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.