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Competition between alpha and heavy cluster decay in superheavy element 296Og
Indian Journal of Pure & Applied Physics ( IF 0.7 ) Pub Date : 2020-07-23
Tinu Ann Jose, K P Santhosh

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.

中文翻译:

超重元素296Og中alpha和重簇衰变之间的竞争

系统地研究了296 Og超重核及其发出α粒子和较重团簇的可能性,并使用了Q值依赖于成型因子的修正广义液滴模型(MGLDM)。检查所有可能的296 Og团簇发射的半衰期和分支比,仅考虑那些处于实验半衰期极限(小于10 30 s)和分支比极限(低至10 -19)内的团簇。其中,发现88 Kr是最可能的重星团,从而导致双倍魔力208Pb子核的半衰期可与α衰变半衰期相比。因此,这里强调了双魔幻子核在团簇衰变中的作用。同样,通过比较使用MGLDM的α衰变半衰期与Bao等人提出的自发裂变半衰期,还研究了296 Og的衰变模式,由此发现,对于296 Og的超重元素,它会衰减3条α链,随后发生自发裂变。我们希望这项研究对在不久的将来通过实验检测到这种排放物有所帮助。
更新日期:2020-07-28
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