Excited levels in the multishaped 117Pd nucleus studied via β decay of 117Rh
Kurpeta, J., Płochocki, A., Urban, W., Eronen, T., Jokinen, A., Kankainen, A., Kolhinen, V., Moore, I., Penttilä, H., Pomorski, M., Rinta-Antila, S., Rzaca-Urban, T., & Wisniewski, J. (2018). Excited levels in the multishaped 117Pd nucleus studied via β decay of 117Rh. Physical Review C, 98(2), Article 024318. https://doi.org/10.1103/PhysRevC.98.024318
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2018Copyright
© 2018 American Physical Society
Monoisotopic samples of exotic, neutron-rich 117Rh nuclei, produced in the proton-induced fission of 238U
and separated using the IGISOL mass separator coupled to the JYFLTRAP Penning trap, were used to perform
β and γ coincidence spectroscopy of 117Pd. The spin parity of the ground state of 117Pd was determined to be
1/2+ and the 19.1 ms isomer at 203.2 keV was assigned a spin-parity 7/2−. The 117Rh β−-decay scheme was
considerably extended, and various sequences of the levels were interpreted as resulting from the prolate, oblate,
and triaxial nuclear shapes. Some of the β− decays were considered as the allowed Gamow-Teller transitions.
The experimental distribution of Gamow-Teller strength is discussed.
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American Physical SocietyISSN Search the Publication Forum
2469-9985Keywords
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