Lepton anomalous magnetic moments - a theory update
High Energy Physics - Phenomenology
2009-10-31 v1
Abstract
Standard Model contributions to the electron, muon, and tau lepton anomalous magnetic moments, a_l=(g_l-2)/2, are reviewed and updated. The fine structure constant is obtained from the electron g_e-2 and used to refine the QED contribution to the muon g_mu-2. Recent advances in electroweak and hadronic effects on g_mu-2 are summarized. Examples of ``New Physics'' probed by the a_mu Brookhaven experiment E821 are outlined. The prediction for a_tau is also given.
Keywords
Cite
@article{arxiv.hep-ph/9810512,
title = {Lepton anomalous magnetic moments - a theory update},
author = {Andrzej Czarnecki and William J. Marciano},
journal= {arXiv preprint arXiv:hep-ph/9810512},
year = {2009}
}
Comments
8 pages; invited talk at the 5th International Workshop on Tau Lepton Physics (Tau'98), September 1998, Santander, Spain