File:Shape deformations 6.jpg

Summary

Observed low-lying level scheme of \(^{25}\)Mg. Excitation energies of levels are expressed in units of MeV. The levels are mostly obtained from the reaction of \(^{24}\)Mg (d, p \(\gamma\))\(^{25}\)Mg and, consequently, belong to the \(^{24}\)Mg plus one-neutron configurations. In other words, only the one-particle levels lying higher than the {[}202 5/2{]} level for prolate shape in th Nilsson diagram of Figure 7 are surely observed. The parameters in the expression \eqref{eq:roten}, \(A\) for \(K\neq1/2\) bands (\(A\) and \(a\) for \(K\)=1/2 bands), which are estimated using the energies of the lowest two (three) rotational members, are indicated below respective bands. It is seen that already around band heads the rotational spectra of \(K\)=1/2 bands often deviate considerably from the \(I(I+1)\) dependence. The decoupling parameters, which are estimated using respective \(\Omega=1/2\) particle wave functions in the spheroidal potential with \(\beta\approx0.4\), exhibit the characteristic behavior depending on different bands and are found to provide a further support for the assignment of the intrinsic configurations given in the figure #BM75.

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