Dispersive approach to hadronic light-by-light scattering
| Data(s) |
17/09/2014
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|---|---|
| Resumo |
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. |
| Formato |
application/pdf |
| Identificador |
http://boris.unibe.ch/60234/1/art%253A10.1007%252FJHEP09%25282014%2529091.pdf 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 <http://dx.doi.org/10.1007/JHEP09(2014)091> doi:10.7892/boris.60234 info:doi:10.1007/JHEP09(2014)091 urn:issn:1029-8479 |
| Idioma(s) |
eng |
| Publicador |
Springer |
| Relação |
http://boris.unibe.ch/60234/ |
| Direitos |
info:eu-repo/semantics/openAccess |
| Fonte |
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 <http://dx.doi.org/10.1007/JHEP09(2014)091> |
| Palavras-Chave | #530 Physics |
| Tipo |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion PeerReviewed |
