2026-06-28T20:40:13Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/243112023-08-28T18:57:58Zcom_20.500.14352_14col_20.500.14352_15

New lifetime measurements in Pd-109 and the onset of deformation at N=60 Olaizola, B. Fraile Prieto, Luis Mario Several new subnanosecond lifetimes were measured in Pd-109 using the fast-timing beta gamma gamma (t) method. Fission fragments of the A = 109 mass chain were produced by bombarding natural uranium with 30 MeV protons at the Jyvaskyla Ion Guide Isotope Separator On-Line (IGISOL) facility. Lifetimes were obtained for excited states in Pd-109 populated following beta decay of Rh-109. The new lifetimes provide some insight into the evolution of nuclear structure in this mass region. In particular, the distinct structure of the two low-lying 7/2(+) states occurring systematically across the Pd isotopic chain is supported by the new lifetime measurements. The available nuclear data indicate a sudden increase in deformation at N = 60 which is related to the strong p-n interaction between pi g(9/2) and vg(7/2) valence nucleons expected in this region. 2023-06-18T06:49:25Z 2023-06-18T06:49:25Z 2023-06-18T06:49:25Z 2015-12-14 journal article https://hdl.handle.net/20.500.14352/24311 0556-2813 10.1103/PhysRevC.92.064312 eng EURONS (506065) FPA-2013-41267-P PHY0822648 PHY0758100 DE-AC52-07NA27344 open access Amer Physical Soc