Octupole correlations in the N = Z+2=56 110Xe nucleus

This letter reports on the first observation of an octupole band in the neutron-deficient ( = + 2) nucleus 110Xe. The 110Xe nuclei were produced via the 54Fe(58Ni,2n) fusion-evaporation reaction. The emitted rays were detected using the JUROGAM 3 -ray spectrometer, while the fusion-evaporation resid...

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Detalhes bibliográficos
Autores: Illana Sisón, Andrés, Stramaccioni, D., Valiente-Dobón, J. J., Rodríguez Frutos, Tomás Raúl, 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., Kankainen, A., Leino, M., Louko, J., Luoma, M., Nesterenko, D., Ojala, J., Pakarinen, J., Rahkila, P., Ruotsalainen, P., Sandzelius, M., Sarén, J., Uusitalo, J., Zimba, G. L.
Formato: artículo
Fecha de publicación:2023
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/102917
Acesso em linha:https://hdl.handle.net/20.500.14352/102917
Access Level:acceso abierto
Palavra-chave:539.1
Octupole deformations
110Xe
N = Z = 56 region
Fusion evaporation reactions
Física nuclear
2207 Física Atómica y Nuclear
Descrição
Resumo:This letter reports on the first observation of an octupole band in the neutron-deficient ( = + 2) nucleus 110Xe. The 110Xe nuclei were produced via the 54Fe(58Ni,2n) fusion-evaporation reaction. The emitted rays were detected using the JUROGAM 3 -ray spectrometer, while the fusion-evaporation residues were separated with the MARA separator at the Accelerator Laboratory of the University of Jyväskylä, 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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