skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: β and β n decay of the neutron-rich Ge 84 nucleus

Abstract

In this study, the β-decay properties of the very neutron-rich 84Ge nucleus were studied at the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory. Several new γ-transitions and levels were added to its decay scheme and the order of the two lowest-lying levels in the daughter 84As was corrected. For the first time γ radiation following β-delayed neutron emission was observed. The shell-model calculations and apparent β transition intensities were used to guide the spin assignment to the 84As levels, in particular for the low-energy part of the level scheme. The new spin-parity (2 ) proposed for the ground state of 84As is supported also by the systematics of N = 51 isotones.

Authors:
 [1]; ORCiD logo [2]; ORCiD logo [3];  [3];  [4];  [2];  [1];  [5];  [6];  [5];  [1];  [2];  [7];  [5];  [5];  [5];  [1]; ORCiD logo [2];  [1];  [8] more »;  [9] « less
  1. Univ. of Warsaw, Warsaw (Poland)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Vanderbilt Univ., Nashville, TN (United States); Joint Institute for Nuclear Physics and Applications, TN (United States)
  5. Univ. of Tennessee, Knoxville, TN (United States)
  6. Univ. of Warsaw, Warsaw (Poland); Oak Ridge Associated Univ., Oak Ridge, TN (United States)
  7. Univ. of Warsaw, Warsaw (Poland); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  8. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Joint Institute for Nuclear Physics and Applications, TN (United States); Univ. of Warsaw, Warsaw (Poland)
  9. Louisiana State Univ., Baton Rouge, LA (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1480624
Alternate Identifier(s):
OSTI ID: 1259733
Grant/Contract Number:  
AC05-00OR22725; FG02-96ER41006; FG02-96ER40983; AC05-06OR23100; FG02-96ER40978; FG05-88ER40407; FC03-03NA00143
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 93; Journal Issue: 6; Journal ID: ISSN 2469-9985
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, Robert Kazimierz, Bingham, Carrol R., Brewer, Nathan T., Gross, Carl J., Ciemny, A. A., Jost, C., Karny, M., Madurga, M., Mazzocchi, C., Mendez, II, Anthony J., Miernik, Krzysztof A., Miller, D., Padgett, S., Paulauskas, S. V., Piersa, M., Stracener, Daniel W., Stryjczyk, M., Wolińska-Cichocka, Marzena, and Zganjar, E. F. β and β–n decay of the neutron-rich Ge84 nucleus. United States: N. p., 2016. Web. doi:10.1103/PhysRevC.93.064324.
Korgul, A., Rykaczewski, Krzysztof Piotr, Grzywacz, Robert Kazimierz, Bingham, Carrol R., Brewer, Nathan T., Gross, Carl J., Ciemny, A. A., Jost, C., Karny, M., Madurga, M., Mazzocchi, C., Mendez, II, Anthony J., Miernik, Krzysztof A., Miller, D., Padgett, S., Paulauskas, S. V., Piersa, M., Stracener, Daniel W., Stryjczyk, M., Wolińska-Cichocka, Marzena, & Zganjar, E. F. β and β–n decay of the neutron-rich Ge84 nucleus. United States. https://doi.org/10.1103/PhysRevC.93.064324
Korgul, A., Rykaczewski, Krzysztof Piotr, Grzywacz, Robert Kazimierz, Bingham, Carrol R., Brewer, Nathan T., Gross, Carl J., Ciemny, A. A., Jost, C., Karny, M., Madurga, M., Mazzocchi, C., Mendez, II, Anthony J., Miernik, Krzysztof A., Miller, D., Padgett, S., Paulauskas, S. V., Piersa, M., Stracener, Daniel W., Stryjczyk, M., Wolińska-Cichocka, Marzena, and Zganjar, E. F. Tue . "β and β–n decay of the neutron-rich Ge84 nucleus". United States. https://doi.org/10.1103/PhysRevC.93.064324. https://www.osti.gov/servlets/purl/1480624.
@article{osti_1480624,
title = {β and β–n decay of the neutron-rich Ge84 nucleus},
author = {Korgul, A. and Rykaczewski, Krzysztof Piotr and Grzywacz, Robert Kazimierz and Bingham, Carrol R. and Brewer, Nathan T. and Gross, Carl J. and Ciemny, A. A. and Jost, C. and Karny, M. and Madurga, M. and Mazzocchi, C. and Mendez, II, Anthony J. and Miernik, Krzysztof A. and Miller, D. and Padgett, S. and Paulauskas, S. V. and Piersa, M. and Stracener, Daniel W. and Stryjczyk, M. and Wolińska-Cichocka, Marzena and Zganjar, E. F.},
abstractNote = {In this study, the β-decay properties of the very neutron-rich 84Ge nucleus were studied at the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory. Several new γ-transitions and levels were added to its decay scheme and the order of the two lowest-lying levels in the daughter 84As was corrected. For the first time γ radiation following β-delayed neutron emission was observed. The shell-model calculations and apparent β transition intensities were used to guide the spin assignment to the 84As levels, in particular for the low-energy part of the level scheme. The new spin-parity (2–) proposed for the ground state of 84As is supported also by the systematics of N = 51 isotones.},
doi = {10.1103/PhysRevC.93.064324},
url = {https://www.osti.gov/biblio/1480624}, journal = {Physical Review C},
issn = {2469-9985},
number = 6,
volume = 93,
place = {United States},
year = {2016},
month = {6}
}

Journal Article:

Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

First observation of excited states in 87 Se: Collectivity and j 1 anomaly at N = 53
journal, September 2013


Applications of digital pulse processing in nuclear spectroscopy
journal, May 2003


New subshell closure at N = 58 emerging in neutron-rich nuclei beyond Ni 78
journal, April 2010


ISOL science at the Holifield Radioactive Ion Beam Facility
journal, January 2011


First study of the level structure of the r -process nucleus Ge 83
journal, February 2005


First Results from the Modular Total Absorption Spectrometer at the HRIBF
journal, January 2014


Single-neutron excitations in neutron-rich Ge 83 and Se 85
journal, October 2007


Nuclear Data Sheets for A = 84
journal, November 2009


β decay of the π f 5 / 2 ground state of Cu 77 studied with 225  MeV and 0.2  MeV purified radioactive beams
journal, November 2009


Gamma-ray and delayed neutron branching data for the new or little known isotopes84,85Ge and84,85As
journal, June 1991


Rare isotope discoveries with digital electronics
journal, August 2007

  • Grzywacz, R.; Gross, C. J.; Korgul, A.
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 261, Issue 1-2
  • https://doi.org/10.1016/j.nimb.2007.04.234

Laboratory versus intrinsic description of nonaxial nuclei above doubly magic 78 Ni
journal, September 2013


Evaluation of theoretical conversion coefficients using BrIcc
journal, May 2008

  • Kibédi, T.; Burrows, T. W.; Trzhaskovskaya, M. B.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 589, Issue 2
  • https://doi.org/10.1016/j.nima.2008.02.051

The essential decay of pandemonium: A demonstration of errors in complex beta-decay schemes
journal, November 1977


β -decay properties of the very neutron-rich isotopes Ge 86 and As 86
journal, November 2015


Realistic effective interactions for nuclear systems
journal, October 1995


Neutron-rich isotopes around the r-process ?waiting-point? nuclei 29 79 Cu50 and 30 80 Zn50
journal, December 1991


Reexamining Gamow-Teller decays near Ni 78
journal, April 2016


Large β -Delayed One and Two Neutron Emission Rates in the Decay of Ga 86
journal, September 2013


New half-life measurements of the most neutron-rich arsenic and germanium isotopes
journal, March 2013


Strengths of gamma-ray transitions in A = 45–90 nuclei
journal, June 1979


The Ame2012 atomic mass evaluation
journal, December 2012


New Half-lives of r -process Zn and Ga Isotopes Measured with Electromagnetic Separation
journal, September 2012


Strengths of gamma-ray transitions in A = 91–150 nuclei
journal, January 1981


Experimental study of the β - γ and β - n γ decay of the neutron-rich nucleus 85 Ga
journal, October 2013


Yrast excitations in the neutron-rich N = 52 isotones
journal, October 2013


Status of radioactive ion beams at the HRIBF
journal, May 2003


Test of the singly magic character of the N=50 isotone As 83 populated in Ge 83 decay
journal, July 1988


    Works referencing / citing this record: