Author: N. Nica |  Citation: Nucl. Data Sheets 117, 1 (2014) |  Cutoff date: 1-Oct-2013 

 Full ENSDF file | Adopted Levels (PDF version) 

Q(β-)=8300 keV SYS(n)= 4470 keV SY
Reference: 2012WA38

General Comments:

2010Oh02: 148Xe nuclide identified in Be(238U,F) and Pb(238U,F) reactions with a 238U86+ beam energy of 345 MeV/nucleon produced by the cascade operation of the RBIF accelerator complex of the linear accelerator RILAC and four cyclotrons RRC, fRC, IRC and SRC. Identification of 148Xe nuclei was made on the basis of magnetic rigidity, time-of-flight and energy loss of the fragments using BigRIPS fragment separator. Experiments performed at RIKEN facility.

Based on α/Q spectrum and Z versus α/Q plot (Q=charge state), one count was assigned to 148Xe isotope.

Structure calculations:

1984Na22: calculated equilibrium shapes

1986Au02: calculated two-neutron separation energies

1988So08: calculated equilibrium deformation, energy.

1988Ha24: calculated atomic masses

1992Na07: calculated equilibrium deformation as function of rotational frequency, shape change features

1994Ma02: calculated levels, energy splitting, transition probabilities

Q-value: Uncertainties based on syst: ΔQ(β-)=610, ΔS(p)=280 (2012Wa38)

Q-value: Q(β-n)=4950 200 (2012Wa38,syst)

Jπ(level) T1/2(level)
  0 0+ > 0.4 µs
% β- = ?
% β-n = ?

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Additional Level Data and Comments:

  00+ > 0.4 µs
% β- = ?
% β-n = ?
Calculated %β-n=11.0 (1997Mo25); 9.6 (2002Pf04).

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