Abstract
Differential cross sections on 45Sc have been measured for inelastic scattering (p, p i; i = 2–13) at lab angles of 70° and 110° in the proton energy range 2.5 to 3.5 MeV and for the (p, α 0, 1) reactions at 125° between 2.8 and 3.8 MeV. Angular distributions were obtained at incident energies of 2.90, 3.15 and 3.40 MeV. These data were compared with calculations performed with a Hauser-Feshbach statistical model and average parameters which have been used to calculate reaction rates during stellar nucleosynthesis. The general agreement between the calculations and the trend of the data supports the use of these calculations for reaction rates involving nuclei in excited states, a situation important during stellar silicon burning.
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