Proceedings of the VII International School-Seminar on Heavy-Ion Physics Flerov Laboratory of Nuclear Reactions Joint Institute for Nuclear Research May 27–June 1, 2002

Physics of Atomic Nuclei

, Volume 66, Issue 9, pp 1618-1621

First online:

The present state of cluster radioactivity research

  • S. P. TretyakovaAffiliated withFlerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research
  • , A. A. OgloblinAffiliated withRussian Research Centre Kurchatov Institute
  • , G. A. Pik-PichakAffiliated withRussian Research Centre Kurchatov Institute

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Complete mass distributions of the energetically allowed decays of nuclei with A > 112 were calculated including the known regions of cluster radioactivity and cold fission. These processes represent different branches of the more general family of cold decays. A short review of the current experimental situation is given. The existing data indicate that the transition between the sudden (α-decay-like) and adiabatic (fission-like) mechanisms of the fragments formation takes place at the fragments mass values A ∼ 35–40. The study of elastic scattering or fusion-fission reaction of the decay products could serve as a sensitive tool for investigation of the decay mechanism. Some new experiments to be carried out and planned are listed.