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The (3)He((4)He, gamma)(7)Be reaction is the key process for the production of (7)Be and (8)B 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 (3)He windowless gas target. With another fully shielded large-volume germanium detector we will also measure the beta-decay of the (7)Be residual nuclei. The aim of the experiment is to reduce the error on the astrophysical factor S(3,4) to 4%

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