Investigation of 8B structure at low excitation energies

The 7Be(p,γ)8B reaction plays a very important role in nuclear astrophysics, since it is the source of the high-energy solar neutrinos. However, it is not possible to measure the cross section of this reaction at solar energies (20 keV) directly so one must rely on extrapolations from higherenergy data. It is clear, that extrapolation procedure can be strongly influenced by higher lying broad resonances [1]. This makes knowledge of the structure of 8B nucleus crucial for the correct interpretation of the results of the direct radiative capture measurements.