Status of Leading-Order Hadronic Vacuum Polarization Dispersion Calculation
High Energy Physics - Phenomenology
2015-06-15 v1 High Energy Physics - Experiment
Abstract
The leading-order hadronic contribution to the muon magnetic anomaly a_{\mu} = (g_{\mu} - 2)/2, calculated using a dispersion integral of e+e- annihilation data and tau decay data, is briefly reviewed. This contribution has the largest uncertainty to the predicted value of a_{\mu}, which differs from the experimental value by ~3.6 (2.4) standard deviations for the e+e- (tau) based analysis. New results since the last workshop and main open issues on the subject are discussed.
Keywords
Cite
@article{arxiv.1302.1896,
title = {Status of Leading-Order Hadronic Vacuum Polarization Dispersion Calculation},
author = {Zhiqing Zhang},
journal= {arXiv preprint arXiv:1302.1896},
year = {2015}
}
Comments
Tau2012 workshop proceedings, 5 pages, 4 figures