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

Mohammad F. Alshudifat; R. Grzywacz; K. P. Rykaczewski; C. J. Gross; K. Miernik; J. A. Winger; D. Miller; S. V. Paulauskas; M. Wolińska-Cichocka; E. F. Zganjar; J. C. Batchelder; N. T. Brewer; A. Korgul; C. Mazzocchi; A. J. Mendez; Y. Liu; D. W. Stracener; M. Madurga

doi:10.1016/j.nuclphysa.2026.123359

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

Mohammad F. Alshudifat
, R. Grzywacz
, K. P. Rykaczewski
, C. J. Gross
, K. Miernik
, J. A. Winger
, D. Miller
, S. V. Paulauskas
, M. Wolińska-Cichocka
, E. F. Zganjar
, J. C. Batchelder
, N. T. Brewer
, A. Korgul
, C. Mazzocchi
, A. J. Mendez
, Y. Liu
, D. W. Stracener
, M. Madurga

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Article number	123359
Journal	Nuclear Physics A
Volume	1069
DOIs	https://doi.org/10.1016/j.nuclphysa.2026.123359
State	Published - May 2026

Funding

We gratefully acknowledge the hard work of the operations staff of HRIBF in delivering the high-intensity proton beams. This work was supported by the U.S. Department of Energy Office of Nuclear Physics under contracts DE-FG02-96ER40983 (UTK),DE-SC00-144448, DE-AC05-00OR22725 (ORNL), and by the National Nuclear Security Administration under the Stewardship Science Academic Alliances program through DOE Cooperative Agreement No. DE-FG52-08NA28552, and by the Polish National Science Center under Grant No. 2020/39/B/ST2/02346. This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).

Keywords

3HEN
83Ga
Beta decay

Access to Document

10.1016/j.nuclphysa.2026.123359

Cite this

Alshudifat, M. F., Grzywacz, R., Rykaczewski, K. P., Gross, C. J., Miernik, K., Winger, J. A., Miller, D., Paulauskas, S. V., Wolińska-Cichocka, M., Zganjar, E. F., Batchelder, J. C., Brewer, N. T., Korgul, A., Mazzocchi, C., Mendez, A. J., Liu, Y., Stracener, D. W., & Madurga, M. (2026). Excited states in semi-magic ⁸²Ge populated in the βn-decay of ⁸³Ga. Nuclear Physics A, 1069, Article 123359. https://doi.org/10.1016/j.nuclphysa.2026.123359

@article{297ae35b68414110ae02941184567da2,

title = "Excited states in semi-magic 82Ge populated in the βn-decay of 83Ga",

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.",

keywords = "3HEN, 83Ga, Beta decay",

author = "Alshudifat, \{Mohammad F.\} and R. Grzywacz and Rykaczewski, \{K. P.\} and Gross, \{C. J.\} and K. Miernik and Winger, \{J. A.\} and D. Miller and Paulauskas, \{S. V.\} and M. Woli{\'n}ska-Cichocka and Zganjar, \{E. F.\} and Batchelder, \{J. C.\} and Brewer, \{N. T.\} and A. Korgul and C. Mazzocchi and Mendez, \{A. J.\} and Y. Liu and Stracener, \{D. W.\} and M. Madurga",

note = "Publisher Copyright: {\textcopyright} 2026 Elsevier B.V.",

year = "2026",

month = may,

doi = "10.1016/j.nuclphysa.2026.123359",

language = "English",

volume = "1069",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "Elsevier",

}

Alshudifat, MF, Grzywacz, R, Rykaczewski, KP, Gross, CJ, Miernik, K, Winger, JA, Miller, D, Paulauskas, SV, Wolińska-Cichocka, M, Zganjar, EF, Batchelder, JC, Brewer, NT, Korgul, A, Mazzocchi, C, Mendez, AJ, Liu, Y, Stracener, DW & Madurga, M 2026, 'Excited states in semi-magic ⁸²Ge populated in the βn-decay of ⁸³Ga', Nuclear Physics A, vol. 1069, 123359. https://doi.org/10.1016/j.nuclphysa.2026.123359

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T1 - Excited states in semi-magic 82Ge populated in the βn-decay of 83Ga

AU - Alshudifat, Mohammad F.

AU - Grzywacz, R.

AU - Rykaczewski, K. P.

AU - Gross, C. J.

AU - Miernik, K.

AU - Winger, J. A.

AU - Miller, D.

AU - Paulauskas, S. V.

AU - Wolińska-Cichocka, M.

AU - Zganjar, E. F.

AU - Batchelder, J. C.

AU - Brewer, N. T.

AU - Korgul, A.

AU - Mazzocchi, C.

AU - Mendez, A. J.

AU - Liu, Y.

AU - Stracener, D. W.

AU - Madurga, M.

PY - 2026/5

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N2 - 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.

AB - 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.

KW - 3HEN

KW - 83Ga

KW - Beta decay

UR - https://www.scopus.com/pages/publications/105030722973

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DO - 10.1016/j.nuclphysa.2026.123359

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JO - Nuclear Physics A

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