decay of high- K isomers in and in a superfluid tunneling model
Abstract
Here, 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 ).
- Authors:
-
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Nuclear Science Division
- Lund Univ. (Sweden). Dept. of Physics
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP); Knut and Alice Wallenberg Foundation (KAW)
- OSTI Identifier:
- 1430686
- Alternate Identifier(s):
- OSTI ID: 1422641
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review C
- Additional Journal Information:
- Journal Volume: 97; Journal Issue: 2; Journal ID: ISSN 2469-9985
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Citation Formats
Clark, R. M., and Rudolph, D.. α decay of high- K isomers in Ds270 and Hs266 in a superfluid tunneling model. United States: N. p., 2018.
Web. doi:10.1103/PhysRevC.97.024333.
Clark, R. M., & Rudolph, D.. α decay of high- K isomers in Ds270 and Hs266 in a superfluid tunneling model. United States. https://doi.org/10.1103/PhysRevC.97.024333
Clark, R. M., and Rudolph, D.. Thu .
"α decay of high- K isomers in Ds270 and Hs266 in a superfluid tunneling model". United States. https://doi.org/10.1103/PhysRevC.97.024333. https://www.osti.gov/servlets/purl/1430686.
@article{osti_1430686,
title = {α decay of high- K isomers in Ds270 and Hs266 in a superfluid tunneling model},
author = {Clark, R. M. and Rudolph, D.},
abstractNote = {Here, 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 ).},
doi = {10.1103/PhysRevC.97.024333},
journal = {Physical Review C},
number = 2,
volume = 97,
place = {United States},
year = {2018},
month = {2}
}
Web of Science
Figures / Tables:

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Figures / Tables found in this record: