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- W3211909237 endingPage "015002" @default.
- W3211909237 startingPage "015002" @default.
- W3211909237 abstract "Abstract We revisit well-known short-distance constraints relating the hadronic light-by light Green’s function to the ⟨ VVA ⟩ one, that have been a subject of debate over the past years in the context of the muon ( g − 2). Specifically, we identify a relation among the longitudinal and transverse degrees of freedom that is enforced by the axial anomaly that, by contrast, has not received attention in the past. Such relation allows, among other things, to overcome the problem of basis ambiguities when describing axial-vector mesons transition form factors, but further applications are discussed as well, with special focus on the role of axial-vector mesons in the HLbL contribution to the muon ( g − 2). Our results should also contribute to a better understanding of the, so far, controversial interplay among short-distance constraints with longitudinal and transverse degrees of freedom, such as axial-vector mesons. This is key to confront the theoretical and experimental result for the muon ( g − 2) that, currently, exhibits a 4.2 σ tension." @default.
- W3211909237 created "2021-11-22" @default.
- W3211909237 creator A5002066034 @default.
- W3211909237 creator A5014149038 @default.
- W3211909237 creator A5084099035 @default.
- W3211909237 date "2021-12-07" @default.
- W3211909237 modified "2023-10-07" @default.
- W3211909237 title "The interplay of transverse degrees of freedom and axial-vector mesons with short-distance constraints in g − 2" @default.
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