Towards a high-precision measurement of the 3He(α,γ)7Be cross section at LUNA

Details Towards a high-precision measurement of the 3He(α,γ)7Be cross section at LUNA Towards a high-precision measurement of the 3He(α,γ)7Be cross section at LUNA

Mar 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006epja...27s.177c&link_type=abstract

The European Physical Journal A, Volume 27, Issue 1, pp.177-180

Other

25.40.Lw Radiative Capture, 26.20.+F Hydrostatic Stellar Nucleosynthesis

Scientific paper

The 3He(4He,γ)7Be reaction is the key process for the production of 7Be and 8B neutrinos in the Sun. We have designed a new experimental setup to study this reaction with high accuracy at low energies using two different experimental techniques. The first method consists in measuring the prompt capture gamma-ray transitions with an ultra-low background germanium detector heavily shielded and placed at close distance from a 3He windowless gas target. With another fully shielded large-volume germanium detector we will also measure the β-decay of the 7Be residual nuclei. The aim of the experiment is to reduce the error on the astrophysical factor S3, 4 to 4%.

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