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Cold reaction valleys in the radioactive decay of superheavy nuclei{286}^112, {292}^114 and {296}^116 are studied taking Coulomb and ProximityPotential as the interacting barrier. It is found that in addition to alphaparticle, 8^Be, 14^C, 28^Mg, 34^Si, 50^Ca, etc. are optimal cases of clusterradioactivity since they lie in the cold valleys. Two other regions of deepminima centered on 208^Pb and 132^Sn are also found. Within our Coulomb andProximity Potential Model half-life times and other characteristics such asbarrier penetrability, decay constant for clusters ranging from alpha particleto 68^Ni are calculated. The computed alpha half-lives match with the valuescalculated using Viola--Seaborg--Sobiczewski systematics. The clusters 8^Be and14^C are found to be most probable for emission with T_1/2 < 1030s. Thealpha-decay chains of the three superheavy nuclei are also studied. Thecomputed alpha decay half-lives are compared with the values predicted byGeneralized Liquid Drop Model and they are found to match reasonably well.

Cold reaction valleys in the radioactive decay of superheavy {286}^112, {292}^114 and {296}^116 nuclei