Capture and fission analysis of various superheavy isotopes with ACN =258-280

• 来源期刊: 理论物理通讯（英文版）
• 年，卷（期）: 2020,（2）
• 页码范围: 63-72
• 页数: 10页
• 语种: 英文

摘要

The capture and fission analysis of heavy ion induced fusion reactions leading to the formation of Z=107-111 superheavy nuclei has been carried out.Attempts have been made to analyze the synthesis traits,such as excitation functions,formation probabilities,barrier characteristics etc.The e-summed Wong model provides a decent description of available data on capture (σCap) and fusion-fission (σff) cross-sections and hence is exploited to make relevant predictions for future experiments.The capture and fusion-fission excitation functions are predicted for the least explored region of superheavy nuclei (SHN) i.e.Z =107-111.The role of mass-asymmetry (η),Coulomb factor (ZpZT),deformation and orientations,Businari-Gallone mass-asymmetry (αBG),fission barrier (By) etc is duly explored.The present study concludes that the mass-asymmetric reactions involving 24Mg,30Si,and 36S projectiles are preferred for the synthesis of unknown isotopes of Z =107-111.Alternatively,the doubly magic 48Ca-projectile also provides a competing alternative to produce neutron-rich isotopes of the abovementioned SHN.