Determination of the Collins-Soper kernel from cross-sections ratios

@article{Martnez2022DeterminationOT,
  title={Determination of the Collins-Soper kernel from cross-sections ratios},
  author={Armando Berm{\'u}dez Mart{\'i}nez and Alexey A. Vladimirov},
  journal={Physical Review D},
  year={2022}
}
We present a novel method of extraction of the Collins-Soper kernel directly from the comparison of differential cross-sections measured at different energies. Using this method, we analyze the pseudo-data generated by the CASCADE event generator and extract the Collins-Soper kernel predicted by the parton-branching model in the wide range of transverse distances. The procedure can be applied, with minor modifications, to the real measured data for Drell-Yan and SIDIS processes. 
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