Spontaneous fission half lives of Z=112 isotopes

Barriers and spontaneous fission half lives of superheavy isotopes of Z = 112 (N = 150-190) nucleus are calculated using state dependent delta-pairing and both BCS or Lipkin-Nogami (LN) approach. Four different models of macroscopic part of Strutinsky energy are probed. Results for different macroscopic models combined with delta+LN approach give the half lives well compared to experimental data. The calculations are performed in three dimensional space of deformation parameters beta = {beta(2), beta(4), beta(6)}. The probability of spontaneous fission has been obtained by dynamical action minimization method.