Study of Cold Fusion Reactions Using Collective Clusterization Approach

查看全文 作　　者：Gurjit [1]Kaur;Kirandeep [1]Sandhu;Manoj [1]K.Sharma 机构地区：[1]School of Physics and Materials Science, Thapar University 出　　处：《Communications in Theoretical Physics》索引2017年第67卷第10期,共13页 基　　金：Supported by the Council of Scientific and Industrial Research(CSIR),in the Form of Research Project Grant No.03(1341)/15/EMR-Ⅱ and to DST,New Delhi;INSPIRE-Fellowship Grant No.DST/INSPIRE/03/2015/000199 摘　　要：Within the framework of the dynamical cluster decay model(DCM), the 1n evaporation cross-sections(σ_(1n)) of cold fusion reactions(Pb and Bi targets) are calculated for ZCN = 104–113 superheavy nuclei. The calculations are carried out in the fixed range of excitation energy E_(CN)~*= 15 ± 1 MeV, so that the comparative analysis of reaction dynamics can be worked out. First of all, the fission barriers(B_f) and neutron separation energies(S_(1n)) are estimated to account the decreasing cross-sections of cold fusion reactions. In addition to this, the importance of hot optimum orientations of β_(2i)-deformed nuclei over cold one is explored at fixed angular momentum and neck-length parameters.The hot optimum orientations support all the target-projectile(t,p) combinations, which are explored experimentally in the cold fusion reactions. Some new target-projectile combinations are also predicted for future exploration. Further,the 1n cross-sections are addressed for Z_(CN) = 104–113 superheavy nuclei at comparable excitation energies which show the decent agrement with experimental data upto Z_(CN) = 109 nuclei. Finally, to understand the dynamics of higher-Z superheavy nuclei, the cross-sections are also calculated at maximum available energies around the Coulomb barrier and the effect of non-sticking moment of inertia(INS) is also investigated at these energies. 关 键 词：冷聚变反应 集群化 反应动力学 激发能量 集体 横截面 超重核 模型框架