Attempt to produce the isotopes of element 108 in the fusion reaction 136Xe+136Xe

A setup of the experiment on the production of the isotopes with Z=108 in the fusion reaction Xe-136+Xe-136 and the obtained results are presented. At the excitation energy 0 <= E-x <= 30 MeV of the (272)Hs* compound nucleus the upper limit of the cross section for evaporation residues sigma((1-3)n)<= 4 pb has been measured. The experimental results together with the data from asymmetric reactions point to a strong limitation of the Hs compound nucleus formation with increasing Coulomb forces in the entrance channel of the reaction.