Structure of superheavy nuclei along decay chains of element 115
Shi, Y., Ward, D., Carlsson, B., Dobaczewski, J., Nazarewicz, W., Ragnarsson, I., & Rudolph, D. (2014). Structure of superheavy nuclei along decay chains of element 115. Physical Review C, 90 (1), 014308 . doi:10.1103/PhysRevC.90.014308 Retrieved from http://arxiv.org/abs/1401.7959
Published inPhysical Review C
Shi, Yue |
©2014 American Physical Society. This is an article whose final and definitive form has been published by American Physical Society.
[Introduction] 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 E 1 transitions in 276 Mt are proposed. We find that the presence and nature of low-energy E 1 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 E 1 transitions in odd- A systems 275 , 277 Mt, 275 Hs, and 277 Ds is strongly recommended. ...
PublisherAmerican Physical Society