We describe how to calculate the parton distributions fₐ(x,kₜ²,μ²), unintegrated over the parton transverse momentum kₜ, from auxiliary functions hₐ(x,kₜ²), which satisfy single-scale evolution equations. The formalism embodies both DGLAP and BFKL contributions, and accounts for the angular ordering which comes from coherence effects in gluon emission. We check that the unintegrated distributions give the measured values of the deep inelastic structure function F₂(x,Q²).
No takes yet. Share an insight, caveat, or question.
Kimber et al. (2001) studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: