ADOPTED LEVELS, GAMMAS for 76Ge

Author: Balraj Singh |  Citation: Nucl. Data Sheets 74,63 (1995) |  Cutoff date: 22-Dec-1994 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-921.5 keV 9S(n)= 9427.24 keV 5S(p)= 12037.3 keV 25Q(α)= -7492.3 keV 22
Reference: 2012WA38

References:
  A  76Ga β- decay (32.6 S)  B  74Ge(t,p)
  C  74Ge(18O,16O)  D  76Ge(n,n’)
  E  76Ge(n,n’γ)  F  76Ge(p,p’), (pol p,p’)
  G  76Ge(pol d,d’)  H  76Ge(α,α’)
  I  76Ge(16O,16O’), (18O,18O’)  J  Coulomb Excitation
  K  80Se(d,6Li) 

General Comments:

Other studies:

76Ge ββ decay (to 76Se) through neutrino-less or 2-neutrino decay:

76Ge ββ decay (experimental): 1994Ba15, 1993Be14, 1992Re03 (also 1991Tr07,1987Fi05, 1984Fo06), 1992Be20 (also 1992Ba25), 1991Mo28 (also 1991Mo27,1991Mo23,1988Mo35,1985Hu01,1983Le27), 1991Ca34 (also 1987Ca21,1986Ca07), 1991Av04 (also 1991Av01,1990Mi23,1987Av05, 1987Av01,1986Av03,1985Av02,1983Av01,1979Av01,1978Pi07), 1991Hy01 (also 1993Hy02, 1984El01), 1990Bu15, 1990Va18, 1988Ok01 (also 1987Ej01,1986Ka33,1986Ej01), 1986Zd01 (also 1985Zd01), 1984Si08, 1984Fi16 (also 1984Be48,1983Be65,1982Be20, 1973Fi01,1970Fi09, 1967Fi14), 1952Fr23

76Ge ββ decay (compilations and analysis): 1993Kl01, 1992Wu07, 1991Kl04, 1988Ca03

76Ge ββ decay (theoretical): 1994Ci05, 1994Fa04, 1994Kr05, 1994St04, 1994Su03, 1993Su12, 1993Su02, 1993St17, 1993St05, 1993Wu02, 1993Mu08, 1993Kr20, 1993Kr15, 1993Hi07, 1993Ch07, 1993Ch34, 1993Bu19, 1993Bu01, 1992St10, 1992St07, 1992Su11, 1992Pa07, 1991Wu07, 1991Su14, 1991Su07, 1991Mu10, 1991Ha24, 1991Fa13, 1991Fa01, 1991Ci02, 1991Bi09, 1990Su03, 1990Sh02, 1990Pi03, 1990Hi07, 1990Hi06, 1990Fa13, 1990Ci06, 1990Ba60, 1989Le28, 1989En02, 1989Ba05, 1989Al34, 1988Ye02, 1988Vo07, 1988To10, 1988Si03, 1988Mu03, 1988Mo26, 1988Ku31, 1988En04, 1988En02, 1988Do06, 1988Al34, 1987To16, 1987Ci05, 1986Vo11, 1986To03, 1986Gr23, 1986Fa07, 1985Vo11, 1985To13, 1985Gr11, 1985Gr03, 1985Do13, 1985Bo08, 1984Kl07, 1983Ha13, 1983Do12, 1982Za05, 1981Ha21, 1970BoZC

76Ge(e,e) E=225 MeV: 1990Kh03. Other: 1983Em01

76Ge(γ,α) E=18-25 MeV: 1990An13, measured emission of α’s in GDR region

Giant dipole resonances in (γ,xn): 1976Ca06

76Ge(p,p’γ): 1983Ra02, measured σ

Mass measurement: 1977De20, 1976De21, 1964Ba03, 1963Ri07

Mass difference (76Ge-76Se): 1991Hy01 (also 1993Hy02,1985El01,1984El01,1984ElZY)

76Ge(π+-) E=164 MeV: 1993Ka40, 1986Fa07, calculated σ(θ)

76Ge(32S,32S) E=3.4-7 MeV/nucleon: 1982Gu19, measured fission

76Ge(32S,32S) E=158.3 MeV: 1984Sc28, calculated ratio of elastic to Rutherford σ’s

Nuclear structure calculations (level, moments, syst etc.): 1994An08, 1994Jo03, 1994Li18, 1993Ch07, 1992Er02, 1992Hs02, 1992Bu05, 1991Pe09, 1988Ra35, 1988Do08, 1987Fo17, 1986Ta04, 1986Jo03, 1985Na12, 1984We04, 1984Ba28, 1983Ta03, 1983Gi06, 1983Du04, 1982Le17, 1982Ko10, 1982Ah06, 1981We09, 1980Sh23, 1980Ko22, 1978De12, 1976La06

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

Q-value: Q(β-β-)=2038.6 3 (1991Hy01), 2038.7 5 (1993Au05)










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
     0.0ABCDEFGHIJK 0+ STABLE      
   562.93 3 ABCDEFGHIJK 2+ 18.2 ps 2     562.93 3 
  100
E2
     0.0
0+
  1108.44 4 AB  EF H JK 2+ 8.0 ps 15     545.51 3 
  1108.41 8 
  100 2 
   68 7 
E2+M1
E2
   562.93
     0.0
2+
0+
  1410.08 5 AB  EF H JK 4+ 1.8 ps 4     847.15 5 
  100
E2
   562.93
2+
  1539.46 6 A   EF      3(+)      431.0 5 
   976.50 5 
  100 7 
   50 2 

D+Q
  1108.44
   562.93
2+
2+
  1911.07 11 AB  EF H JK 0+ > 0.8 ps   1348.13 13 
  100

   562.93
2+
  2019.87 10 AB  EF    K (4+)      911.40 10 
  100

  1108.44
2+
  2204.9 4     E       (1,2+) 0.010 ps 4    1097.4 5 
  2203.8 5 
 
 


  1108.44
     0.0
2+
0+
  2284.22 24 A    F      (3)-     1175.7 5 
  100

  1108.44
2+
  2456 5      F             
  2478.2 5     E       (1,2+)     1915 1 
  2478.2 5 
 
 


   562.93
     0.0
2+
0+
  2503.6 4  B  EF      2+ 0.24 ps +55-10    1395.1 5 
  2503.6 5 
  100
   43


  1108.44
     0.0
2+
0+
  2554 5 ?     F             
  2591.10 16 A   E       (1+,2+)     1051.7 2 
  1482.5 3 
  2591.0 4 
   95 14 
  100 15 
   55 10 



  1539.46
  1108.44
     0.0
3(+)
2+
0+
  2624 5 ?     F             
  2654.51 21 A   E       (LE 4)     1546.0 4 
  2091.9 4 
  100 20 
   42 10 


  1108.44
   562.93
2+
2+
  2692.40 8 AB  EF H    3- 0.28 ps +15-8    1282.9 4 
  1583.9 5 
  2129.46 8 
  2691.6 4 
  <13
    9 3 
  100 3 
    7 2 




  1410.08
  1108.44
   562.93
     0.0
4+
2+
2+
0+
  2733.4 7  B  EF H    4+ 0.17 ps +18-8    1194.0 5 
 

  1539.46
3(+)
  2747.76 8 A   EF H    (1 TO 4) 0.33 ps +33-12    1208.02 13 
  1639.30 10 
  2185.20 17 
   28 2 
  100 3 
    9 1 



  1539.46
  1108.44
   562.93
3(+)
2+
2+
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  2768.76 14 AB  EF H    2+     1358.9 6 
  1660.30 14 
   24 8 
  100 7 


  1410.08
  1108.44
4+
2+
  2841.57 13 AB  EF      2+ 0.028 ps 8    1732.70 25 
  2278.80 17 
  100 9 
   61 5 


  1108.44
   562.93
2+
2+
  2897.7 5  B  EF      0+     2334.7 5 
  100

   562.93
2+
  2919.79 7 A   E       (1,2+) 0.21 ps +10-6    1811.10 12 
  2356.88 12 
  2919.85 10 
    9.2 6 
   27 2 
  100 4 



  1108.44
   562.93
     0.0
2+
2+
0+
  2921 5      F H    3-        
  2962.2 B  EF H    (5)-        
  2994 5  B   F H    4+        
  3007.8 4     E       (1,2+) 0.026 ps +28-13    1898.3 5 
  3008.6 5 
  100
  100


  1108.44
     0.0
2+
0+
  3041.0 6  B  EF      (2+) 0.23 ps +35-10    1130.2 5 
  2477.7 5 
 
 


  1911.07
   562.93
0+
2+
  3052.5 7     EF      (1 TO 5) 0.030 ps +14-10    1513.1 5 
  100

  1539.46
3(+)
  3071 5      F             
  3090 5 ?     F             
  3131.8 7     EF      (LE 4)     2023.3 5 
  100

  1108.44
2+
  3141.51 7 AB  EF      2+ 0.06 ps +7-4    1230.2 5 
  2578.55 9 
  3141.40 10 
 
   53 2 
  100 5 



  1911.07
   562.93
     0.0
0+
2+
0+
  3166 5      F             
  3182.21 6 AB  EF      (2+) 0.25 ps +35-11    1642.80 15 
  2073.75 7 
  2619.20 10 
   22 2 
  100 3 
   53 2 



  1539.46
  1108.44
   562.93
3(+)
2+
2+
  3195 5  B   F      (4-,5-,6-)        
  3224 5      F             
  3231.8 4 AB   F H    4+     2668.8 4 ?
  100

   562.93
2+
  3268 5      F H    (4+)        
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  3312.33 12 AB   F H    3-     1902.2 2 
  2203.86 16 
   31 3 
  100 8 


  1410.08
  1108.44
4+
2+
  3317 5  B   F      (0+)        
  3322.85 7 A   E       (2+,3,4+) 0.16 ps +14-6    1912.7 1 
  2214.36 8 
  2759.95 14 
   26 2 
  100 3 
   49 3 



  1410.08
  1108.44
   562.93
4+
2+
2+
  3334.7 3 ?A           (2+)     1924.6 3 ?
  3334.6 5 ?
  100 14 
   97 21 


  1410.08
     0.0
4+
0+
  3349 5      F             
  3391 5      F H    (4+,5-)        
  3409.19 19 A    F      (1 TO 4)      661.4 2 ?
  100

  2747.76
(1 TO 4)
  3420.4 5     E       (1,2+)     3420.3 5 
  100

     0.0
0+
  3439 5      F             
  3453 5      F      (3+,4+,5+)        
  3477.65 17 AB          (1 TO 4)      335.9 5 ?
  2369.8 6 ?
  2914.6 2 ?
  100 25 
    5 2 
   14 2 



  3141.51
  1108.44
   562.93
2+
2+
2+
  3484.1 9     EF H    3-     2074 1 
  2921 1 
 
 


  1410.08
   562.93
4+
2+
  3506 5      F             
  3533 5      F             
  3545 5  B   F H    2+        
  3585 5      F H    (2)+        
  3606 5      F             
  3632.75 10 A           (2+)     1612.7 3 
  1721.9 7 
  2524.0 2 
  3069.90 13 
   49 7 
   16 5 
   86 6 
  100 6 




  2019.87
  1911.07
  1108.44
   562.93
(4+)
0+
2+
2+
  3640 5  B   F H    (4-,5-,6-)        
  3658 5  B   F H           
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  3691 5      F             
  3721 5  B   F H    (5)-        
  3748 5      F H    2+        
  3788 5  B   F             
  3805 5  B   F             
  3815 5      F             
  3848 5      F             
  3868 5      F             
  3883 5  B   F H           
  3887.05 19 AB   F H    (3-)     2347.40 25 
  2476.60 40 
  2779.1 4 
  3325.2 12 
   55 6 
   27 6 
  100 10 
   14 7 




  1539.46
  1410.08
  1108.44
   562.93
3(+)
4+
2+
2+
  3951.89 7 A           (1,2+)     1259.9 5 
  2040.70 25 
  2843.50 9 
  3388.75 12 
  3951.70 14 
    7 2 
    8 2 
   38 2 
   67 4 
  100 8 





  2692.40
  1911.07
  1108.44
   562.93
     0.0
3-
0+
2+
2+
0+
  3972 5      F H    (4+)        
  3997 5      F H    4+        
  4026 5 ?     F             
  4056 5      F             
  4073 5      F H           
  4099 5      F H    5-        
  4122.3 4 ?A    F      (1,2+)     3559.5 4 ?
  4121.8 5 ?
  100 8 
   43 6 


   562.93
     0.0
2+
0+
  4153 5      F H           
  4192.85 12 ?A    F      (2+,3,4+)     1273.05 10 ?
  2782.70 40 ?
  100 6 
   84 7 


  2919.79
  1410.08
(1,2+)
4+
  4209 5      F H    3-        
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  4239.40 15 A    F      (1 TO 4)      927.05 10 ?
  3130.7 6 ?
  100 6 
   23 5 


  3312.33
  1108.44
3-
2+
  4249 5      F H    4+        
  4272 5      F             
  4326.5 2 A    F      (1 TO 4)     1014.2 2 ?
  1634.0 2 ?
   31 5 
  100 5 


  3312.33
  2692.40
3-
3-
  4363.5 2 A    F H    4+      885.83 10 ?
  1443.9 5 ?
  100 8 
   20 5 


  3477.65
  2919.79
(1 TO 4)
(1,2+)
  4399 5      F H    (3+,4+,5+)        
  4426 10      F H           
  4444 10      F      (3+,4+,5+)        
  4476.5 2 ?A    F      (LE 4)      843.8 2 ?
  3913.3 5 ?
  100 10 
   11 3 


  3632.75
   562.93
(2+)
2+
  4488 10      F H    3-        
  4536 10      F H    (3+,4+,5+)        
  4570 10      F H           
  4611 10      F H    (3-)        
  4659 10      F H    (5-)        
  4698 10      F             
  4719.9 2 A           (2,3,4)     1310.6 3 ?
  1878.3 2 
  2435.6 3 
   75 13 
   98 11 
  100 13 



  3409.19
  2841.57
  2284.22
(1 TO 4)
2+
(3)-
  4736 10      F             
  4767 10      F             
  4784.1 3 ?A           (1 TO 4)     1461.2 3 ?
  3675.60 45 ?
   74 15 
  100 11 


  3322.85
  1108.44
(2+,3,4+)
2+
  4812.5 2 ?A    F      (2+,3,4+)     1892.7 2 ?
  3402.4 3 ?
  100 7 
   33 5 


  2919.79
  1410.08
(1,2+)
4+
  4814.8 3 ?A    F      (1 TO 4)     1182.1 3 ?
  1502.3 5 ?
  100 15 
   96 13 


  3632.75
  3312.33
(2+)
3-
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  4839 10      F      (3+,4+,5+)        
  4868 10      F             
  4939 10      F             
  5122.48 14 A           (1 TO 4)     1489.6 4 
  1940.30 14 
  1980.4 5 
   34 10 
  100 7 
   32 6 



  3632.75
  3182.21
  3141.51
(2+)
(2+)
2+
  5276 10      F             
  5522.6 2 A           (1 TO 4)     1282.9 4 ?
  2680.9 3 
  2868.1 2 
  <81
   92 10 
  100 14 



  4239.40
  2841.57
  2654.51
(1 TO 4)
2+
(LE 4)
  5663.37 15 A           (2+)     2481.1 4 
  2970.90 15 
  3752.10 50 
  4253.3 5 
   50 10 
  100 12 
   42 9 
   57 9 




  3182.21
  2692.40
  1911.07
  1410.08
(2+)
3-
0+
4+
  5749.9 4 ?A           (1 TO 4)     2981.2 4 ?
  3465.5 4 ?
  100 20 
   68 13 


  2768.76
  2284.22
2+
(3)-
  5883.0 3 ?A           (1 TO 4)     2700.5 4 ?
  3190.6 3 ?
   94 16 
  100 13 


  3182.21
  2692.40
(2+)
3-
  6021.1 3 ?A           (1 TO 4)     3328.7 8 ?
  3366.5 3 ?
  3736.90 45 ?
  100 30 
   73 14 
   80 20 



  2692.40
  2654.51
  2284.22
3-
(LE 4)
(3)-
  6065.2 4 ?A           (1 TO 4)     2882.9 9 ?
  3145.3 4 ?
   47 16 
  100 20 


  3182.21
  2919.79
(2+)
(1,2+)

E(level): For levels populated in γ-ray studies, E(level)’s are from least-squares fit to Eγ’s. In other cases values are averages from different reaction studies. In (p,p’) and (α,α’), values for similar levels differ systematically (higher by 12 keV to 45 keV in the 3700-4600 range). Values from (p,p’) are adopted here (since many more levels are reported in (p,p’) than in (α,α’)), although, it is difficult to know as to which dataset is more accurate

Jπ(level): log ft values from 76Ga decay have not been used in assigning Jπ’s since Jπ(76Ga g.s.)=(3-) is only tentative. Moreover, several γ-ray placements remain uncertain. For levels above ≈3000, values are given in parentheses when available only from L(p,p’) and/or L(t,p) due to following reasons: 1. The agreement of σ(θ) fits to DWBA is not good over the whole angular range. 2. The correspondence between levels in different reactions is not unique due to large level density and large uncertainties in E(level) from particle reactions

T1/2(level): From ΔS(a) in (n,n’γ) (1990DoZU,1984KoZN) for levels above 2 MeV, below this values are from B(E2) in Coul. ex. see 1982AuZW also for measurement of Gamow-Teller strength for double β- decaying nuclei

E(γ): From 76Ga β-, unless seen in (n,n’γ) only

I(γ): Photon branching ratios, primarily from 76Ga β- decay

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Additional Gamma Data:













E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityMixing
Ratio
Additional Data
   562.93 2+ 18.2 ps 2     562.93 3 E2 B(E2)(W.u.)=29 1
  1108.44 2+ 8.0 ps 15     545.51 3 E2+M1+3.5 15B(E2)(W.u.)=42 9, B(M1)(W.u.)=8E-4 4
2+ 8.0 ps 15    1108.41 8 E2 B(E2)(W.u.)=0.90 22
  1410.08 4+ 1.8 ps 4     847.15 5 E2 B(E2)(W.u.)=38 9
  1911.07 0+ > 0.8 ps   1348.13 13   B(E2)(W.u.)<7.4
  2503.6 2+ 0.24 ps +55-10    2503.6 5   B(E2)(W.u.)=0.4 3
  2692.40 3- 0.28 ps +15-8    2691.6 4   B(E3)(W.u.)=700 350
  2919.79 (1,2+) 0.21 ps +10-6    2919.85 10   B(E2)(W.u.)=0.5 2
  3141.51 2+ 0.06 ps +7-4    3141.40 10   B(E2)(W.u.)=1.1 +22-6

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.00+ STABLE 1990Va18 give T1/2(0 neutrino decay)>1.3×1024 y, T1/2(2 neutrino decay)=9×1020 y 1, T1/2(0 neutrino, B (Majoron) decay)>1×1022 y. T1/2(2 neutrino decay)=1.42×1021 y 13 (1994Ba15). See references quoted above for other experimental T1/2 values and theoretical calculations of 76Ge ββ decay.
   562.932+ 18.2 ps 2  μ=+0.838 46 (1989Ra17,1984Pa20), Q=-0.19 6 (1989Ra17,1980Le16)
β2(coul.ex.)=0.267 (1980Le24).
  1108.442+ 8.0 ps 15  β2(coul.ex.)=0.047 (1980Le24).
  1410.084+ 1.8 ps 4  β4(pol p,p’)=0.064 11, 0.024 6, 0.020 20, 0.001 (1993Mo05,1986MoZR), 0.02 ((p,p’),1983Ra32).
  2692.403- 0.28 ps +15-8  β3(α,α’)=0.11 (1988Ba70).
  29213-   2921 level is treated as different from 2920 level since an intense g.s. transition from 2920 level is inconsistent with L(α,α’)=3 for a 2921 group.
  3141.512+ 0.06 ps +7-4  XREF: F(3150).
  3231.84+   XREF: F(3240).
  3409.19(1 TO 4)   XREF: F(3402).
Jπ(level): Possible β- feeding from (2+,3+) (see 76Ga β- decay). Since the level scheme is not well established, the Jπ assignment is considered as tentative.
  3477.65(1 TO 4)   Jπ(level): Possible β- feeding from (2+,3+) (see 76Ga β- decay). Since the level scheme is not well established, the Jπ assignment is considered as tentative.
  3883   XREF: H(3871).
  3887.05(3-)   XREF: F(3904)H(3893).
  3972(4+)   XREF: H(3952).
  39974+   XREF: H(3978).
  4073   XREF: H(4052).
  40995-   XREF: H(4073).
  4153   XREF: H(4126).
  42093-   XREF: H(4180).
  4239.40(1 TO 4)   Jπ(level): Possible β- feeding from (2+,3+) (see 76Ga β- decay). Since the level scheme is not well established, the Jπ assignment is considered as tentative.
  42494+   XREF: H(4220).
  4326.5(1 TO 4)   Jπ(level): Possible β- feeding from (2+,3+) (see 76Ga β- decay). Since the level scheme is not well established, the Jπ assignment is considered as tentative.
  4363.54+   XREF: H(4332).
  4399(3+,4+,5+)   XREF: H(4367).
  4426   XREF: H(4402).
  4476.5(LE 4)   XREF: F(4468).
E(level)Jπ(level)T1/2(level)Comments
  44883-   XREF: H(4453).
  4536(3+,4+,5+)   XREF: H(4500).
  4570   XREF: H(4530).
  4611(3-)   XREF: H(4570).
  4659(5-)   XREF: H(4615).
  4784.1(1 TO 4)   Jπ(level): Possible β- feeding from (2+,3+) (see 76Ga β- decay). Since the level scheme is not well established, the Jπ assignment is considered as tentative.
  4814.8(1 TO 4)   Jπ(level): Possible β- feeding from (2+,3+) (see 76Ga β- decay). Since the level scheme is not well established, the Jπ assignment is considered as tentative.
  5122.48(1 TO 4)   Jπ(level): Possible β- feeding from (2+,3+) (see 76Ga β- decay). Since the level scheme is not well established, the Jπ assignment is considered as tentative.
  5522.6(1 TO 4)   Jπ(level): Possible β- feeding from (2+,3+) (see 76Ga β- decay). Since the level scheme is not well established, the Jπ assignment is considered as tentative.
  5749.9(1 TO 4)   Jπ(level): Possible β- feeding from (2+,3+) (see 76Ga β- decay). Since the level scheme is not well established, the Jπ assignment is considered as tentative.
  5883.0(1 TO 4)   Jπ(level): Possible β- feeding from (2+,3+) (see 76Ga β- decay). Since the level scheme is not well established, the Jπ assignment is considered as tentative.
  6021.1(1 TO 4)   Jπ(level): Possible β- feeding from (2+,3+) (see 76Ga β- decay). Since the level scheme is not well established, the Jπ assignment is considered as tentative.
  6065.2(1 TO 4)   Jπ(level): Possible β- feeding from (2+,3+) (see 76Ga β- decay). Since the level scheme is not well established, the Jπ assignment is considered as tentative.

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Additional Gamma Comments:

E(level)E(gamma)Comments
  2692.40  1282.9E(γ): Multiply placed with undivided intensity
I(γ): Multiply placed with undivided intensity
  2691.6I(γ): this value is suspect since G3(W.u.)=9.4 (p,p’); 11.7 (α,α’) suggests Iγ≈0.1. This γ ray was reported in 76Ga β- decay only, where it may have been contributed mainly by a sum line
  3141.51  1230.2E(γ): From (n,n’γ) only
  3231.8  2668.8E(γ): Placement suggested by the evaluator
  5522.6  1282.9E(γ): Multiply placed with undivided intensity
I(γ): Multiply placed with undivided intensity

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