Abstract
The fusion excitation functions of $^{249\ensuremath{-}263}\mathrm{No}$ are studied by using various reaction systems based on the dinuclear system model. The neutron-rich radioactive beam $^{22}\mathrm{O}$ is used to produce neutron-rich nobelium isotopes, and the new neutron-rich isotopes $^{261\ensuremath{-}263}\mathrm{No}$ are synthesized by $^{242}\mathrm{Pu}(^{22}\mathrm{O},3n)^{261}\mathrm{No}, ^{244}\mathrm{Pu}(^{22}\mathrm{O},4n)^{262}\mathrm{No}$, and $^{244}\mathrm{Pu}(^{22}\mathrm{O},3n)^{263}\mathrm{No}$ reactions, respectively. The corresponding maximum evaporation residue cross sections are 0.628, 4.649, and 1.638 $\ensuremath{\mu}\mathrm{b}$, respectively. The effects of the three processes (capture, fusion, and survival) in the complete fusion reaction are also analyzed. From investigation, a neutron-rich radioactive beam as the projectile and neutron-rich actinide as the target could be a new selection of the projectile-target combination to produce a neutron-rich heavy nuclide.
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