The decay of the vacuum in the field of superheavy nuclear systems
作者： J. Reinhardt , U. M�ller , B. M�ller , W. Greiner
DOI: 10.1007/BF01424757
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摘要: In the strong Coulomb field of a nucleus or quasimolecule withZ≳172 change QED vacuum has been predicted, signalled by spontaneous emission positrons if holes in theK-shell are available. The dynamical semiclassical theory positron excitation heavy ion scattering is presented and extended to collisions with nuclear contact. Interference patterns energy spectrum emitted and, for sufficiently long reaction timeT, emerging characteristic line at position 1sσ-resonance predicted. width calculated dependence on configuration, effect electron screening taken into account. Recent experimental indications [1, 2] structures spectra U-U energies close barrier discussed terms creation. observed could be explained under assumption lasting reactions (T≳4·10−20 s) cross section millibarn region. Various consequences this interpretation discussed.
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