The Muon Anomalous Magnetic Moment: A Harbinger For "New Physics"

2001/02/12 by Andrzej Czarnecki, William J. Marciano · 1 citation
Physics and Astronomy · #hep-ph

paper · pdf · doi:10.1103/physrevd.64.013014

published as Phys.Rev. D64 (2001) 013014 · 24 pages

arxiv created 2001/02/12 · arxiv updated 2009/11/30

Abstract

QED, Hadronic, and Electroweak Standard Model contributions to the muon anomalous magnetic moment, a_mu = (g_mu-2)/2, and their theoretical uncertainties are scrutinized. The status and implications of the recently reported 2.6 sigma experiment vs.theory deviation a_mu^exp-a_mu^SM = 426(165) times 10^-11 are discussed. Possible explanations due to supersymmetric loop effects with m_SUSY ≃ 55 sqrttan beta GeV, radiative mass mechanisms at the 1--2 TeV scale and other ``New Physics'' scenarios are examined.

Cited by

• From Higgs physics to lepton flavour violation: current bounds and future prospects for vector-like lepton models