9 papers
Proton isovector helicity PDF at NNLO and the twist-3 moment from lattice QCD at physical quark masses
Xiang Gao, Andrew D. Hanlon, Swagato Mukherjee +5
We present a lattice quantum chromodynamics calculation of the -dependent isovector quark helicity parton distribution function (PDF) of the proton in the large momentum effecti…
Kinematic enhancement for nucleon interpolators
Daniel Reitinger, Tobias Sizmann, Andreas Schäfer +2
The reliable treatment of highly boosted hadrons is crucial for many lattice QCD applications. For all these cases the kinematically enhanced interpolators promise very significant…
Direct calculation of parton distributions in momentum space from lattice QCD
Anthony V. Grebe, Daniel C. Hackett, Michael L. Wagman +2
Coulomb-gauge quasi-parton distributions can be computed directly in momentum space on a finite lattice, enabled by the commutativity of their renormalization and Fourier transform…
Large-Momentum Effective Theory's Asymptotic Extrapolation vs the Inverse Problem
Jiunn-Wei Chen, Xiang Gao, Jinchen He +10
Large-Momentum Effective Theory (LaMET) is a physics-guided systematic expansion to calculate light-cone parton distributions, including collinear (PDFs) and transverse-momentum-de…
Nucleon Parton Distribution Functions from Boosted Correlations in the Coulomb gauge
Xiang Gao, Jinchen He, Joshua Lin +4
Recently, a novel approach has been proposed to compute parton distributions through the use of boosted correlators fixed in the Coulomb gauge from lattice QCD, within the framewor…
Comments on "Non-local Nucleon Matrix Elements in the Rest Frame"
Xiang Gao, Jinchen He, Yushan Su +2
In a recent paper, "Non-local Nucleon Matrix Elements in the Rest Frame" (Phys. Rev. D 111, 5 (2025)), it was observed that the next-to-leading order calculations of the renormaliz…