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Fusion and one-neutron stripping process for ^(6)Li+^(94)Zr system around the Coulomb Barrier
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作者 Xuedou Su Guangxin Zhang +16 位作者 Shipeng Hu Peiwei Wen H.O.Soler Gaolong Zhang Boshuai Cai Cenxi Yuan J.L.Ferreira Zhenwei Jiao Mingli Wang Xiaoyu Wang Zhen Huang Huanqiao Zhang Chunlei Zhang Xiaoguang Wu Yun Zheng Congbo Li Tianxiao Liand J.Lubian 《Chinese Physics C》 SCIE CAS CSCD 2024年第9期133-141,共9页
The complete and incomplete fusion cross section as well as one-neutron stripping process of ^(6)Li+^(94)Zr system were measured at the energies around the Coulomb barrier by onlineγ-ray method.In addition to a 30%su... The complete and incomplete fusion cross section as well as one-neutron stripping process of ^(6)Li+^(94)Zr system were measured at the energies around the Coulomb barrier by onlineγ-ray method.In addition to a 30%suppression factor when compared with the measured total fusion process,the complete fusion cross section in ^(6)Li+^(94)Zr system was observed to be significantly lower than those in the nearby ^(6)Li+^(90,96)Zr system.The new experimental result implies that the coupling with breakup channel in the ^(6)Li-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 and1618-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 ^(6)Li. 展开更多
关键词 weakly bound nuclei complete fusion incomplete fusion transfer reaction
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轻质量原子核中子发射的衰变宽度理论描述
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作者 蔡博帅 袁岑溪 《科学通报》 EI CAS CSCD 北大核心 2022年第23期2782-2789,共8页
本文尝试提出描述轻质量原子核中子发射衰变宽度的理论公式.使用Wentzel-Kramers-Brillouin(WKB)近似和R-matrix方法计算了单中子发射的衰变宽度.通过WKB近似和R-matrix方法的隧穿因子,得到描述单中子发射宽度一般规律的三变量公式,使... 本文尝试提出描述轻质量原子核中子发射衰变宽度的理论公式.使用Wentzel-Kramers-Brillouin(WKB)近似和R-matrix方法计算了单中子发射的衰变宽度.通过WKB近似和R-matrix方法的隧穿因子,得到描述单中子发射宽度一般规律的三变量公式,使用该公式计算的结果与实验值的均方根误差小于0.6个数量级.研究结果有助于进一步研究中子滴线附近丰中子核的性质. 展开更多
关键词 单中子发射 衰变宽度 WKB近似 R-matrix方法 唯象公式
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Shell-model study on properties of proton dripline nuclides with Z,N=30-50 including uncertainty analysis 被引量:2
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作者 Bo-Shuai Cai Guang-Shang Chen +1 位作者 Cen-Xi Yuan Jian-Jun He 《Chinese Physics C》 SCIE CAS CSCD 2022年第8期196-210,共15页
The binding and proton separation energies of nuclides with Z,N=30-50 are investigated based on the shell model,with an uncertainty analysis via statistical methods.Several formulas are used to obtain the binding and ... The binding and proton separation energies of nuclides with Z,N=30-50 are investigated based on the shell model,with an uncertainty analysis via statistical methods.Several formulas are used to obtain the binding and proton separation energies according to shell-model calculations.The non-parametric bootstrap method is applied to establish an uncertainty decomposition and recomposition framework.Moreover,this is used to estimate the stability of proton(s) emission for each nuclide.Two formulas for calculating the binding energies with a systematic uncertainty of~0.3 Me V are proposed,and a reliable extrapolation ability is examined.These binding energy formulas deduce similar forms for their respective S_(p) and S_(2 p) energies,which predict the extension of the nuclear boundary of this region.A good description of the binding and proton separation energies is provided.The one-and twoproton separation energies and partial half-lives of proton emission are predicted,thus revealing a new dripline.Furthermore,there are 30 unstable nuclides predicted to be bound against proton(s)-emission.These nuclear properties will be useful in nuclear astrophysics. 展开更多
关键词 shell model proton dripline uncertainty analysis
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