α Decay of High-K Isomers in 270Ds and 266Hs in a Superfluid Tunneling Model
(2018) In Physical Review C 97(2).- Abstract
- We use the superfluid tunneling model (STM) to calculate the half-lives of ground-state α decays of even-even superheavy nuclei (SHN) with Z≥100. The experimental data are reproduced to accuracies comparable to other contemporary models of α decay of SHN. We apply the STM to the case of the α decaying high-K isomers identified in the decay chains of 270Ds. By accounting for the α-decay Q values, Qα, the angular momentum difference between initial and final states, L, and a reduction in the pairing gap, Δ, we are able to reproduce the observed α decay of the isomers, including the unusual competition between L≈10 and L≈0 α branches seen for the K isomer in 270Ds... (More)
- We use the superfluid tunneling model (STM) to calculate the half-lives of ground-state α decays of even-even superheavy nuclei (SHN) with Z≥100. The experimental data are reproduced to accuracies comparable to other contemporary models of α decay of SHN. We apply the STM to the case of the α decaying high-K isomers identified in the decay chains of 270Ds. By accounting for the α-decay Q values, Qα, the angular momentum difference between initial and final states, L, and a reduction in the pairing gap, Δ, we are able to reproduce the observed α decay of the isomers, including the unusual competition between L≈10 and L≈0 α branches seen for the K isomer in 270Ds (Z=110). (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/23005020-b9ec-4beb-9f26-be7d855b96f0
- author
- Clark, R. M. and Rudolph, Dirk LU
- organization
- publishing date
- 2018-02-26
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- alpha decay, isomer decays, lifetimes & widths, nuclear structure and decays, superheavy elements
- in
- Physical Review C
- volume
- 97
- issue
- 2
- article number
- 024333
- pages
- 6 pages
- publisher
- American Physical Society
- external identifiers
-
- scopus:85042933184
- ISSN
- 2469-9985
- DOI
- 10.1103/PhysRevC.97.024333
- project
- Characterization of New Superheavy Elements
- language
- English
- LU publication?
- yes
- id
- 23005020-b9ec-4beb-9f26-be7d855b96f0
- date added to LUP
- 2018-03-05 15:53:05
- date last changed
- 2024-01-14 16:05:22
@article{23005020-b9ec-4beb-9f26-be7d855b96f0, abstract = {{We use the superfluid tunneling model (STM) to calculate the half-lives of ground-state α decays of even-even superheavy nuclei (SHN) with <i>Z</i>≥100. The experimental data are reproduced to accuracies comparable to other contemporary models of α decay of SHN. We apply the STM to the case of the α decaying high-<i>K</i> isomers identified in the decay chains of <sup>270</sup>Ds. By accounting for the α-decay <i>Q</i> values, <i>Q</i>α, the angular momentum difference between initial and final states, <i>L</i>, and a reduction in the pairing gap, Δ, we are able to reproduce the observed α decay of the isomers, including the unusual competition between <i>L</i>≈10 and<i> L</i>≈0 α branches seen for the <i>K </i>isomer in <sup>270</sup>Ds (<i>Z</i>=110).}}, author = {{Clark, R. M. and Rudolph, Dirk}}, issn = {{2469-9985}}, keywords = {{alpha decay; isomer decays; lifetimes & widths; nuclear structure and decays; superheavy elements}}, language = {{eng}}, month = {{02}}, number = {{2}}, publisher = {{American Physical Society}}, series = {{Physical Review C}}, title = {{α Decay of High-<i>K</i> Isomers in <sup>270</sup>Ds and <sup>266</sup>Hs in a Superfluid Tunneling Model}}, url = {{https://lup.lub.lu.se/search/files/39454266/PhysRevC.97.024333.pdf}}, doi = {{10.1103/PhysRevC.97.024333}}, volume = {{97}}, year = {{2018}}, }