Supersymmetry and the anomalous anomalous magnetic moment of the muon

Citation
Jl. Feng et Kt. Matchev, Supersymmetry and the anomalous anomalous magnetic moment of the muon, PHYS REV L, 86(16), 2001, pp. 3480-3483
Citations number
27
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
86
Issue
16
Year of publication
2001
Pages
3480 - 3483
Database
ISI
SICI code
0031-9007(20010416)86:16<3480:SATAAM>2.0.ZU;2-4
Abstract
The recently reported measurement of the muon's anomalous magnetic moment d iffers from the standard model prediction by 2.6 sigma. We examine the impl ications of this discrepancy for supersymmetry. Deviations of the reported magnitude are generic in supersymmetric theories. Based on the new result, we derive model-independent upper bounds on the masses of observable supers ymmetric particles. We also examine several model frameworks. The sign of t he reported deviation is as predicted in many simple models, but disfavors anomaly-mediated supersymmetry breaking.