利用铅、铋和锕系元素靶合成超重元素麦克（Z = 115）的研究

IF 2.6 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Physica Scripta Pub Date : 2024-09-18 DOI:10.1088/1402-4896/ad77fb

V Safoora, Tinu Ann Jose and K P Santhosh

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引用次数: 0

摘要

通过热核聚变反应 48Ca+241,243Am→289,291Mc、45Sc+240,242,244Pu→285,287,289Mc、50Ti+236,237Np→286,287Mc 合成超重元素 Mc（Z = 115）同位素的蒸发残余截面、51V+238U→289Mc、36S+253Es→289Mc、46K+248Cm→294Mc，以及冷核聚变反应 78As+208Pb→286Mc、76Ge+209Bi→285Mc 的产生截面现象学模型进行了系统研究。我们预测了在这些反应中合成麦克同位素最有效的射弹-靶组合。结果表明，48Ca+243Am→291Mc 反应的 3n- 通道截面较大，46K+248Cm→294Mc 反应的 4n- 通道截面较大。这项研究还考察了莫勒研究组和华沙研究组使用质量值和壳修正的影响。利用我们预测的组合和一系列激发能量下的截面值，我们希望在不久的将来的实验中能够合成这些镅同位素。

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A study on the synthesis of superheavy element Mc (Z = 115) using lead, bismuth and actinide targets

The evaporation residue cross sections in synthesizing isotopes of superheavy element Mc (Z = 115) by the hot fusion reactions 48Ca+241,243Am→289,291Mc, 45Sc+240,242,244Pu→285,287,289Mc, 50Ti+236,237Np→286,287Mc, 51V+238U→289Mc, 36S+253Es→289Mc, 46K+248Cm→294Mc, and by the cold fusion reactions 78As+208Pb→286Mc, 76Ge+209Bi→285Mc have been systematically investigated using the phenomenological model for production cross section. We have predicted the most effective projectile-target combinations for synthesizing Mc isotopes among these reactions. Our result shows that the 3n- channel cross section is larger for the reaction 48Ca+243Am→291Mc, and the 4n- channel cross section is larger for the reaction 46K+248Cm→294Mc. This study also examines the effect of the use of mass values and shell corrections by the Möller and Warsaw groups. Using our predicted combinations and the cross section values at a range of excitation energies, we hope these isotopes of Mc can be synthesized in near-future experiments.

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来源期刊

Physica Scripta 物理-物理：综合

CiteScore

3.70

自引率

3.40%

发文量

782

审稿时长

4.5 months

期刊介绍： Physica Scripta is an international journal for original research in any branch of experimental and theoretical physics. Articles will be considered in any of the following topics, and interdisciplinary topics involving physics are also welcomed: -Atomic, molecular and optical physics- Plasma physics- Condensed matter physics- Mathematical physics- Astrophysics- High energy physics- Nuclear physics- Nonlinear physics. The journal aims to increase the visibility and accessibility of research to the wider physical sciences community. Articles on topics of broad interest are encouraged and submissions in more specialist fields should endeavour to include reference to the wider context of their research in the introduction.