ADOPTED LEVELS, GAMMAS for 160Hf

Author: N. Nica |  Citation: Nucl. Data Sheets 176, 1 (2021) |  Cutoff date: 1-May-2021 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-10120 keV 60S(n)= 11157 keV 19S(p)= 3520 keV 40Q(α)= 4901.9 keV 26
Reference: 2021WA16

References:
  A  164W α decay  B  (HI,xnγ)

General Comments:

All the data on the excited states are derived from the heavy-ion-induced reaction study of 2000Di18 and, to a lesser extent, that of 1990Mu14.

According to 2009Ha42 the nucleus 160Hf is populated via ε decay of 160Ta

Q-value: S(2n)=19979 20, S(2p)=4507 12, Q(εp)=2606 20 (2021Wa16)










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0.0AB 0+ 13.6 s 2 
% ε = 99.3 2
% α = 0.7 2
     
   389.40 10  B 2+     389.40 10 
  100
E2
     0.0
0+
   898.26 15  B 4+     508.86 10 
  100
E2
   389.40
2+
  1493.35 18  B 6+     595.09 10 
  100
E2
   898.26
4+
  2147.48 20  B 8+     654.13 10 
  100
E2
  1493.35
6+
  2255.32 22  B 7(-)     762.0 2 
  100
(E1)
  1493.35
6+
  2713.81 22  B 9(-)     458.47 13 
  566.24 12 
   39 8 
  100 18 
(E2)
(E1)
  2255.32
  2147.48
7(-)
8+
  2747.86 23  B 9(-)     492.7 3 
  600.6 5 
   18 4 
  100 19 
[E2]
(E1)
  2255.32
  2147.48
7(-)
8+
  2814.68 22  B 10+     667.25 11 
  100
E2
  2147.48
8+
  2964.33 24  B 10(-)     216.57 13 
  250.42 13 
   79 21 
  100 25 
(M1)
(M1)
  2747.86
  2713.81
9(-)
9(-)
  3026.12 22  B 11(-)     211.48 10 
  278.21 12 
  312.30 11 
   89 17 
   44 10 
  100 19 
(E1)
E2
E2
  2814.68
  2747.86
  2713.81
10+
9(-)
9(-)
  3474.8 3  B 12+     660.12 13 
  100
E2
  2814.68
10+
  3502.8 3  B 12(-)     538.5 2 
  100
(E2)
  2964.33
10(-)
  3529.61 24  B 13(-)     503.49 10 
  100
E2
  3026.12
11(-)
  4076.3 6  B (14+)     601.5 5 
  100
(E2)
  3474.8
12+
  4107.8 4  B (14-)     605.0 2 
  100
(E2)
  3502.8
12(-)
  4120.4 3  B 15(-)     590.76 12 
  100
E2
  3529.61
13(-)
  4735.0 8  B (16+)     658.7 5 
  100
(E2)
  4076.3
(14+)
  4747.0 3  B (17-)     626.63 11 
  100
E2
  4120.4
15(-)
  4761.7 5  B (16-)     653.9 2 
  100

  4107.8
(14-)
  5351.4 5  B (18-)     589.7 2 
  100
(E2)
  4761.7
(16-)
  5415.4 8  B (18+)     680.4 2 
  100

  4735.0
(16+)
  5505.8 4  B (19-)     758.8 2 
  100
(E2)
  4747.0
(17-)
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  6087.0 5  B (20-)     735.58 15 
  100
E2
  5351.4
(18-)
  6283.9 4  B (21-)     778.10 13 
  100
E2
  5505.8
(19-)
  7000.3 5  B (23-)     716.4 2 
  100
E2
  6283.9
(21-)
  7747.5 5  B (25-)     747.2 2 
  100

  7000.3
(23-)

E(level): From a least-squares fit to the listed Eγ values.

Jπ(level): Spin-parity assignments reported in the heavy-ion-induced reaction studies and amended by evaluator based on re-evaluated γ multipolarities and the usual considerations of band structure (stretched transitions and increasing spin values with increasing excitation energy), theoretical arguments and systematics.

M(γ): Re-evaluated from (HI,xnγ) dataset that measured dipole or quadrupole transition types based on γ(θ) or DCO but did not measure the electric or magnetic character. The dipole assignments are adopted as tentative while for the quadrupole transitions the assignments of the authors are adopted (all electric - see (HI,xnγ) dataset). All transitions are stretched.

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Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - GROUND-STATE band
     0.0 0+ 13.6 s 2 
% ε = 99.3 2
% α = 0.7 2
     
   389.40 10  2+     389.40 10 
  100
E2
     0.0
0+
   898.26 15  4+     508.86 10 
  100
E2
   389.40
2+
  1493.35 18  6+     595.09 10 
  100
E2
   898.26
4+
  2147.48 20  8+     654.13 10 
  100
E2
  1493.35
6+
  2814.68 22  10+     667.25 11 
  100
E2
  2147.48
8+
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - ALIGNED POSITIVE-PARITY band
  3474.8 3  12+        
  4076.3 6  (14+)     601.5 5 
  100
(E2)
  3474.8
12+
  4735.0 8  (16+)     658.7 5 
  100
(E2)
  4076.3
(14+)
  5415.4 8  (18+)     680.4 2 
  100

  4735.0
(16+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - NEGATIVE-PARITY band, SIGNATURE=1
  2255.32 22  7(-)        
  2713.81 22  9(-)     458.47 13 
  566.24 12 
   39 8 
  100 18 
(E2)
(E1)
  2255.32
  2147.48
7(-)
8+
  3026.12 22  11(-)     211.48 10 
  278.21 12 
  312.30 11 
   89 17 
   44 10 
  100 19 
(E1)
E2
E2
  2814.68
  2747.86
  2713.81
10+
9(-)
9(-)
  3529.61 24  13(-)     503.49 10 
  100
E2
  3026.12
11(-)
  4120.4 3  15(-)     590.76 12 
  100
E2
  3529.61
13(-)
  4747.0 3  (17-)     626.63 11 
  100
E2
  4120.4
15(-)
  5505.8 4  (19-)     758.8 2 
  100
(E2)
  4747.0
(17-)
  6283.9 4  (21-)     778.10 13 
  100
E2
  5505.8
(19-)
  7000.3 5  (23-)     716.4 2 
  100
E2
  6283.9
(21-)
  7747.5 5  (25-)     747.2 2 
  100

  7000.3
(23-)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 4 - NEGATIVE-PARITY band, SIGNATURE=0
  2964.33 24  10(-)        
  3502.8 3  12(-)     538.5 2 
  100
(E2)
  2964.33
10(-)
  4107.8 4  (14-)     605.0 2 
  100
(E2)
  3502.8
12(-)
  4761.7 5  (16-)     653.9 2 
  100

  4107.8
(14-)
  5351.4 5  (18-)     589.7 2 
  100
(E2)
  4761.7
(16-)
  6087.0 5  (20-)     735.58 15 
  100
E2
  5351.4
(18-)

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
   389.40 2+     389.40 10 E20.0374α=0.0374, α(K)=0.0277 4, α(L)=0.00742 11, α(M)=0.001762 25, α(N)=0.000413 6, α(O)=5.76×10-5 8, α(P)=2.07E-6 3
   898.26 4+     508.86 10 E20.0185α=0.0185, α(K)=0.01440 21, α(L)=0.00317 5, α(M)=0.000742 11, α(N)=0.0001746 25, α(O)=2.50×10-5 4, α(P)=1.103E-6 16
  1493.35 6+     595.09 10 E20.01266α=0.01266, α(K)=0.01004 14, α(L)=0.00202 3, α(M)=0.000468 7, α(N)=0.0001103 16, α(O)=1.599×10-5 23, α(P)=7.77E-7 11
  2147.48 8+     654.13 10 E20.01016α=0.01016, α(K)=0.00814 12, α(L)=0.001557 22, α(M)=0.000360 5, α(N)=8.48×10-5 12, α(O)=1.239E-5 18, α(P)=6.33E-7 9
  2255.32 7(-)     762.0 2 (E1)0.00274α=0.00274, α(K)=0.00232 4, α(L)=0.000329 5, α(M)=7.33×10-5 11, α(N)=1.736E-5 25, α(O)=2.64E-6 4, α(P)=1.716E-7 24
  2713.81 9(-)     458.47 13 (E2)0.0241α=0.0241, α(K)=0.0185 3, α(L)=0.00437 7, α(M)=0.001028 15, α(N)=0.000241 4, α(O)=3.42×10-5 5, α(P)=1.402E-6 20
9(-)     566.24 12 (E1)0.00503α=0.00503, α(K)=0.00424 6, α(L)=0.000611 9, α(M)=0.0001367 20, α(N)=3.23×10-5 5, α(O)=4.89E-6 7, α(P)=3.10E-7 5
  2747.86 9(-)     492.7 3 [E2]0.0201α=0.0201, α(K)=0.01554 22, α(L)=0.00350 5, α(M)=0.000819 12, α(N)=0.000193 3, α(O)=2.75×10-5 4, α(P)=1.187E-6 17
9(-)     600.6 5 (E1)0.00444α=0.00444, α(K)=0.00375 6, α(L)=0.000538 8, α(M)=0.0001204 17, α(N)=2.85×10-5 4, α(O)=4.31E-6 6, α(P)=2.75E-7 4
  2814.68 10+     667.25 11 E20.00971α=0.00971, α(K)=0.00780 11, α(L)=0.001476 21, α(M)=0.000341 5, α(N)=8.04×10-5 12, α(O)=1.176E-5 17, α(P)=6.06E-7 9
  2964.33 10(-)     216.57 13 (M1)0.452α=0.452, α(K)=0.377 6, α(L)=0.0582 9, α(M)=0.01313 19, α(N)=0.00312 5, α(O)=0.000479 7, α(P)=3.19×10-5 5
10(-)     250.42 13 (M1)0.303α=0.303, α(K)=0.253 4, α(L)=0.0389 6, α(M)=0.00878 13, α(N)=0.00209 3, α(O)=0.000320 5, α(P)=2.13×10-5 3
  3026.12 11(-)     211.48 10 (E1)0.0511α=0.0511, α(K)=0.0426 6, α(L)=0.00660 10, α(M)=0.001485 21, α(N)=0.000349 5, α(O)=5.13×10-5 8, α(P)=2.87E-6 4
11(-)     278.21 12 E20.0996α=0.0996, α(K)=0.0673 10, α(L)=0.0247 4, α(M)=0.00597 9, α(N)=0.001396 20, α(O)=0.000188 3, α(P)=4.74×10-6 7
11(-)     312.30 11 E20.0703α=0.0703, α(K)=0.0493 7, α(L)=0.01608 23, α(M)=0.00386 6, α(N)=0.000904 13, α(O)=0.0001234 18, α(P)=3.55×10-6 5
  3474.8 12+     660.12 13 E20.00995α=0.00995, α(K)=0.00798 12, α(L)=0.001519 22, α(M)=0.000351 5, α(N)=8.28×10-5 12, α(O)=1.210E-5 17, α(P)=6.20E-7 9
  3502.8 12(-)     538.5 2 (E2)0.01609α=0.01609, α(K)=0.01262 18, α(L)=0.00268 4, α(M)=0.000626 9, α(N)=0.0001473 21, α(O)=2.12×10-5 3, α(P)=9.70E-7 14
  3529.61 13(-)     503.49 10 E20.0190α=0.0190, α(K)=0.01476 21, α(L)=0.00327 5, α(M)=0.000767 11, α(N)=0.000180 3, α(O)=2.58×10-5 4, α(P)=1.130E-6 16
  4076.3 (14+)     601.5 5 (E2)0.01234α=0.01234, α(K)=0.00981 14, α(L)=0.00196 3, α(M)=0.000454 7, α(N)=0.0001070 16, α(O)=1.553×10-5 22, α(P)=7.59E-7 11
  4107.8 (14-)     605.0 2 (E2)0.01217α=0.01217, α(K)=0.00968 14, α(L)=0.00193 3, α(M)=0.000447 7, α(N)=0.0001052 15, α(O)=1.528×10-5 22, α(P)=7.49E-7 11
  4120.4 15(-)     590.76 12 E20.01288α=0.01288, α(K)=0.01021 15, α(L)=0.00206 3, α(M)=0.000478 7, α(N)=0.0001126 16, α(O)=1.632×10-5 23, α(P)=7.90E-7 11
  4747.0 (17-)     626.63 11 E20.01121α=0.01121, α(K)=0.00895 13, α(L)=0.001748 25, α(M)=0.000405 6, α(N)=9.54×10-5 14, α(O)=1.390E-5 20, α(P)=6.94E-7 10
  5351.4 (18-)     589.7 2 (E2)0.01293α=0.01293, α(K)=0.01025 15, α(L)=0.00207 3, α(M)=0.000480 7, α(N)=0.0001132 16, α(O)=1.640×10-5 23, α(P)=7.93E-7 12
  5505.8 (19-)     758.8 2 (E2)0.00729α=0.00729, α(K)=0.00592 9, α(L)=0.001059 15, α(M)=0.000243 4, α(N)=5.74×10-5 8, α(O)=8.48E-6 12, α(P)=4.62E-7 7
  6087.0 (20-)     735.58 15 E20.00781α=0.00781, α(K)=0.00633 9, α(L)=0.001146 16, α(M)=0.000263 4, α(N)=6.22×10-5 9, α(O)=9.16E-6 13, α(P)=4.93E-7 7
E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
  6283.9 (21-)     778.10 13 E20.00691α=0.00691, α(K)=0.00562 8, α(L)=0.000995 14, α(M)=0.000228 4, α(N)=5.39×10-5 8, α(O)=7.97E-6 12, α(P)=4.39E-7 7
  7000.3 (23-)     716.4 2 E20.00828α=0.00828, α(K)=0.00669 10, α(L)=0.001226 18, α(M)=0.000282 4, α(N)=6.66×10-5 10, α(O)=9.80E-6 14, α(P)=5.21E-7 8

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.00+ 13.6 s 2 
% ε = 99.3 2
% α = 0.7 2
g.s. deformation parameters ε2=0.142, ε4=-0.013 (2009Pa17).
E(level): GROUND-STATE band.
   389.402+   E(level): GROUND-STATE band.
   898.264+   E(level): GROUND-STATE band.
  1493.356+   E(level): GROUND-STATE band.
  2147.488+   E(level): GROUND-STATE band.
  2255.327(-)   E(level): NEGATIVE-PARITY band, SIGNATURE=1.
  2713.819(-)   E(level): NEGATIVE-PARITY band, SIGNATURE=1.
  2814.6810+   E(level): GROUND-STATE band.
  2964.3310(-)   E(level): NEGATIVE-PARITY band, SIGNATURE=0.
  3026.1211(-)   E(level): NEGATIVE-PARITY band, SIGNATURE=1.
  3474.812+   E(level): ALIGNED POSITIVE-PARITY band.
  3502.812(-)   E(level): NEGATIVE-PARITY band, SIGNATURE=0.
  3529.6113(-)   E(level): NEGATIVE-PARITY band, SIGNATURE=1.
  4076.3(14+)   E(level): ALIGNED POSITIVE-PARITY band.
  4107.8(14-)   E(level): NEGATIVE-PARITY band, SIGNATURE=0.
  4120.415(-)   E(level): NEGATIVE-PARITY band, SIGNATURE=1.
  4735.0(16+)   E(level): ALIGNED POSITIVE-PARITY band.
  4747.0(17-)   E(level): NEGATIVE-PARITY band, SIGNATURE=1.
  4761.7(16-)   E(level): NEGATIVE-PARITY band, SIGNATURE=0.
  5351.4(18-)   E(level): NEGATIVE-PARITY band, SIGNATURE=0.
  5415.4(18+)   E(level): ALIGNED POSITIVE-PARITY band.
  5505.8(19-)   E(level): NEGATIVE-PARITY band, SIGNATURE=1.
  6087.0(20-)   E(level): NEGATIVE-PARITY band, SIGNATURE=0.
  6283.9(21-)   E(level): NEGATIVE-PARITY band, SIGNATURE=1.
  7000.3(23-)   E(level): NEGATIVE-PARITY band, SIGNATURE=1.
E(level)Jπ(level)T1/2(level)Comments
  7747.5(25-)   E(level): NEGATIVE-PARITY band, SIGNATURE=1.

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Additional Gamma Comments:

E(level)E(gamma)Comments
  2747.86   600.6I(γ): value includes contribution from the 601.5 γ
  4076.3   601.5I(γ): value includes contribution from the 600.6 γ
  4735.0   658.7M(γ): assigned (E2) in 20008Di18 but no γ(θ) value

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