Quasifission barrier of heavy ion fusion reactions leading to the formation of the superheavy nucleus <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mn>120</mml:mn><mml:mprescripts/><mml:none/><mml:mn>302</mml:mn></mml:mmultiscripts></mml:math>
P. S. Damodara Gupta, N. Sowmya, H.C. Manjunatha, L. Seenappa, T. Ganesh
Abstract
We study the quasifission barriers of different fusion reactions leading to synthesis of the superheavy element $Z=120$ using the dinuclear system approach. In particular, the influence of the projectile-target orientation and angular momentum on quasifission barriers has been investigated. The quasifission barrier height is observed to be maximum when the angle of orientation of projectile-target is about ${90}^{\ensuremath{\circ}}$ (tip-tip orientation). The role of entrance channel effects on quasifission barriers is investigated, and also suggested are suitable empirical formulas for the same. The striking results leading to larger quasifission barriers, whose cross sections are $>10$ fb, are also mentioned. As a result, the current research might be valuable in developing corrective techniques for future experimental attempts to synthesize superheavy nuclei with $Z=120$.