ADOPTED LEVELS, GAMMAS for 11C

Authors: J.H. Kelley, C.G. Sheu |  Citation: Nucl. Physics A880, 88 (2012) |  Cutoff date: 1-Jan-2011 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-1.365×104 keV 5S(n)= 13119.8 keV 9S(p)= 8689.4 keV 9Q(α)= -7543.6 keV 10
Reference: 2012WA38

References:
  A  1H(11C,11C)  B  6Li(6Li,n)
  C  6Li(10B,11C)  D  7Be(α,γ)
  E  9Be(3He,n)  F  10B(p,γ) RES
  G  10B(p,p),(p,α)  H  10B(d,n)
  I  10B(3He,d)  J  10B(7Li,6He)
  K  11B(p,n)  L  11B(3He,t)
  M  12C(π+,p)  N  12C(p,d)
  O  12C(d,t)  P  12C(3He,α)
  Q  12C(3He,PT)  R  13C(π+,d)
  S  13C(p,t)  T  14N(p,α)
  U  16O(d,7Li)  V  16O(9Be,ALPHA7BE)
  W  10B(p,n) 

General Comments:

Gammas: Mostly from (1965Ol03) and (1968Ea03): see Table 11.20 in (1980Aj01) for other references and additional information

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

Q-value: Based on mass excess (11C)=10650.4 9 Here the mass excess for 11N = 24477 keV 60 differs from that in (2011AuZZ) (24303 keV 46).










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
      0AB  EF HIJKLMNOPQRSTU   3/2- 20.364 m 14 
% ε = 100
     
   2000.0 4 AB  EF HIJKLMNOPQ STU   1/2- 7.1 fs 5     2000.0
  100
M1
      0
3/2-
   4318.8 12 AB  EF HIJKLMNOPQ STU   5/2- < 8.3 fs    2318
   4318.8
   <2
  100


   2000.0
      0
1/2-
3/2-
   4804.2 12  B  EF HIJKLMN PQ STU   3/2- < 7.6 fs    2804.2
   4804.2
   14.8 14 
   85.2 14 


   2000.0
      0
1/2-
3/2-
   6339.2 14  B  E  HI K    PQ   U   1/2+ < 76.2 fs    1535
   2020
   4339.2
   6339.2
   <3
   <7
   33.5 21 
   66.5 21 




   4804.2
   4318.8
   2000.0
      0
3/2-
5/2-
1/2-
3/2-
   6478.2 13 AB  EF HIJKLMN P RS U   7/2- < 5.5 fs    1674
   2159.4
   4477
   6478.2
   <2
   11.5 14 
   <2
   88.5 14 




   4804.2
   4318.8
   2000.0
      0
3/2-
5/2-
1/2-
3/2-
   6904.8 14  B  E  HIJKL N P  S U   5/2+ < 48 fs     427
    566
   2100.6
   2586.0
   4904
   6904.8
   <5
   <5
    4.5 10 
    4.5 10 
   <1
   91 2 






   6478.2
   6339.2
   4804.2
   4318.8
   2000.0
      0
7/2-
1/2+
3/2-
5/2-
1/2-
3/2-
      7.4E3?       H  K             3/2+        
   7499.7 15  B  E   I KL N P  S     3/2+ < 63 fs     595
   1021
   1160
   2695
   3181
   5499.7
   7499.7
   <4
   <3
   <3
   <1
   <1
   64 2 
   36 2 







   6904.8
   6478.2
   6339.2
   4804.2
   4318.8
   2000.0
      0
5/2+
7/2-
1/2+
3/2-
5/2-
1/2-
3/2-
   8104.5 17   CDE  HI  L N P        3/2- 6 eV +12-2 
% IT = 5.5 36
% α = 94.5 36
   6104.5
   8104.5
   26 5 
   74 12 
M1
M1
   2000.0
      0
1/2-
3/2-
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
   8420 2  BCDEF HIJ L N P  S     5/2- 0.030 fs 8 
% IT = 20 5
% α = 80 5
   4101
   8420
   <7
  100

M1
   4318.8
      0
5/2-
3/2-
   8654 4   C EF HIJ L N       V  7/2+ ≤ 5 keV
% α ≈ 100
% IT > 0
     
   8699 2     EF HIJ L            5/2+ 15 keV 1 
% p > 90
% IT < 10
   2221
   3895
   4380
   8699
   13.6 46 
    2.4 15 
   42 10 
   42 10 




   6478.2
   4804.2
   4318.8
      0
7/2-
3/2-
5/2-
3/2-
   9200 50      F       N          5/2+ 500 keV 90 
% IT > 0
% p < 100
   2722
   4881
   9200
   20 10 
    6 5 
   74 18 



   6478.2
   4318.8
      0
7/2-
5/2-
3/2-
   9645 50      FG      N          (3/2-) 210 keV 40 
% IT > 0
% p < 100
% α < 100
   4846
   5331
   9650
    8 4 
   32 10 
   60 5 



   4804.2
   4318.8
      0
3/2-
5/2-
3/2-
   9780 50      FG      N          (5/2-) 240 keV 50 
% IT > 0
% p < 100
   3302
   4976
   5461
   9780
   12 4 
    4 2 
    8 2 
   76 16 




   6478.2
   4804.2
   4318.8
      0
7/2-
3/2-
5/2-
3/2-
   9970 50      F                  (7/2-) 120 keV 20 
% IT > 0
% p < 100
   3492
   5651
   10 7 
   90 10 


   6478.2
   4318.8
7/2-
5/2-
  10083 5      FGHI  L N          7/2+ ≈ 230 keV
% p ≈ 36
% α ≈ 64
% IT > 0
   3605
   5764
   13 6 
   67 8 


   6478.2
   4318.8
7/2-
5/2-
  10679 5     EFGHI  L N       V  9/2+ 200 keV 30 
% p ≈ 50
% α ≈ 50
% IT > 0
  10679
  100

      0
3/2-
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  11030 30       G    L N P  S     300 keV 60 
% p < 100
% α < 100
     
  11440 10       G    L N          360 keV
% α ≈ 100
% p > 0
     
  12160 40     E G    L            270 keV 50 
% p = ?
     
  12400     F         P        - 1.4 MeV 4 
% IT = ?
% p = ?
     
  12510 30     E G    LM     S     1/2- 500 keV 50 
% p = ?
     
  12650 20       G    L            (7/2+) 360 keV
% p ≈ 50
% α ≈ 50
% 3HE > 0
     
  13010?     F                  % IT > 0
% p < 100
     
  13330 60             M     S     270 keV 80       
  13400      G      N       V  11×10+2 keV 1 
% p = ?
% α = ?
     
  13900 20     E G    L      S     200 keV 40 
% p = ?
     
  14070 20       G    L      S   W 135 keV 50 
% n = ?
% p = ?
     
  14760 40     E G               W ≈ 450 keV
% n = ?
% p = ?
% 3HE = ?
     
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  15350 50      FG        P      W - % IT > 0
% n < 100
% p < 100
     
  15590 50       G               W ≈ 450 keV
% n = ?
% p = ?
     
  16700     F                  - 0.82 MeV 9 
% IT > 0
% p < 100
     
  18200?     F                  % IT > 0
% p < 100
     
  23000?               P               
  28000?               P               

E(γ): From level energy difference; no recoil correction

I(γ): % branching from each level

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Additional Gamma Data:











E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityAdditional Data
   2000.0 1/2- 7.1 fs 5     2000.0M1B(M1)(W.u.)=0.38 3
   8104.5 3/2- 6 eV +12-2 
% IT = 5.5 36
% α = 94.5 36
   6104.5M1B(M1)(W.u.)=1.9×10-2 5
3/2- 6 eV +12-2 
% IT = 5.5 36
% α = 94.5 36
   8104.5M1B(M1)(W.u.)=2.3×10-2 5
   8420 5/2- 0.030 fs 8 
% IT = 20 5
% α = 80 5
   8420M1B(M1)(W.u.)=0.25 9

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
   4318.85/2- < 8.3 fs It: branching ratios from (1961Do03): 10B(p,γ) and (1968Ea03): 12C(3He,α).
E(level): It: branching ratios from (1961Do03): 10B(p,γ) and (1968Ea03): 12C(3He,α).
T1/2(level): From (1979An16). See also (1981Ca06) for mean life of 11C*(4319, 4804, 6478).
   4804.23/2- < 7.6 fs It:branching ratios from (1965Ol03): 9Be(3He,n) and 10B(d,n), (1961Do03): 10B(p,γ), (1962Fr06):10B(d,n) and (1968Ea03): 12C(3He,α).
E(level): It:branching ratios from (1965Ol03): 9Be(3He,n) and 10B(d,n), (1961Do03): 10B(p,γ), (1962Fr06):10B(d,n) and (1968Ea03): 12C(3He,α).
T1/2(level): From (1979An16). See also (1981Ca06) for mean life of 11C*(4319, 4804, 6478).
   6339.21/2+ < 76.2 fs It: branching ratios from (1965Ro07): 9Be(3He,n) and (1968Ea03): 12C(3He,α).
E(level): It: branching ratios from (1965Ro07): 9Be(3He,n) and (1968Ea03): 12C(3He,α).
   6478.27/2- < 5.5 fs It: branching ratios from (1962Fr06):10B(d,n), (1962Br26): 10B(d,n) and (1968Ea03): 12C(3He,α).
E(level): It: branching ratios from (1962Fr06):10B(d,n), (1962Br26): 10B(d,n) and (1968Ea03): 12C(3He,α).
T1/2(level): From (1979An16). See also (1981Ca06) for mean life of 11C*(4319, 4804, 6478).
   6904.85/2+ < 48 fs It: branching ratios to 11C*(0,2,4.3,4.8 MeV) from (1968Ea03): 12C(3He,α). See also (1965Ol03) who report Branching=89(3), <2, 11(3), <3, <5 and <5% for decay to 11C*(0,2,4.3,4.8,6.3,6.5,6.9 MeV).
E(level): It: branching ratios to 11C*(0,2,4.3,4.8 MeV) from (1968Ea03): 12C(3He,α). See also (1965Ol03) who report Branching=89(3), <2, 11(3), <3, <5 and <5% for decay to 11C*(0,2,4.3,4.8,6.3,6.5,6.9 MeV).
   7499.73/2+ < 63 fs It: branching ratios from (1965Ol03) who report Branching=36(2), 64(2), <3, <3, <3, <3, <4 to 11C*(0,2,4.3,4.8,6.3,6.5,6.9 MeV) and from (1968Ea03) who report Branching=37(3), 63(8), <1, <1 for decay to 11C*(0,2,4.3,4.8 MeV).
E(level): It: branching ratios from (1965Ol03) who report Branching=36(2), 64(2), <3, <3, <3, <3, <4 to 11C*(0,2,4.3,4.8,6.3,6.5,6.9 MeV) and from (1968Ea03) who report Branching=37(3), 63(8), <1, <1 for decay to 11C*(0,2,4.3,4.8 MeV).
   8104.53/2- 6 eV +12-2 
% IT = 5.5 36
% α = 94.5 36
Γγ=0.350 56, Γα=6 +12-2
It: Branching from (1984Ha13): 7Be(α,γ).
E(level): It: Branching from (1984Ha13): 7Be(α,γ).
   84205/2- 0.030 fs 8 
% IT = 20 5
% α = 80 5
It: Branching from (1984Ha13): 7Be(α,γ).
E(level): It: Branching from (1984Ha13): 7Be(α,γ).
   86547/2+ ≤ 5 keV
% α ≈ 100
% IT > 0
Γ(c.m.)|<4.5 keV; Γγ/Γ<0.06 (1983Wi09).
   86995/2+ 15 keV 1 
% p > 90
% IT < 10
Γ(c.m.)=14.5 keV 25 and Γγ/Γ|<0.1 (1983Wi09), based on direct capture data; however, based on resonance parameters Γ(c.m.)=16 keV 1 and Γγ/Γ|=2.60×10-4 15 (1983Wi09).
E(level): Γ(c.m.)=14.5 keV 25 and Γγ/Γ|<0.1 (1983Wi09), based on direct capture data; however, based on resonance parameters Γ(c.m.)=16 keV 1 and Γγ/Γ|=2.60×10-4 15 (1983Wi09).
   92005/2+ 500 keV 90 
% IT > 0
% p < 100
It: Branching from (1983Wi09): 10B(p,γ).
E(level): It: Branching from (1983Wi09): 10B(p,γ).
   9645(3/2-) 210 keV 40 
% IT > 0
% p < 100
% α < 100
It: Branching from (1983Wi09): 10B(p,γ). Also see (1979An16).
E(level): It: Branching from (1983Wi09): 10B(p,γ). Also see (1979An16).
   9780(5/2-) 240 keV 50 
% IT > 0
% p < 100
It: Branching from (1983Wi09): 10B(p,γ). Also see (1979An16).
E(level): It: Branching from (1983Wi09): 10B(p,γ). Also see (1979An16).
   9970(7/2-) 120 keV 20 
% IT > 0
% p < 100
It: Branching from (1983Wi09): 10B(p,γ).
E(level): It: Branching from (1983Wi09): 10B(p,γ).
  100837/2+ ≈ 230 keV
% p ≈ 36
% α ≈ 64
% IT > 0
It: Branching from (1983Wi09): 10B(p,γ).
E(level): It: Branching from (1983Wi09): 10B(p,γ).
  106799/2+ 200 keV 30 
% p ≈ 50
% α ≈ 50
% IT > 0
It: Branching from (1983Wi09): 10B(p,γ).
E(level): It: Branching from (1983Wi09): 10B(p,γ).
  11030 300 keV 60 
% p < 100
% α < 100
T=1/2
Additional levels seen at 11260 h.
  11440 360 keV
% α ≈ 100
% p > 0
Additional levels seen at 11520 h, 11954 γ, 12100 V.
  125101/2- 500 keV 50 
% p = ?
T=3/2
Additional levels seen at 12600 V.

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Additional Gamma Comments:

E(level)E(gamma)Comments
   6478.2   6478.2I(γ): cascades via 11C*(2000, 4804)<2%
   8104.5   6104.5E(γ): See (1984Ha13)
   8104.5E(γ): See (1984Ha13)
   8420   8420E(γ): See (1984Ha13)
   8699   2221E(γ): See (1983Wi09)
   3895E(γ): See (1983Wi09)
   4380E(γ): See (1983Wi09)
   8699E(γ): See (1983Wi09)
   9200   2722E(γ): See (1983Wi09)
   4881E(γ): See (1983Wi09)
   9200E(γ): See (1983Wi09)
   9645   4846E(γ): See (1983Wi09). See also (1979An16)
   5331E(γ): See (1983Wi09). See also (1979An16)
   9650E(γ): See (1983Wi09). See also (1979An16)
   9780   3302E(γ): See (1983Wi09). See also (1979An16)
   4976E(γ): See (1983Wi09). See also (1979An16)
   5461E(γ): See (1983Wi09). See also (1979An16)
   9780E(γ): See (1983Wi09). See also (1979An16)
   9970   3492E(γ): See (1983Wi09)
   5651E(γ): See (1983Wi09)
  10083   3605E(γ): See (1983Wi09)
   5764E(γ): See (1983Wi09)
  10679  10679E(γ): See (1983Wi09)

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