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arXiv · 2511.08321

Determination of Parton Densities for QCD partons and Electroweak Bosons

K. Moral Figueroa·E. Gallo·H. Jung·S. Taheri Monfared
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Abstract

Parton densities are obtained from a solution of the extended DGLAP-type evolution equation that includes both QCD and electroweak contributions. The equations are solved using the Parton-Branching (PB) approach, and the evolution is performed at next-to-leading order for QCD partons and leading order for electroweak bosons. The initial QCD parton distributions are fitted to HERA deep inelastic scattering data, while photon and weak-boson densities are generated perturbatively and validated against $d\sigma/dQ^2$. The resulting collinear and transverse-momentum dependent (TMD) densities are provided in LHApdf and TMDlib formats for direct phenomenological use.

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K. Moral Figueroa, E. Gallo, H. Jung, S. Taheri Monfared. 2025-11-11. Determination of Parton Densities for QCD partons and Electroweak Bosons. https://arxiv.org/abs/2511.08321

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