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Blurring the Boundaries: Decays of Multiparticle Isomers at the Proton Drip Line

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Carroll, R. J., Page, R. D., Joss, D. T., Uusitalo, J., Darby, I. G., Andgren, K., Cederwall, B., Eeckhaudt, S., Grahn, T., Gray-Jones, C., Greenlees, P., Hadinia, B., Jones, P., Julin, R., Juutinen, S., Leino, M., Leppänen, A.-P., Nyman, M., O’Donnell, D., . . . Simpson, J. (2014). Blurring the Boundaries: Decays of Multiparticle Isomers at the Proton Drip Line. Physical Review Letters, 12(9), Article 092501. https://doi.org/10.1103/PhysRevLett.112.092501
Published in
Physical Review Letters
Authors
Carroll, R. J. |
Page, R. D. |
Joss, D. T. |
Uusitalo, Juha |
Darby, I. G. |
Andgren, K. |
Cederwall, B. |
Eeckhaudt, Sarah |
Grahn, Tuomas |
Gray-Jones, C. |
Greenlees, Paul |
Hadinia, B. |
Jones, Peter |
Julin, Rauno |
Juutinen, Sakari |
Leino, Matti |
Leppänen, Ari-Pekka |
Nyman, Markus |
O’Donnell, D. |
Pakarinen, Janne |
Rahkila, Panu |
Sandzelius, Mikael |
Sarén, Jan |
Scholey, Catherine |
Seweryniak, D. |
Simpson, J.
Date
2014
Discipline
FysiikkaKiihdytinlaboratorioPhysicsAccelerator Laboratory
Copyright
© 2014 American Physical Society. Published in this repository with the kind permission of the publisher.

 
A multiparticle spin-trap isomer has been discovered in the proton-unbound nucleus 158 73Ta85. The isomer mainly decays by γ-ray emission with a half-life of 6.1ð1Þ μs. Analysis of the γ-ray data shows that the isomer lies 2668 keV above the known 9þ state and has a spin 10ℏ higher and negative parity. This 19− isomer also has an 8644(11) keV, 1.4(2)% α-decay branch that populates the 9þ state in 154Lu. No proton-decay branch from the isomer was identified, despite the isomer being unbound to proton emission by 3261(14) keV. This remarkable stability against proton emission is compared with theoretical predictions, and the implications for the extent of observable nuclides are considered.
Publisher
American Physical Society
ISSN Search the Publication Forum
0031-9007
Keywords
total data readout great spectrometer
DOI
https://doi.org/10.1103/PhysRevLett.112.092501
URI

http://urn.fi/URN:NBN:fi:jyu-201602051455

Publication in research information system

https://converis.jyu.fi/converis/portal/detail/Publication/23755453

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