On the inverse problem of obtaining parton distribution functions from lattice QCD

Computations of parton distribution functions (PDFs) of hadrons form first principles represent an important challenge for lattice QCD. Recent theoretical developments, have identified a class of hadronic matrix elements that in principle provide access to the desired PDFs. However, accessing the PDFs requires solving an ill-defined inverse problem. In this talk I will discuss methods that allow us to address that problem and compare several of the available options.