ADOPTED LEVELS, GAMMAS for 78Y

Authors: Ameenah R. Farhan, Balraj Singh |  Citation: Nucl. Data Sheets 110, 1917 (2009) |  Cutoff date: 30-Jun-2009 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-1.12×104 keV SYS(n)= 1.38×104 keV SYS(p)= 2.0×103 keV SYQ(α)= -3.0×103 keV SY
Reference: 2012WA38

References:
  A  40Ca(40Ca,pnγ) 

General Comments:

1992Ye04: 58Ni(92Mo,X),E=70 MeV/nucleon; measured fragment mass, charge. A1200 beam analysis device. First evidence for 78Y isotope

1998Uu01: 40Ca(40Ca,pn), E=125 MeV. Measured β+, γ, (β+)γ(t)

2001Ki13, 2002Fa13, 2007WeZX: 112Sn ions, 1 GeV/α, on Be target, fragments isotopically separated. Si stack detectors.

2001Ga24, 1998Lo17 (also 1999Lo07): 92Mo+37, 60 MeV/α on Nickel target, fragments separated by LISE3 separator. Measured β+(t), Si strip detectors.

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

Q-value: ΔQ(β-)=640, ΔS(n)=410, ΔS(p)=ΔQ(α)=400 (syst,2009AuZZ,2003Au03)

Q-value: Q(εp)=5010 400, s(2n)=29970 640, s(2p)=6630 400 (syst,2009AuZZ, 2003Au03)








E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
Final Levels
    0A (0+) 53 ms 8 
% ε = 100
% εp = ?
   
  0+XA (5+) 5.8 s 6 
% ε = 100
% εp = ?
   
  281?A (2+)     281?
    0
(0+)
  787?A (4+)     506?
  281
(2+)

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Band Transitions:

E(level)
(keV)
Jπ(level) T1/2(level)E(γ)Final Levels
Band 1 - Possible t=1 g.s. band
    0 (0+) 53 ms 8 
% ε = 100
% εp = ?
   
  281 (2+)      
  787? (4+)     506?
  281
(2+)

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
    0(0+) 53 ms 8 
% ε = 100
% εp = ?
T=1
E(level): Tentative assignment based on identification as analog of 504 and 278 γ rays in 4+->2+->0+ g.s. band in 78Sr. Possible t=1 g.s. band.
  281(2+)   T=1
E(level): Tentative assignment based on identification as analog of 504 and 278 γ rays in 4+->2+->0+ g.s. band in 78Sr. Possible t=1 g.s. band.
Jπ(level): Possible t=1 g.s. band member corresponding to a similar band in 78Sr.
  787(4+)   T=1
E(level): Tentative assignment based on identification as analog of 504 and 278 γ rays in 4+->2+->0+ g.s. band in 78Sr. Possible t=1 g.s. band.
Jπ(level): Possible t=1 g.s. band member corresponding to a similar band in 78Sr.

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Additional Gamma Comments:

E(level)E(gamma)Comments
  281  281E(γ): strongest γ ray is correlated with positrons decaying with 47 ms 5 half-life (2007Na13). Tentative assignment based on identification as analog of 504 and 278 γ rays in 4+->2+->0+ g.s. band in 78Sr.
  787  506E(γ): Tentative assignment based on identification as analog of 504 and 278 γ rays in 4+->2+->0+ g.s. band in 78Sr.

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