Problem of ''deformed'' superheavy nuclei

Problem of experimental confirmation of deformed shapes of superheavy nuclei situated in the neighbourhood of 270Hs is discussed. Measurement of the energy E2+ of the lowest 2+ state in even-even species of these nuclei is considered as a method for this confirmation. The energy is calculated in the cranking approximation for heavy and superheavy nuclei. The branching ratio p2+/p0+ between α decay of a nucleus to this lowest 2+ state and to the ground state 0+ of its daughter is also calculated for these nuclei. The results indicate that a measurement of the energy E2+ for some superheavy nuclei by electron or α spectroscopy is a promising method for the confirmation of their deformed shapes. (orig.)