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Microscopic description of fission properties for r-process nuclei

Giuliani, S. A. ; Martínez-Pinedo, G. ; Robledo, L. M. (2024)
Microscopic description of fission properties for r-process nuclei.
In: Journal of Physics: Conference Series, 2018, 940 (1)
doi: 10.26083/tuprints-00020915
Article, Secondary publication, Publisher's Version

This is the latest version of this item.

Abstract

Fission properties of 886 even-even nuclei in the region 84 ≤ Z ≤ 120 and 118 ≤ Z ≤ 250 were computed using the Barcelona-Catania-Paris-Madrid energy density functional. An extensive study of both the potential energy surfaces and collectives inertias was performed. Spontaneous fission half-lives are computed using the semiclassical Wentzel-Kramers-Brillouin formalism. By comparing these three quantities we found that the stability of the nucleus against the fission process is driven by the interplay between both the potential energy and the collective inertias. In our calculations, nuclei with relative long half-lives were found in two regions around Z = 120, N = 182 and Z = 104, N = 222.

Item Type: Article
Erschienen: 2024
Creators: Giuliani, S. A. ; Martínez-Pinedo, G. ; Robledo, L. M.
Type of entry: Secondary publication
Title: Microscopic description of fission properties for r-process nuclei
Language: English
Date: 7 May 2024
Place of Publication: Darmstadt
Year of primary publication: 2018
Place of primary publication: Bristol
Publisher: IOP Publishing
Journal or Publication Title: Journal of Physics: Conference Series
Volume of the journal: 940
Issue Number: 1
Collation: 4 Seiten
DOI: 10.26083/tuprints-00020915
URL / URN: https://tuprints.ulb.tu-darmstadt.de/20915
Corresponding Links:
Origin: Secondary publication DeepGreen
Abstract:

Fission properties of 886 even-even nuclei in the region 84 ≤ Z ≤ 120 and 118 ≤ Z ≤ 250 were computed using the Barcelona-Catania-Paris-Madrid energy density functional. An extensive study of both the potential energy surfaces and collectives inertias was performed. Spontaneous fission half-lives are computed using the semiclassical Wentzel-Kramers-Brillouin formalism. By comparing these three quantities we found that the stability of the nucleus against the fission process is driven by the interplay between both the potential energy and the collective inertias. In our calculations, nuclei with relative long half-lives were found in two regions around Z = 120, N = 182 and Z = 104, N = 222.

Identification Number: Artikel-ID: 012013
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-209154
Additional Information:

Nuclear Physics in Astrophysics Conference (NPA VII) 18–22 May 2015, York, UK

Classification DDC: 500 Science and mathematics > 530 Physics
Divisions: 05 Department of Physics
05 Department of Physics > Institute of Nuclear Physics
05 Department of Physics > Institute of Nuclear Physics > Theoretische Kernphysik
Date Deposited: 13 May 2024 06:07
Last Modified: 13 May 2024 06:07
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