A1 Journal article (refereed)
133In : A Rosetta Stone for Decays of r-Process Nuclei (2023)

Xu, Z. Y., Madurga, M., Grzywacz, R., King, T. T., Algora, A., Andreyev, A. N., Benito, J., Berry, T., Borge, M. J. G., Costache, C., De Witte, H., Fijalkowska, A., Fraile, L. M., Fynbo, H. O. U., Gottardo, A., Halverson, C., Harkness-Brennan, L. J., Heideman, J., Huyse, M., Illana, A., Janiak, Ł., Judson, D. S., Korgul, A., Kurtukian-Nieto, T., Lazarus, I., Lică, R., Lozeva, R., Marginean, N., Marginean, R., Mazzocchi, C., Mihai, C., Mihai, R. E., Morales, A. I., Page, R. D., Pakarinen, J., Piersa-Siłkowska, M., Podolyák, Zs., Sarriguren, P., Singh, M., Sotty Ch., Stepaniuk, M., Tengblad, O., Turturica, A., Van Duppen, P., Vedia, V., Viñals, S., Warr, N., Yokoyama, R., Yuan C. X. (2023). 133In : A Rosetta Stone for Decays of r-Process Nuclei. Physical Review Letters, 131, Article 022501. https://doi.org/10.1103/PhysRevLett.131.022501

JYU authors or editors

Publication details

All authors or editors: Xu, Z. Y.; Madurga, M.; Grzywacz, R.; King, T. T.; Algora, A.; Andreyev, A. N.; Benito, J.; Berry, T.; Borge, M. J. G.; Costache, C.; et al.

Journal or series: Physical Review Letters

ISSN: 0031-9007

eISSN: 1079-7114

Publication year: 2023

Publication date: 14/07/2023

Volume: 131

Article number: 022501

Publisher: American Physical Society (APS)

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1103/PhysRevLett.131.022501

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/88530

Abstract

The β decays from both the ground state and a long-lived isomer of 133In were studied at the ISOLDE Decay Station (IDS). With a hybrid detection system sensitive to β, γ, and neutron spectroscopy, the comparative partial half-lives (logft) have been measured for all their dominant β-decay channels for the first time, including a low-energy Gamow-Teller transition and several first-forbidden (FF) transitions. Uniquely for such a heavy neutron-rich nucleus, their β decays selectively populate only a few isolated neutron unbound states in 133Sn. Precise energy and branching-ratio measurements of those resonances allow us to benchmark β-decay theories at an unprecedented level in this region of the nuclear chart. The results show good agreement with the newly developed large-scale shell model (LSSM) calculations. The experimental findings establish an archetype for the β decay of neutron-rich nuclei southeast of 132Sn and will serve as a guide for future theoretical development aiming to describe accurately the key β decays in the rapid-neutron capture (r-) process.

Keywords: nuclear physics; spectroscopy

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Ministry reporting: Yes

VIRTA submission year: 2023

JUFO rating: 3