Decay studies of new isomeric states in 255No
Bronis, A., Heßberger, F. P., Antalic, S., Andel, B., Ackermann, D., Heinz, S., Hofmann, S., Khuyagbaatar, J., Kindler, B., Kojouharov, I., Kuusiniemi, P., Leino, M., Lommel, B., Mann, R., Nishio, K., Popeko, A. G., Streicher, B., Sulignano, B., Uusitalo, J., . . . Yeremin, A. V. (2022). Decay studies of new isomeric states in 255No. Physical Review C, 106(1), Article 014602. https://doi.org/10.1103/PhysRevC.106.014602
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2022Copyright
©2022 American Physical Society
The decay of excited states in 255No was investigated by applying the evaporation-residue–conversion-electron correlation technique. Two new isomeric states were observed in 255No together with the previously known one. Excitation energies of the isomeric states were estimated based on the energies of conversion electrons and γ rays from correlation chains. These results were in accord with theoretical calculations based on the mean-field models. A tentative decay scheme of isomeric states in 255No is proposed, and their Nilsson configurations are discussed. The energy decrease of the 11/2−[725] Nilsson level for heavy N=153 isotones as a function of increasing proton number is confirmed.
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American Physical Society (APS)ISSN Search the Publication Forum
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Four of us, A.B., B.A., S.A., and M.V., were supported by the Slovak Research and Development Agency (Contracts No. APVV-18-0268 and No. APVV-20-0532) and by the Slovak grant agency VEGA (Contracts No. 1/0651/21 and No. 2/0067/21). M.V. acknowledges funding from the ESET Foundation, Slovakia.License
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