ADOPTED LEVELS, GAMMAS for 33Ar

Authors: Jun Chen and Balraj Singh |  Citation: Nucl. Data Sheets 112, 1393 (2011) |  Cutoff date: 31-Mar-2011 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-1.643×104 keV SYS(n)= 15255.3 keV 18S(p)= 3338.6 keV 7Q(α)= -8.65×103 keV 5
Reference: 2012WA38

References:
  A  1H(34Ar,33ArG),  B  36Ar(3He,6He)

General Comments:

Identification and production of 33Ar: 1966Po12 and 1964Re08: 32S(3He,2n) reaction at 31.8 MeV, delayed protons; 1966Ha22 and 1965Ha08: 33Cl(p,X). Later studies of 33Ar decay: 2002Fy01, 1999Th09, 1996Ho24, 1993Sc16, 1987Bo21, 1971Ha05 (also 1971EsZR thesis), 1970Ce02.

Mass measurements: 2003Bl17, 2001He29 (also 2002He13, 2001He37). Mass excess=-9384.08 44 (2003Bl17)

C(33Ar,X) E=950 MeV/nucleon, measured cross section, deduced effective radius

2000Ga61: measured positron-neutrino correlations using 33Ar beam at ISOLDE, CERN facility.

2000Ge20: hyperfine structure and charge radii measurements at ISOLDE, CERN facility

Structure calculations: 2006Te01, 2004Ge02, 1983Ka32, 1978Gu10

Q-value: Note: Current evaluation has used the following Q record

Q-value: Δ(Q(β-))=200 (syst,2003Au03,2009AuZZ). Q(εp)=9342.3 4 (2009AuZZ, 2003Au03). S(2n)=36820 210 (syst), S(2p)=4917.7 16 (2009AuZZ,2003Au03)

Q-value: Q(β-n)=-37870 500 (syst,2003Au03,2009AuZZ)









E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)Final Levels
     0 B 1/2+ 173.0 ms 20 
% ε = 100
% εp = 38.7 10
    
  1359 2 AB (3/2+)     1359 2 
  100
     0
1/2+
  1798 2 AB (5/2+)      437 3 
  1798 2 
    2.4 4 
  100 15 
  1359
     0
(3/2+)
1/2+
  2439 3 ?A  (3/2+)      639 2 ?
  1084 4 ?
  100 29 
  100 57 
  1798
  1359
(5/2+)
(3/2+)
  3154 9 A  (3/2+)     1356 8 
  100
  1798
(5/2+)
  3361 5 A  (5/2+)     1556 8 
  2005 5 
  100 14 
   60 40 
  1798
  1359
(5/2+)
(3/2+)
  3456 6 A  (7/2+)     1651 6 ?
  2097 5 
   30 20 
  100 50 
  1798
  1359
(5/2+)
(3/2+)
  3819 3 A  (5/2+)     2460 2 
  100
  1359
(3/2+)

E(level): From least-squares fit to Eγ data

Jπ(level): As proposed by 2004Cl02 based on their identification as analog states of 33p, the parentheses are by the evaluators.

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     01/2+ 173.0 ms 20 
% ε = 100
% εp = 38.7 10
μ=-0.723 6 (1996Kl04,2005St24)
Nuclear rms charge radius=3.343 fm 8 (2004An14 evaluation).

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