Speaker
沈晓民
Description
Fragmentation functions (FFs) and parton density functions (PDFs) are crucial non-perturbative inputs in quantum chromodynamics (QCD) for predicting cross sections of high-energy scattering processes. In this talk, we present progress on global fits of collinear FFs and helicity PDFs by the Non-perturbative Physics Collaboration (NPC). Our analyses incorporate a comprehensive set of precision measurements. We report FFs to both light charged and neutral hadrons, highlighting the improved constraints on FFs achieved through these global fits. We also present the determination of collinear helicity PDFs at NNLO accuracy, and comment on the impact of lattice QCD inputs.
