Journal
NUCLEAR PHYSICS A
Volume 1018, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.nuclphysa.2021.122359
Keywords
Beta decay; Total absorption spectroscopy; Beta-decay intensity
Categories
Funding
- National Science Foundation [PHY 1350234, PHY 1102511, PHY 1811855, PHY 0822648]
- Department of Energy National Nuclear Security Administration (NNSA) [DE-NA0002132, DE-NA0003221]
- Nuclear Science and Security Consortium [DE-NA0000979, DE-NA0003180]
- ERC-STG-2014 [637686]
- Research Council of Norway [205528, 210007]
- LLNL [DE-AC52-07NA27344]
- NNSA of the U.S. Department of energy at Los Alamos National Laboratory [DE-AC52-06NA25396]
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This paper reports the first beta-decay study of 74,75Cu isotopes using total absorption spectroscopy, providing insights into heavy element nucleosynthesis and the role of nuclei in the astrophysical r-process.
This paper reports on the first beta-decay study of 74,75Cu isotopes using the technique of total absorption spectroscopy (TAS). The experiment was performed at the National Superconducting Cyclotron Laboratory at Michigan State University using the Summing NaI(Tl) (SuN) detector. The Cu isotopes are good candidates to probe the single-particle structure in the region because they have one proton outside the Z = 28 shell. Comparing the beta-decay intensity distributions in the daughter Zn isotopes to the theoretical predictions provides a stringent test of the calculations. The nuclei in this region are also identified as playing an important role in the astrophysical r-process. The measured beta-decay intensity distributions provide essential nuclear physics inputs required to better understand heavy element nucleosynthesis. (c) 2021 Elsevier B.V. All rights reserved.
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