July 2016

Journal

Experimental study of the β-γ and β-nγ decay of the neutron-rich nucleus 85Ga

By:
Korgul, Agnieszka B; Rykaczewski, Krzysztof P; Grzywacz, Robert K; Sliwinska, H.; Batchelder, J.C.; Bingham, Carrol R; Borzov, Ivan N; Brewer, Nathan T; Cartegni, L.; Fijalkowska, A.; Gross, Carl J; Hamilton, J. H.; Jost, C.; Karny, M.; Krolas, W.; Liu, S; Mazzocchi, C.; Madurga, M.; Mendez Ii, Anthony J; Miernik, Krzysztof A; Miller, D; Padgett, Stephen; Paulauskas, Stanley; Shapira, Dan ; Stracener, Daniel W; Sieja, K.; Winger, J. A.; Wolinska-Cichocka, Marzena ; Zganjar, E. F.
Journal Name:
Physical Review C
Page Number:
44330
Volume:
88
Issue Number:
N/A
Publication Date:
July 8, 2016
View DOI Listing:
https://doi.org/10.1103/PhysRevC.88.044330

Abstract

The β-decay properties of neutron-rich 85Ga produced in proton-induced fission of 238U were studied at the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory. Data consisted of β−γ and β−γ−γ coincidences were collected at the Low-energy Radioactive Ion Beam Spectroscopy Station after high-resolution on-line mass separation. For the first time, the excited states in the N=53 isotone 85Ge were established from β-delayed γ decay of 85Ga. The level scheme of the N=52 isotone 84Ge was improved and includes now 0+, 2+, (2)+, 4+, and (0)+ states populated in the β-delayed-neutron-γ decay of 85Ga. Advanced shell-model calculations were used to analyze experimental data on 85Ge and 84Ge.

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