Identification of a 6.6μs isomeric state in 175Ir

Autor: 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.
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Popis: 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. peerReviewed
Databáze: OpenAIRE