Synthesis of 119292−303 superheavy elements using Ca- and Ti-induced reactions

Abstract

The synthesis of superheavy element $Z=119$ in the fusion evaporation reactions $^{42,44,46,48}\mathrm{Ca}+^{252\ensuremath{-}255}\mathrm{Es}$ and $^{46\ensuremath{-}50}\mathrm{Ti}+^{246\ensuremath{-}249}\mathrm{Bk}$ in the $3n$-, $4n$-, and $5n$-channels leading to $^{294\ensuremath{-}303}119$ and $^{292\ensuremath{-}299}119$, respectively, is evaluated. It is observed that the $3n$-channel (952.173 fb) cross section is larger for the reaction $^{48}\mathrm{Ca}+^{252}\mathrm{Es}\ensuremath{\rightarrow}^{300}119$; the $4n$- (155.026 fb) and $5n$- (23.11 fb) channel cross sections are larger for $^{48}\mathrm{Ca}+^{254}\mathrm{Es}\ensuremath{\rightarrow}^{302}119$. For the reaction $^{50}\mathrm{Ti}+^{249}\mathrm{Bk}\ensuremath{\rightarrow}^{299}119$, the experimental upper limit of the cross section was about 50 fb, which is very close to our calculated value (40.86 fb for the $4n$-channel). Also, the isotopic dependence of both projectile and target for the production cross section is discussed. These studies will be useful for the experimentalists to produce isotopes of element $Z=119$.