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

H. Wang et al.
Phys. Rev. C 88, 054318 – Published 19 November 2013

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.

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  • Received 11 June 2013

DOI:https://doi.org/10.1103/PhysRevC.88.054318

©2013 American Physical Society

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Vol. 88, Iss. 5 — November 2013

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