Speaker
Description
We compute the form factors of both the neutral and charged pion using a non-perturbative running of the strong coupling constant αs obtained in a previous work. These form factors remain poorly understood in the
intermediate energy region, which marks the transition between low-energy and high-energy physics. In particular, experimental data for the neutral pion form factor exhibits a deviation from the expected asymptotic behavior, and the charged pion form factor remains comparatively less explored. To address these issues, we employ the pion distribution amplitude formalism to investigate the form factor behavior in this intermediate regime. Our results suggests that non-perturbative physics of the strong interaction is relevant even at energy scales traditionally
considered perturbative, implying that the perturbative regime could occur at higher energies than previously thought.
