Speaker
Wanchen Li
(Fudan University)
Description
We fit the structure function $F_2$ data from HERA using the Balitsky-Kovchegov (BK) equation. The non-linear equation for the unintegrated gluon density is solved, also incorporating resummations due to the DGLAP evolution and kinematical constraints. Parallel computation on GPUs is employed to handle the intensive calculations, achieving a good fit to the structure function with $\chi^2 \sim 1.5$. Notably, we extend the range of integration in the BK equation to a minimum $k^2 = 10^{-3} \, \text{GeV}^2$, successfully capturing a part of the soft contribution that was previously modeled with collinear approximation in earlier approaches.
Primary authors
Prof.
Krzysztof Kutak
(Cracow, INP)
Wanchen Li
(Fudan University)
Prof.
Anna Stasto
(Penn State)
Prof.
Robert Straka
(AGH University of Science and Technology in Kraków)
