Expected production of new exotic $\alpha$ emitters ${}^{108}\mathrm{Xe}$ and ${}^{112}\mathrm{Ba}$ in complete fusion reactions

The production cross sections of neutron-deficient isotopes ${}^{108–110}\mathrm{Xe}$ and ${}^{112–114}\mathrm{Ba}$ in the complete fusion reactions ${}^{58,56}\mathrm{Ni}+{}^{54}\mathrm{Fe}$ and ${}^{58,56}\mathrm{Ni}+{}^{58}\mathrm{Ni}$ with stable and radioactive beams are studied with the dinuclear system model. The calculated results are compared with the available experimental data. The optimal beam energies and corresponding maximum production cross sections of new isotopes ${}^{108}\mathrm{Xe}$ and ${}^{112}\mathrm{Ba}$ are predicted.

Figure 1

Dependence of the excitation energy of the CN formed in the ${}^{58}\mathrm{Ni}+{}^{54}\mathrm{Fe}$ reaction at 5.0 MeV/nucleon on the angular momentum $J$.

Figure 2

Calculated excitation functions (open symbols connected by lines) for the production of isotopes ${}^{108–110}\mathrm{Xe}$ in the reactions ${}^{58,56}\mathrm{Ni}+{}^{54}\mathrm{Fe}$ are compared to the available experimental data (solid symbols) from Ref. [30].

Figure 3

Calculated excitation functions (symbols connected by lines) for the production of isotopes ${}^{108–110}\mathrm{Xe}$ in the reactions ${}^{58,56}\mathrm{Ni}+{}^{58}\mathrm{Ni}$.

Figure 4

Calculated excitation functions (symbols connected by lines) for the production of isotopes ${}^{112–114}\mathrm{Ba}$ in the reactions ${}^{58,56}\mathrm{Ni}+{}^{58}\mathrm{Ni}$.