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Structure of Superheavy Nuclei Along Decay Chains of Element 115

Shi, Yue; Ward, Daniel LU ; Carlsson, Gillis LU ; Dobaczewski, J.; Nazarewicz, W.; Ragnarsson, Ingemar LU and Rudolph, Dirk LU (2014) In Physical Review C (Nuclear Physics) 90(1).
Abstract
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... (More)
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. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review C (Nuclear Physics)
volume
90
issue
1
publisher
American Physical Society
external identifiers
  • wos:000339446300002
  • scopus:84905181737
ISSN
0556-2813
DOI
10.1103/PhysRevC.90.014308
language
English
LU publication?
yes
id
46c7c22b-dacb-4dec-a61f-205d7e861f86 (old id 4579543)
alternative location
http://link.aps.org/doi/10.1103/PhysRevC.90.014308
date added to LUP
2014-07-18 09:53:33
date last changed
2017-04-09 03:19:39
@article{46c7c22b-dacb-4dec-a61f-205d7e861f86,
  abstract     = {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.},
  articleno    = {014308},
  author       = {Shi, Yue and Ward, Daniel and Carlsson, Gillis and Dobaczewski, J. and Nazarewicz, W. and Ragnarsson, Ingemar and Rudolph, Dirk},
  issn         = {0556-2813},
  language     = {eng},
  number       = {1},
  publisher    = {American Physical Society},
  series       = {Physical Review C (Nuclear Physics)},
  title        = {Structure of Superheavy Nuclei Along Decay Chains of Element 115},
  url          = {http://dx.doi.org/10.1103/PhysRevC.90.014308},
  volume       = {90},
  year         = {2014},
}