ADOPTED LEVELS, GAMMAS for 7Be

Authors: Hu, Tilley, Kelley, Godwin Et Al. |  Citation: Nucl. Physics A708, 3 (2002) |  Cutoff date: 23-Aug-2001 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-1.191×104 keV 3S(n)= 10677 keV 6S(p)= 5606.85 keV 7Q(α)= -1587.13 keV 7
Reference: 2012WA38

References:
  A  4He(3He,3He),(3He,p)  B  6Li(p,p),(p,2p),(p,pα)
  C  6Li(d,n)  D  6Li(3He,d)
  E  6Li(α,t)  F  7Li(p,n)
  G  7Li(3He,t)  H  7Li(6Li,6He)
  I  9Be(p,t)  J  10B(p,α)






E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
M(γ)
      0.0  CDEFGHIJ 3/2- 53.22 d 6 
% ε = 100
  
    429.08 10   CDEFGHIJ 1/2- 133 fs 17    429.07
M1
   4570 50 A  DEFGHIJ 7/2- 175 keV 7 
% 3HE = ?
% α = ?
  
      6.73E+3 10 A C  F  I  5/2- 1.2 MeV
% 3HE = ?
% α = ?
  
   7210 60 ABC  F H   5/2- 0.40 MeV 5 
% p = ?
% 3HE = ?
% α = ?
  
      9.27E+3 10 A          7/2- % p = ?
% 3HE = ?
% α = ?
  
   9900AB         3/2- ≈ 1.8 MeV
% p = ?
% 3HE = ?
% α = ?
  
  11010 30 AB   F  I  3/2- 320 keV 30 
% p = ?
% 3HE = ?
% α = ?
  
  17000A          1/2- ≈ 6.5 MeV
% 3HE = ?
  

E(γ): From E(level) difference; recoil correction applied.

Back to top

Back to top

Additional Gamma Data:











E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityAdditional Data
    429.08 1/2- 133 fs 17    429.07M1B(M1)(W.u.)=2.07 27

Back to top

Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
      0.03/2- 53.22 d 6 
% ε = 100
T=1/2
Excluding the much larger changes reported by 1999Hu20 and 1999Ra12, these measured changes range from 0.01% to 0.2%, or from 0.005 to 0.10 days, or 0.08 day if the organic compounds are also omitted.
E(level): Excluding the much larger changes reported by 1999Hu20 and 1999Ra12, these measured changes range from 0.01% to 0.2%, or from 0.005 to 0.10 days, or 0.08 day if the organic compounds are also omitted.

Back to top