Global Calculation of Nuclear Shape Isomers
(2009) In Physical Review Letters 103(21).- Abstract
- To determine which nuclei may exhibit shape isomerism, we use a well-benchmarked macroscopic-microscopic model to calculate potential-energy surfaces as functions of spheroidal (epsilon(2)), hexadecapole (epsilon(4)), and axial-asymmetry (gamma) shape coordinates for 7206 nuclei from A=31 to A=290. We analyze these and identify the deformations and energies of all minima deeper than 0.2 MeV. These minima may correspond to characteristic experimentally observable shape-isomeric states. Shape isomers mainly occur in the A=80 region, the A=100 region, and in an extended region centered around Pb-208. We compare our model to experimental results for Kr isotopes. Moreover, in a plot versus N and Z we show for each of the 7206 nuclei the... (More)
- To determine which nuclei may exhibit shape isomerism, we use a well-benchmarked macroscopic-microscopic model to calculate potential-energy surfaces as functions of spheroidal (epsilon(2)), hexadecapole (epsilon(4)), and axial-asymmetry (gamma) shape coordinates for 7206 nuclei from A=31 to A=290. We analyze these and identify the deformations and energies of all minima deeper than 0.2 MeV. These minima may correspond to characteristic experimentally observable shape-isomeric states. Shape isomers mainly occur in the A=80 region, the A=100 region, and in an extended region centered around Pb-208. We compare our model to experimental results for Kr isotopes. Moreover, in a plot versus N and Z we show for each of the 7206 nuclei the calculated number of minima. The results reveal one fairly unexplored region of shape isomerism, which is experimentally accessible, namely the region northeast of Pb-208(82). (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1518203
- author
- Moeller, Peter ; Sierk, Arnold J. ; Bengtsson, Ragnar LU ; Sagawa, Hiroyuki and Ichikawa, Takatoshi
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review Letters
- volume
- 103
- issue
- 21
- publisher
- American Physical Society
- external identifiers
-
- wos:000272054300012
- scopus:70450185400
- pmid:20366030
- ISSN
- 1079-7114
- DOI
- 10.1103/PhysRevLett.103.212501
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)
- id
- 8a84c8f2-0582-4a45-9c9d-4aa54eb0327b (old id 1518203)
- date added to LUP
- 2016-04-01 12:35:45
- date last changed
- 2022-04-06 00:27:21
@article{8a84c8f2-0582-4a45-9c9d-4aa54eb0327b,
abstract = {{To determine which nuclei may exhibit shape isomerism, we use a well-benchmarked macroscopic-microscopic model to calculate potential-energy surfaces as functions of spheroidal (epsilon(2)), hexadecapole (epsilon(4)), and axial-asymmetry (gamma) shape coordinates for 7206 nuclei from A=31 to A=290. We analyze these and identify the deformations and energies of all minima deeper than 0.2 MeV. These minima may correspond to characteristic experimentally observable shape-isomeric states. Shape isomers mainly occur in the A=80 region, the A=100 region, and in an extended region centered around Pb-208. We compare our model to experimental results for Kr isotopes. Moreover, in a plot versus N and Z we show for each of the 7206 nuclei the calculated number of minima. The results reveal one fairly unexplored region of shape isomerism, which is experimentally accessible, namely the region northeast of Pb-208(82).}},
author = {{Moeller, Peter and Sierk, Arnold J. and Bengtsson, Ragnar and Sagawa, Hiroyuki and Ichikawa, Takatoshi}},
issn = {{1079-7114}},
language = {{eng}},
number = {{21}},
publisher = {{American Physical Society}},
series = {{Physical Review Letters}},
title = {{Global Calculation of Nuclear Shape Isomers}},
url = {{http://dx.doi.org/10.1103/PhysRevLett.103.212501}},
doi = {{10.1103/PhysRevLett.103.212501}},
volume = {{103}},
year = {{2009}},
}