Probing<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi mathvariant="italic">sd</mml:mi><mml:mtext>−</mml:mtext><mml:mi mathvariant="italic">fp</mml:mi></mml:mrow></mml:math>cross-shell interactions via terminating configurations in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi mathvariant="normal">Sc</mml:mi><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>42</mml:mn><mml:mo>,</mml:mo><mml:mn>43</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>
Аннотация
An experimental study of the lower $\mathit{fp}$-shell nuclei $^{42,43}\mathrm{Sc}$ was performed via $\ensuremath{\alpha}\mathit{pn}$ and $\ensuremath{\alpha}p$ evaporation, respectively, from $^{20}\mathrm{Ne}$ + $^{28}\mathrm{Si}$ and $^{24}\mathrm{Mg}$ + $^{24}\mathrm{Mg}$ fusion-evaporation reactions. The experiments were conducted with the Gammasphere and Microball detector arrays. The level schemes of both nuclei have been extended considerably. Terminating states associated with the ${f}_{7/2}{}^{n}$ and ${d}_{3/2}{}^{\ensuremath{-}1}{f}_{7/2}{}^{n+1}$ configurations were identified in each nuclide and incorporated into detailed comparisons with neighboring nuclei and with shell model calculations. The energy differences between the terminating states provide a test of the $\mathit{sd}\text{\ensuremath{-}}\mathit{fp}$ cross-shell interactions in these calculations.