2020-09-16 15:00 P5A-1
Pion distribution amplitudes from the dispersion relation
Hsiang-Nan Li
We suggest to probe the pion light-cone distribution amplitude, applying a dispersion relation for the pion electromagnetic form factor.
We use the equation between the spacelike form factor and the integrated modulus of the timelike form factor.
Adopting the pion twist-2 distribution amplitude for the former, and he BaBar data for the latter, we fit the Gegenbauer moments from the dispersion relation.