Next-to-Next-to-Leading Order Calculation of Quasiparton Distribution Functions
نویسندگان
چکیده
We present the next-to-next-to-leading order (NNLO) calculation of quark quasiparton distribution functions (PDFs) in large momentum effective theory. The nontrivial factorization at this is established explicitly and full analytic matching coefficients between quasidistribution light-cone are derived. demonstrate that NNLO numerical contributions can improve behavior extracted PDFs sizably. With unprecedented precision study nucleon tomography planned electron-ion collider, high lattice QCD simulations with our results implemented will enable to test theory more precise on nucleons be obtained.
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2021
ISSN: ['1079-7114', '0031-9007', '1092-0145']
DOI: https://doi.org/10.1103/physrevlett.126.072002