Volume 508 - QCD at the Extremes (QCDEX2025) - Session: Parton Densities and TMDs at low scales, including saturation and recombination.
Resummed BK evolution with DGLAP and kinematic constraint
K. Kutak, W. Li*, A. Stasto and R. Straka
*: corresponding author
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Pre-published on: November 19, 2025
Published on: —
Abstract
I presented the analysis of the small $x$ non-linear evolution equation formulated in momentum space supplemented by higher order terms, based on our publication Phys.Rev.D 111 (2025) 11, 116021. The resummed Balitsky-Kovchegov (BK) equation is solved in a wide range of transverse momentum and longitudinal momentum fractions, extending previous studies performed in Eur. Phys. J. C 29, 521 (2003) and Eur. Phys. J. C 41, 343 (2005). The linear part of the equation is motivated by the renormalization group improved small x resummation, which includes collinear splitting functions and kinematical constraints. By solving the unintegrated gluon density from the equation, we perform fits to deep inelastic scattering reduced cross section data.
DOI: https://doi.org/10.22323/1.508.0024
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