Pseudoscalar Meson Parton Distributions Within Gauge-Invariant Nonlocal Chiral Quark Model

2025/05/10 by Hutauruk, Parada T. P. · 3 citations
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Nuclear Theory (nucl-th)

paper · doi:10.48550/arxiv.2505.06726

Abstract

In this paper, I investigate the gluon distributions for the kaon and pion, as well as the improvement of the valence-quark distributions, in the framework of the gauge-invariant nonlocal chiral quark model (NLχQM), where the momentum dependence is taken into account. I then compute the gluon distributions for the kaon and pion that are dynamically generated from the splitting functions in the DGLAP QCD evolution. In a comparison with the recent lattice QCD and JAM global analysis results, it is found that the results for the pion gluon distributions at Q = 2 GeV, which is set based on the lattice QCD, have a good agreement with the recent lattice QCD data; this is followed up with the up valence-quark distribution of the pion results at Q = 5.2 GeV in comparison with the reanalysis experimental data. The prediction for the kaon gluon distributions at Q = 2 GeV is consistent with the recent lattice QCD calculation.

Cited by

• Effects of flavor-mixings on charged kaon and pion parton distribution functions
• Kaon T-even transverse-momentum-dependent distributions and form factors in a self-consistent light-front quark model
• Kaon structure modifications in strange hadronic matter

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