Study pion distribution amplitudes from the electromagnetic form factor by data-driven dispersion relation

Abstract We study the pion electromagnetic form factor in the modulus squared dispersion relation, and do the model independent extraction of the chiral mass embedded in the sub-leading twist light-cone distribution amplitude. The motivation of this work is the recent measurement of timelike form fa...

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Bibliographic Details
Main Authors: Jian Chai, Shan Cheng, Jun Hua
Format: Article
Language:English
Published: SpringerOpen 2023-07-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-023-11725-2