Identification of a 6.6 μ s isomeric state in Ir 175

S. A. Gillespie, A. N. Andreyev, M. Al Monthery, C. J. Barton, S. Antalic, K. Auranen, H. Badran, D. Cox, J. G. Cubiss, D. O'Donnell, T. Grahn, P. T. Greenlees, A. Herzan, E. Higgins, R. Julin, S. Juutinen, J. Klimo, J. Konki, M. Leino, M. MallaburnJ. Pakarinen, P. Papadakis, J. Partanen, P. M. Prajapati, P. Rahkila, M. Sandzelius, C. Scholey, J. Sorri, S. Stolze, R. Urban, J. Uusitalo, M. Venhart, F. Weaving

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Sammanfattning

An experiment has been performed to study excited states in the neutron-deficient nucleus Ir175 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 Ir175 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 Ir175 with Iπ=(5/2-). We now reassign this (5/2-) state to the isomeric state discovered in this study.

Originalspråkengelska
Artikelnummer064310
TidskriftPhysical Review C
Volym99
Utgåva6
DOI
StatusPublished - 2019 juni

Ämnesklassifikation (UKÄ)

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