库仑壁垒附近 6Li + 94Zr 系统的聚变和单中子剥离过程*

IF 3.6 2区物理与天体物理 Q1 PHYSICS, NUCLEAR

中国物理C Pub Date : 2024-08-31 DOI:10.1088/1674-1137/ad50b9

Xuedou Su, 学斗苏, Guangxin Zhang, 广鑫张, Shipeng Hu, 世鹏胡, Peiwei Wen, 琣威温, H. O. Soler, Gaolong Zhang, 高龙张, Boshuai Cai, 博帅蔡, Cenxi Yuan, 岑溪袁, J. L. Ferreira, Zhenwei Jiao, 振威焦, Mingli Wang, 明李王, Xiaoyu Wang, 小雨汪, Zhen Huang, 珍黄, Huanqiao Zhang, 焕乔张, Chunlei Zhang, 春雷张, Xiaoguang Wu, 晓光吴, Yun Zheng, 云郑, Congbo Li, 聪博李, Tianxiao Li, 天晓李 and J. Lubian

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引用次数: 0

摘要

通过在线γ射线方法测量了6Li + 94Zr体系在库仑势垒附近能量下的完全和不完全聚变截面以及一中子剥离过程。与测量到的总聚变过程相比，6Li + 94Zr 系统的完全聚变截面不仅抑制了 30%，而且明显低于邻近的 6Li + 90, 96Zr 系统。新的实验结果表明，6Li-诱导聚变过程中与破裂通道的耦合可能会受到靶内部结构的影响，而这一点在现有的模型计算中还不清楚。对于一中子剥离过程，我们提取了 95Zr 中每个水平的直接产生截面，并将其与耦合反应通道计算进行了比较，从而为研究产生的激发态的单粒子性质提供了一个独特的机会。鉴于在比较中观察到 954-keV 和 1618-keV 水平的产生截面总体上被高估了，为了了解 6Li 诱导的一中子剥离过程的全部反应机制，我们亟需开展进一步的研究。

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Fusion and one-neutron stripping process for 6Li + 94Zr system around the Coulomb Barrier*

The complete and incomplete fusion cross section as well as one-neutron stripping process of 6Li + 94Zr system were measured at the energies around the Coulomb barrier by online γ-ray method. In addition to a 30% suppression factor when compared with the measured total fusion process, the complete fusion cross section in 6Li + 94Zr system was observed to be significantly lower than those in the nearby 6Li + 90, 96Zr system. The new experimental result implies that the coupling with breakup channel in the 6Li-induced fusion processes can be affected by the inner structure of the target, which is still not clear in any available model calculation. For the one-neutron stripping process, the direct production cross sections for each level in 95Zr were extracted and compared with the coupled reaction channel calculation, offering a unique opportunity to examine the single-particle nature of the produced excited states. Given the fact that an overall overestimation of the production cross section for 954-keV and 1618-keV levels was observed in the comparison, further investigation is highly demanded in order to understand the full reaction mechanism for the one-neutron stripping process induced by 6Li.

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来源期刊

中国物理C 物理-物理：核物理

CiteScore

6.50

自引率

8.30%

发文量

8976

审稿时长

1.3 months

期刊介绍： Chinese Physics C covers the latest developments and achievements in the theory, experiment and applications of: Particle physics; Nuclear physics; Particle and nuclear astrophysics; Cosmology; Accelerator physics. The journal publishes original research papers, letters and reviews. The Letters section covers short reports on the latest important scientific results, published as quickly as possible. Such breakthrough research articles are a high priority for publication. The Editorial Board is composed of about fifty distinguished physicists, who are responsible for the review of submitted papers and who ensure the scientific quality of the journal. The journal has been awarded the Chinese Academy of Sciences ‘Excellent Journal’ award multiple times, and is recognized as one of China''s top one hundred key scientific periodicals by the General Administration of News and Publications.