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arXiv · 2605.13422

Pion parton distribution functions and pion-nucleus induced $J/\psi$ production in extended light-front holographic QCD

Jiangshan Lan·Satvir Kaur·Chandan Mondal
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Abstract

We determine the pion parton distribution functions (PDFs) from its light-front wave functions, obtained using the holographic Schr\"odinger equation of light-front chiral QCD combined with the 't Hooft equation in (1+1)-dimensional QCD at large $N_c$. We analyze the large-$x$ behavior of the valence PDF, $\sim (1-x)^{\beta^{\rm eff}_v}$, finding overall consistency with global analyses. These pion PDFs, together with nuclear PDFs, are then used to compute the differential cross sections up to next-to-leading order for inclusive $J/\psi$ production in pion--nucleus collisions, which show good agreement with experimental data across different energies and nuclear targets.

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Jiangshan Lan, Satvir Kaur, Chandan Mondal. 2026-05-13. Pion parton distribution functions and pion-nucleus induced $J/\psi$ production in extended light-front holographic QCD. https://arxiv.org/abs/2605.13422

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