ADOPTED LEVELS, GAMMAS for 84Zn

Author: Balraj Singh |  Citation: ENSDF |  Cutoff date: 09-SEP-2022 

Author: Balraj Singh |  Citation: ENSDF |  Cutoff date: 15-AUG-2010 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=12260 keV SYS(n)= 3610 keV SYS(p)= 18730 keV SYQ(α)= -11020 keV SY
Reference: 2021WA16

References:
  A  1H(85Ga,2pγ) 

General Comments:

2010Oh02: 84Zn nuclide identified in 9Be(238U,F) and Pb(238U,F) reactions with a 238U86+ beam energy of 345 MeV/nucleon produced by the cascade operation of the RIBF-RIKEN accelerator complex of the linear accelerator RILAC and four cyclotrons RRC, fRC, IRC and SRC. Identification of 84Zn nuclei was made on the basis of magnetic rigidity, time-of-flight and energy loss of the fragments using BigRIPS fragment separator. Based on α/Q spectrum and Z versus α/Q plot, 22 counts were assigned to 84Zn isotope. Probability of misidentification of 84Zn isotope <0.001% (2010Oh02)

2014XuZZ: 84Zn produced in 9Be(238U,F),E=345 MeV/nucleon at RIBF-RIKEN facility. Measured β-decay curve, βγ-coin, T1/2 of decay of 84Zn, and %β-n or Pn.

Theoretical calculations: seven primary references for structure and four primary references for decay characteristics retrieved from the NSR database at www.nndc.bnl.gov/nsr/ are listed in ’document’ records which can be accessed via web retrieval of ENSDF database www.nndc.bnl.goc/ensdf/

Q-value: Estimated uncertainties (2021Wa16): 400 for Q(β-), 500 for S(n), 640 for S(p), 700 for Q(α).

Q-value: Q(β-n)=9360 400, S(2n)=5660 400, S(2p)=35690 890 (syst,2021Wa16). Q(β-2n)=4960 400, Q(β-3n)=1585 400 (syst, deduced by evaluator from mass excesses in 2021Wa16)









E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)Final Levels
     0A 0+ 53.6 ms 81 
% β- = 100
% β-n = 73 26
% β-2n = ?
% B-3N = ?
    
   599 20 A (2+)     599 20 
  100
     0
0+
  1444 29 A (4+)     845 21 
  100
   599
(2+)

E(level): From Eγ values.

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     00+ 53.6 ms 81 
% β- = 100
% β-n = 73 26
% β-2n = ?
% B-3N = ?
Theoretical T1/2=44.1 ms, %β-n=31.5, 30.7; %β-2n=0.52, 0.68; %β-3n=0, 0.003 (2021Mi17, two values for different fission barriers).
E(level): Theoretical T1/2=44.1 ms, %β-n=31.5, 30.7; %β-2n=0.52, 0.68; %β-3n=0, 0.003 (2021Mi17, two values for different fission barriers).
   599(2+)   Jπ(level): Systematics of even-even nuclei, shell-model predictions and configuration=πf5/22~#νd5/240+ (2017Sh42).
  1444(4+)   Jπ(level): Systematics of even-even nuclei, shell-model predictions and configuration=πf5/22~#νd5/240+ (2017Sh42).

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