Isomeric 13/2+ state in 201Fr
Auranen, K., Jakobsson, U., Badran, H., Grahn, T., Greenlees, P. T., Herzán, A., Julin, R., Juutinen, S., Konki, J., Leino, M., Leppänen, A.-P., O'Neill, G., Pakarinen, J., Papadakis, P., Partanen, J., Rahkila, P., Ruotsalainen, P., Sandzelius, M., Sarén, J., . . . Voss, A. (2020). Isomeric 13/2+ state in 201Fr. Physical Review C, 101(2), Article 024306. https://doi.org/10.1103/PhysRevC.101.024306
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Physical Review CAuthors
Date
2020Discipline
FysiikkaYdin- ja kiihdytinfysiikan huippuyksikköKiihdytinlaboratorioPhysicsCentre of Excellence in Nuclear and Accelerator Based PhysicsAccelerator LaboratoryCopyright
©2020 American Physical Society
We have identified an isomeric state in 201Fr for which we propose a spin and parity of 13/2 +, and interpret it as arising from the π(i13/2 ) configuration. A half-life of 720(40) ns was measured, corresponding to B(M2) = 0.17(2) W.u., in good agreement with those of other 13/2 + → 9/2 − [π(i13/2 ) → π(h9/2 )] transitions observed in other nuclei in the region. The nuclei of interest were produced in a fusion-evaporation reaction and their decay properties were investigated using the GREAT spectrometer at the focal plane of the RITU gas-filled recoil separator.
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American Physical SocietyISSN Search the Publication Forum
2469-9985Keywords
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https://converis.jyu.fi/converis/portal/detail/Publication/34682065
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Postdoctoral Researcher, AoFAdditional information about funding
This work was supported by the Academy of Finland under Contracts No. 213503 (Finnish Center of Excellence Programme) and No. 323710 (Personal research project, K.A.). The authors also thank the GAMMAPOOL European Spectroscopy Resource for the loan of the germanium detectors. The contribution of A.H. was supported by the Slovak Research and Development Agency (Contract No. APVV-15-0225), the Slovak grant agency VEGA (Contract No. 2/0129/17), and the project ITMS code 26210120023, supported by the Research and Development Operational Programme funded by ERDF (30%). ...License
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