Critical nucleus charge in a superstrong magnetic field: effect of screening

Details Critical nucleus charge in a superstrong magnetic field: effect of screening Critical nucleus charge in a superstrong magnetic field: effect of screening

2011-12-08

arxiv.org/abs/1112.1891v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 2 figures, version to be published in Physical Review D

Scientific paper

A superstrong magnetic field stimulates the spontaneous production of positrons by naked nuclei by diminishing the value of the critical charge Z_{cr} . The phenomenon of screening of the Coulomb potential by a superstrong magnetic field which has been discovered recently acts in the opposite direction and prevents the nuclei with Z<52 from becoming critical. For Z>52 for a nucleus to become critical stronger B are needed than without taking screening into account.

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