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Seniority structure in neutron-rich nucleus $$^{128}$$Ag; Evidence for robustness of $$N$$=82 shell closure in silver isotopes

Luo, D. W.*; Zhang, J. Z.*; Li, Z. H.*; Orlandi, R.   ; 64 of others*

The first spectroscopic study of the neutron-rich $$^{128}$$Ag isotope at RIBF-RIKEN revealed a new 1.60(7) $$mu$$s seniority isomer with a proposed 16$$^{-}$$ spin-parity. Shell model calculations accurately describe its level structure, consistent with seniority schemes in nearby odd-odd nuclei. Level inversions between $$^{128}$$Ag and $$^{130}$$In's lowest states are linked to seniority-nonconserving interactions. The structure above 10$$^{-}$$ shows similarities to seniority structures in $$^{128}$$Pd and $$^{130}$$Cd, confirming the robustness of the $$N$$=82 shell closure in silver isotopes.

Language

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English

Journal

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Physical Review Letters

Volume

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134

Number

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23

Pages

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p.232502_1 - 232502_7

Publication Year/Month

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2025/06

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Paper URL

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https://doi.org/10.1103/wq9m-trj8

DOI for research data

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Keywords

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no keyword

Research Facility

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Press Release

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JAEA R&D Navigator

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Accesses

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- Accesses

InCites™

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Percentile:81.47

Category:Physics, Multidisciplinary

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