Experiments

Astrophysical reaction rates studied by coulomb dissociation of radioactive beams (S223)

Since 7Be(p,g)8B is of utmost importance for solar-neutrino physics and since it is an ideal test case for the method of C.D., we propose to perform further measurements of the 8B C.D. and to improve on our previous experiment [...].
[...]
Of special current interest is the nucleosynthesis in the neighbourhood of long lived radioactive isotopes which have been (or probably will be) observed with g-ray observatories (COMPTEL, INTEGRAL). Two of these nuclei are 22Na and 26Al, where the decay of the latter has already been observed. [...] At present, a decision on the stellar site(s) of 22Na and 26Al production cannot be made due to the lack of the necessary nuclear physics data. [...] This proposal aims at a measurement of the resonant proton-capture on 22Mg and 26Si. Sizable reaction rates on these nuclei may lead to a bypass of the reaction flow around the long-lived readioactive daughter isotopes, thus having a strong impact on the observable [...] abundancies.