Speaker
Description
The parton-branching solutions of QCD evolution equations have been recently
studied. From this approach, a method to construct both collinear and transverse
momentum dependent (TMD) parton densities has been formulated. In this
formalism, soft-gluon color coherence effects are taken into account by
introducing the soft-gluon resolution scale. Both analytical studies and
numerical solutions of PB evolution equations in the presence of dynamical
resolution scales at Leading-Order (LO) in the strong coupling have been
presented. In this talk, we show preliminary results of fits to the high-precision
deep inelastic scattering (DIS) structure-function measurements regarding the
implications of dynamical resolution scales at Next-to-Leading-Order (NLO)
accuracy in the strong coupling. We also illustrate the difference between LO
and NLO distributions fits.
