Probing the fusion of neutron-rich nuclei with re-accelerated radioactive beams

Probing the fusion of neutron-rich nuclei with re-accelerated radioactive beams
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用再加速放射性束探测富中子核的聚变

DOI：
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发表时间：
2017
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通讯作者：
K. Brown
K. Brown
中科院分区：
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文献类型：
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作者：
J. Vadas;Varinderjit Singh;B. Wiggins;J. Huston;S. Hudan;R. deSouza;Zidu Lin;C. Horowitz;A. Chbihi;D. Ackermann;M. Famiano;K. Brown

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我们首次测量了K+Si在近势垒能下的熔合激发函数。聚变过程中产生的蒸发残留物通过直接测量其能量和飞行时间来识别，具有很高的几何效率。在最低入射能量下，测得的丰中子反应截面比稳定体系的截面大约6倍。实验数据与动力变形模型和耦合通道计算(CCFULL)进行了比较。
We report the first measurement of the fusion excitation functions for $^{39,47}$K + $^{28}$Si at near-barrier energies. Evaporation residues resulting from the fusion process were identified by direct measurement of their energy and time-of-flight with high geometric efficiency. At the lowest incident energy, the cross-section measured for the neutron-rich $^{47}$K induced reaction is ~6 times larger than that of the $eta$-stable system. The experimental data are compared with both a dynamical deformation model and coupled channels calculations (CCFULL).