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Title: β -decay properties of the very neutron-rich isotopes Ge 86 and As 86

Abstract

For this research, the β -decay properties of very neutron rich nuclei 86Ge and 86As were measured at the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory. Spectroscopic information on new excited states in 86As and in 86Se was obtained and is interpreted within an advanced shell model approach. These calculations, previously explaining well the structure of 84Ge and 85Ge, are not able to reproduce all the experimentally determined features of the measured level schemes of 86As and 86Se. The Gamow-Teller decay of 86Ge and 86As is also investigated in a shell-model framework. The fission yield for 86Ge is discussed.

Authors:
 [1];  [2];  [3];  [1];  [4];  [5];  [2];  [6];  [7];  [1];  [6];  [2];  [8];  [6];  [6];  [6];  [9];  [2];  [10]
  1. Univ. of Warsaw (Poland). Faculty of Physics
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
  4. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division; Vanderbilt Univ., Nashville, TN (United States). Department of Physics and Astronomy; Joint Institute for Nuclear Physics and Applications, Oak Ridge, TN (United States)
  6. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
  7. Univ. of Warsaw (Poland). Faculty of Physics; Oak Ridge Associated Universities, Oak Ridge, TN (United States)
  8. Univ. of Warsaw (Poland). Faculty of Physics; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division
  9. Brookhaven National Lab. (BNL), Upton, NY (United States). National Nuclear Data Center
  10. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division; Oak Ridge Associated Univ., Oak Ridge, TN (United States); Univ. of Warsaw (Poland). Heavy Ion Laboratory
Publication Date:
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)
OSTI Identifier:
1341544
Alternate Identifier(s):
OSTI ID: 1226502
Grant/Contract Number:  
AC05-00OR22725; FG02-96ER40983; AC05-06OR23100; FG05-88ER40407; FC03-03NA00143; FG52-08NA28552; 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

Mazzocchi, C., Rykaczewski, Krzysztof Piotr, Grzywacz, R., Bączyk, P., Bingham, C. R., Brewer, N. T., Gross, Carl J., Jost, C., Karny, M., Korgul, A., Madurga, M., Mendez, Anthony J., Miernik, K., Miller, D., Padgett, S., Paulauskas, S. V., Sonzogni, A. A., Stracener, D. W., and Wolińska-Cichocka, M. β -decay properties of the very neutron-rich isotopes Ge86 and As86. United States: N. p., 2015. Web. doi:10.1103/PhysRevC.92.054317.
Mazzocchi, C., Rykaczewski, Krzysztof Piotr, Grzywacz, R., Bączyk, P., Bingham, C. R., Brewer, N. T., Gross, Carl J., Jost, C., Karny, M., Korgul, A., Madurga, M., Mendez, Anthony J., Miernik, K., Miller, D., Padgett, S., Paulauskas, S. V., Sonzogni, A. A., Stracener, D. W., & Wolińska-Cichocka, M. β -decay properties of the very neutron-rich isotopes Ge86 and As86. United States. https://doi.org/10.1103/PhysRevC.92.054317
Mazzocchi, C., Rykaczewski, Krzysztof Piotr, Grzywacz, R., Bączyk, P., Bingham, C. R., Brewer, N. T., Gross, Carl J., Jost, C., Karny, M., Korgul, A., Madurga, M., Mendez, Anthony J., Miernik, K., Miller, D., Padgett, S., Paulauskas, S. V., Sonzogni, A. A., Stracener, D. W., and Wolińska-Cichocka, M. Thu . "β -decay properties of the very neutron-rich isotopes Ge86 and As86". United States. https://doi.org/10.1103/PhysRevC.92.054317. https://www.osti.gov/servlets/purl/1341544.
@article{osti_1341544,
title = {β -decay properties of the very neutron-rich isotopes Ge86 and As86},
author = {Mazzocchi, C. and Rykaczewski, Krzysztof Piotr and Grzywacz, R. and Bączyk, P. and Bingham, C. R. and Brewer, N. T. and Gross, Carl J. and Jost, C. and Karny, M. and Korgul, A. and Madurga, M. and Mendez, Anthony J. and Miernik, K. and Miller, D. and Padgett, S. and Paulauskas, S. V. and Sonzogni, A. A. and Stracener, D. W. and Wolińska-Cichocka, M.},
abstractNote = {For this research, the β -decay properties of very neutron rich nuclei 86Ge and 86As were measured at the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory. Spectroscopic information on new excited states in 86As and in 86Se was obtained and is interpreted within an advanced shell model approach. These calculations, previously explaining well the structure of 84Ge and 85Ge, are not able to reproduce all the experimentally determined features of the measured level schemes of 86As and 86Se. The Gamow-Teller decay of 86Ge and 86As is also investigated in a shell-model framework. The fission yield for 86Ge is discussed.},
doi = {10.1103/PhysRevC.92.054317},
url = {https://www.osti.gov/biblio/1341544}, journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 5,
volume = 92,
place = {United States},
year = {2015},
month = {11}
}

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Cited by: 8 works
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Figures / Tables:

Figure 1 Figure 1: Schematic decay path of 86Ge. Energies are to scale and the presented discrete levels (solid lines) are from this work. Q β values and neutron-separation energies ( S n, dashed lines) are taken from [4]. Neutron-unbound states are represented by the shaded regions.

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    Reverse engineering nuclear properties from rare earth abundances in the r process
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    Impact of Nuclear Mass Uncertainties on the r Process
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