6533b858fe1ef96bd12b584b
RESEARCH PRODUCT
Pseudoscalar Transition Form Factors from Rational Approximants
Pere Masjuansubject
PhysicsParticle physicsMuonAnomalous magnetic dipole momentScatteringPhysicsQC1-999media_common.quotation_subjectHadronFOS: Physical sciencesCurvatureInfinityPseudoscalarHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)High Energy Physics::ExperimentNuclear ExperimentMixing (physics)media_commondescription
The $\pi^0$, $\eta$, and $\eta^\prime$ transition form factors in the space-like region are analyzed at low and intermediate energies in a model-independent way through the use of rational approximants. Slope and curvature parameters as well as their values at infinity are extracted from experimental data. These results are suited for constraining hadronic models such as the ones used for the hadronic light-by-light scattering piece of the anomalous magnetic moment of the muon, and for the mixing parameters of the $\eta - \eta^\prime$ system.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-02-20 |