Formation of superheavy elements and ternary fission fragment mass distribution

The cold fusion reactions related to 208Pb and 209Bi targets leading to superheavy elements with Z=104-112 have been successfully considered in our model recently. Here we briefly discuss this model and extend our consideration to another type of fusion reactions. The interaction potential between heavy ions around the touching point is calculated for various Skyrme force in the extended Thomas-Fermi approximation by using the frozen Hartree-Fock-Bogoliubov densities of the individual nuclei. The shape of fragment mass distribution in the case of ternary fission mode is discussed in detail. (author)