to unravel new issues like the Solar composition. One way to increase the precision is to provide a comprehensive dataset in a wide energy range, extending the experimental cross section database of this reaction. This paper presents a new cross section measurement between Ecm = 2.5 − 4.4 MeV, in an energy range which extends above the 7Be proton separation threshold.
ISSN:2101-6275
2100-014X
DOI:10.1051/epjconf/201716501049