Resonance states in Mg-22, Si-26 for reaction rates in the RP-process

Motivated by the need of spectroscopic data to better understand the astrophysical rp-process, we developed a new experimental method using the Grand Raiden magnet spectrometer to study proton rich nuclei with a and 3 He induced reactions. The results of the Mg-24(He-4,He-6)Mg-22 reaction at 205 MeV and 0 degrees are presented, showing states relevant for resonant reaction rate calculations of the proton capture Na-21(p,gamma)Mg-22 and Ne-18(a,p)Na-21 reaction which controls the break-out of the hot CNO cycles at X-ray burst conditions. In addition, the results of the Si-28(He-4,He-6)(26) Si reaction are presented, showing states relevant to the production rate of Al-26 in its ground state which provides models of the explosive hydrogen burning process in novae and supernovae.