α decay of high-spin isomers in N = 84 isotones
(2019) In Physical Review C 99(2).- Abstract
The superfluid tunneling model is applied to the calculation of half-lives of the observed α decays in N=84 isotones. Results of our calculations are compared to experimental data on the ground-state α decays along the isotonic chain from 144Nd to 159Re. Good agreement is found. The α decays of the known high-spin isomers in 155Lu, 156Hf, 157Ta, and 158W are also well reproduced, once a reduction in the pairing strength is taken into account. This includes reproduction of the main features of the recently observed fine structure from 155Lu (25/2-) and 156Hf (8+). Predictions for the α-decay fine structure of... (More)
The superfluid tunneling model is applied to the calculation of half-lives of the observed α decays in N=84 isotones. Results of our calculations are compared to experimental data on the ground-state α decays along the isotonic chain from 144Nd to 159Re. Good agreement is found. The α decays of the known high-spin isomers in 155Lu, 156Hf, 157Ta, and 158W are also well reproduced, once a reduction in the pairing strength is taken into account. This includes reproduction of the main features of the recently observed fine structure from 155Lu (25/2-) and 156Hf (8+). Predictions for the α-decay fine structure of 157Ta (25/2-) and 158W (8+) high-spin isomers are presented.
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- author
- Clark, R. M. ; Crawford, H. L. ; Macchiavelli, A. O. ; Rudolph, D. LU ; Såmark-Roth, A. LU ; Campbell, C. M. ; Cromaz, M. ; Fallon, P. ; Morse, C. and Santamaria, C.
- organization
- publishing date
- 2019-02-28
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- alpha decay, isomer decays, lifetimes & widths, nuclear structure and decays
- in
- Physical Review C
- volume
- 99
- issue
- 2
- article number
- 024325
- pages
- 6 pages
- publisher
- American Physical Society
- external identifiers
-
- scopus:85062472746
- ISSN
- 2469-9985
- DOI
- 10.1103/PhysRevC.99.024325
- project
- Characterization of New Superheavy Elements
- language
- English
- LU publication?
- yes
- id
- 5b8836cf-8ced-4bb4-b6e4-2b1c1ab2d92e
- date added to LUP
- 2019-03-11 12:19:37
- date last changed
- 2023-04-09 06:26:32
@article{5b8836cf-8ced-4bb4-b6e4-2b1c1ab2d92e, abstract = {{<p>The superfluid tunneling model is applied to the calculation of half-lives of the observed α decays in <i>N</i>=84 isotones. Results of our calculations are compared to experimental data on the ground-state α decays along the isotonic chain from <sup>144</sup>Nd to <sup>159</sup>Re. Good agreement is found. The α decays of the known high-spin isomers in <sup>155</sup>Lu, <sup>156</sup>Hf, <sup>157</sup>Ta, and <sup>158</sup>W are also well reproduced, once a reduction in the pairing strength is taken into account. This includes reproduction of the main features of the recently observed fine structure from <sup>155</sup>Lu (25/2<sup>-</sup>) and <sup>156</sup>Hf (8<sup>+</sup>). Predictions for the α-decay fine structure of <sup>157</sup>Ta (25/2<sup>-</sup>) and <sup>158</sup>W (8<sup>+</sup>) high-spin isomers are presented.</p>}}, author = {{Clark, R. M. and Crawford, H. L. and Macchiavelli, A. O. and Rudolph, D. and Såmark-Roth, A. and Campbell, C. M. and Cromaz, M. and Fallon, P. and Morse, C. and Santamaria, C.}}, issn = {{2469-9985}}, keywords = {{alpha decay; isomer decays; lifetimes & widths; nuclear structure and decays}}, language = {{eng}}, month = {{02}}, number = {{2}}, publisher = {{American Physical Society}}, series = {{Physical Review C}}, title = {{α decay of high-spin isomers in <i>N</i> = 84 isotones}}, url = {{https://lup.lub.lu.se/search/files/61359036/PhysRevC.99.024325.pdf}}, doi = {{10.1103/PhysRevC.99.024325}}, volume = {{99}}, year = {{2019}}, }