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Approximating light quarks as massless, we apply the Schwinger confinementmechanism to light quarks and infer that a light quark and a light antiquarkinteracting in the QED interaction are confined and bound as a QED meson in(1+1)D. Similarly, a light quark and a light antiquark interacting in the QCDinteraction in the quasi-Abelian approximation are confined and bound as a QCDmeson in (1+1)D. The QED and QCD mesons in (1+1)D can represent physical mesonsin (3+1)D when the flux tube radius is taken into account. Such a theory leadsto a reasonable description of the masses of $\pi^0, \eta$, and $ \eta'$, andits extrapolation to the unknown QED sector yields an isoscalar QED meson atabout 17 MeV and an isovector QED meson at about 38 MeV. The observations ofthe anomalous soft photons, the hypothetical X17 particle, and the hypotheticalE38 particle bear promising evidence for the possible existence of the QEDmesons. Pending further confirmation, they hold important implications on theproperties on the quarks and their interactions.

QED meson description of the anomalous particles at ~17 and ~38 MeV