HIGHER-ORDER HADRONIC CONTRIBUTIONS TO THE ANOMALOUS MAGNETIC-MOMENT OF LEPTONS

Authors
KRAUSE B
Citation
B. Krause, HIGHER-ORDER HADRONIC CONTRIBUTIONS TO THE ANOMALOUS MAGNETIC-MOMENT OF LEPTONS, Physics letters. Section B, 390(1-4), 1997, pp. 392-400
Citations number
23
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
390
Issue
1-4
Year of publication
1997
Pages
392 - 400
Database
ISI
SICI code
0370-2693(1997)390:1-4<392:HHCTTA>2.0.ZU;2-2
Abstract
Higher-order hadronic contributions to the anomalous magnetic moment o f the electron, muon, and tau lepton are considered in detail. As a ma in result we find a reduction by -11 x 10(-11) for the g-2 of the muon as compared to previous calculations. Analytical expressions for the kernel functions of higher-order hadronic effects are presented. We em ploy the method of asymptotic expansions to calculate kernel functions analytically in terms of a series expansion in the lepton mass.