Calculations of half-lives of superheavy (SH) nuclei show an unexpected result: for some of them cluster radioactivity (CR) dominates over $\alpha$ decay. We changed the concept of CR to allow emitted particles with $Z_e>28$ from parents with $Z>110$ (daughter around ${}^{208}$Pb). We find a trend toward shorter half-lives and larger branching ratios relative to $\alpha$ decay for heavier SHs. A table of measured masses along with theoretical tables are used to determine Q values.

• Received 21 February 2012

DOI:https://doi.org/10.1103/PhysRevC.85.034615