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Title: Fission barriers in actinides in covariant density functional theory: The role of triaxiality

Abstract

Relativistic mean-field theory allowing for triaxial deformations is applied for a systematic study of fission barriers in the actinide region. Different pairing schemes are studied in detail and it is shown that covariant density functional theory is able to describe fission barriers on a level of accuracy comparable with nonrelativistic calculations, even with the best phenomenological macroscopic+microscopic approaches. Triaxiality in the region of the first saddle plays a crucial role in achieving that.

Authors:
;  [1];  [2]
  1. Department of Physics and Astronomy, Mississippi State University, Mississippi 39762 (United States)
  2. Fakultaet fuer Physik, Technische Universitaet Muenchen, D-85748 Garching (Germany)
Publication Date:
OSTI Identifier:
21419597
Resource Type:
Journal Article
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 82; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevC.82.044303; (c) 2010 The American Physical Society; Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ACCURACY; ACTINIDES; DENSITY FUNCTIONAL METHOD; FISSION BARRIER; MEAN-FIELD THEORY; NUCLEAR DEFORMATION; RELATIVISTIC RANGE; CALCULATION METHODS; DEFORMATION; ELEMENTS; ENERGY; ENERGY RANGE; METALS; NUCLEAR POTENTIAL; POTENTIAL ENERGY; POTENTIALS; VARIATIONAL METHODS

Citation Formats

Abusara, H, Afanasjev, A V, and Ring, P. Fission barriers in actinides in covariant density functional theory: The role of triaxiality. United States: N. p., 2010. Web. doi:10.1103/PHYSREVC.82.044303.
Abusara, H, Afanasjev, A V, & Ring, P. Fission barriers in actinides in covariant density functional theory: The role of triaxiality. United States. doi:10.1103/PHYSREVC.82.044303.
Abusara, H, Afanasjev, A V, and Ring, P. Fri . "Fission barriers in actinides in covariant density functional theory: The role of triaxiality". United States. doi:10.1103/PHYSREVC.82.044303.
@article{osti_21419597,
title = {Fission barriers in actinides in covariant density functional theory: The role of triaxiality},
author = {Abusara, H and Afanasjev, A V and Ring, P},
abstractNote = {Relativistic mean-field theory allowing for triaxial deformations is applied for a systematic study of fission barriers in the actinide region. Different pairing schemes are studied in detail and it is shown that covariant density functional theory is able to describe fission barriers on a level of accuracy comparable with nonrelativistic calculations, even with the best phenomenological macroscopic+microscopic approaches. Triaxiality in the region of the first saddle plays a crucial role in achieving that.},
doi = {10.1103/PHYSREVC.82.044303},
journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 4,
volume = 82,
place = {United States},
year = {2010},
month = {10}
}