Determination of the spins and parities for the 04+ and 05+ states in Zr100

Two 0+ states at 1294.5 and 1774.0 keV, together with three 2+ and one 4+ levels, were identified or unambiguously spin-parity assigned for the first time in Zr100 utilizing γ-ray spectroscopy and γ-γ angular correlation techniques with the Gammasphere spectrometer, following the β− decay of neutron-rich, mass-separated Y100,100m isotopes. Comparisons with recent Monte Carlo shell-model calculations indicate that these two states are candidates for the bandhead of a sequence in a shape-coexisting spherical minimum predicted to be located around ≈1500 keV. According to the measured relative B(E2)relative transition probabilities, the 05+ state exhibits decay properties which more closely align with those predicted for a spherical shape, while the 04+ level is suggested to be associated with a weakly deformed shape similar to one related to the 02+ state.

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UNC Libraries
Published
2024-11-20
DOI
https://doi.org/10.17615/hx5m-a307
Primary Topic
Inorganic Chemistry and Materials
Type
article
Field-Weighted Citation Impact
0.00

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article

Determination of the spins and parities for the 04+ and 05+ states in Zr100

E. A. McCutchan, F. G. Kondev, J. A. Clark, T. Lauritsen et al.
UNC Libraries
Inorganic Chemistry and Materials
article

Determination of the spins and parities for the 04+ and 05+ states in Zr100

E. A. McCutchan, F. G. Kondev, J. A. Clark, T. Lauritsen, D. J. Hartley, M. P. Carpenter, V. Werner, D. Seweryniak, Sha Zhu, A. D. Ayangeakaa, G. Savard, J. Wu, R. V. F. Janssens, N. Pietralla, Jun Chen
article en

Abstract

Two 0+ states at 1294.5 and 1774.0 keV, together with three 2+ and one 4+ levels, were identified or unambiguously spin-parity assigned for the first time in Zr100 utilizing γ-ray spectroscopy and γ-γ angular correlation techniques with the Gammasphere spectrometer, following the β− decay of neutron-rich, mass-separated Y100,100m isotopes. Comparisons with recent Monte Carlo shell-model calculations indicate that these two states are candidates for the bandhead of a sequence in a shape-coexisting spherical minimum predicted to be located around ≈1500 keV. According to the measured relative B(E2)relative transition probabilities, the 05+ state exhibits decay properties which more closely align with those predicted for a spherical shape, while the 04+ level is suggested to be associated with a weakly deformed shape similar to one related to the 02+ state.

UNC Libraries
University of North Carolina at Chapel Hill (US)
National Science Foundation, U.S. Department of Energy, Bundesministerium für Bildung und Forschung, Office of Science, National Nuclear Security Administration, Office of Defense Nuclear Nonproliferation, Nuclear Physics, Argonne National Laboratory
Openalex Percentile: Top 83%
Inorganic Chemistry and Materials
DOIOpen Access PDFOpenAlex
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