Symmetry Constraints on Pion Valence Structure

2025/10/28 by Wang, Xiaobin, Chang, Lei, Ding, Minghui +2 · 1 citation
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #Nuclear Experiment (nucl-ex) #Nuclear Theory (nucl-th)

paper · doi:10.48550/arxiv.2510.23950

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.

Citations

• Mapping parton distributions of hadrons with lattice QCD
• Pion, Kaon and nucleon gravitational form factors
• Mapping spatial distributions within pseudoscalar mesons
• Kaon Distribution Functions from Empirical Information
• Sketching pion and proton mass distributions
• Impressions of Parton Distribution Functions
• Nucleon Gravitational Form Factors
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• Consistency of pion form factor and unpolarized transverse momentum dependent parton distributions beyond leading twist in the light-front quark model
• Quark Counting, Drell-Yan West, and the Pion Wave Function
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Cited by

• Symmetry-preserving calculation of pion light-front wave functions

Related

• The Valence Quark Distribution of the Pion
• Understanding the Valence Quark Structure of the Pion through GTMDs
• Unpolarized valence GPDs and form factors of pion in the modified chiral quark model
• Deep Inelastic Scattering and Light-Cone Wave Functions
• Quark Counting, Drell-Yan West, and the Pion Wave Function