期刊
PHYSICS LETTERS B
卷 735, 期 -, 页码 90-91出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2014.06.012
关键词
Anomalous magnetic moment of the muon
资金
- Swiss National Science Foundation
- Innovations-und Kooperationsprojekt C-13 of the Schweizerische Universitat-skonferenz SUK/CRUS
- Italian Ministero dell'Universita e della Ricerca Scientifica under the program PRIN
- European Programme INVISIBLES [PITN-GA-2011-289442]
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. (C) 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license.
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