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Decay spectroscopy of 179 82 Pb 97 and evidence for a 9/2− intruder state in 179 81 Tl 98

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Badran, H., Scholey, C., Uusitalo, J., Auranen, K., Grahn, T., Greenlees, P., . . . 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), 064314. doi:10.1103/PhysRevC.96.064314
Published in
Physical Review C
Authors
Badran, Hussam |
Scholey, Catherine |
Uusitalo, Juha |
Auranen, Kalle |
Grahn, Tuomas |
Greenlees, Paul |
Herzan, Andrej |
Jakobsson, Ulrika |
Julin, Rauno |
Juutinen, Sakari |
Konki, Joonas |
Leino, Matti |
Mallaburn, Michael |
Pakarinen, Janne |
Papadakis, Philippos |
Partanen, Jari |
Peura, Pauli |
Rahkila, Panu |
Sandzelius, Mikael |
Sarén, Jan |
Sorri, Juha |
Stolze, Sanna
Date
2017
Copyright
©2017 American Physical Society. Published in this repository with the kind permission of the publisher.

 
The very neutron-deficient isobars 179 Pb and 179 Tl have been produced using the fusion-evaporation reactions 104 Pd ( 78 Kr , x p y n ), 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 179 Pb to be assigned as I π = 9 / 2 − . The decay of 179 Pb was measured to have an α -particle energy and half-life of E α = 7348 ( 5 ) keV and t 1 / 2 = 2.7 ( 2 ) ms, respectively. A search for a ν i 13 / 2 state in 179 Pb was performed, but only a limit of excitation energy and half-life was obtained. In 179 Tl a t 1 / 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. ...
Publisher
American Physical Society
ISSN Search the Publication Forum
2469-9985
Keywords
nuclear structures decays
DOI
10.1103/PhysRevC.96.064314
URI

http://urn.fi/URN:NBN:fi:jyu-201801021017

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