The alpha decay chain properties of Z = 122 isotope in the mass range 298£ A £ 350, even-even nuclei, are studied using a fission-like model with an effective combination of the cubic plus proximity potential in the pre and post-scission regions, wherein the decay rates are calculated using improved transfer matrix method, and the results are in good agreement with other phenomenological formulae such as Universal decay law, Viola-Seaborg, Royer, etc. The nuclear ground-state masses are taken from WS4 mass model. The next minimum in the half-life curves of the decay chain obtained at N=186,178 & 164 suggest the shell closure at N=184, 176 & 162 which coincides well with the predictions of two-centre shell model approach. This study also unveils that the isotopes ^{298-300, 302, 304-306, 308-310, 312,314}122 show 7a, 5a, 4a, 3a, 2a and 1a decay chain, respectively. All the other isotopes from A = 316 to 350 may undergo spontaneous fission since the obtained SF half -lives are comparatively less. The predictions in the present study may have an impact in the experimental synthesis and detection of the new isotopes in near future.

中文翻译：

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Z = 122超重核的α衰变链的三次加邻近电势和改进的转移矩阵法

使用裂变模型研究了Z = 122同位素在质量范围298£A£350中甚至偶数原子核的α衰变链性质，并有效地结合了裂变前后的立方加邻近电势使用改进的传递矩阵法计算衰减率的区域，其结果与其他现象学公式（例如通用衰减定律，Viola-Seaborg，Royer等）非常吻合。核基态质量取自WS4质量模型。在N = 186,178和164处获得的衰变链半衰期曲线中的下一个最小值表明在N = 184、176和162处的壳闭合，这与两中心壳模型方法的预测非常吻合。这项研究还揭示了同位素^{298-300、302、304-306、308-310、312,314}图122分别示出了7a，5a，4a，3a，2a和1a衰减链。因为获得的SF半衰期相对较短，所以从A = 316到350的所有其他同位素都可能自发裂变。本研究中的预测可能会在不久的将来对新同位素的实验合成和检测产生影响。