A1 Journal article (refereed)
Decay spectroscopy of 179 82 Pb 97 and evidence for a 9/2− intruder state in 179 81 Tl 98 (2017)

Badran, H., Scholey, C., Uusitalo, J., Auranen, K., Grahn, T., Greenlees, P., Herzan, A., Jakobsson, U., Julin, R., Juutinen, S., Konki, J., Leino, M., Mallaburn, M., Pakarinen, J., Papadakis, P., Partanen, J., Peura, P., Rahkila, P., Sandzelius, M., . . . Stolze, S. (2017). Decay spectroscopy of 179 82 Pb 97 and evidence for a 9/2− intruder state in 179 81 Tl 98. Physical Review C, 96(6), Article 064314. https://doi.org/10.1103/PhysRevC.96.064314

JYU authors or editors

Publication details

All authors or editors: Badran, Hussam; Scholey, Catherine; Uusitalo, Juha; Auranen, Kalle; Grahn, Tuomas; Greenlees, Paul; Herzan, Andrej; Jakobsson, Ulrika; Julin, Rauno; Juutinen, Sakari; et al.

Journal or series: Physical Review C

ISSN: 2469-9985

eISSN: 2469-9993

Publication year: 2017

Volume: 96

Issue number: 6

Article number: 064314

Publisher: American Physical Society

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1103/PhysRevC.96.064314

Publication open access: Not open

Publication channel open access:

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/56584


The very neutron-deficient isobars 179Pb and 179Tl have been produced using the fusion-evaporation reactions 104Pd(78Kr,xpyn), where x≤1 and y≥2. The gas-filled separator RITU was employed to transport and separate the recoiling nuclei of interest from the scattered beam and unwanted products. The GREAT spectrometer was used to study the decay properties through α−α and α−γ correlations, which has allowed the ground state of 179Pb to be assigned as Iπ=9/2−. The decay of 179Pb was measured to have an α-particle energy and half-life of Eα=7348(5)keV and t1/2=2.7(2) ms, respectively. A search for a νi13/2 state in 179Pb was performed, but only a limit of excitation energy and half-life was obtained. In 179Tl a t1/2=114+18−10 ns isomeric state, likely at an excitation energy of 904.5(9) keV, was identified and is tentatively assigned to be a 9/2− proton intruder state.

Free keywords: nuclear structures; decays

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Ministry reporting: Yes

Reporting Year: 2017

JUFO rating: 2

Last updated on 2021-09-06 at 20:37