Work

Analytical solution for QCD $$\otimes $$ QED evolution

Year: 2026

Type: article

Abstract: We present an analytical solution for the evolution of parton distributions incorporating mixed-order QCD $$\otimes $$ ⊗ QED corrections, addressing both polarized and unpolarized cases. Using the Altarelli–Parisi kernels extended to mixed order, we solve the DGLAP equations exactly in Mellin N -space and derive the associated Wilson coefficients for the polarized structure function $$g_1.$$ g 1 . Our analytical approach improves computational efficiency and enhances the precision of theoretical predictions in observables sensitive to QED corrections, with relevance for current and future phenomenological applications.

Source: The European Physical Journal C

DOI: 10.1140/epjc/s10052-026-15343-6

Authors: Daniel de Florian, Lucas Palma Conte

Institutions: National University of General San Martín, International Center for Advanced Studies

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: Consejo Nacional de Investigaciones Científicas y Técnicas, Agencia Nacional de Promoción Científica y Tecnológica

Award: G7378882120