β-decay of neutron-rich Z∼60 nuclei and the origin of rare earth elements

J. Wu, S. Nishimura, G. Lorusso, Z. Y. Xu, H. Baba, F. Browne, R. Daido, P. Doornenbal, Y. F. Fang, E. Ideguchi, T. Isobe, Z. Li, Z. Patel, S. Rice, G. Simpson, L. Sinclair, P. A. Söderström, T. Sumikama, H. Watanabe, A. YagiR. Yokoyama, N. Aoi, F. L.Bello Garrote, G. Benzoni, G. Gey, A. Gottardo, H. Nishibata, A. Odahara, H. Sakurai, M. Tanaka, J. Taprogge, T. Yamamoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

A large fraction of the rare-earth elements observed in the solar system is produced in the astrophysical rapid neutron capture process (r-process). However, current stellar models cannot completely explain the relative abundance of these elements partially because of nuclear physics uncertainties. To address this problem, a β-decay spectroscopy experiment was performed at RI Beam Factory (RIBF) at RIKEN, aimed at studying a wide range of very neutron-rich nuclei with Z∼60 that are progenitors of the rare-earth elements with mass number A∼460. The experiment provides a test of nuclear models as well as experimental inputs for r-process calculations. This contribution presents the experimental setup and some preliminary results of the experiment.

Original languageEnglish
Title of host publicationOrigin of Matter and Evolution of Galaxies 2013 - Proceedings of the 12th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG 2013
PublisherAmerican Institute of Physics Inc.
Pages388-393
Number of pages6
ISBN (Print)9780735412286
DOIs
Publication statusPublished - 2014
Event12th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG 2013 - Tsukuba, Japan
Duration: Nov 18 2013Nov 21 2013

Publication series

NameAIP Conference Proceedings
Volume1594
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other12th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG 2013
CountryJapan
CityTsukuba
Period11/18/1311/21/13

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Wu, J., Nishimura, S., Lorusso, G., Xu, Z. Y., Baba, H., Browne, F., Daido, R., Doornenbal, P., Fang, Y. F., Ideguchi, E., Isobe, T., Li, Z., Patel, Z., Rice, S., Simpson, G., Sinclair, L., Söderström, P. A., Sumikama, T., Watanabe, H., ... Yamamoto, T. (2014). β-decay of neutron-rich Z∼60 nuclei and the origin of rare earth elements. In Origin of Matter and Evolution of Galaxies 2013 - Proceedings of the 12th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG 2013 (pp. 388-393). (AIP Conference Proceedings; Vol. 1594). American Institute of Physics Inc.. https://doi.org/10.1063/1.4874099