Production cross-sections of new superheavy elements with Z = 119-120 in fusion-evaporation reactions
Abstract
We have calculated production cross sections of new superheavy elements with atomic number Z=119,120 in the fusion-evaporation reactions of 48Ca+252Es, 48Ca+257Fm, 49Sc+252Es, 49Sc+251Cf, 50Ti+247Bk, 50Ti+251Cf, 51V+247Cm, 51V+247Cf, 54Cr+243Am, 54Cr+247Cm, 56Mn+244Pu, 56Mn+243Am, 60Fe+237Np, 60Fe+244Pu, 61Co+238U, 61Co+237Np, 64Ni+231Pa, 64Ni+238U, 65Cu+232Th, 65Cu+231Pa, and 68Zn+232Th within the dinuclear system model systematically. The inner fusion barriers have been extracted from the driving potential or potential energy surface which could be used to predict the relative fusion probability roughly. The influence of mass asymmetry of the colliding partners on the production of new superheavy elements (SHE) has been investigated systematically. It is found that fusion probability increase along with the increasing mass asymmetry of colliding systems. The Ti-induced reactions have the largest cross-sections of the new SHE. The dependence of production cross-sections of new superheavy elements on the isospin of projectile nuclei has been discussed. The new SHE of 289-295119 has been predicted as the synthesis cross sections around serval picobarns in the 46,48,50,52Ti-induced reactions. Production cross-section of the element of 295120 has been evaluated as large as 1 picobarn in the reactions 46Ti (251Cf, 2n) 295120 at E* = 26 MeV. The optimal projectile-target combinations and beam energies for producing new SHE with atomic number Z=119-120 are proposed for the forthcoming experiments.
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.