Octupole correlations in the N = Z + 2 = 56 110Xe nucleus
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
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Physics Letters BDate
2024Copyright
© 2024 the Authors
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.
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ElsevierISSN Search the Publication Forum
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https://converis.jyu.fi/converis/portal/detail/Publication/194822867
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European Commission; Research Council of FinlandFunding program(s)
Academy Project, AoF
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Additional information about funding
This work was supported by the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 847635, by the Academy of Finland (Finland) Grant No. 307685, by the European Union's Horizon 2020 research and innovation program under grant agreement No. 771036 (ERC CoG MAIDEN), by the Spanish MICINN under PGC2018-094583-B-I00 and PID2021-127890NB-I00, by MCIN/AEI/ 10.13039/501100011033 Spain with grant PID2020-118265GB-C42, by Generalitat Valenciana, Spain with grants PROMETEO/2019/005 and CIAPOS/2021/114 and by the EU FEDER funds. The authors acknowledge the support of GAMMAPOOL for the loan of the jurogam 3 detectors and the support of the GSI-Darmstadt computing facility. ...License
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