{"id":"doi:10.7892/boris.60234","kind":"article","title":"4 Dispersive approach to hadronic light-by-light scattering","authors":["Gilberto Colangelo A","Martin Hoferichter","Massimiliano Procura A","Peter Stoffer"],"author_count":4,"year":2014,"published":"2014-01-01","venue":null,"cited_by":172,"doi":"10.7892/boris.60234","arxiv_id":null,"nct_id":null,"source_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.764.334","archive_url":"https://space-kitty.com/papers/doi:10.7892/boris.60234","updated":null,"pmid":null,"pmcid":null,"openalex_id":"W3099992246","pdf_url":null,"abstract":"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.","abstract_license":"CC-BY (publisher license, via OpenAlex)","license":"cc-by","is_open_access":true,"retracted":false,"peer_reviewed":null,"categories":["Particle physics theoretical and experimental studies"],"details":null,"provenance":"openalex","attribution":"Abstract of \"4 Dispersive approach to hadronic light-by-light scattering\" by Gilberto Colangelo A, Martin Hoferichter, Massimiliano Procura A et al., https://doi.org/10.7892/boris.60234, used under its Creative Commons Attribution license (CC-BY); markup removed, otherwise unmodified.","topics":[{"slug":"particle-physics-bsm","name":"Particle Physics & Beyond the Standard Model","domain_slug":"physics"}],"cited_in_dossiers":[]}