March 2026

Journal

Excited states in semi-magic 82Ge populated in the βn-decay of 83Ga

By:
Grzywacz, Robert K; Rykaczewski, Krzysztof P; Gross, Carl J; Miernik, Krzysztof A; Wolinska-Cichocka, Marzena
Journal Name:
Nuclear Physics A
Page Number:
123359
Volume:
1069
Publication Date:
March 16, 2026
View DOI Listing:
https://doi.org/10.1016/j.nuclphysa.2026.123359

Abstract

The βn and β-decay of the neutron-rich 83Ga isotopes produced in proton-induced fission of 238U were studied at the Holifield Radioactive Ion Beam Facility (HRIBF) at Oak Ridge National Laboratory using on-line mass separation and the hybrid-3Hen neutron-γ detector array. Excited states in semi-magic 82Ge populated in βn decay of 83Ga were identified using neutron-γ coincidences. The measured relative population of excited states in 82Ge is compared with a βn emission model, where the neutron emission model combines the strength distribution obtained from the shell-model calculations with the statistical Hauser-Feshbach model.


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