Alpha decay Q-value of superheavy nuclei

The prediction of the existence of superheavy nucleus (SHN) in 1960s, created an enthusiasm in synthesis and identification of SHN, worldwide. A number of theories have been applied to predict the most stable nucleus in the superheavy region. But the location of the closed shell in the island of stability is still uncertain. Beyond the closed spherical shells at Z=82 and N=126, deformed shell closures at Z=108 and N=162 has been identified, but the next spherical shell closure is still open and different theoretical approaches predicted different spherical shell closures, depending on the model employed. In this work we carry out the Q-value calculations with a correction factor in the mass formula to coincide with the experimental Q-values, and hence the half-life is calculated for the nuclei in the SHN region