Abstract

The beta strength functionSβ is calculated in a schematical Brown-Bolsterli model for the Gamow-Tellerβ− decay of89–99Rb. The position of the peaks inSβ resulting from the back spin flip transitions and the calculated life-times are in good agreement with recent experimental results. A simple regularity is found to govern the energy position of the lowest-lying structures inSβ. By calculations of the type given here thus it should be possible to produce much more reliable input data concerningSβ forr-orn-process calculations than have been used up to now in astrophysical calculations.

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