A recent high-resolution α, X-ray, and γ-ray coincidence-spectroscopy experiment offered the first glimpse of excitation schemes of isotopes along α-decay chains of Z=115. To understand these observations and to make predictions about shell structure of superheavy nuclei below 288-115, we employ two complementary mean-field models: the self-consistent Skyrme energy density functional approach and the macroscopic-microscopic Nilsson model. We discuss the spectroscopic information carried by the new data. In particular, candidates for the experimentally observed E1 transitions in Mt276 are proposed. We find that the presence and nature of low-energy E1 transitions in well-deformed nuclei around Z=110,N=168 strongly depends on the strength of the spin-orbit coupling; hence, it provides an excellent constraint on theoretical models of superheavy nuclei. To clarify competing theoretical scenarios, an experimental search for E1 transitions in odd-A systems Mt277, Hs275, and Ds277 is strongly recommended.
|Research areas and keywords
- Physical Sciences
- Subatomic Physics
- superheavy elements, element 115, nuclear structure, density functional calculations, Nilsson-Strutinsky calculations
|Number of pages||5|
|Journal||Physical Review C (Nuclear Physics)|
|Publication status||Published - 2014|
The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Nuclear Physics (Faculty of Science) (011013004), Mathematical Physics (Faculty of Technology) (011040002)
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