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Título: | New isomers in 125Pd79 and 127Pd81: Competing proton and neutron excitations in neutron-rich palladium nuclides towards the N = 82 shell closure |
Autor: | Watanabe, H.; Wang, H. K.; Lorusso, G.; Nishimura, S.; Xu, Z. Y.; Sumikama, T.; Söderström, P.A.; Doornenbal, P.; Browne, F.; Gey, G.; Jung, H.S.; Taprogge, J. CSIC ORCID; Vajta, Z.; Wu, J.; Yagi, A.; Baba, H.; Benzoni, G.; Chae, K.Y.; Crespi, F.C.L.; Fukuda, N.; Gernhäuser, R.; Inabe, N.; Isobe, T.; Jungclaus, Andrea CSIC ORCID; Kameda, D.; Kim, G. D.; Kim, Y. K.; Kojouharov, I.; Kondev, F.G.; Kubo, T.; Kurz, N.; Kwon, Y.K.; Lane, G.J.; Li, Z.; Moon, C.B.; Montaner-Pizá, A. CSIC; Moschner, K.; Naqvi, F.; Niikura, M.; Nishibata, H.; Nishimura, D.; Odahara, A.; Orlandi, R. CSIC ORCID; Patel, Z.; Podolyák, Z.; Sakurai, H.; Schaffner, H.; Simpson, G.S.; Steiger, K. | Fecha de publicación: | may-2019 | Editor: | Elsevier BV | Citación: | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 792: 263- 268 (2019) | Resumen: | The neutron-rich isotopes of palladium have attracted considerable interest in terms of the evolution of the N=82 neutron shell closure and its influence on the r-process nucleosynthesis. In this Letter, we present the first spectroscopic information on the excited states in Pd and Pd studied using the EURICA γ-ray spectrometer, following production via in-flight fission of a high-intensity U beam at the RIBF facility. New isomeric states with half-lives of 144(4) ns and 39(6) μs have been assigned spins and parities of (23/2 ) and (19/2 ) in Pd and Pd, respectively. The observed level properties are compared to a shell-model calculation, suggesting the competition between proton excitations and neutron excitations in the proton-hole and neutron-hole systems in the vicinity of the doubly magic nucleus Sn. | URI: | http://hdl.handle.net/10261/196631 | DOI: | 10.1016/j.physletb.2019.03.053 | Identificadores: | doi: 10.1016/j.physletb.2019.03.053 issn: 0370-2693 |
Aparece en las colecciones: | (IFIC) Artículos (CFMAC-IEM) Artículos |
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