Selected spectroscopic results on element 115 decay chains

Abstract

Selected Spectroscopic Results on Element 115 Decay Chains

Superheavy Element Studies with TASCA at GSI: Spectroscopy of Element 115 Decay Chains

“…[38][39][40][41][42]). Firstly, this 'model-independent' premise is consistent with the new, much more precise experimental Q α values, which agree very well with predictions concerning the lower part of the 288 115 decay chains [33].…”

“…Panel (b) shows the average values of the seven new TASISpec short chains [32]. At first sight, both decay times and the rather broad range of decay energies [33] are consistent with the numbers in panel (a). Therefore, the TASISpec data in itself could readily be explained by interpreting the seven short chains as small spontanous fission branches of 284 113 or 280 Rg, respectively -or, alternatively, as small EC branches with fast-fissioning even-even daughters 284 Cn and 280 Ds.…”

“…See, for example, Refs. [32,33,43] and references therein for more experimental information and first theoretical attempts.…”

Colloquium : Superheavy elements: Oganesson and beyond

“…Nuclear structure observables strongly depend on the underlying shell structure. Unfortunately, current empirical shell model potentials as well as self-consistent DFT models do not produce robust, consistent explanations of the steadily-growing body of spectroscopic information on transactinides (Ackermann, 2015;Ackermann and Theisen, 2017;Gates et al, 2015;Herzberg, 2016;Rudolph et al, 2015Rudolph et al, , 2013Theisen et al, 2015).…”

“…To constrain nuclear models in the superheavy region, new high-quality data on bulk properties and spectroscopy of superheavy systems are required. High-quality experimental data have been accumulated on global properties of superheavy nuclei and their spectroscopy (Ackermann, 2015;Ackermann and Theisen, 2017;Herzberg, 2016;Rudolph et al, 2015Rudolph et al, , 2013Theisen et al, 2015).…”