A Guide to Light-Cone PDFs from Lattice QCD: An Overview of Approaches, Techniques, and Results

Figure 28

Improved pion DA obtained in the first lattice study [123] employing the quasidistribution approach. Left: MeV, momenta 0.86 GeV (blue), and 1.32 GeV (green), and extrapolated to (red), along with the asymptotic form (dashed line). Right: MeV, extrapolated to (“LaMET,” red band), together with models and parametrizations: from Dyson-Schwinger equation (“DSE,” blue) [221], fit to Belle data (“Belle,” cyan) [222], parametrized fits to lattice moments (“Param 1,” gray and “Param 2,” green) [223] and the asymptotic form (“Asymp,” purple). Source: [123], reprinted with permission by the Authors and the American Physical Society.