General decay law for emission of charged particles and exotic cluster radioactivity

For the emission of charged particles from metastable nuclei, a general decay formula is developed based on the basic phenomenon of resonances occurring in quantum scattering process under Coulomb-nuclear potential. It relates the half-lives of monopole radioactive decays with the Q-values of the ou...

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Bibliographic Details
Published in:Nuclear physics. A 2013-06, Vol.908, p.40-50
Main Authors: Sahu, Basudeb, Paira, Ramkrishna, Rath, Biswanath
Format: Article
Language:English
Subjects:
Analytic expression for decay half-life
Decay of proton, alpha and cluster
General decay law
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Summary:For the emission of charged particles from metastable nuclei, a general decay formula is developed based on the basic phenomenon of resonances occurring in quantum scattering process under Coulomb-nuclear potential. It relates the half-lives of monopole radioactive decays with the Q-values of the outgoing elements in different angular momentum states as well as the masses and charges of the nuclei involved in the decay. The relation is found to be a generalization of the Geiger–Nuttall law in α radioactivity and it explains well all known emission of charged particles including clusters, alpha and proton carrying angular momenta.
ISSN:0375-9474
DOI:10.1016/j.nuclphysa.2013.04.002