Competition between alpha and heavy cluster decay in superheavy element 296Og

Indian Journal of Pure & Applied Physics

article

Tinu Ann Jose¹  K P Santhosh¹ 

[1] School of Pure and Applied Physics, Kannur University, Swami Anandatheertha Campus

关键词: Alpha decay;    Spontaneous fission;    Superheavy element;    Article;   

来源: National Institute of Science Communication and Information Resources

【 摘 要 】

Systematic study of superheavy nuclei 296Og and its possibilities to emit alpha particle and heavier clusters are studied using Modified Generalized Liquid Drop Model (MGLDM) with Q value dependent preformation factor. Half-lives and branching ratio of all possible cluster emission of 296Og is checked and only those cluster which are within the experimental half-lives limit (less than 1030s) and branching ratio limit (down to 10-19) are considered. Among this, 88Kr is found to be the most probable heavy cluster, leading to doubly magic 208Pb daughter nuclei, with half-lives comparable with alpha decay half-lives. Thus the role of doubly magic daughter nuclei in cluster decay is highlighted here. Again the decay modes of 296Og are also studied by comparing alpha decay half-lives using MGLDM with spontaneous fission half-lives proposed by Bao et al., and from this, it is found that for superheavy element 296Og, decays by 3 alpha chains followed by spontaneous fission. We hope that this study would help when this emission is experimentally detected in near future.

【 授权许可】

Unknown