From C to Parton Sea: Bjorken-x Dependence of the PDFs

Understand

Studying the structure of nucleons is not only important to understanding the strong interactions of quarks and gluons, but also to improving the precision of new-physics searches.

• Since a broad class of experiments, including the LHC and dark-matter detection, require Standard-Model backgrounds with parton distribution functions (PDFs) as inputs for disentangling SM contributions from potential new physics.
• For a long time, lattice calculations of the PDFs (as well as many hadron structures) has been limited to the first few moments.
• In this talk, we present a first direct calculation of the Bjorken-x dependence of the PDFs using Large-Momentum Effective Theory (LaMET).