Possibilities for synthesis of new transfermium isotopes in multinucleon transfer reactions

Multinucleon transfer mechanisms near barrier collisions between very heavy nuclei are investigated in the framework of the improved dinuclear system model by considering the influence of orientation effects combined with statistical model code GEMINI++. Several transfer reactions for different actinide targets (U-238, Cm-248, and Cf-249) are studied in detail. One notices that the isotopic distributions of the above-target products decrease drastically by a factor of 10 per proton, which is moved from projectile to target. However, the calculated and measured results show that the larger production cross sections above targetlike fragments can be produced by using the heaviest available target. The predicted cross sections and excitation functions of the new transfermium isotopes may be useful for future experiments.

Automated summary

Investigations on multinucleon transfer mechanisms near barrier collisions between very heavy nuclei were conducted within the framework of the improved dinuclear system model, taking into account the influence of orientation effects and the statistical model code GEMINI++. Transfer reactions for different actinide targets were studied in detail, showing significant changes in isotopic distributions of the products. The results suggest that larger production cross sections of targetlike fragments can be achieved with the heaviest available target.