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Title: Octupole deformation in neutron-rich actinides and superheavy nuclei and the role of nodal structure of single-particle wavefunctions in extremely deformed structures of light nuclei

Octupole deformed shapes in neutron-rich actinides and superheavy nuclei as well as extremely deformed shapes of the N ~ Z light nuclei have been investigated within the framework of covariant density functional theory. In th is study, we confirmed the presence of new region of octupole deformation in neutron-rich actinides with the center around Z ~ 96, N ~ 196 but our calculations do not predict octupole deformation in the ground states of superheavy Z > 108 nuclei. Lastly, as exemplified by the study of 36Ar, the nodal structure of the wavefunction of occupied single-particle orbitals in extremely deformed structures allows to understand the formation of the α-clusters in very light nuclei, the suppression of the α-clusterization with the increase of mass number, the formation of ellipsoidal mean-field type structures and nuclear molecules.
Authors:
 [1] ;  [2] ;  [1]
  1. Mississippi State Univ., Mississippi State, MS (United States). Department of Physics and Astronomy
  2. Birzeit University (Palestine). Physics Department
Publication Date:
Grant/Contract Number:
SC0013037
Type:
Accepted Manuscript
Journal Name:
Physica Scripta
Additional Journal Information:
Journal Volume: 93; Journal Issue: 3; Journal ID: ISSN 0031-8949
Publisher:
IOP Publishing
Research Org:
Mississippi State Univ., Mississippi State, MS (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; density functional theory; octupole deformation; extremely deformed shapes; wavefunction
OSTI Identifier:
1459444