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Title: Recoil- α -fission and recoil- α – α -fission events observed in the reaction 48 Ca + 243 Am

A recent high-resolution α, X-ray, and γ-ray coincidence-spectroscopy experiment at GSI 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 288115, we employed nuclear DFT. 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.
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Publication Date:
Grant/Contract Number:
NA0002847; NA0002574; SC0008511; 262010; AC02-05CH11231
Type:
Accepted Manuscript
Journal Name:
Nuclear Physics. A
Additional Journal Information:
Journal Volume: 953; Journal Issue: C; Journal ID: ISSN 0375-9474
Publisher:
Elsevier
Research Org:
Michigan State Univ., East Lansing, MI (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA); European Commision (EC); Royal Physiographic Society in Lund (Sweden); Swedish Research Council (SRC); German Federal Ministry of Education and Research (BMBF); Science and Technology Facilities Council (STFC) (United Kingdom)
Country of Publication:
United States
Language:
English
OSTI Identifier:
1358655
Alternate Identifier(s):
OSTI ID: 1347248; OSTI ID: 1454485