Predictions for the synthesis of superheavy elements Z=119 and 120

被引：47

作者：

Li, Fan ^{[1
]}

Zhu, Long ^{[1
]}

Wu, Zhi-Han ^{[1
]}

Yu, Xiao-Bin ^{[1
]}

Su, Jun ^{[1
]}

Guo, Chen-Chen ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Sinofrench Inst Nucl Engn & Technol, Zhuhai 519082, Peoples R China

来源：

PHYSICAL REVIEW C | 2018年 / 98卷 / 01期

基金：

中国国家自然科学基金;

关键词：

HEAVY-ION COLLISIONS; DINUCLEAR SYSTEM; CROSS-SECTIONS; NUCLEAR-REACTIONS; COMPLETE FUSION; MASSIVE NUCLEI; QUASI-FISSION; BARRIER; COMPETITION; MODEL;

D O I：

10.1103/PhysRevC.98.014618

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Within the framework of dinuclear system model, the synthesis of the superheavy elements (SHEs) Z = 119 and Z = 120 is investigated. The entrance channel effects on capture cross section, fusion probability, survival probability, and evaporation residue cross section are investigated. We calculate the production cross sections in 276 possible reactions (with stable projectiles of Z = 20-30 and targets with the half-lives longer than 20 days) and show the promising ones for the synthesizing SHEs Z = 119 and Z = 120. It is found that the systems Ca-44 + Es-252 and Ca-40 + Fm-252 are the most favorable to produce the SHEs Z = 119 and Z = 120 with maximal production cross sections (optimal incident energies) of 4.32 pb (204.27 MeV) and 1.24 pb (205.66 MeV), respectively.

引用

页数：9

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