High Z Effects in Accounting for Radiative Component of the Electron Magnetic Moment in HydrogenLike Atomsстатья
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Дата последнего поиска статьи во внешних источниках: 4 февраля 2014 г.
Аннотация:The behavior of electron energy levels in hydrogenlike atoms is studied while taking into account
the nonperturbative interaction between the radiative component of the magnetic moment of a free electron
Δgfree and the Coulomb field of an atomic nucleus with charge Z, including those with Z > 137. It is shown
that for Zα 1 the energylevel shift is rather effectively determined through the matrix elements of the cor
responding Dirac–Pauli operator with relativistic Coulomb wave functions. At the same time, for superheavy
nuclei with Z ~ 170, this shift, generated by Δgfree, is genuinely nonperturbative, behaves like ~Z5 near the
threshold of negative continuum, exceeds all the estimates of radiative corrections coming from vacuum
polarization and electron selfenergy known so far, and turns out to be at least of the same order as the effects
of nuclear charge screening by filled electron shells.