Critical nucleus charge in a superstrong magnetic field: effect of screening
arXiv:1112.1891 · doi:10.1103/PhysRevD.85.044058
Abstract
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.
13 pages, 2 figures, version to be published in Physical Review D
References in corpus (4)
- Modified Coulomb Law in a Strongly Magnetized Vacuum
- Electric field of a pointlike charge in a strong magnetic field and ground state of a hydrogenlike atom
- Modification of Coulomb law and energy levels of the hydrogen atom in a superstrong magnetic field
- Atomic levels in superstrong magnetic fields and D=2 QED of massive electrons: screening
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- Coulomb field in a constant electromagnetic background
- Quark-Antiquark System in Ultra-Intense Magnetic Field
- Neutral 3-body system in a strong magnetic field: factorization and exact solutions
- The dependence of the atomic energy levels on a superstrong magnetic field with account of a finite nucleus radius and mass
- Polarization operator of a photon in a magnetic field
- Spatial structure of the modified Coulomb potential in a superstrong magnetic field