Speaker
Dr
Jianwei Qiu
(Brookhaven National Lab)
Description
Parton distribution functions (PDFs) describe the relation between a hadron and the quarks and gluons (or partons) within it. Without them, we would not be able to understand the hard probes in hadronic collisions, including the Higgs discovery at the LHC. In this talk, I will review a new approach to extract PDFs from the ab initio calculations of single hadron matrix elements using lattice QCD techniques. I argue that the leading power nonperturbative collinear behavior of such matrix elements with a large momentum transfer is the same in both the Euclidean and Minkowski space, and could be systematically factorized into PDFs with infrared safe matching coefficients. PDFs could be extracted from global analysis of the lattice data on these single hadron matrix elements.
Primary author
Dr
Jianwei Qiu
(Brookhaven National Lab)
