Collectivity evolution in the neutron-rich Pd isotopes towards the N=82 shell closure
- Wang, H.
- Aoi, N.
- Takeuchi, S.
- Matsushita, M.
- Doornenbal, P.
- Motobayashi, T.
- Steppenbeck, D.
- Yoneda, K.
- Baba, H.
- Caceres, L.
- Dombradi, Zs.
- Kobayashi, K.
- Kondo, Y.
- Lee, J.
- Li, K.
- Liu, Hong
- Minakata, R.
- Nishimura, D.
- Otsu, H.
- Sakaguchi, S.
- Sakurai, H.
- Scheit, H.
- Sohler, D.
- Sun, Y.
- Tian, Z.
- Tanaka, R.
- Togano, Y.
- Vajta, Zs.
- Yang, Z.
- Yamamoto, T.
- Ye, Y.
- Yokoyama, R.
DOIAbstract
The neutron-rich, even-even 122,124,126Pd isotopes has been studied via in-beam gamma-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 2+ -> 0+ decays. In addition, a candidate for the 4+ state at 1164(20) keV was observed in 122Pd. The resulting Ex(2+) systematics are essentially similar to those of the Xe (Z=54) isotopic chain and theoretical prediction by IBM-2, suggesting no serious shell quenching in the Pd isotopes in the vicinity of N=82
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