Speaker
Prof.
Michael Wiescher
Description
This talk will discuss on to key reactions during post-main sequence stellar evolution. Both the radiative capture reactions 12C(α,)16O and the fusion reaction 12C+12C affect the nucleosynthesis of carbon in our universe. The role of these reactions will be discussed and recent results for the reaction cross sections will be analyzed in the context of nuclear structure and reaction models formulated by Eugene Wigner. The impact of the present prediction on quiescent late stellar evolution and cataclysmic explosions will be discussed.