Perspectives of Synthesis of Some New Superheavy Nuclei

The only experimentally proved method of synthesis of superheavy elements (SHE) is the use of fusion reactions with heavy ions. Modeling of complicated dynamics of nuclear reactions induced by heavy ions is done within a multidimensional dynamical model of nucleus-nucleus collisions based on the Langevin equations. The model gives a continuous description of the system evolution starting from the well-separated target and projectile in the entrance channel of the reaction up to the formation of final reaction products. In this paper, we study fusion dynamics in competition with dominating channels of quasifission and deep inelastic transfer. The estimates have been made for cross sections for synthesis of new neutron-enriched isotopes of known SHE in pxn-evaporation channels as well as fusion cross section for reactions with Ti-50 and Cr-54 ions leading to yet unknown SHE with Z = 119 and 120.