ADOPTED LEVELS, GAMMAS for 34Ar

Authors: Ninel Nica, Balraj Singh |  Citation: Nucl. Data Sheets 113, 1563 (2012) |  Cutoff date: 28-May-2012 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-1.72×104 keV SYS(n)= 17065.3 keV 4S(p)= 4663.9 keV 4Q(α)= -6744.2 keV 4
Reference: 2012WA38

References:
  A  35Ca εp decay (25.7 MS)  B  1H(34Ar,p’)
  C  3He(32S,nγ),32S(3He,nγ)  D  32S(3He,n)
  E  36Ar(p,t) 

General Comments:

Identification and production of 34Ar isotope: 1966Mi11 and 1967Ba36 in 32S + 3He reaction; measured half-life

34S(π+-): 1993Bi10, 1991Bi07 (E=50 MeV), 1987Zu03 (E=292 MeV), measured σ

Mass measurement: 2002He23 (also 2001He29,2001He37)

Nuclear radius measurement: 2002Oz03

Structure calculations: 2006Or01 (levels, B(E2), shell model); 2005Ob01 (deformation, levels)

2007DoZV: found 1197γ and 2090γ (with two-step fragmentation reaction at relativistic energies) 9Be(37Ca,Xγ) E=197.5 α MeV reaction)

2011Le01, 2010Le03: experimental (by two methods) and theoretical neutron spectroscopic factors and reduction factors for 34Ar g.s. extracted from reaction p(34Ar,d), E(34Ar)=33 MeV/nucleon

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

Q-value: ΔQ(β-)=298 (2011AuZZ)

Q-value: Q(εp)=919.5 3, S(2n)=32319.7 18, S(2p)=6939.8 3 (2011AuZZ)

Q-value: Values in 2003Au03: Q(β-)=16900 300 (syst), S(n)=17064.4 5, S(p)=4662.8 6, Q(α)=-6740 3, Q(εp)=919.8 4, S(2n)=32319.6 18, S(2p)=6939.5 4










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
     0ABCDE 0+ 843.8 ms 4 
% ε = 100
     
  2091.1 3 ABCDE 2+ 319 fs 42    2091.1 3 
  100
E2
     0
0+
  3287.7 5 A CDE 2+ 194 fs 35    1196.6 4 
  3286 4 
  100 5 
    9 6 
M1+E2
[E2]
  2091.1
     0
2+
0+
  3873 3 A CDE 0+ > 187 fs    585?
  1782 3 
  <43
  100

[E2]
  3287.7
  2091.1
2+
2+
  4050 14    DE        
  4127.8 10   CD  < 208 fs    840.1 9 
  2037
  4128?
  100 6 
   11 6 
  <11



  3287.7
  2091.1
     0
2+
2+
0+
  4513.2 8  BCDE 3- 201 fs 38    1225.5 6 
  2422
  100 11 
   11 3 
[E1]
[E1]
  3287.7
  2091.1
2+
2+
  4631 4   C E     2540
  100

  2091.1
2+
  4865 4   C E     2774
  100

  2091.1
2+
  4967 4   CDE 0+      841?
  2876
  <20
  100


  4127.8
  2091.1

2+
  5255 4 ?  C       3164?
  100

  2091.1
2+
  5307 13    DE (5-)        
  5542 4   C        911
  1029
   54 16 
  100 16 


  4631
  4513.2

3-
  5620 30    D  2+        
  5909 12    DE 0+        
  6074 11     E 2+        
  6525 9    DE 2+        
  6794 11    DE        
  6990 50    D         
  7322 6    DE 2+        
  7499 4     E (2+)        
  7925 5     E        

T1/2(level): From DSAM in 3He(32S,nγ),32S(3He,nγ). Most values are from 1985Al18

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Additional Gamma Data:













E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityMixing
Ratio
Additional Data
  2091.1 2+ 319 fs 42    2091.1 3 E2 B(E2)(W.u.)=6.8 9
  3287.7 2+ 194 fs 35    1196.6 4 M1+E2+0.12 5B(E2)(W.u.)=2.4 20, B(M1)(W.u.)=0.060 12
2+ 194 fs 35    3286 4 [E2] B(E2)(W.u.)=0.10 7
  3873 0+ > 187 fs   1782 3 [E2] B(E2)(W.u.)<21
  4513.2 3- 201 fs 38    1225.5 6 [E1] B(E1)(W.u.)=0.0016 4
3- 201 fs 38    2422[E1] B(E1)(W.u.)=2.2E-5 8

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     00+ 843.8 ms 4 
% ε = 100
δ<r2>(38Ar,34Ar)=-0.251 fm2 6 62, first is statistical and the second is systematic uncertainty (1996Kl04, 2000Ge20).
  2091.12+ 319 fs 42  β2(p,p’)=0.27 2 (2001Kh17).
  4513.23- 201 fs 38  β3(p,p’)=0.39 3 (2001Kh17).

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Additional Gamma Comments:

E(level)E(gamma)Comments
  5542   911I(γ): Tentative value of branching ratio
  1029I(γ): Tentative value of branching ratio

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