Abstract
The large momentum effective field theory (LaMET) is aiming to calculate parton distributions directly on lattice. In this approach a class of so-called quasi distributions are defined as pure spatial correlations in a finite momentum frame and they are directly calculated on lattice. The light-cone distributions are extracted from the quasi distributions by perturbative matching conditions. We present the application of LaMET on parton distribution functions and generalized parton distributions. Besides, heavy meson’s quasi and light-cone distribution amplitudes are studied under nonrelativistic QCD (NRQCD) factorization framework.
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Xiong, X. Hadron Structures from Large Momentum Effective Field Theory. Few-Body Syst 57, 639–643 (2016). https://doi.org/10.1007/s00601-016-1096-y
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DOI: https://doi.org/10.1007/s00601-016-1096-y