Hadronic light-by-light contribution to (g - 2) <sub>μ</sub>
- Author(s)
- Gilberto Colangelo, Martin Hoferichter, Massimiliano Procura, Peter Stoffer
- Abstract
After a brief introduction on ongoing experimental and theoretical activities on (g - 2)
μ, we report on recent progress in approaching the calculation of the hadronic light-by-light contribution with dispersive methods. General properties of the four-point function of the electromagnetic current in QCD, its Lorentz decomposition and dispersive representation are discussed. On this basis a numerical estimate for the pion box contribution and its rescattering corrections is obtained. We conclude with an outlook for this approach to the calculation of hadronic light-by-light.
- Organisation(s)
- Particle Physics
- External organisation(s)
- Universität Bern, University of Washington, University of California, San Diego
- Journal
- EPJ Web of Conferences
- Volume
- 175
- No. of pages
- 18
- ISSN
- 2101-6275
- DOI
- https://doi.org/10.1051/epjconf/201817501025
- Publication date
- 2018
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103034 Particle physics
- ASJC Scopus subject areas
- General Physics and Astronomy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/94c65b81-5749-4549-ac91-b47ec2430c61