Probing single-particle structures beyond the proton drip line
- Oliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool, L69 7ZE (United Kingdom)
- Department of Physics, University of Jyvaeskylae, PO Box 35, FIN-40014, Jyvaeskylae (Finland)
Single-particle energies have been investigated in the closed neutron shell proton emitter {sup 155}Ta. The {sup 155}Ta nuclei were populated through the {alpha} decay of {sup 159}Re, which has been observed for the first time. The {sup 159}Re nuclei were produced in reactions of 300 MeV {sup 58}Ni ions with an isotopically enriched {sup 106}Cd target, separated in-flight using the RITU separator and implanted into the GREAT spectrometer. The {sup 159}Re {alpha} decay emanates from the proton-emitting {pi}h{sub 11/2} state and populates a state in {sup 155}Ta which decays by the emission of a proton from a {pi}h{sub 11/2} orbital. The results fit in with the systematics of proton and {alpha}-particle separation energies in the region, but disagree with the previously reported decay properties of {sup 155}Ta.
- OSTI ID:
- 21039451
- Journal Information:
- AIP Conference Proceedings, Vol. 961, Issue 1; Conference: PROCON 2007: International conference on proton emitting nuclei and related topics, Lisbon (Portugal), 17-23 Jun 2007; Other Information: DOI: 10.1063/1.2827246; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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