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

Journal Article · · Physical Review C
 [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)

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.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC05-00OR22725; FG02-96ER41006; FG02-96ER40983; AC05-06OR23100; FG02-96ER40978; FG05-88ER40407; FC03-03NA00143
OSTI ID:
1480624
Alternate ID(s):
OSTI ID: 1259733
Journal Information:
Physical Review C, Vol. 93, Issue 6; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 5 works
Citation information provided by
Web of Science

References (33)

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
  • 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
journal August 2007
Laboratory versus intrinsic description of nonaxial nuclei above doubly magic 78 Ni journal September 2013
Evaluation of theoretical conversion coefficients using BrIcc
  • 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
journal May 2008
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
Shell quenching in Ni 78 : A hint from the structure of neutron-rich copper isotopes journal June 2010
Realistic effective interactions for nuclear systems journal October 1995
High-spin excitations of the odd-odd 88 37Rb51 and 86 35Br51 nuclei: $ \pi$ p3/2 $ \nu$ d5/2 and $ \pi$ f5/2 $ \nu$ d5/2 residual interactions journal March 2009
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
Experimental study of Ga 84 β decay: Evidence for a rapid onset of collectivity in the vicinity of Ni 78 journal October 2009
Erratum: New half-life measurements of the most neutron-rich arsenic and germanium isotopes [Phys. Rev. C 87 , 034315 (2013)] journal March 2013
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
β -Decay Half-Lives of Co 76 , 77 , Ni 79 , 80 , and Cu 81 : Experimental Indication of a Doubly Magic Ni 78 journal July 2014
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

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