The current status of the lepton g factors

摘要: The past three years have seen new measurements of the $g$-factor anomalies free leptons (${e}^{\ifmmode\pm\else\textpm\fi{}}, {\ensuremath{\mu}}^{\ifmmode\pm\else\textpm\fi{}}$). At same time there been several major theoretical advances including a quantum electrodynamic calculation sixth-order coefficient electron anomaly. In this article we review these recent developments in detail, however also: (1) present historical overview and their interpretation since early days theory, (2) discuss experiments which are currently being attempted but not yet yielded results high precision, (3) attempt to predict most likely course research near future. An extensive Bibliography Tables summarizing both events current work included.