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
Abstract
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:
-
- Mississippi State Univ., Mississippi State, MS (United States). Department of Physics and Astronomy
- Birzeit University (Palestine). Physics Department
- Publication Date:
- Research Org.:
- Mississippi State Univ., Mississippi State, MS (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1459444
- Grant/Contract Number:
- SC0013037
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physica Scripta
- Additional Journal Information:
- Journal Volume: 93; Journal Issue: 3; Journal ID: ISSN 0031-8949
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; density functional theory; octupole deformation; extremely deformed shapes; wavefunction
Citation Formats
Afanasjev, A. V., Abusara, H., and Agbemava, S. E. 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. United States: N. p., 2018.
Web. doi:10.1088/1402-4896/aaa3d0.
Afanasjev, A. V., Abusara, H., & Agbemava, S. E. 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. United States. https://doi.org/10.1088/1402-4896/aaa3d0
Afanasjev, A. V., Abusara, H., and Agbemava, S. E. Tue .
"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". United States. https://doi.org/10.1088/1402-4896/aaa3d0. https://www.osti.gov/servlets/purl/1459444.
@article{osti_1459444,
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},
author = {Afanasjev, A. V. and Abusara, H. and Agbemava, S. E.},
abstractNote = {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.},
doi = {10.1088/1402-4896/aaa3d0},
journal = {Physica Scripta},
number = 3,
volume = 93,
place = {United States},
year = {Tue Feb 06 00:00:00 EST 2018},
month = {Tue Feb 06 00:00:00 EST 2018}
}
Web of Science
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