Measurement of meson transition form factors at BESIII

Abstract

Meson transition form factors describe the coupling of photons and hadrons. They are an important input to the calculations of the light-by-light scattering contribution of the anomalous magnetic moment of the muon. At the BESIII experiment in Beijing, the transition form factors of pseudoscalar mesons are studied in their Dalitz decays, in their radiative production in $e^{+}{e}^{-}$ annihilation, and in their production in two-photon scattering. All relevant kinematic regimes are covered. An overview of the recent results and the status of the ongoing analyses is provided.

arXiv commentTalk presented CIPANP2018. 9 pages, LaTeX, 4 pdf figures

References in corpus (13)

• Design and Construction of the BESIII Detector
• The Muon g-2
• Reevaluation of the hadronic vacuum polarisation contributions to the Standard Model predictions of the muon g-2 and alpha(mZ) using newest hadronic cross-section data
• Two-pion contribution to hadronic vacuum polarization
• Dispersion relation for hadronic light-by-light scattering: pion pole
• Measurement of the ${\mathrm{e}}^{+}{\mathrm{e}}^{-}\to {\pi }^{+}{\pi }^{-}$ Cross Section between 600 and 900 MeV Using Initial State Radiation
• Dispersion relation for hadronic light-by-light scattering: theoretical foundations
• Dispersive approach to hadronic light-by-light scattering
• Precision measurement of the integrated luminosity of the data taken by BESIII at center of mass energies between 3.810 GeV and 4.600 GeV
• Hadronic Contributions to the Muon $g-2$ and Low-Energy QCD
• Hadronic Light-by-Light Scattering Contribution to the Muon Anomalous Magnetic Moment
• Hadron Production via e+e- Collisions with Initial State Radiation
• EKHARA 3.0: an update of the EKHARA Monte Carlo event generator

Cited by in corpus (4)

• The anomalous magnetic moment of the muon in the Standard Model
• Pion-photon transition form factor in LCSR and tests of asymptotics
• Phenomenological model for the $\gamma \gamma \to {\pi }^{+}{\pi }^{-}{\pi }^0$ reaction
• Photon-pion transition form factor of two photon process at BESIII from light-cone quantum field theory