A1 Journal article (refereed)
Octupole correlations in the N = Z + 2 = 56 110Xe nucleus (2024)

Illana, A., Pérez-Vidal, R.M., Stramaccioni, D., Valiente-Dobón, J.J., Rodriguez, T.R., Robledo, L.M., Poves, A., Auranen, K., Beliuskina, O., Delafosse, C., Eronen, T., Ge, Z., Geldhof, S., Gins, W., Grahn, T., Greenlees, P.T., Joukainen, H., Julin, R., Jutila, H., . . . Zimba, G.L. (2024). Octupole correlations in the N = Z + 2 = 56 110Xe nucleus. Physics Letters B, 848, Article 138371. https://doi.org/10.1016/j.physletb.2023.138371

JYU authors or editors

Publication details

All authors or editors: Illana, A.; Pérez-Vidal, R.M.; Stramaccioni, D.; Valiente-Dobón, J.J.; Rodriguez, T.R.; Robledo, L.M.; Poves, A.; Auranen, K.; Beliuskina, O.; Delafosse, C.; et al.

Journal or series: Physics Letters B

ISSN: 0370-2693

eISSN: 1873-2445

Publication year: 2024

Publication date: 04/12/2023

Volume: 848

Article number: 138371

Publisher: Elsevier

Publication country: Netherlands

Publication language: English

DOI: https://doi.org/10.1016/j.physletb.2023.138371

Publication open access: Openly available

Publication channel open access: Open Access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/92763

Abstract

This letter reports on the first observation of an octupole band in the neutron-deficient (N = Z + 2) nucleus 110Xe. The 110Xe nuclei were produced via the 54Fe(58Ni,2n) fusion-evaporation reaction. The emitted γ rays were detected using the jurogam 3 γ-ray spectrometer, while the fusion-evaporation residues were separated with the MARA separator at the Accelerator Laboratory of the University of Jyvaskyl ¨ a, Finland. The experimental observation of the ¨ low-lying 3− and 5− states and inter-band E1 transitions between the ground-state band and the octupole band proves the importance of octupole correlations in this region. These new experimental data combined with theoretical calculations using the symmetry-conserving configuration-mixing method, based on a Gogny energy density functional, have been interpreted as an evidence of enhanced octupole correlations in neutron-deficient xenon isotopes.

Keywords: nuclear physics; xenon

Free keywords: octupole deformations; 110Xe; N = Z = 56 region; fusion evaporation reactions

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Ministry reporting: Yes

VIRTA submission year: 2023

JUFO rating: 3