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Title: Competition between alpha and heavy cluster decay in superheavy element 296Og
Authors: Jose, Tinu Ann
Santhosh, K P
Keywords: Alpha decay;Spontaneous fission;Superheavy element
Issue Date: May-2020
Publisher: NISCAIR-CSIR, India
Abstract: 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.
Page(s): 415-417
ISSN: 0975-0959 (Online); 0301-1208 (Print)
Appears in Collections:IJPAP Vol.58(05) [May 2020]

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