Abstract
The decay properties of In133 were studied in detail at the ISOLDE Decay Station. The implementation of the Resonance Ionization Laser Ion Source allowed separate measurements of its 9/2+ ground state (In133g) and 1/2- isomer (In133m). With the use of β-delayed neutron and γ spectroscopy, the decay strengths above the neutron separation energy were quantified in this neutron-rich nucleus for the first time. The allowed Gamow-Teller transition 9/2+→7/2+ was located at 5.93 MeV in the In133g decay with a logft=4.7(1). In addition, several neutron-unbound states were populated at lower excitation energies by the first-forbidden decays of In133g,m. We assigned spins and parities to those neutron-unbound states based on the β-decay selection rules, the logft values, and systematics.
| Original language | English |
|---|---|
| Article number | 014314 |
| Journal | Physical Review C |
| Volume | 108 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jul 2023 |
Funding
We acknowledge the support of the ISOLDE Collaboration and technical teams. This project was supported by the European Unions Horizon 2020 research and innovation programme Grant Agreements No. 654002 (ENSAR2) and the Marie Skłodowska-Curie Grant Agreement No. 101032999 (BeLaPEx), by the Office of Nuclear Physics, U.S. Department of Energy under Awards No. DE-FG02-96ER40983 (UTK) and No. DE-AC05-00OR22725 (ORNL), by the National Nuclear Security Administration under the Stewardship Science Academic Alliances program through DOE Award No. DE-NA0002132, by the Romanian IFA project CERN-RO/ISOLDE, by the Research Foundation Flanders (FWO, Belgium), by the Interuniversity Attraction Poles Programme initiated by the Belgian Science Policy Office (BriX network P7/12), by the German BMBF under Contracts No. 05P18PKCIA and No. 05P21PKCI1 in Verbundprojekte 05P2018 and 05P2021, by the UK Science and Technology Facilities Research Council (STFC) of the UK Grants No. ST/R004056/1, No. ST/P004598/1, No. ST/P003885/1, No. ST/V001027/1, and No. ST/V001035/1, by National Natural Science Foundation of China under Grant No. 11775316, by the Polish National Science Center under Grant No. 2020/39/B/ST2/02346, by the Polish Ministry of Education and Science under Contract No. 2021/WK/07, by Spanish MCIN/AEI under Grants No. PGC2018-093636-B-I00, No. RTI2018-098868-B-I00, No. PID2019-104390GB-I00, No. PID2019-104714GB-C21, and No. PID2021-126998OB-I00, by Generalitat Valenciana, Conselleria de Innovación, Universidades, Ciencia y Sociedad Digital under Grant No. CISEJI/2022/25, by Universidad Complutense de Madrid (Spain) through Grupo de Física Nuclear under Grant No. 910059 and through the Predoctoral Grant No. CT27/16-CT28/16, and by the EU via NextGenerationEU funds.