PROTON CAPTURE REACTION-RATES IN THE RP PROCESS

Detailed shell-model calculations have been performed to study the str ucture of excited states in neutron deficient T=1, T=3/2, and T=2 nucl ei in the mass range A=23-43. Excitation energies, single-particle spe ctroscopic factors, as well as gamma-transition strengths were compute d. On the basis of these results new reaction rates were calculated fo r proton capture on the T=1/2 nucleus Ar-35, on the odd-odd T=1 nuclei Al-24 and Cl-32, On the even-even T=1 nuclei Si-26, S-30, Ar-34 and T i-42 and the T=3/2 nuclei Al-23, P-27, Cl-31, and K-35. The new reacti on rates are compared with the results of statistical model calculatio ns as well as with previous estimates. The consequences of these new r ates for the reaction how and the rp process nucleosynthesis at differ ent stellar temperature and density conditions will be discussed.