Preference of heavy fragments as competing modes for alpha decay of 294Og

Abstract

Complete binary decay of [Formula: see text]Og formed in the heavy-ion fusion reaction is studied in the frame work of Yukawa-plus-exponential potential with a third-order polynomial potential for the overlapping region. Preformation probability, which is taken as the probability of penetration in the overlapping region, calculated for the use of reduced classical hydrodynamical mass, reveals the preference for near symmetric fission fragments [Formula: see text], [Formula: see text], in competency with alpha decay. Influence of the parameter [Formula: see text] of classical hydrodynamical mass is studied in preformation values. Half-life calculated for alpha decay matches well with experimental value for the use of reduced mass. Half-lives calculated for symmetric, near symmetric fragments [Formula: see text], [Formula: see text] are found to be low for the use of reduced hydrodynamical mass and promises preference of near symmetric fragments emission, as a competing decay mode to alpha decay and confirms the role of shell structure in deciding the most probable fragment.