Year: 2026
Type: article
Abstract: The profile of the pion valence quark distribution function (DF) remains controversial. Working from the concepts of QCD effective charges and generalised parton distributions, we show that since the pion elastic electromagnetic form factor is well approximated by a monopole, then, at large light-front momentum fraction, the pion valence quark DF is a convex function described by a large- x power law that is practically consistent with expectations based on quantum chromodynamics.
Source: Chinese Physics Letters
Institutions: Nankai University, Nanjing University, Universidad de Huelva
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Awards: G2088934560, G7705497243, G8920660035
OpenAlex ID: W7165795469