6533b82cfe1ef96bd12902f5

RESEARCH PRODUCT

Identification of a 6.6μs isomeric state in 175Ir

S. A. GillespieA. N. AndreyevM. Al MontheryC. J. BartonS. AntalicKalle AuranenHussam BadranDaniel CoxJ. G. CubissD. O’donnellTuomas GrahnPaul GreenleesAndrej HerzanE. HigginsRauno JulinSakari JuutinenJ. KlimoJoonas KonkiMatti LeinoMichael MallaburnJanne PakarinenPhilippos PapadakisJari PartanenP. M. PrajapatiPanu RahkilaMikael SandzeliusCatherine ScholeyJuha SorriSanna StolzeR. UrbanJuha UusitaloM. VenhartF. Weaving

subject

lifetimes and widthsisomer decaysnuclear structure and decays

description

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

yearjournalcountryeditionlanguage
2019-01-01
http://urn.fi/URN:NBN:fi:jyu-201906263459