Remarks on higher-order hadronic corrections to the muon g-2
High Energy Physics - Phenomenology
2014-06-19 v2 High Energy Physics - Experiment
Nuclear Theory
Abstract
Recently, it was shown that insertions of hadronic vacuum polarization at O(alpha^4) generate non-negligible effects in the calculation of the anomalous magnetic moment of the muon. This result raises the question if other hadronic diagrams at this order might become relevant for the next round of g-2 measurements as well. In this note we show that a potentially enhanced such contribution, hadronic light-by-light scattering in combination with electron vacuum polarization, is already sufficiently suppressed.
Keywords
Cite
@article{arxiv.1403.7512,
title = {Remarks on higher-order hadronic corrections to the muon g-2},
author = {Gilberto Colangelo and Martin Hoferichter and Andreas Nyffeler and Massimo Passera and Peter Stoffer},
journal= {arXiv preprint arXiv:1403.7512},
year = {2014}
}
Comments
2 pages, 1 figure; journal version