Experimental study of β and β-n decay of the neutron-rich N=54 isotone As87

doi:https://doi.org/10.1103/PhysRevC.92.054318

Title: Experimental study of $β$ and $β - n$ decay of the neutron-rich $N = 54$ isotone ${}^{87}{As}$

Abstract

The β-decay properties of neutron-rich ⁸⁷As produced in the proton-induced fission of ²³⁸U were studied at the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory. The low-energy excited states in N = 53 ⁸⁷Se and N = 52 ⁸⁶Se were identified through β - γ and β-delayed neutron-γ decay of ⁸⁷As , respectively. In conclusion, the experimental systematics of low-energy levels of N = 53 isotones, Z = 34 ⁸⁷Se, and Z = 32 ⁸⁵Ge, and along with an analysis of shell-model calculations, allow us to discuss the main features of excited states expected for the next N = 53 isotone, ⁸³Zn .

Authors:

Korgul, A. ^[1]; Rykaczewski, Krzysztof Piotr ^[2]; Grzywacz, R. ^[3]; Bingham, C. R. ^[3]; Brewer, Nathan T. ^[4]; Ciemny, A. A. ^[1]; Gross, Carl J. ^[2]; Jost, C. ^[5]; Karny, M. ^[6]; Madurga, M. ^[5]; Mazzocchi, C. ^[1]; Mendez, A. J. ^[2]; Miernik, K. ^[7]; Miller, D. ^[5]; Padgett, S. ^[5]; Paulauskas, S. V. ^[5]; Stracener, D. W. ^[2]; Wolińska-Cichocka, M. ^[8]

Univ. of Warsaw (Poland). Faculty of Physics
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division
Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division
Vanderbilt Univ., Nashville, TN (United States). Department of Physics and Astronomy
Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
Univ. of Warsaw (Poland). Faculty of Physics; Oak Ridge Associated Univ., Oak Ridge, TN (United States)
Univ. of Warsaw (Poland). Faculty of Physics; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division
Univ. of Warsaw (Poland). Heavy Ion Laboratory; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division ; Oak Ridge Associated Univ., Oak Ridge, TN (United States)

Publication Date:: 2015-11-23

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)

OSTI Identifier:: 1341548

Alternate Identifier(s):: OSTI ID: 1226856

Grant/Contract Number:: AC05-00OR22725; FG02-96ER41006; FG02-96ER40983; AC05-06OR23100; FG05-88ER40407; FG02-96ER40978; FC03-03NA00143; DEFC03-03NA00143

Resource Type:: Journal Article: Accepted Manuscript

Journal Name:: Physical Review. C, Nuclear Physics

Additional Journal Information:: Journal Volume: 92; Journal Issue: 5; Journal ID: ISSN 0556-2813

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats


                    Korgul, A., Rykaczewski, Krzysztof Piotr, Grzywacz, R., Bingham, C. R., Brewer, Nathan T., Ciemny, A. A., Gross, Carl J., Jost, C., Karny, M., Madurga, M., Mazzocchi, C., Mendez, A. J., Miernik, K., Miller, D., Padgett, S., Paulauskas, S. V., Stracener, D. W., and Wolińska-Cichocka, M. Experimental study of β and β-n decay of the neutron-rich N=54 isotone As87.  United States: N. p., 2015. 
        Web.  doi:10.1103/PhysRevC.92.054318.

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                    Korgul, A., Rykaczewski, Krzysztof Piotr, Grzywacz, R., Bingham, C. R., Brewer, Nathan T., Ciemny, A. A., Gross, Carl J., Jost, C., Karny, M., Madurga, M., Mazzocchi, C., Mendez, A. J., Miernik, K., Miller, D., Padgett, S., Paulauskas, S. V., Stracener, D. W., & Wolińska-Cichocka, M. Experimental study of β and β-n decay of the neutron-rich N=54 isotone As87.  United States.  https://doi.org/10.1103/PhysRevC.92.054318

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                    Korgul, A., Rykaczewski, Krzysztof Piotr, Grzywacz, R., Bingham, C. R., Brewer, Nathan T., Ciemny, A. A., Gross, Carl J., Jost, C., Karny, M., Madurga, M., Mazzocchi, C., Mendez, A. J., Miernik, K., Miller, D., Padgett, S., Paulauskas, S. V., Stracener, D. W., and Wolińska-Cichocka, M. Mon .  
        "Experimental study of β and β-n decay of the neutron-rich N=54 isotone As87".  United States.  https://doi.org/10.1103/PhysRevC.92.054318.  https://www.osti.gov/servlets/purl/1341548.

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@article{osti_1341548,

  title        = {Experimental study of β and β-n decay of the neutron-rich N=54 isotone As87},

  author       = {Korgul, A. and Rykaczewski, Krzysztof Piotr and Grzywacz, R. and Bingham, C. R. and Brewer, Nathan T. and Ciemny, A. A. and Gross, Carl J. and Jost, C. and Karny, M. and Madurga, M. and Mazzocchi, C. and Mendez, A. J. and Miernik, K. and Miller, D. and Padgett, S. and Paulauskas, S. V. and Stracener, D. W. and Wolińska-Cichocka, M.},

  abstractNote = {The β-decay properties of neutron-rich 87As produced in the proton-induced fission of 238U were studied at the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory. The low-energy excited states in N = 53 87Se and N = 52 86Se were identified through β - γ and β-delayed neutron-γ decay of 87As , respectively. In conclusion, the experimental systematics of low-energy levels of N = 53 isotones, Z = 34 87Se, and Z = 32 85Ge, and along with an analysis of shell-model calculations, allow us to discuss the main features of excited states expected for the next N = 53 isotone, 83Zn .},

  doi          = {10.1103/PhysRevC.92.054318},

  url          = {https://www.osti.gov/biblio/1341548},
  journal      = {Physical Review. C, Nuclear Physics},

  issn         = {0556-2813},

  number       = 5,

  volume       = 92,

  place        = {United States},

  year         = {2015},

  month        = {11}

}

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https://doi.org/10.1103/PhysRevC.92.054318

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Figures / Tables:

Figure 1: Portions of the β-gated γ-ray spectrum from 0 to 800 keV (a) and from 800 to 1600 keV (b) obtained at mass A = 87. The strongest transitions belonging to the βγ and β- nγ decay of ⁸⁷As are labeled.

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Title: Experimental study of β and β - n decay of the neutron-rich N = 54 isotone As 87

Abstract

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Title: Experimental study of $β$ and $β - n$ decay of the neutron-rich $N = 54$ isotone ${}^{87}{As}$