Identification of a 6.6μs isomeric state in 175Ir
- Gillespie, S. A.
- Andreyev, A. N.
- Monthery, M. Al
- Barton, C. J.
- Antalic, S.
- Auranen, Kalle
- Badran, Hussam
- Cox, Daniel
- Cubiss, J. G.
- O’Donnell, D.
- Grahn, Tuomas
- Greenlees, Paul
- Herzan, Andrej
- Higgins, E.
- Julin, Rauno
- Juutinen, Sakari
- Klimo, J.
- Konki, Joonas
- Leino, Matti
- Mallaburn, Michael
- Pakarinen, Janne
- Papadakis, Philippos
- Partanen, Jari
- Prajapati, P. M.
- Rahkila, Panu
- Sandzelius, Mikael
- Scholey, Catherine
- Sorri, Juha
- Stolze, Sanna
- Urban, R.
- Uusitalo, Juha
- Venhart, M.
- Weaving, F.
DOIAbstract
An experiment has been performed to study excited states in the neutron-deficient nucleus 175Ir via the use of the JUROGAM II high-purity germanium detector array and the RITU gas-filled separator at JYFL, Jyväskylä. By using isomer tagging, an isomeric state with a half-life of 6.58(15) μs has been observed in 175Ir for the first time. It has been established that the isomer decays via a 45.2 (E1)–26.1 (M1) keV cascade to new states below the previously reported ground state in 175Ir with Iπ = (5/2−). We now reassign this (5/2−) state to the isomeric state discovered in this study.peerReviewe
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