Independent Verification of Element 114 Production in the ${}^{48}\mathrm{Ca}+{}^{242}\mathrm{Pu}$ Reaction

Independent verification of the production of element 114 in the reaction of 244-MeV ${}^{48}\mathrm{Ca}$ with ${}^{242}\mathrm{Pu}$ is presented. Two chains of time- and position-correlated decays have been assigned to ${}^{286}114$ and ${}^{287}114$. The observed decay modes, half-lives, and decay energies agree with published results. The measured cross sections at a center-of-target energy of 244 MeV for the ${}^{242}\mathrm{Pu}({}^{48}\mathrm{Ca},3–4n){}^{287,286}114$ reactions were ${1.4}_{-1.2}^{+3.2}\mathrm{pb}$ each, which are lower than the reported values.