Seminario_CA

Title: "Testing the large-x behavior of the nonperturbative hadron structure in a global QCD analysis"

Summary: We discuss strategies for comparisons of nonperturbative QCD predictions for parton distribution functions (PDFs) with high-energy experiments in the region of large partonic momentum fractions x.  Analytic functional forms for PDFs cannot be uniquely determined solely based on discrete experimental measurements because of a mathematical property of mimicry of PDF parametrizations. Expectations for PDFs in a proton based on Quark Counting Rules are compared against the effective power laws of (1-x) dependence satisfied by the newest CTEQ global analysis parton distributions. We comment on implications for studies of PDFs in a pion, in particular on the comparison of non-perturbative approaches with phenomenological PDFs, which is extremely relevant for planned experiments that investigate the Emergence of Hadronic Mass.



https://cern.zoom.us/j/94943190670?pwd=TEtseVQ1bEwxanBCeTZFY2lzNzdEdz09