ADOPTED LEVELS, GAMMAS for 62Mn

Authors: Balraj Singh, Huang Xiaolong, and Wang Xianghan |  Citation: Nucl. Data Sheets 204, 1 (2025) |  Cutoff date: 30-Jun-2023 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=10354 keV 7S(n)= 4853 keV 7S(p)= 13316 keV 7Q(α)= -1052×101 keV 10
Reference: 2021WA16

References:
  A  62Cr β- decay (200 MS)  B  NI(86Kr,X)
  C  238U(64Ni,xγ)  D  238U(70Zn,xγ)
  E  Coulomb Excitation 

General Comments:

1983Ru06: 62Mn identified in W(76Ge,X) at 9 MeV/nucleon; mass separation. Assignment based on the agreement between the energy of the most intense 877-keV γ transition and the energy of the first excited level of 62Fe measured in the 64Ni(14C,16O) and (18O,20Ne) reactions, and the decay of the 877-keV γ and β- rays

Mass measurements: 2012Na15, 2012He13

Hyperfine structure studies: 2016He14, 2015He28 (also 2015He10)

Theoretical structure calculations:

2013Ji04: calculated levels, Jπ, bands, configurations, B(M1), B(E2), moments of inertia, neutron occupation numbers using large-scale shell model; discussed neutron g9/2 excitations.

2012Su07: calculated levels, Jπ, bands, configurations, and moments of inertia using projected shell model and Nilsson model.

2010Sr03: calculated levels, Jπ using large-scale shell model with GXPF1A and KB3G effective interactions; deduced wave functions.

Other theoretical calculations: seven references retrieved from the NSR database are listed in this dataset as ’document’ records.

Q-value: S(2n)=11699 7, S(2p)=30010 180, Q(β-n)=2325 7 (2021Wa16)









E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)Final Levels
     0.0A   E 1+ 92 ms 13 
% β- = 100
% β-n = ?
    
   285.0 17 A     (0+)      285 2 
  100
     0.0
1+
   343 4  BCDE 4+ 671 ms 5 
% β- = 100
% β-n = ?
    
   418 2     E (2+,3+)      418 2 
  100
     0.0
1+
   459.0 3  BCD  (4) 95 ns 2 
% IT ≈ 100
   113.8 3 
  100
   343
4+
   568.0 5   CD  (5)      108.6 3 
  100
   459.0
(4)
   640.0 17 A     (1+)      355 2 
   640 2 
  100
   68
   285.0
     0.0
(0+)
1+
   764 5   CD  (6)      195.8 2 
  100
   568.0
(5)
   988.8 6   CD  (7)      224.6 3 
  100
   764
(6)
  1500 3 ?A         1215 2 ?
  100
   285.0
(0+)
  1530.7 12   CD  (8)      540.9 10 
  100
   988.8
(7)

E(level): From γ-ray studies when possible, except as noted.

Jπ(level): From systematics of even-A Mn nuclei and decay pattern. See also discussion in 2010Ch51

E(γ): From 238U(70Zn,Xγ), except as noted.

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Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)Final Levels
Band 1 - Band based on (4).
   459.0 3  (4) 95 ns 2 
% IT ≈ 100
    
   568.0 5  (5)      108.6 3 
  100
   459.0
(4)
   764 5  (6)       
   988.8 6  (7)      224.6 3 
  100
   764
(6)
  1530.7 12  (8)      540.9 10 
  100
   988.8
(7)

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.01+ 92 ms 13 
% β- = 100
% β-n = ?
μ=+2.384 7 (2015He28,2019StZV), Q=+0.1 2 (2015He28,2021StZZ)
Theoretical T1/2(β)=1.36 s, %β-n=0.016, 0.0 (2021Mi17, two values for a decay mode refer to different fission barriers).
E(level): Theoretical T1/2(β)=1.36 s, %β-n=0.016, 0.0 (2021Mi17, two values for a decay mode refer to different fission barriers).
   3434+ 671 ms 5 
% β- = 100
% β-n = ?
μ=+3.170 3 (2015He28,2019StZV), Q=+0.59 13 (2015He28,2021StZZ)
δ<r2>(55Mn,62mMn)=+0.640 fm2 9(stat) 61(syst) (2016He14, deduced from isotope shifts for atomic transition).
   459.0(4) 95 ns 2 
% IT ≈ 100
E(level): Band based on (4).
   568.0(5)   E(level): Band based on (4).
   764(6)   E(level): Band based on (4).
   988.8(7)   E(level): Band based on (4).
  1500   In level-scheme Fig. 9 of 2015Ga38, Jπ=(1+) is assigned for this level, but as the existence of this level remains uncertain, no assignment is recommended here.
  1530.7(8)   E(level): Band based on (4).

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Additional Gamma Comments:

E(level)E(gamma)Comments
   285.0   285E(γ): From 62Cr β- decay
   418   418E(γ): from Coulomb excitation.
   640.0   355E(γ): From 62Cr β- decay
   640E(γ): From 62Cr β- decay
  1500  1215E(γ): From 62Cr β- decay

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