Back to Search Start Over

μ s isomers of Nd 158,160

μ s isomers of Nd 158,160

Authors :
Ideguchi, E.
Simpson, G.S.
Yokoyama, R.
Tanaka, M.
Nishimura, S.
Takeda, H.
Taprogge, J.
Vajta, Z.
University of Tokyo
Ministry of Science, ICT and Future Planning (South Korea)
National Research Foundation of Korea
Ministerio de Ciencia e Innovación (España)
Hungarian Scientific Research Fund
Japan Society for the Promotion of Science
RIKEN Nishina Center for Accelerator-Based Science
Source :
Digital.CSIC. Repositorio Institucional del CSIC, instname
Publication Year :
2016
Publisher :
American Physical Society, 2016.

Abstract

5 pags., 5 figs., 1 tab.<br />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. ©2016 American Physical Society<br />We acknowledge financial support from KAKENHI (25247045). This work was carried out at the RIBF operated by RIKEN Nishina Center, RIKEN and CNS, University of Tokyo.We acknowledge the EUROBALL Owners Committee for the loan of germanium detectors and the PreSpec Collaboration for the readout electronics of the cluster detectors. Part of the WAS3ABi was supported by the Rare Isotope Science Project which is funded by the Ministry of Science, ICT and Future Planning (MSIP) and National Research Foundation (NRF) of Korea. This work was supported by the Spanish Ministerio de Ciencia e Innovación under Contracts No. FPA2009-13377-C02 and FPA2011-29854-C04 and the Hungarian Research Fund (OTKA), Contract No. K100835.

Details

Database :
OpenAIRE
Journal :
Digital.CSIC. Repositorio Institucional del CSIC, instname
Accession number :
edsair.dedup.wf.001..ed369c39f35469a851dbffd4e12bf622