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Positron Tunnelling through the Coulomb Barrier of Superheavy Nuclei

Norman Dombey·Richard L. Hall
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Abstract

We study beams of medium-energy electrons and positrons which obey the Dirac equation and scatter from nuclei with $Z > 100.$ At small distances the potential is modelled to be that of a charged sphere. A large peak is found in the probability of positron penetration to the origin for $Z \approx 184.$ This may be understood as an example of Klein tunnelling through the Coulomb barrier: it is the analogue of the Klein Paradox for the Coulomb potential.

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Norman Dombey, Richard L. Hall. 2000-01-24. Positron Tunnelling through the Coulomb Barrier of Superheavy Nuclei. https://doi.org/10.1016/s0370-2693(00)00016-2

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