Chinese Physics C > 2017, Vol. 41 > Issue(9): 094001 DOI: 10.1088/1674-1137/41/9/094001

Experimental determination of one-and two-neutron separation energies for neutron-rich copper isotopes

1.
Institute of Particle and Nuclear Physics, Henan Normal University, Xinxiang 453007, China
2.
School of Biomedical Engineering, Xinxiang Medical University, Xinxiang 453003, China
3.
Institute of Particle and Nuclear Physics, Henan Normal University, Xinxiang 453007, China
4.
Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China

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Abstract：
A method is proposed to determine the one-neutron S _nor two-neutron S _2nseparation energy of neutron-rich isotopes. Relationships between S _n( S _2n) and isotopic cross sections have been deduced from an empirical formula, i.e., the cross section of an isotope exponentially depends on the average binding energy per nucleon B/A. The proposed relationships have been verified using the neutron-rich copper isotopes measured in the 64A MeV ⁸⁶Kr + ⁹Be reaction. S _n, S _2n, and B/Afor the very neutron-rich ^{77, 78, 79}Cu isotopes are determined from the proposed correlations. It is also proposed that the correlations between S _n, S _2nand isotopic cross sections can be used to find the location of neutron drip line isotopes.
- neutron separation energy,
- neutron-drip line,
- neutron-rich isotope

References

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Mian Yu, Hui-Ling Wei, Yi-Dan Song and Chun-Wang Ma. Experimental determination of one-and two-neutron separation energies for neutron-rich copper isotopes[J]. Chinese Physics C, 2017, 41(9): 094001. doi: 10.1088/1674-1137/41/9/094001

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Received: 2017-05-27

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Supported by Program for Science and Technology Innovation Talents at Universities of Henan Province (13HASTIT046), Natural and Science Foundation in Henan Province (162300410179), Program for the Excellent Youth at Henan Normal University (154100510007) and Y-D Song thanks the support from the Creative Experimental Project of National Undergraduate Students (CEPNU 201510476017)

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Experimental determination of one-and two-neutron separation energies for neutron-rich copper isotopes

Corresponding author:Chun-Wang Ma,

1. Institute of Particle and Nuclear Physics, Henan Normal University, Xinxiang 453007, China
2. School of Biomedical Engineering, Xinxiang Medical University, Xinxiang 453003, China
3. Institute of Particle and Nuclear Physics, Henan Normal University, Xinxiang 453007, China
4. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China

Received Date:2017-05-27
Available Online:2017-09-05

Fund Project:Supported by Program for Science and Technology Innovation Talents at Universities of Henan Province (13HASTIT046), Natural and Science Foundation in Henan Province (162300410179), Program for the Excellent Youth at Henan Normal University (154100510007) and Y-D Song thanks the support from the Creative Experimental Project of National Undergraduate Students (CEPNU 201510476017)

Abstract:A method is proposed to determine the one-neutronS_nor two-neutronS_2nseparation energy of neutron-rich isotopes. Relationships betweenS_n(S_2n) and isotopic cross sections have been deduced from an empirical formula, i.e., the cross section of an isotope exponentially depends on the average binding energy per nucleonB/A. The proposed relationships have been verified using the neutron-rich copper isotopes measured in the 64A MeV⁸⁶Kr +⁹Be reaction.S_n,S_2n, andB/Afor the very neutron-rich^{77, 78, 79}Cu isotopes are determined from the proposed correlations. It is also proposed that the correlations betweenS_n,S_2nand isotopic cross sections can be used to find the location of neutron drip line isotopes.