Nuclear shape evolution based on microscopic level densities
(2017) In Physical Review C 95(2).- Abstract
By combining microscopically calculated level densities with the Metropolis walk method, we develop a consistent framework for treating the energy and angular-momentum dependence of the nuclear shape evolution in the fission process. For each nucleus under consideration, the level density is calculated microscopically for each of more than five million shapes with a recently developed combinatorial method. The method employs the same single-particle levels as those used for the extraction of the pairing and shell contributions to the macroscopic-microscopic potential-energy surface. Containing no new parameters, the treatment is suitable for elucidating the energy dependence of the dynamics of warm nuclei on pairing and shell effects.... (More)
By combining microscopically calculated level densities with the Metropolis walk method, we develop a consistent framework for treating the energy and angular-momentum dependence of the nuclear shape evolution in the fission process. For each nucleus under consideration, the level density is calculated microscopically for each of more than five million shapes with a recently developed combinatorial method. The method employs the same single-particle levels as those used for the extraction of the pairing and shell contributions to the macroscopic-microscopic potential-energy surface. Containing no new parameters, the treatment is suitable for elucidating the energy dependence of the dynamics of warm nuclei on pairing and shell effects. It is illustrated for the fission fragment mass distribution for several uranium and plutonium isotopes of particular interest.
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- author
- Ward, D. E. LU ; Carlsson, B. G. LU ; Døssing, T. LU ; Möller, P. ; Randrup, J. LU and Åberg, S. LU
- organization
- publishing date
- 2017-02
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review C
- volume
- 95
- issue
- 2
- article number
- 024618
- publisher
- American Physical Society
- external identifiers
-
- scopus:85015396500
- ISSN
- 2469-9985
- DOI
- 10.1103/PhysRevC.95.024618
- language
- English
- LU publication?
- yes
- id
- fe2f67a4-2c6f-4d29-be07-4dacb32ff3d2
- date added to LUP
- 2022-03-31 12:19:15
- date last changed
- 2022-03-31 17:00:26
@article{fe2f67a4-2c6f-4d29-be07-4dacb32ff3d2,
abstract = {{<p>By combining microscopically calculated level densities with the Metropolis walk method, we develop a consistent framework for treating the energy and angular-momentum dependence of the nuclear shape evolution in the fission process. For each nucleus under consideration, the level density is calculated microscopically for each of more than five million shapes with a recently developed combinatorial method. The method employs the same single-particle levels as those used for the extraction of the pairing and shell contributions to the macroscopic-microscopic potential-energy surface. Containing no new parameters, the treatment is suitable for elucidating the energy dependence of the dynamics of warm nuclei on pairing and shell effects. It is illustrated for the fission fragment mass distribution for several uranium and plutonium isotopes of particular interest.</p>}},
author = {{Ward, D. E. and Carlsson, B. G. and Døssing, T. and Möller, P. and Randrup, J. and Åberg, S.}},
issn = {{2469-9985}},
language = {{eng}},
number = {{2}},
publisher = {{American Physical Society}},
series = {{Physical Review C}},
title = {{Nuclear shape evolution based on microscopic level densities}},
url = {{http://dx.doi.org/10.1103/PhysRevC.95.024618}},
doi = {{10.1103/PhysRevC.95.024618}},
volume = {{95}},
year = {{2017}},
}