# Cross-section prediction for isotopes near neutron drip line in 70, 80Zn projectile fragmentation reactions

• The cross sections for 59, 60Ca, recently measured in the 345 A MeV $^{70}{\rm{Zn}}+^{9}{\rm{Be}}$ reaction, were estimated using the FRACS parametrization and an empirical formula, which are in good agreement. The FRACS parametrization and the empirical formula are combined to predict the cross sections for extreme calcium isotopes $^{66, 70}{\rm{Ca}}$ in the $^{70, 80}{\rm{Zn}}+^{9}{\rm{Be}}$ reactions at the incident energies of 60, 80, and 345 A MeV. The dependence of emperical formula parameters on the reaction system, as well as the incident energy, are discussed. The results indicate that $^{66, 70}{\rm{Ca}}$ can be discovered in reactions of 60, 80 A MeV $^{80}{\rm{Zn}}+^{9}{\rm{Be}}$. The predicted binding energy for extreme neutron-rich isotopes by the spherical relativistic continuum Hartree-Bogoliubov theory was adopted in the calculation. Hence, the planned Beijing Isotope-Separation-On Line Neutron-Rich Beam Facility (BISOL), which is a third generation radioactive ion beam facility, could provide the opportunity to discover $^{66, 70}{\rm{Ca}}$ and neighboring neutron-drip line nuclei.
•  [1] O. B. Tarasov, D. S. Ahn, D. Bazin et al, Phys. Rev. Lett., 121: 022501 (2018) doi: 10.1103/PhysRevLett.121.022501 [2] L. Neufcourt, Y. Cao, W. Nazarewicz et al, Phys. Rev. Lett., 122: 062502 (2019) doi: 10.1103/PhysRevLett.122.062502 [3] H. Sakurai, Front. Phys., 13: 132111 (2018) doi: 10.1007/s11467-018-0849-0 [4] C.W. Ma, H.L. Wei, J.Y. Wang et al, Phys. Rev. C, 79: 034606 (2009) doi: 10.1103/PhysRevC.79.034606 [5] C.W. Ma and Y.G. Ma, Prog. Part. Nucl. Phys., 99: 120 (2018) doi: 10.1016/j.ppnp.2018.01.002 [6] B. Mei, Phys. Rev. C, 95: 034608 (2017) doi: 10.1103/PhysRevC.95.034608 [7] Y. D. Song, H. L. Wei, C. W. Ma et al, Nucl. Sci. Tech., 29: 96 (2018) doi: 10.1007/s41365-018-0439-4 [8] M. B. Tsang et al, Phys. Rev. C, 76: 041302(R) (2007) [9] C. W. Ma, Y. D. Song, and H. L. Wei, Sci. China-Phys. Mech. Astron., 62: 012013 (2019) doi: 10.1007/s11433-018-9256-8 [10] Y. D. Song, H. L. Wei, and C. W. Ma, Chin. Phys. C, 42: 074102 (2018) doi: 10.1088/1674-1137/42/7/074102 [11] K. Sümmerer, Phys. Rev. C, 87: 039903 (2013) [12] M. Mocko, M. B. Tsang, Z. Y. Sun et al, Europhys. Lett., 79: 12001 (2007) doi: 10.1209/0295-5075/79/12001 [13] Y. D. Song, H. L. Wei, and C. W. Ma, Phys. Rev. C, 98: 024620 (2018) doi: 10.1103/PhysRevC.98.024620 [14] M. Wang, G. Audi, F.G. Kondev et al, Chin. Phys. C, 41: 030003 (2017) doi: 10.1088/1674-1137/41/3/030003 [15] X. W. Xia, Y. Lim, P. W. Zhao et al, Atomic Data and Nuclear Data Tables, 121-122: 1 (2018) doi: 10.1016/j.adt.2017.09.001

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Hui-Ling Wei, Yi-Dan Song, Chun-Wang Ma, Zhi-Hong Li and Jun Su. Cross-section prediction for isotopes near neutron drip line in 70, 80Zn projectile fragmentation reactions[J]. Chinese Physics C, 2019, 43(7): 074103. doi: 10.1088/1674-1137/43/7/074103
Hui-Ling Wei, Yi-Dan Song, Chun-Wang Ma, Zhi-Hong Li and Jun Su. Cross-section prediction for isotopes near neutron drip line in 70, 80Zn projectile fragmentation reactions[J]. Chinese Physics C, 2019, 43(7): 074103.
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沈阳化工大学材料科学与工程学院 沈阳 110142

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## Cross-section prediction for isotopes near neutron drip line in 70, 80Zn projectile fragmentation reactions

###### Corresponding author: Chun-Wang Ma, machunwang@126.com
• 1. College of Physics, Henan Normal University, Xinxiang 453007, China
• 2. Institute of Particle and Nuclear Physics, Henan Normal University, Xinxiang 453007, China
• 3. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
• 4. Institute of Nuclear Physics, Chinese Institute of Atomic Energy, Beijing 102413, China
• 5. Institute of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China

Abstract: The cross sections for 59, 60Ca, recently measured in the 345 A MeV $^{70}{\rm{Zn}}+^{9}{\rm{Be}}$ reaction, were estimated using the FRACS parametrization and an empirical formula, which are in good agreement. The FRACS parametrization and the empirical formula are combined to predict the cross sections for extreme calcium isotopes $^{66, 70}{\rm{Ca}}$ in the $^{70, 80}{\rm{Zn}}+^{9}{\rm{Be}}$ reactions at the incident energies of 60, 80, and 345 A MeV. The dependence of emperical formula parameters on the reaction system, as well as the incident energy, are discussed. The results indicate that $^{66, 70}{\rm{Ca}}$ can be discovered in reactions of 60, 80 A MeV $^{80}{\rm{Zn}}+^{9}{\rm{Be}}$. The predicted binding energy for extreme neutron-rich isotopes by the spherical relativistic continuum Hartree-Bogoliubov theory was adopted in the calculation. Hence, the planned Beijing Isotope-Separation-On Line Neutron-Rich Beam Facility (BISOL), which is a third generation radioactive ion beam facility, could provide the opportunity to discover $^{66, 70}{\rm{Ca}}$ and neighboring neutron-drip line nuclei.

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