Colangelo, Gilberto; Hoferichter, Martin; Procura, Massimiliano; Stoffer, Peter (2014). Dispersive approach to hadronic light-by-light scattering. Journal of High Energy Physics, 2014(9) Springer 10.1007/JHEP09(2014)091
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Based on dispersion theory, we present a formalism for a model-independent evaluation of the hadronic light-by-light contribution to the anomalous magnetic moment of the muon. In particular, we comment on the definition of the pion pole in this framework and provide a master formula that relates the effect from ππ intermediate states to the partial waves for the process γ * γ * → ππ. All contributions are expressed in terms of on-shell form factors and scattering amplitudes, and as such amenable to an experimental determination.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Institute of Theoretical Physics |
UniBE Contributor: |
Colangelo, Gilberto, Hoferichter, Martin, Procura, Massimiliano, Stoffer, Peter |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1029-8479 |
Publisher: |
Springer |
Language: |
English |
Submitter: |
Esther Fiechter |
Date Deposited: |
24 Nov 2014 14:57 |
Last Modified: |
05 Dec 2022 14:38 |
Publisher DOI: |
10.1007/JHEP09(2014)091 |
ArXiv ID: |
1402.7081 |
BORIS DOI: |
10.7892/boris.60234 |
URI: |
https://boris.unibe.ch/id/eprint/60234 |
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