[en] By means of (¹⁶O, 5n) reaction, evidence is given for a decoupled band in ¹⁸⁷Pt and a strongly coupled one in ¹⁸⁵Pt. This can be explained by a transition between oblate and prolate shapes. Moreover, in ¹⁸⁷Pt, levels observed by radioactivity studies allow to predict the coexistence of prolate shape at low energy

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[en] The appearance of a decoupled band in ¹⁸⁷Pt and a normal band in ¹⁸⁵Pt from the ¹⁷⁴Yb, ¹⁷⁶Yb (¹⁶O,5n) reaction allows a shape transition from oblate to prolate to be predicted between these two nuclei

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[en] The observed transition in the spontaneous fission mass distribution from asymmetry in the lighter Fm isotopes to symmetry in the heavier Fm isotopes is studied on the basis of the potential energy surfaces (PES) and fragment shell effects in the two-center shell model. To that end, we have calculated the PES for ²⁵⁶Fm and compared them with our previous PES results for other Fm isotopes. Our calculations show that the lighter Fm isotopes (up to ²⁵⁶Fm) should fission asymmetrically, while ²⁵⁸Fm and other heavier Fm isotopes should fission symmetrically. This is due to the fact that the shell corrections in these nuclei are found to increase with increasing mass number and decreasing neck radius, particularly in the region beyond the second barrier. This, in turn, is a consequence of strong shell effects in fragment nuclei near the doubly closed-shell ¹³²₅₀Sn₈₂. The results supporting these conclusions are shown

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[en] Contradictory experimental results on the probability of ^189mOs long-lived isomer formation, when studying non-radiation excitation of nuclei in atomic transitions, were explained. The importance of the process for consideration of anomalies related to dynamic effects of electron current penetration into the nucleus is pointed out

[en] Using inelastic α-scattering at extremely forward angles, including 0°, the strength distributions of the isoscalar giant monopole resonance (ISGMR) have been measured in the ^204,206,208Pb isotopes in order to examine the proposed mutually enhanced magicity (MEM) effect on the nuclear incompressibility. The MEM effect had been suggested as a likely explanation of the “softness” of nuclear incompressibility observed in the ISGMR measurements in the Sn and Cd isotopes. Our experimental results rule out any manifestation of the MEM effect in nuclear incompressibility and leave the question of the softness of the open-shell nuclei unresolved still