ADOPTED LEVELS, GAMMAS for 89Mo

Author: Balraj Singh |  Citation: ENSDF |  Cutoff date: 30-Nov-2021 

Author: Balraj Singh |  Citation: Nucl. Data Sheets 114, 1 (2013) |  Cutoff date: 20-Oct-2012 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-7620 keV 5S(n)= 10400 keV 5S(p)= 6130 keV 60Q(α)= -4265 keV 8
Reference: 2021WA16

References:
  A  89Mo IT decay (190 MS)  B  89Tc ε decay (12.8 S)
  C  89Tc ε decay (12.9 S)  D  58Ni(36Ar,4PNG),60Ni(32S,2pnγ)
  E  90Zr(3He,4nγ)  F  92Mo(3He,6He)

General Comments:

89Mo identified by 1980Pa02 in 92Mo(3He,6He) reaction experiment together with several excited states, but isotope half-life was not measured. 1975Ha11, while disproving assignment of a 7.1-min half-life to 89Mo by 1964Bu12, suggested upper limits of 2 min and 1 min for the two activities. 1981Ga05 and 1980Ga16 reported half-life measurements for the two activities, later confirmed by 1983OxZZ and 1985Be12

The following levels (gammas) from (3He,4nγ) (1979DeYZ,1979DeZV) only and not reported in any of the later (HI,xnγ) studies (1993We04,1993Ga19,1992WeZS) have been omitted: 496.9 (496.8); 626.4 (129.2,627.0); 1156.0 (659.5,1155.5); 1253.1 (627.0,755.8); 1440.1 (813.7). Also the following levels and gammas reported by 1992WeZS only in (HI,xnγ) are omitted due to lack of confirmation by 1993We04 and 1993Ga19: 2548 (277γ); 2911 (327γ); 3502 (352γ); 4365 (297γ); 806γ (from 5170); 975γ (from 3559); 1090γ (from 4650); 1126γ (from 4262)

Multi-particle shell model configurations of seniority=3,5,7 are given in detail by 1993We04 and 1993Ga19. Comparisons of experimental γ branching ratios with those calculated for these configurations are given by 1995Za11

Measured mass excess of 89Mo: 2008We10, JYFLTRAP

Q-value: Q(ε)=5611 24, Q(εp)=1325 7, S(2n)=24273 5, S(2p)=10246 6 (2021Wa16)










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0.0ABCDEF (9/2+) 2.11 m 10 
% ε = 100
     
   118.8 1 ABCDEF (7/2+)      118.8 1 
  100

     0.0
(9/2+)
   387.5 2 A CDEF (1/2-) 190 ms 15 
% IT = 100
   268.6 2 
  100
(E3)
   118.8
(7/2+)
  1000.7 1    D   (11/2+)     1000.7 1 
  100

     0.0
(9/2+)
  1016.4 1    D   (13/2+)     1016.3 1 
  100
(Q)
     0.0
(9/2+)
  1253 15      F        
  1645.8 1    D   (11/2+)      629.5 2 
  1527.2 2 
  1645.9 2 
   18 7 
  100 10 
   44 8 



  1016.4
   118.8
     0.0
(13/2+)
(7/2+)
(9/2+)
  1740 15      F        
  2008.4 1    D   (13/2-)      362.6 1 
   991.8 1 
  1007.9 2 
   34 5 
  100 7 
   45 5 
D
(D)
D
  1645.8
  1016.4
  1000.7
(11/2+)
(13/2+)
(11/2+)
  2096.4 1    D   (17/2+)     1080.0 1 
  100
Q
  1016.4
(13/2+)
  2110 15      F        
  2271.2 1    D   (17/2-) 1.14 ns 8     174.8 1 
   262.8 1 
  100 2 
   59 2 
(E1)
(E2)
  2096.4
  2008.4
(17/2+)
(13/2-)
  2415.8 1    D   (17/2+)      319.5 1 
  1399.3 1 
   42.9 14 
  100.0 14 

Q
  2096.4
  1016.4
(17/2+)
(13/2+)
  2454.5 2    D   (17/2-) 5.8 ps 11     183.5 1 
  100
[M1]
  2271.2
(17/2-)
  2583.7 1    D   (21/2+) 9.49 ns 21     168.0 1 
   487.3 1 
   79 2 
  100 2 
(E2)
(E2)
  2415.8
  2096.4
(17/2+)
(17/2+)
  3134.0 2    D   (23/2+) < 1.1 ps    550.3 1 
  100
[M1]
  2583.7
(21/2+)
  3151.1 2    D   (21/2-) 1.8 ps +6-10     696.8 1 
   879.8 1 
    4 1 
  100 1 
[E2]
(E2)
  2454.5
  2271.2
(17/2-)
(17/2-)
  3558.4 2    D   (25/2+) < 1.0 ps    424.4 1 
  100
[M1]
  3134.0
(23/2+)
  3701.8 2    D   (23/2-)      550.7 1 
  100
D
  3151.1
(21/2-)
  3716.7 2    D   (25/2+) 0.8 ps 6     582.6 1 
  100
M1+E2
  3134.0
(23/2+)
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  4069.0 2    D   (25/2-) 2.8 ps +6-3     367.2 1 
   917.8 1 
   30 3 
  100 3 
[M1]
(E2)
  3701.8
  3151.1
(23/2-)
(21/2-)
  4260.6 2    D   (27/2+) 0.28 ps +7-14     543.9 1 
   702.3 1 
   41 4 
  100 4 
[M1]
[M1]
  3716.7
  3558.4
(25/2+)
(25/2+)
  4575.4 2    D   (27/2-) 0.69 ps +28-14     506.5 1 
  100
[M1]
  4069.0
(25/2-)
  4649.1 2    D   (29/2+)      388.4 1 
  100
D
  4260.6
(27/2+)
  4980.7 2    D   (29/2+) < 0.7 ps    331.6 1 
   720.1 1 
  1264.0 1 
   73 8 
   97 11 
  100 11 
[M1]
[M1]
(E2)
  4649.1
  4260.6
  3716.7
(29/2+)
(27/2+)
(25/2+)
  5170.9 2    D   (29/2-) < 0.76 ps    595.5 1 
  1101.9 1 
  100 5 
   27 5 
[M1]
[E2]
  4575.4
  4069.0
(27/2-)
(25/2-)
  5251.0 2    D   (31/2+) 2.3 ps 8     270.3 1 
   601.9 1 
   990.4 2 
  100 4 
   39 4 
   57 4 
[M1]
[M1]
[E2]
  4980.7
  4649.1
  4260.6
(29/2+)
(29/2+)
(27/2+)
  5340 25      F        
  5420.0 2    D   (31/2-) < 0.7 ps    249.0 1 
   844.9 2 
  100 5 
   54 5 
[M1]
(E2)
  5170.9
  4575.4
(29/2-)
(27/2-)
  5480 25      F        
  5643.0 2    D   (33/2+) 0.55 ps 14     392.0 1 
  100
[M1]
  5251.0
(31/2+)
  6436.4 2    D   (35/2-) 2.6 ps 6    1016.4 1 
  100
[E2]
  5420.0
(31/2-)
  6470.6 3    D   (35/2+)      827.6 1 
  100

  5643.0
(33/2+)
  6755.9 3    D   (37/2+)      285.3 1 
  100

  6470.6
(35/2+)
  7590.1 3    D   (39/2-) 1.39 ps 14    1153.7 1 
  100
(E2)
  6436.4
(35/2-)

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

Jπ(level): From 1995Za11, based on γ(θ) (1993We04,1993Ga19) and γγ(θ)(DCO) of 1993We04. Jπ values of g.s., 119 and 388 states are based on systematics and probable shell-model configurations

T1/2(level): From RDDS (1995Za11), unless otherwise stated

I(γ): Photon branching ratios from 1995Za11

M(γ): From (HI,xnγ). See details about ΔJ=0,1,2 assignments in this dataset

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Additional Gamma Data:















E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityMixing
Ratio		Conversion
Coefficient		Additional Data
   387.5 (1/2-) 190 ms 15 
% IT = 100
   268.6 2 (E3) 0.1494B(E3)(W.u.)=0.117 10, α=0.1494 24
  2271.2 (17/2-) 1.14 ns 8     174.8 1 (E1) 0.0250B(E1)(W.u.)=3.4E-5 3, α=0.0250
(17/2-) 1.14 ns 8     262.8 1 (E2) 0.0380B(E2)(W.u.)=6.0 5, α=0.0380
  2454.5 (17/2-) 5.8 ps 11     183.5 1 [M1] 0.0481B(M1)(W.u.)=0.59 12, α=0.0481
  2583.7 (21/2+) 9.49 ns 21     168.0 1 (E2) 0.185B(E2)(W.u.)=7.7 3, α=0.185
(21/2+) 9.49 ns 21     487.3 1 (E2) B(E2)(W.u.)=0.0474 16
  3134.0 (23/2+) < 1.1 ps    550.3 1 [M1] B(M1)(W.u.)>0.12
  3151.1 (21/2-) 1.8 ps +6-10     696.8 1 [E2] B(E2)(W.u.)=3.1 13
(21/2-) 1.8 ps +6-10     879.8 1 (E2) B(E2)(W.u.)=24 9
  3558.4 (25/2+) < 1.0 ps    424.4 1 [M1] B(M1)(W.u.)>0.29
  3716.7 (25/2+) 0.8 ps 6     582.6 1 M1+E2-3.4 17B(E2)(W.u.)>200, B(M1)(W.u.)=0.007 +83-5
  4069.0 (25/2-) 2.8 ps +6-3     367.2 1 [M1] B(M1)(W.u.)=0.037 9
(25/2-) 2.8 ps +6-3     917.8 1 (E2) B(E2)(W.u.)=10.1 23
  4260.6 (27/2+) 0.28 ps +7-14     543.9 1 [M1] B(M1)(W.u.)=0.14 4
(27/2+) 0.28 ps +7-14     702.3 1 [M1] B(M1)(W.u.)=0.16 5
  4575.4 (27/2-) 0.69 ps +28-14     506.5 1 [M1] B(M1)(W.u.)=0.25 10
  4980.7 (29/2+) < 0.7 ps    331.6 1 [M1] 0.0105B(M1)(W.u.)>0.23, α=0.0105
(29/2+) < 0.7 ps    720.1 1 [M1] B(M1)(W.u.)>0.030
(29/2+) < 0.7 ps   1264.0 1 (E2) B(E2)(W.u.)>3.9
  5170.9 (29/2-) < 0.76 ps    595.5 1 [M1] B(M1)(W.u.)>0.11
(29/2-) < 0.76 ps   1101.9 1 [E2] B(E2)(W.u.)>4.1
  5251.0 (31/2+) 2.3 ps 8     270.3 1 [M1] 0.0176B(M1)(W.u.)=0.25 9, α=0.0176
(31/2+) 2.3 ps 8     601.9 1 [M1] B(M1)(W.u.)=0.009 4
(31/2+) 2.3 ps 8     990.4 2 [E2] B(E2)(W.u.)=3.2 12
  5420.0 (31/2-) < 0.7 ps    249.0 1 [M1] 0.0217B(M1)(W.u.)>1.3, α=0.0217
(31/2-) < 0.7 ps    844.9 2 (E2) B(E2)(W.u.)>27
E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityMixing
Ratio		Conversion
Coefficient		Additional Data
  5643.0 (33/2+) 0.55 ps 14     392.0 1 [M1] B(M1)(W.u.)=0.66 17
  6436.4 (35/2-) 2.6 ps 6    1016.4 1 [E2] B(E2)(W.u.)=8.5 20
  7590.1 (39/2-) 1.39 ps 14    1153.7 1 (E2) B(E2)(W.u.)=8.4 9

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.0(9/2+) 2.11 m 10 
% ε = 100
Configuration=νg9/2-1 + seniority=3 states (1993We04).
   387.5(1/2-) 190 ms 15 
% IT = 100
Configuration=νp1/2-1 + seniority=3 states (1993We04).
  2583.7(21/2+) 9.49 ns 21  μ=+8.3 4 (1995We12,2020StZV)
Configuration=40% πg9/228+~#νg9/2-1 + 21% πg9/226+~#νg9/2-1 + 15% πg9/228+~#νg9/2-37/2+ + 1% νg9/2-3 gives theoretical g=+0.79 (1995We12).
E(level): Configuration=40% πg9/228+~#νg9/2-1 + 21% πg9/226+~#νg9/2-1 + 15% πg9/228+~#νg9/2-37/2+ + 1% νg9/2-3 gives theoretical g=+0.79 (1995We12).
  5643.0(33/2+) 0.55 ps 14  T1/2(level): Effective T1/2 not corrected for feeding.
  7590.1(39/2-) 1.39 ps 14  T1/2(level): Effective T1/2 not corrected for feeding.

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Additional Gamma Comments:

E(level)E(gamma)Comments
   118.8   118.8E(γ): from (HI,xnγ)
   387.5   268.6E(γ): average of values from (HI,xnγ) and 89Mo IT decay
M(γ): α(K)exp=0.28 6 (1991He04) in 89Tc ε decay (12.9 s) gives δ(M4/E3)=0.39 12, but this admxiture of M4 gives unrealistically large B(M4)(W.u.). RUL=10 for B(M4)(W.u.) suggests negligible δ(M4/E3). Value of α(K)exp=0.28 6 (1991He04) agrees better with M3. Multipolarity assignment here is essentially from systematics supporting 1/2- for the isomer and dominant E3 multipolarity to 7/2+ level, and only marginally supported by large value of α(K)exp
  3134.0   550.3M(γ): Mult=dipole from γ(θ) and/or γγ(θ)(DCO)
  3558.4   424.4M(γ): Mult=dipole from γ(θ) and/or γγ(θ)(DCO)
  4069.0   367.2M(γ): Mult=dipole from γ(θ) and/or γγ(θ)(DCO)
  4260.6   702.3M(γ): Mult=dipole from γ(θ) and/or γγ(θ)(DCO)
  4575.4   506.5M(γ): Mult=dipole from γ(θ) and/or γγ(θ)(DCO)
  5170.9   595.5M(γ): Mult=dipole from γ(θ) and/or γγ(θ)(DCO)
  5251.0   270.3M(γ): Mult=dipole from γ(θ) and/or γγ(θ)(DCO)
  5420.0   249.0M(γ): Mult=dipole from γ(θ) and/or γγ(θ)(DCO)
  5643.0   392.0M(γ): Mult=dipole from γ(θ) and/or γγ(θ)(DCO)

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