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Core-coupled states and split proton-neutron quasiparticle multiplets in 122-126Ag

AuthorsLalkovski, S.; Bruce, A.M.; Jungclaus, Andrea ; Modamio, V. ; Walker, P.M.; Zhekova, M.
Keywords[PACS] Spin, parity, and isobaric spin
nuclear energy levels
[PACS] Properties of nuclei
[PACS] Collective levels
[PACS] Lifetimes, widths
[PACS] Isomer decay.
γ transitions and level energies
Issue Date2013
PublisherAmerican Physical Society
CitationPhysical Review C - Nuclear Physics 87 (2013)
AbstractNeutron-rich silver isotopes were populated in the fragmentation of a 136Xe beam and the relativistic fission of 238U. The fragments were mass analyzed with the GSI Fragment Separator and subsequently implanted into a passive stopper. Isomeric transitions were detected by 105 high-purity germanium detectors. Eight isomeric states were observed in 122-126Ag nuclei. The level schemes of 122,123,125Ag were revised and extended with isomeric transitions being observed for the first time. The excited states in the odd-mass silver isotopes are interpreted as core-coupled states. The isomeric states in the even-mass silver isotopes are discussed in the framework of the proton-neutron split multiplets. The results of shell-model calculations, performed for the most neutron-rich silver nuclei are compared to the experimental data. © 2013 American Physical Society.
Identifiersdoi: 10.1103/PhysRevC.87.034308
issn: 0556-2813
Appears in Collections:(CFMAC-IEM) Artículos
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