Collectivity evolution in the neutron-rich Pd isotopes toward the N=82 shell closure

H. Wang, N. Aoi, S. Takeuchi, M. Matsushita, P. Doornenbal, T. Motobayashi, D. Steppenbeck, K. Yoneda, H. Baba, L. Cáceres, Zs Dombrádi, K. Kobayashi, Y. Kondo, J. Lee, K. Li, H. Liu, R. Minakata, D. Nishimura, H. Otsu, S. SakaguchiH. Sakurai, H. Scheit, D. Sohler, Y. Sun, Z. Tian, R. Tanaka, Y. Togano, Zs Vajta, Z. Yang, T. Yamamoto, Y. Ye, R. Yokoyama

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Abstract

The neutron-rich, even-even 122,124,126Pd isotopes were studied via in-beam γ-ray spectroscopy at the RIKEN Radioactive Isotope Beam Factory. Excited states at 499(9), 590(11), and 686(17) keV were found in the three isotopes, which we assign to the respective 21+→0gs+ decays. In addition, candidates for the 41+ states at 1164(20) and 1300(22) keV were observed in 122Pd and 124Pd, respectively. The resulting Ex(21+) systematics are similar to the Xe (Z=54) isotopic chain and theoretical predictions by the proton-neutron interacting boson model (IBM-2), indicating the magic nature of N=82 in the Pd isotopes.

Original languageEnglish
Article number054318
JournalPhysical Review C - Nuclear Physics
Volume88
Issue number5
DOIs
Publication statusPublished - Nov 19 2013

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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    Wang, H., Aoi, N., Takeuchi, S., Matsushita, M., Doornenbal, P., Motobayashi, T., Steppenbeck, D., Yoneda, K., Baba, H., Cáceres, L., Dombrádi, Z., Kobayashi, K., Kondo, Y., Lee, J., Li, K., Liu, H., Minakata, R., Nishimura, D., Otsu, H., ... Yokoyama, R. (2013). Collectivity evolution in the neutron-rich Pd isotopes toward the N=82 shell closure. Physical Review C - Nuclear Physics, 88(5), [054318]. https://doi.org/10.1103/PhysRevC.88.054318