E0 transitions and O+ levels in 136Xe.
作者： P. F. Mantica , B. E. Zimmerman , W. B. Walters , K. Heyde
关键词: Physics 、 Atomic physics 、 Spectroscopy 、 Excitation 、 Gamma spectroscopy 、 Excited state 、 Radioactive decay
摘要: The {beta}{sup {minus}} decay of {sup 136}I isomers to levels in 136}Xe was studied using sources isolated at the on-line mass separator TRISTAN. Conversion-electron and gamma-ray singles data have been collected. Evidence for excited O{sup +} states 2582.4 4320 keV has obtained. A shell-model study elucidating salient features related first state {ital N}=82 nuclei carried out. Comparing two-particle, four-particle exact two-quasiparticle calculations both a Gaussian surface-delta interaction latter case, an explanation could be given Z} dependence E}{sub x}}(O{sub 2}{sup +}) excitation energy. We also calculate E}0 reduced matrix elements 134}Te.
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