μ s isomers of Nd 158,160

E. Ideguchi, G. S. Simpson, R. Yokoyama, Mn Tanaka, S. Nishimura, P. Doornenbal, G. Lorusso, P. A. Söderström, T. Sumikama, J. Wu, Z. Y. Xu, N. Aoi, H. Baba, F. L. Bello Garrote, G. Benzoni, F. Browne, R. Daido, Y. Fang, N. Fukuda, A. GottardoG. Gey, S. Go, N. Inabe, T. Isobe, D. Kameda, K. Kobayashi, M. Kobayashi, I. Kojouharov, T. Komatsubara, T. Kubo, N. Kurz, I. Kuti, Z. Li, M. Matsushita, S. Michimasa, C. B. Moon, H. Nishibata, I. Nishizuka, A. Odahara, Z. Patel, S. Rice, E. Sahin, H. Sakurai, H. Schaffner, L. Sinclair, H. Suzuki, H. Takeda, J. Taprogge, Zs Vajta, H. Watanabe, A. Yagi

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Abstract

The neutron-rich nuclei Nd158,160 have been studied via delayed γ-ray spectroscopy of μs isomeric states at the RIBF facility, RIKEN. These nuclei were produced following the projectile fission of a 345 AMeVU238 beam and delayed γ rays were detected by the EURICA cluster Ge array. The isomeric states have measured half-lives of 339(20) ns and 1.63(21) μs for Nd158 and Nd160, respectively. From the observed γ decays and the systematics of levels in the neighboring Nd isotopes first level schemes were constructed for these nuclei. The isomeric states of Nd158,160 have been assigned spins of (6-) and (4-), with proposed ν5/2[523]' - ν7/2[633] and ν1/2[521]' - ν7/2[633] configurations, respectively.

Original languageEnglish
Article number064322
JournalPhysical Review C
Volume94
Issue number6
DOIs
Publication statusPublished - Dec 27 2016
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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    Ideguchi, E., Simpson, G. S., Yokoyama, R., Tanaka, M., Nishimura, S., Doornenbal, P., Lorusso, G., Söderström, P. A., Sumikama, T., Wu, J., Xu, Z. Y., Aoi, N., Baba, H., Bello Garrote, F. L., Benzoni, G., Browne, F., Daido, R., Fang, Y., Fukuda, N., ... Yagi, A. (2016). μ s isomers of Nd 158,160. Physical Review C, 94(6), [064322]. https://doi.org/10.1103/PhysRevC.94.064322