Positron supercritical resonances and spontaneous positron creation in slow collisions of heavy nuclei
Abstract
We present a theoretical and computational study of positron supercritical resonances in systems consisting of two highly-charged bare nuclei. The resonance positions and widths depending on the internuclear separation are calculated with the help of the complex-scaling generalized pseudospectral method in modified prolate spheroidal coordinates. The results are applied to estimate the probability of spontaneous positron creation in slow U92+--U92+ and Cm96+--Cm96+ collisions.
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