Modeling interactions of photons with pseudoscalar and vector mesons

Abstract

We model interaction of photons, pseudoscalars and vector mesons within the resonance chiral symmetric theory with the SU(3) breaking. The couplings of the model are fitted to the experimental data. Within the developed model we predict the light-by-light contributions to the muon anomalous magnetic moment $a_{\mu }^P=(82.8\pm 3.4)\times 10^{-11}$. The error covers also the model dependence within the class of models considered in this paper. The model was implemented into the Monte Carlo event generator Ekhara to simulate the reactions $e^{+}{e}^{-}\to e^{+}{e}^{-}P$, $P={\pi }^0,\eta ,{\eta }^{\prime }$ and into the Monte Carlo event generator Phokhara to simulate the reactions $e^{+}{e}^{-}\to P\gamma (\gamma )$.

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• The hadronic light-by-light contribution to the muon's anomalous magnetic moment
• Measurement of the Cross Section for $e^{+}{e}^{-}\to$ hadrons at Energies from 2.2324 to 3.6710 GeV
• Dispersion relation for hadronic light-by-light scattering: $\eta$ and ${\eta }^{\prime }$ poles
• Hadronic Footprint of GeV-Mass Dark Matter
• A Robust Description of Hadronic Decays in Light Vector Mediator Models
• EKHARA 3.0: an update of the EKHARA Monte Carlo event generator
• Single ${\pi }^0$ production in $\mu e$ scattering at MUonE
• Precision evaluation of the $\eta$- and ${\eta }^{\prime }$-pole contributions to hadronic light-by-light scattering in the anomalous magnetic moment of the muon
• Hazma Meets HERWIG4DM: Precision Gamma-Ray, Neutrino, and Positron Spectra for Light Dark Matter
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• Radiative hadronization: Photon emission at hadronization from quark-gluon plasma
• Dark Sector first results at Belle II
• OPE of Green Functions of Chiral Currents
• Observation of the double Dalitz decay ${\eta }^{\prime }\to e^{+}{e}^{-}{e}^{+}{e}^{-}$
• Non-Abelian axial anomaly, axial-vector duality, and the pseudoscalar glueball
• Dispersive approach to non-Abelian axial anomaly
• Measurement of the $e^{+}{e}^{-}\to K_S^0{K}_L^0{\pi }^0$ cross sections from $\sqrt{s}=$ 2.000 to 3.080 GeV
• On the three-point order parameters of chiral symmetry breaking
• Single Inclusive ${\pi }^{\pm }$ and $K^{\pm }$ Production in $e^{+}{e}^{-}$ Annihilation at center-of-mass Energies from 2.000 to 3.671GeV
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